Back End Developer
New Delhi, Delhi
SecNinjaz Technologies LLP
Posted today
Job Viewed
Job Description
Back end Engineer (Golang)
About the Role
We are looking for a skilled Back end Engineer with expertise in Go lang to help build next-generation decentralized communication systems . You will work on peer-to-peer networks, secure messaging, cryptographic protocols, and blockchain integrations within a privacy-focused environment.
This is a full-time, on-site position . Candidates passionate about security, networking, and decentralization will thrive here.
Key Responsibilities
- Design and implement back end systems for decentralized communication and data transfer .
- Develop and optimize P2P protocols and secure messaging layers.
- Build secure relay nodes and offline messaging support systems .
- Integrate advanced cryptography .
- Support self-hosted deployments with Docker and Kubernetes .
- Collaborate with AI engineers and participate in code reviews and security audits .
Tech Stack You’ll Work With
- Languages : Golang (strong expertise), Rust (optional)
- Networking : libp2p, QUIC, Onion Routing (Tor/I2P concepts)
- Cryptography : libsodium, liboqs (PQC: Kyber, Dilithium, Falcon)
- Blockchain : Decentralized Identity (DID) integrations, smart contracts (optional)
- DevOps : Docker, Kubernetes, Terraform
- Monitoring : Prometheus, Grafana
Requirements
- Strong backend development skills, with solid expertise in Golang (Rust is a plus).
- Good understanding of P2P networking , distributed systems , and encryption .
- Practical experience with Docker , Kubernetes , and self-hosted environments .
- Passion for decentralized technologies , network security , and privacy
- Willingness to work on-site full-time.
Bonus Points
- Experience in Mixnet overlays or anonymous routing systems.
- Exposure to blockchain integration for decentralized identity or staking systems.
- Contributions to open-source privacy/security projects.
What We Offer
- Work on impactful and privacy-first decentralized technologies.
- Opportunity to collaborate closely with an expert team on-site.
- Professional growth in the domains of security , networking , and blockchain technologies.
This advertiser has chosen not to accept applicants from your region.
0
Back End Developer
Delhi, Delhi
BayOne Solutions
Posted today
Job Viewed
Job Description
About the Role
We’re looking for a Senior Backend Engineer with deep expertise in Golang, and experience in Ruby, to help us build and scale reliable, high-performance backend systems. As a key member of our engineering team, you’ll contribute to the architecture, development, and operations of mission-critical services that support our platform. You’ll be part of a collaborative environment where clean code, solid engineering practices, and strong computer science fundamentals are deeply valued. You’ll be be building an open financial system that brings the world together.
Responsibilities:
- Design, build, and maintain scalable backend services and APIs using Golang
- Ruby or Ruby on Rails experience is a plus.
- Contribute to the architecture and evolution of our service-oriented / microservices backend.
- Write clean, testable, and efficient code with a strong emphasis on quality.
- Collaborate with product managers, frontend engineers, and other stakeholders to deliver high-impact features.
- Improve performance, monitoring, and observability of backend services.
- Participate in design discussions, code reviews, and technical planning.
- Troubleshoot and resolve production issues with a focus on reliability and root-cause analysis.
Qualifications:
- 5+ years of software engineering experience, preferably in high-scale backend systems.
- Strong proficiency in Golang is required with Ruby or Ruby on Rails experience .
- Solid foundation in computer science fundamentals — algorithms, data structures, and system design.
- Proven experience building and scaling distributed systems, APIs, or backend platforms in a production environment.
- Familiarity with DevOps practices, monitoring tools, and cloud infrastructure (e.g., AWS, GCP, Docker, Kubernetes) is a bonus.
- Comfortable working in a fast-paced, agile environment with a collaborative mindset.
- Strong problem-solving skills and a passion for building high-quality software.
We’re looking for a Senior Backend Engineer with deep expertise in Golang, and experience in Ruby, to help us build and scale reliable, high-performance backend systems. As a key member of our engineering team, you’ll contribute to the architecture, development, and operations of mission-critical services that support our platform. You’ll be part of a collaborative environment where clean code, solid engineering practices, and strong computer science fundamentals are deeply valued. You’ll be be building an open financial system that brings the world together.
Responsibilities:
- Design, build, and maintain scalable backend services and APIs using Golang
- Ruby or Ruby on Rails experience is a plus.
- Contribute to the architecture and evolution of our service-oriented / microservices backend.
- Write clean, testable, and efficient code with a strong emphasis on quality.
- Collaborate with product managers, frontend engineers, and other stakeholders to deliver high-impact features.
