3,248 Crypto & Blockchain jobs in India

Company Description

Acentria Technologies (P) Ltd. is a well-established software development organization with 11 years of experience and a global clientele. The company offers a wide range of services including software development for both web and desktop, mobile app design and development, games development, and server support. Our organization is known for its professionally equipped and experienced staff, which ensures client satisfaction and timely project delivery. We pride ourselves on improved quality products and overall productivity enhancement for our clients.

We are seeking a highly skilled and motivated Blockchain Developer to join our team. The ideal candidate will have hands-on experience in designing, developing, and deploying Layer 1 and Layer 2 blockchains , building smart contracts , and creating blockchain-based solutions for real-world use cases. You will work closely with our product, engineering, and research teams to architect secure, scalable, and innovative blockchain systems.

• Design, develop, and implement Layer 1 blockchain protocols and consensus mechanisms.
• Build and optimize Layer 2 scaling solutions (e.g., rollups, sidechains, state channels).
• Develop, test, and deploy smart contracts across different blockchain platforms (e.g., Ethereum, Solana, Polygon, etc.).
• Create blockchain-based applications and solutions aligned with business needs.
• Ensure security, scalability, and performance of blockchain infrastructure.
• Collaborate with cross-functional teams to integrate blockchain solutions with existing systems.
• Stay updated with emerging blockchain technologies, tools, and industry trends.

• Proven experience in blockchain protocol development (Layer 1 and/or Layer 2).
• Strong knowledge of cryptography, consensus algorithms, and distributed systems .
• Proficiency in programming languages such as Solidity, Rust, Go, or C++ .
• Hands-on experience with smart contract development and deployment .
• Familiarity with tools like Hardhat, Truffle, Remix, Ganache, Web3.js, or Ethers.js .
• Experience with DeFi, NFTs, token standards (ERC-20, ERC-721, ERC-1155) is a plus.
• Solid understanding of security best practices in blockchain development.
• Strong problem-solving and analytical skills.
• Bachelor’s or Master’s degree in Computer Science, Engineering, or related field (or equivalent experience).

• Experience contributing to open-source blockchain projects .
• Understanding of zero-knowledge proofs, cryptographic primitives, and cross-chain protocols .
• Previous work on production-grade blockchain solutions .

About the Job

We are looking for a Lead Engineer with 3+ years of hands-on experience in Solana blockchain development. The role involves designing, building, and optimising high-performance dApps, smart contracts, and on-chain programs on Solana. You will lead technical decision-making, mentor junior engineers, and work closely with product teams to deliver scalable blockchain solutions.

Core Responsibilities

• Design, develop, and maintain high-quality on-chain and off-chain software systems
• Write efficient, maintainable, and testable code following best practices
• Conduct code reviews to ensure code quality and adherence to coding standards
• Lead technical discussions, provide mentorship, and set the development roadmap for blockchain projects.
• Document technical designs, APIs and user guides in a clear and developer-friendly manner
• Troubleshoot and debug issues across on-chain and off-chain components.
• Collaborate with stakeholders to ensure successful delivery of projects.

Required Skills

• Proficient in Rust language (must have good development experience in Rust and its ecosystem)
• Minimum 3+ years of experience in Rust development, with at least 2+ years of experience in Solana blockchain
• Ability to guide the development team in writing performant and optimized code in Rust
• Hands-on experience building fullstack Solana Web3 applications, from smart contracts to frontend dApps.
• Proficiency in writing, testing, and deploying Solana smart contracts.
• Strong understanding of various Token Standards (fungible, non-fungible, etc.)
• Experience with DeFi protocols: DEX aggregators, AMMs, order books, and liquidity management.
• R&D skills with the ability to prototype quickly and deliver under tight deadlines.
• Bachelor's or Master's degree in Computer Science, Information Technology, or related field
• Strong communication skills, with the ability to explain complex blockchain concepts to both technical and non-technical stakeholders.

Qualifications

• B.Tech/M.Tech, CS/IT or related field
• 2+yrs of relevant exp. with Solana blockchain
• Excellent Communication skills

Location: Hyderabad

Experience: 2+ years

Type: Full-time

Role Overview

As a Blockchain Backend Engineer, you’ll be responsible for designing, building, and maintaining backend services that interact with multiple blockchains (Solana + EVMs). You’ll work with Python/FastAPI for APIs, Rust/Node for blockchain logic, and AWS for deployment and scaling.

What You’ll Do

• Build and maintain backend services using Python + FastAPI.
• Write blockchain-specific modules in Rust (Solana) and Node/Python (EVM).
• Develop and integrate smart contracts across Solana and EVM chains.
• Work with Web3 libraries (ethers.js, web3.py, anchor, etc.) to handle chain interactions.
• Architect scalable services deployed on AWS.
• Collaborate with the product team to design APIs for frontend and mobile apps.
• Optimize performance, reliability, and cost efficiency of infrastructure.

What We’re Looking For

• Strong backend engineering experience with Python (FastAPI preferred).
• Solid understanding of Solana (Rust/Anchor) and EVM (Solidity/Node/Web3) ecosystems.
• Experience writing and deploying smart contracts.
• Proficiency with AWS (Lambda, EC2, S3, etc.) and backend infra management.
• Familiarity with event-driven architecture and WebSocket/real-time APIs.
• Problem-solving mindset, capable of working independently in a fast-paced startup.

Nice to Have

• Knowledge of security best practices for blockchain systems.
• Previous experience in identity, wallets, or proof-of-personhood solutions.
• Contributions to open-source blockchain projects.

Perks

• Work directly with the founding team building Mercle.
• Solve real technical challenges at scale.
• Be part of a project shaping the future of AI internet.

About Us : We are building robust infrastructure within the Ethereum ecosystem with a focus on Proof of Stake (PoS) and secure private network deployments. We’re looking for a highly motivated self-starter who can work independently and grow into a senior blockchain engineer with us.

What We Need : We are looking for a developer who has core skills in C, C++, Python, GCP, and AWS infrastructure, and who is eager to learn and grow in the blockchain space. We will train the candidate in the nuances of Ethereum node operations and Proof of Stake consensus mechanisms, as well as specific blockchain security fundamentals and staking solutions.

• Key Skills You Will Be Trained InUnderstanding