- Improve performance, monitoring, and observability of backend services.
- Participate in design discussions, code reviews, and technical planning.
- Troubleshoot and resolve production issues with a focus on reliability and root-cause analysis.
Qualifications:
- 5+ years of software engineering experience, preferably in high-scale backend systems.
- Strong proficiency in Golang is required with Ruby or Ruby on Rails experience .
- Solid foundation in computer science fundamentals — algorithms, data structures, and system design.
- Proven experience building and scaling distributed systems, APIs, or backend platforms in a production environment.
- Familiarity with DevOps practices, monitoring tools, and cloud infrastructure (e.g., AWS, GCP, Docker, Kubernetes) is a bonus.
- Comfortable working in a fast-paced, agile environment with a collaborative mindset.
- Strong problem-solving skills and a passion for building high-quality software.
This advertiser has chosen not to accept applicants from your region.
1
Back End Developer
Delhi, Delhi
Gabeo.ai
Posted today
Job Viewed
Job Description
Immediate joiners only – please apply only if you are available to start right away.
Position: Backend Software Engineer
Location: Remote
Employment type: Full-time. part-time considered for the right candidate.
We are seeking a Backend Software Engineer (remote, contract) to join Gabeo.ai. This role is perfect for someone versatile, hands-on, and eager to work across backend, cloud, DevOps, and occasionally frontend or desktop frameworks.
Gabeo.ai is a fast-growing, venture-backed health technology startup partnering with leading healthcare organizations. We are building AI-driven products for revenue cycle management and scaling our engineering team quickly.
Key Responsibilities
• Design, build, and maintain scalable backend services using Python (Flask/FastAPI)
• Develop cloud-native solutions on Google Cloud Platform (GCP), including pipelines and infra setup
• Contribute to DevOps practices, CI/CD pipelines, and deployment automation
• Support frontend components with Next.js/React (a plus, not mandatory)
• Collaborate on Golang-based projects (parsers, system tools, or desktop apps)
• Maintain and enhance desktop applications built with Fyne (Windows/macOS)
• Write clean, maintainable, well-documented code
• Troubleshoot, optimize performance, and ensure system security
Required Skills & Experience
• 2–4 years of experience in software development
• Strong proficiency in Python with Flask and/or FastAPI
• Hands-on experience with Google Cloud Platform (GCP) – cloud functions, pub/sub, pipelines
• Familiarity with DevOps practices (CI/CD, deployment, monitoring)
• Basic/intermediate knowledge of Next.js and React.js
Preferred Skills (Huge Plus)
• Proficiency in Golang for system tools or backend services
• Experience with the Fyne framework for desktop apps (Windows/macOS)
• Prior work with EDI file parsing or pipeline automation
• Solid grasp of cloud-native architecture and distributed systems
Soft Skills
• Strong problem-solving and debugging abilities
• Ability to work independently and collaboratively
• Clear communication and proactive mindset
• Adaptability across different tech stacks
Why join:
• Fast-paced startup with immediate impact
• Work across multiple technologies (backend, cloud, frontend, desktop)
• Remote-first flexibility with ownership of deliverables
• Opportunity to grow with a high-traction Silicon Valley startup
If this sounds like you, please reach out to or DM directly.
Position: Backend Software Engineer
Location: Remote
Employment type: Full-time. part-time considered for the right candidate.
We are seeking a Backend Software Engineer (remote, contract) to join Gabeo.ai. This role is perfect for someone versatile, hands-on, and eager to work across backend, cloud, DevOps, and occasionally frontend or desktop frameworks.
Gabeo.ai is a fast-growing, venture-backed health technology startup partnering with leading healthcare organizations. We are building AI-driven products for revenue cycle management and scaling our engineering team quickly.
Key Responsibilities
• Design, build, and maintain scalable backend services using Python (Flask/FastAPI)
• Develop cloud-native solutions on Google Cloud Platform (GCP), including pipelines and infra setup
• Contribute to DevOps practices, CI/CD pipelines, and deployment automation
• Support frontend components with Next.js/React (a plus, not mandatory)
• Collaborate on Golang-based projects (parsers, system tools, or desktop apps)
• Maintain and enhance desktop applications built with Fyne (Windows/macOS)
• Write clean, maintainable, well-documented code
• Troubleshoot, optimize performance, and ensure system security
Required Skills & Experience
• 2–4 years of experience in software development
• Strong proficiency in Python with Flask and/or FastAPI
• Hands-on experience with Google Cloud Platform (GCP) – cloud functions, pub/sub, pipelines
• Familiarity with DevOps practices (CI/CD, deployment, monitoring)
• Basic/intermediate knowledge of Next.js and React.js
Preferred Skills (Huge Plus)
• Proficiency in Golang for system tools or backend services
• Experience with the Fyne framework for desktop apps (Windows/macOS)
• Prior work with EDI file parsing or pipeline automation
• Solid grasp of cloud-native architecture and distributed systems
Soft Skills
• Strong problem-solving and debugging abilities
• Ability to work independently and collaboratively
• Clear communication and proactive mindset
• Adaptability across different tech stacks
Why join:
• Fast-paced startup with immediate impact
• Work across multiple technologies (backend, cloud, frontend, desktop)
• Remote-first flexibility with ownership of deliverables
• Opportunity to grow with a high-traction Silicon Valley startup
If this sounds like you, please reach out to or DM directly.
This advertiser has chosen not to accept applicants from your region.
2
Back End Developer
Delhi, Delhi
Elife Transfer
Posted today
Job Viewed
Job Description
Our company:
A fast-growing start-up headquartered in San Francisco, CA, USA in the heart of Silicon Valley. We recruit worldwide as our customer base is global. All employees outside San Francisco headquarter work remotely.
Elife is a Startup developing innovative technology in the passenger transport industry, providing any type of ground transportation worldwide, including Group/event transportation, NEMT transportation, senior and disability transportation, pet relocation, bilingual driver for non-English speak clients.
Our market is the world. Our customers are everywhere. Our platform and apps are built on the cloud. We have endless exciting problems to solve and we only use the best and latest technology.
Vision: Reliable ground transportation services globally with all types of vehicles.
Mission: Empower high-quality local fleets.
Job Title: Senior Backend Python Developer
Responsibilities:
- Design, develop, and maintain backend applications for customers worldwide.
- Collaborate with cross-functional teams, including frontend, backend, testing, and application design, to deliver integrated solutions.
- Build and optimize Python/MySQL backends hosted on Amazon Web Services (AWS).
- Enhance, maintain, and troubleshoot existing software applications to ensure performance and reliability.
- Write clean, highly scalable, and testable code following best practices.
- Identify, analyze, and resolve programming bugs and performance bottlenecks.
- Contribute to technical documentation and knowledge sharing across the team.
What We’re Looking For:
- Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent practical experience).
- 5+ years of experience in backend development, particularly with web and mobile applications.
- Strong expertise in Python and MySQL, with proven experience building scalable applications.
- Hands-on experience with AWS cloud services.
- Solid understanding of software development lifecycle (SDLC), version control, and CI/CD practices.
- Strong analytical and problem-solving skills with attention to detail.
- Ability to manage time effectively and deliver in a fast-paced, global environment.
- A proactive, can-do attitude and the ability to learn quickly.
- Strong teamwork and communication skills, with a collaborative mindset.
- Understanding of ML fundamentals, Building APIs/services to serve ML models
Our Apps
- Single-page web app running on both PC and mobile devices.
- Python/MySQL backend hosted on Amazon Web Services.
- Our customers and markets are worldwide in North America, South America, Asia, Europe, and Africa.
A fast-growing start-up headquartered in San Francisco, CA, USA in the heart of Silicon Valley. We recruit worldwide as our customer base is global. All employees outside San Francisco headquarter work remotely.
Elife is a Startup developing innovative technology in the passenger transport industry, providing any type of ground transportation worldwide, including Group/event transportation, NEMT transportation, senior and disability transportation, pet relocation, bilingual driver for non-English speak clients.
Our market is the world. Our customers are everywhere. Our platform and apps are built on the cloud. We have endless exciting problems to solve and we only use the best and latest technology.
Vision: Reliable ground transportation services globally with all types of vehicles.
Mission: Empower high-quality local fleets.
Job Title: Senior Backend Python Developer
Responsibilities:
- Design, develop, and maintain backend applications for customers worldwide.
- Collaborate with cross-functional teams, including frontend, backend, testing, and application design, to deliver integrated solutions.
- Build and optimize Python/MySQL backends hosted on Amazon Web Services (AWS).
- Enhance, maintain, and troubleshoot existing software applications to ensure performance and reliability.
- Write clean, highly scalable, and testable code following best practices.
- Identify, analyze, and resolve programming bugs and performance bottlenecks.
- Contribute to technical documentation and knowledge sharing across the team.
What We’re Looking For:
- Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent practical experience).
- 5+ years of experience in backend development, particularly with web and mobile applications.
- Strong expertise in Python and MySQL, with proven experience building scalable applications.
- Hands-on experience with AWS cloud services.
- Solid understanding of software development lifecycle (SDLC), version control, and CI/CD practices.
- Strong analytical and problem-solving skills with attention to detail.
- Ability to manage time effectively and deliver in a fast-paced, global environment.
- A proactive, can-do attitude and the ability to learn quickly.
- Strong teamwork and communication skills, with a collaborative mindset.
- Understanding of ML fundamentals, Building APIs/services to serve ML models
Our Apps
- Single-page web app running on both PC and mobile devices.
- Python/MySQL backend hosted on Amazon Web Services.
- Our customers and markets are worldwide in North America, South America, Asia, Europe, and Africa.
This advertiser has chosen not to accept applicants from your region.
3
Back End Developer
Delhi, Delhi
Zetheta Algorithms Private Limited
Posted today
Job Viewed
Job Description
About the Company:
ZeTheta Algorithms Private Limited is a FinTech start-up which has been recently set up and is developing innovative AI tools.
the Role:
The Back-End Web Developer Intern will be responsible for server-side application logic, database design, and building secure and efficient APIs. This includes password authentication systems, data processing logic, and integration with AI features.
Responsibilities:
- Design, build and implement secure RESTful APIs using Node.js + Express.js
- Develop and maintain server-side applications using frameworks such as Django, Flask, Express (Node.js), or Laravel (PHP)
- Implement authentication and authorization systems (Firebase free tier/ PostgreSQL)
- Design and manage database schemas using MongoDB Atlas (free tier) or other databases with PostGRE SQL (Supabase) essential skill requirement.
- Create efficient data models and database queries
- Develop blockchain-based certificate verification system
- Implement server-side validation and security measures
- Troubleshoot and optimize backend performance
- Integrate third-party services and external APIs when needed
- Document API endpoints and backend functionality for front-end developers
Qualifications:
- Student or Fresh Graduate - No experience required.
- Basic proficiency in one or more backend frameworks (Node.js/Express, Django, Flask, Laravel)
- Programming skills in JavaScript, Python, PHP, or Ruby
- Familiarity with MongoDB, PostgreSQL (Supabase), SQLite, or NoSQL databases
- Understanding of RESTful API design principles
- Basic knowledge of authentication and authorization mechanisms
- Awareness of security concerns and best practices
- Ability to work independently in a remote setting
Benefits:
- Opportunity to build practical skills with modern backend technologies
- Experience working with databases and API design
- Exposure to blockchain technology applications
- Enhance your professional portfolio with real-world projects
- Remote work flexibility
Internship Details:
- Duration: Self paced with options of 1, 2, 3, 4 or 6 months.
- Type: Unpaid
ZeTheta Algorithms Private Limited is a FinTech start-up which has been recently set up and is developing innovative AI tools.
the Role:
The Back-End Web Developer Intern will be responsible for server-side application logic, database design, and building secure and efficient APIs. This includes password authentication systems, data processing logic, and integration with AI features.
Responsibilities:
- Design, build and implement secure RESTful APIs using Node.js + Express.js
- Develop and maintain server-side applications using frameworks such as Django, Flask, Express (Node.js), or Laravel (PHP)
- Implement authentication and authorization systems (Firebase free tier/ PostgreSQL)
- Design and manage database schemas using MongoDB Atlas (free tier) or other databases with PostGRE SQL (Supabase) essential skill requirement.
- Create efficient data models and database queries
- Develop blockchain-based certificate verification system
- Implement server-side validation and security measures
- Troubleshoot and optimize backend performance
- Integrate third-party services and external APIs when needed
- Document API endpoints and backend functionality for front-end developers
Qualifications:
- Student or Fresh Graduate - No experience required.
- Basic proficiency in one or more backend frameworks (Node.js/Express, Django, Flask, Laravel)
- Programming skills in JavaScript, Python, PHP, or Ruby
- Familiarity with MongoDB, PostgreSQL (Supabase), SQLite, or NoSQL databases
- Understanding of RESTful API design principles
- Basic knowledge of authentication and authorization mechanisms
- Awareness of security concerns and best practices
- Ability to work independently in a remote setting
Benefits:
- Opportunity to build practical skills with modern backend technologies
- Experience working with databases and API design
- Exposure to blockchain technology applications
- Enhance your professional portfolio with real-world projects
- Remote work flexibility
Internship Details:
- Duration: Self paced with options of 1, 2, 3, 4 or 6 months.
- Type: Unpaid
This advertiser has chosen not to accept applicants from your region.
4
Back End Developer
Delhi, Delhi
Tamara
Posted today
Job Viewed
Job Description
About Us
Tamara is the leading fintech platform in Saudi Arabia and the wider GCC region with a mission to help people make their dreams come true by building the most customer-centric financial super-app on earth. The company serves millions of users in the region and partners with leading global and regional brands such as SHEIN, Jarir, noon, IKEA and Amazon, as well as small and medium businesses.
Tamara is Saudi Arabia’s first fintech unicorn and is backed by Sanabil Investments, a wholly owned company by the Public Investment Fund (PIF), SNB Capital, Checkout.com, amongst others. The company operates from its headquarters in Riyadh, with additional regional and global support offices.
Your role
We're seeking Backend Engineers for our team. As a Backend Engineer, you will be crucial in leading the way to build cutting-edge platforms that enable seamless and scalable transactions.
Drawing on your proficiency in payment, shopping, and banking systems you will be responsible for designing, developing, and optimizing our secure and robust software infrastructure to create unique experiences only Tamara can provide.
With a proven track record of managing cross-functional teams you will collaborate with a diverse ecosystem of talented engineers, designers, analysts, product experts, and other team members to leverage system design, create technical solutions, dive deep into complex problems and ultimately revolutionize the way millions of users shop, pay, and bank.
You are a driven, determined, curious team player, knowing that collective strength means we all win. With a positive outlook, you are solution-oriented–persevering regardless of circumstances, always finding a way through, no matter the challenges.
You will effectively find a way to work with everyone through empathy and respect. You will be driven and comfortable with responding quickly with urgency, with the ability to change course without losing momentum and energy, resulting in great success.
Your responsibilities
- Design, build and maintain APIs, services, and systems across Tamara’s engineering teams.
- Debug production issues across services and multiple levels of the stack
- Work with engineers across the company to build delightful features that span various parts of the system
- Collaborate with our business, product, and operations teams to understand and solve our users’ pain points.
Your expertise
- You have 4+ years of software development experience
- You have strong software development experience building scalable products and services
- Good understanding of SOLID principles, Design Patterns
- Experience with any one backend programming language like : Java, Python, Go etc.
- Experience with Backend frameworks
- Experience with distributed systems with messaging tools like Kafka or RabbitMQ
- Experience with Databases, APIs, testing etc.
- Expertise in building product at scale or startup experience is a plus
- Knowledge of Javascript, Vue.js, HTML and CSS - is a plus
- Knowledge of AWS, OCI, Kubernetes/Docker
- You are proactive, goal-orientated, and self-structured in your approach
- You have experience as a developer in a startup company - is a plus
- Team player, creative thinker, and passionate about exploring new technologies
- Good written and spoken communication skills in English
To learn more about how we protect your privacy, please visit our Candidate privacy notice.
Tamara is the leading fintech platform in Saudi Arabia and the wider GCC region with a mission to help people make their dreams come true by building the most customer-centric financial super-app on earth. The company serves millions of users in the region and partners with leading global and regional brands such as SHEIN, Jarir, noon, IKEA and Amazon, as well as small and medium businesses.
Tamara is Saudi Arabia’s first fintech unicorn and is backed by Sanabil Investments, a wholly owned company by the Public Investment Fund (PIF), SNB Capital, Checkout.com, amongst others. The company operates from its headquarters in Riyadh, with additional regional and global support offices.
Your role
We're seeking Backend Engineers for our team. As a Backend Engineer, you will be crucial in leading the way to build cutting-edge platforms that enable seamless and scalable transactions.
Drawing on your proficiency in payment, shopping, and banking systems you will be responsible for designing, developing, and optimizing our secure and robust software infrastructure to create unique experiences only Tamara can provide.
With a proven track record of managing cross-functional teams you will collaborate with a diverse ecosystem of talented engineers, designers, analysts, product experts, and other team members to leverage system design, create technical solutions, dive deep into complex problems and ultimately revolutionize the way millions of users shop, pay, and bank.
You are a driven, determined, curious team player, knowing that collective strength means we all win. With a positive outlook, you are solution-oriented–persevering regardless of circumstances, always finding a way through, no matter the challenges.
You will effectively find a way to work with everyone through empathy and respect. You will be driven and comfortable with responding quickly with urgency, with the ability to change course without losing momentum and energy, resulting in great success.
Your responsibilities
- Design, build and maintain APIs, services, and systems across Tamara’s engineering teams.
- Debug production issues across services and multiple levels of the stack
- Work with engineers across the company to build delightful features that span various parts of the system
- Collaborate with our business, product, and operations teams to understand and solve our users’ pain points.
Your expertise
- You have 4+ years of software development experience
- You have strong software development experience building scalable products and services
- Good understanding of SOLID principles, Design Patterns
- Experience with any one backend programming language like : Java, Python, Go etc.
- Experience with Backend frameworks
- Experience with distributed systems with messaging tools like Kafka or RabbitMQ
- Experience with Databases, APIs, testing etc.
- Expertise in building product at scale or startup experience is a plus
- Knowledge of Javascript, Vue.js, HTML and CSS - is a plus
- Knowledge of AWS, OCI, Kubernetes/Docker
- You are proactive, goal-orientated, and self-structured in your approach
- You have experience as a developer in a startup company - is a plus
- Team player, creative thinker, and passionate about exploring new technologies
- Good written and spoken communication skills in English
To learn more about how we protect your privacy, please visit our Candidate privacy notice.
This advertiser has chosen not to accept applicants from your region.
5
Back End Developer
New Delhi, Delhi
SecNinjaz Technologies LLP
Posted today
Job Viewed
Job Description
Back end Engineer (Golang)
About the Role
We are looking for a skilled Back end Engineer with expertise in Go lang to help build next-generation decentralized communication systems . You will work on peer-to-peer networks, secure messaging, cryptographic protocols, and blockchain integrations within a privacy-focused environment.
This is a full-time, on-site position . Candidates passionate about security, networking, and decentralization will thrive here.
Key Responsibilities
Design and implement back end systems for decentralized communication and data transfer .
Develop and optimize P2P protocols and secure messaging layers.
Build secure relay nodes and offline messaging support systems .
Integrate advanced cryptography .
Support self-hosted deployments with Docker and Kubernetes .
Collaborate with AI engineers and participate in code reviews and security audits .
Tech Stack You’ll Work With
Languages : Golang (strong expertise), Rust (optional)
Networking : libp2p, QUIC, Onion Routing (Tor/I2P concepts)
Cryptography : libsodium, liboqs (PQC: Kyber, Dilithium, Falcon)
Blockchain : Decentralized Identity (DID) integrations, smart contracts (optional)
DevOps : Docker, Kubernetes, Terraform
Monitoring : Prometheus, Grafana
Requirements
Strong backend development skills, with solid expertise in Golang (Rust is a plus).
Good understanding of P2P networking , distributed systems , and encryption .
Practical experience with Docker , Kubernetes , and self-hosted environments .
Passion for decentralized technologies , network security , and privacy
Willingness to work on-site full-time.
Bonus Points
Experience in Mixnet overlays or anonymous routing systems.
Exposure to blockchain integration for decentralized identity or staking systems.
Contributions to open-source privacy/security projects.
What We Offer
Work on impactful and privacy-first decentralized technologies.
Opportunity to collaborate closely with an expert team on-site.
Professional growth in the domains of security , networking , and blockchain technologies.
About the Role
We are looking for a skilled Back end Engineer with expertise in Go lang to help build next-generation decentralized communication systems . You will work on peer-to-peer networks, secure messaging, cryptographic protocols, and blockchain integrations within a privacy-focused environment.
This is a full-time, on-site position . Candidates passionate about security, networking, and decentralization will thrive here.
Key Responsibilities
Design and implement back end systems for decentralized communication and data transfer .
Develop and optimize P2P protocols and secure messaging layers.
Build secure relay nodes and offline messaging support systems .
Integrate advanced cryptography .
Support self-hosted deployments with Docker and Kubernetes .
Collaborate with AI engineers and participate in code reviews and security audits .
Tech Stack You’ll Work With
Languages : Golang (strong expertise), Rust (optional)
Networking : libp2p, QUIC, Onion Routing (Tor/I2P concepts)
Cryptography : libsodium, liboqs (PQC: Kyber, Dilithium, Falcon)
Blockchain : Decentralized Identity (DID) integrations, smart contracts (optional)
DevOps : Docker, Kubernetes, Terraform
Monitoring : Prometheus, Grafana
Requirements
Strong backend development skills, with solid expertise in Golang (Rust is a plus).
Good understanding of P2P networking , distributed systems , and encryption .
Practical experience with Docker , Kubernetes , and self-hosted environments .
Passion for decentralized technologies , network security , and privacy
Willingness to work on-site full-time.
Bonus Points
Experience in Mixnet overlays or anonymous routing systems.
Exposure to blockchain integration for decentralized identity or staking systems.
Contributions to open-source privacy/security projects.
What We Offer
Work on impactful and privacy-first decentralized technologies.
Opportunity to collaborate closely with an expert team on-site.
Professional growth in the domains of security , networking , and blockchain technologies.
This advertiser has chosen not to accept applicants from your region.
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6
Back End Developer
Delhi, Delhi
CareerUS Solutions
Posted today
Job Viewed
Job Description
Job Summary:
The Back-End Developer is responsible for designing, developing, and maintaining the server-side logic, databases, and APIs that power web and mobile applications. The role focuses on building scalable, secure, and high-performing systems while collaborating closely with front-end developers and other technical teams to deliver complete solutions.
Key Responsibilities:
- Design, develop, and maintain server-side applications, APIs, and databases.
- Write clean, maintainable, and efficient code following best practices and coding standards.
- Integrate front-end elements with server-side logic to deliver seamless functionality.
- Develop and manage RESTful or GraphQL APIs for various services and integrations.
- Optimize applications for speed, scalability, and performance.
- Collaborate with front-end developers, DevOps engineers, and product teams to define and deliver features.
- Implement robust data storage solutions (SQL/NoSQL databases).
- Ensure security and data protection across applications and systems.
- Participate in code reviews, testing, debugging, and continuous improvement initiatives.
- Stay up to date with new technologies and frameworks relevant to backend development.
Key Skills & Competencies:
- Proficiency in one or more back-end programming languages such as Node.js, Python, Java, Go, Ruby, or .NET.
- Strong understanding of databases (MySQL, PostgreSQL, MongoDB, Redis, etc.).
- Experience with API design and development (RESTful/GraphQL).
- Familiarity with microservices architecture and containerization (Docker, Kubernetes).
- Knowledge of authentication protocols (OAuth, JWT, SAML).
- Experience with CI/CD pipelines and cloud platforms (AWS, Azure, or GCP).
- Strong problem-solving, debugging, and analytical skills.
- Familiarity with version control systems (Git, GitHub, GitLab).
- Understanding of security best practices for web applications.
Education & Experience:
- Bachelor’s or Master’s degree in Computer Science, Information Technology, or a related field.
- Proven experience in developing and deploying scalable backend systems.
- Experience working in Agile/Scrum environments is preferred.
The Back-End Developer is responsible for designing, developing, and maintaining the server-side logic, databases, and APIs that power web and mobile applications. The role focuses on building scalable, secure, and high-performing systems while collaborating closely with front-end developers and other technical teams to deliver complete solutions.
Key Responsibilities:
- Design, develop, and maintain server-side applications, APIs, and databases.
- Write clean, maintainable, and efficient code following best practices and coding standards.
- Integrate front-end elements with server-side logic to deliver seamless functionality.
- Develop and manage RESTful or GraphQL APIs for various services and integrations.
- Optimize applications for speed, scalability, and performance.
- Collaborate with front-end developers, DevOps engineers, and product teams to define and deliver features.
- Implement robust data storage solutions (SQL/NoSQL databases).
- Ensure security and data protection across applications and systems.
- Participate in code reviews, testing, debugging, and continuous improvement initiatives.
- Stay up to date with new technologies and frameworks relevant to backend development.
Key Skills & Competencies:
- Proficiency in one or more back-end programming languages such as Node.js, Python, Java, Go, Ruby, or .NET.
- Strong understanding of databases (MySQL, PostgreSQL, MongoDB, Redis, etc.).
- Experience with API design and development (RESTful/GraphQL).
- Familiarity with microservices architecture and containerization (Docker, Kubernetes).
- Knowledge of authentication protocols (OAuth, JWT, SAML).
- Experience with CI/CD pipelines and cloud platforms (AWS, Azure, or GCP).
- Strong problem-solving, debugging, and analytical skills.
- Familiarity with version control systems (Git, GitHub, GitLab).
- Understanding of security best practices for web applications.
Education & Experience:
- Bachelor’s or Master’s degree in Computer Science, Information Technology, or a related field.
- Proven experience in developing and deploying scalable backend systems.
- Experience working in Agile/Scrum environments is preferred.
This advertiser has chosen not to accept applicants from your region.
7
Back End Developer
Delhi, Delhi
AvenDATA
Posted today
Job Viewed
Job Description
Backend Developer (ASP.NET Core / C#)
Location: 100% Remote (India)
Experience: 3–6 Years
Type: Full-time, Long-term Start
Date: ASAP
Who We Are
We are a European tech-driven company working on scalable, secure, and high-performance web applications for clients around the world. To strengthen our backend development capabilities, we are looking for skilled Backend Developers who enjoy clean architecture, smart problem-solving, and building solid APIs.
Your Role
As a Backend Developer, you will:
• Design and build robust REST APIs and backend services using ASP.NET Core (.NET 6+)
• Work closely with frontend developers and DevOps
• Optimize database structures and queries (SQL Server / PostgreSQL / MongoDB)
• Ensure performance, scalability, and security of the system
• Write clean, testable, and maintainable code in C#
• Participate in technical discussions, code reviews, and sprints
What We Expect
• 3–6 years of backend development experience
• Solid experience with ASP.NET Core, C#, and Entity Framework Core
• Good understanding of REST APIs, JWT/Auth, Error handling, Middlewares
• Experience with SQL Server, PostgreSQL, or other modern databases
• Familiarity with Git, Docker, and CI/CD workflows
• Good English communication skills (written & verbal)
Bonus: Experience with message queues (e.g. RabbitMQ, Azure Service Bus), microservices, or cloud platforms (AWS, GCP, Azure) What
You’ll Get
• 100% Remote – Work from anywhere in India
• Flexible working hours
• Very good salary (INR-based), above market average
• Long-term position with stable projects
• International, experienced, and supportive team
• Opportunities for personal growth and learning
• Work on real-world products with real impact
We look forward to receiving your application.
Location: 100% Remote (India)
Experience: 3–6 Years
Type: Full-time, Long-term Start
Date: ASAP
Who We Are
We are a European tech-driven company working on scalable, secure, and high-performance web applications for clients around the world. To strengthen our backend development capabilities, we are looking for skilled Backend Developers who enjoy clean architecture, smart problem-solving, and building solid APIs.
Your Role
As a Backend Developer, you will:
• Design and build robust REST APIs and backend services using ASP.NET Core (.NET 6+)
• Work closely with frontend developers and DevOps
• Optimize database structures and queries (SQL Server / PostgreSQL / MongoDB)
• Ensure performance, scalability, and security of the system
• Write clean, testable, and maintainable code in C#
• Participate in technical discussions, code reviews, and sprints
What We Expect
• 3–6 years of backend development experience
• Solid experience with ASP.NET Core, C#, and Entity Framework Core
• Good understanding of REST APIs, JWT/Auth, Error handling, Middlewares
• Experience with SQL Server, PostgreSQL, or other modern databases
• Familiarity with Git, Docker, and CI/CD workflows
• Good English communication skills (written & verbal)
Bonus: Experience with message queues (e.g. RabbitMQ, Azure Service Bus), microservices, or cloud platforms (AWS, GCP, Azure) What
You’ll Get
• 100% Remote – Work from anywhere in India
• Flexible working hours
• Very good salary (INR-based), above market average
• Long-term position with stable projects
• International, experienced, and supportive team
• Opportunities for personal growth and learning
• Work on real-world products with real impact
We look forward to receiving your application.
This advertiser has chosen not to accept applicants from your region.
8
Back End Developer
Delhi, Delhi
PackIntelX
Posted today
Job Viewed
Job Description
Company Description
PackIntelX offers an all-in-one digital platform that empowers companies to prepare for EU Packaging regulations (PPWR), Recyclability, Recycled Content integration, and Packaging conformity. We build a bridge between regulations and operations, ensuring companies are fully compliant and well-prepared for current and future packaging requirements.
Role Description
This is a full-time remote-role for a Back End Developer. The responsibilities mainly focus on structured software development (Python) and AI-integration. This role involves collaborating with front-end developers and programming to ensure seamless integration and functionality of various systems.
Qualifications
- Proficiency in Back-End Development
- Skilled in Python and readiness to engage with AI
- Experience in data structuring and logic implementation
- Strong Programming skills
- Excellent problem-solving abilities
- Ability to work effectively with a cross-functional team
- Master's degree in Computer Science, Information Technology, or related field
- Experience in circualr economy, regulatory compliance or recycling applications is a plus
PackIntelX offers an all-in-one digital platform that empowers companies to prepare for EU Packaging regulations (PPWR), Recyclability, Recycled Content integration, and Packaging conformity. We build a bridge between regulations and operations, ensuring companies are fully compliant and well-prepared for current and future packaging requirements.
Role Description
This is a full-time remote-role for a Back End Developer. The responsibilities mainly focus on structured software development (Python) and AI-integration. This role involves collaborating with front-end developers and programming to ensure seamless integration and functionality of various systems.
Qualifications
- Proficiency in Back-End Development
- Skilled in Python and readiness to engage with AI
- Experience in data structuring and logic implementation
- Strong Programming skills
- Excellent problem-solving abilities
- Ability to work effectively with a cross-functional team
- Master's degree in Computer Science, Information Technology, or related field
- Experience in circualr economy, regulatory compliance or recycling applications is a plus
This advertiser has chosen not to accept applicants from your region.
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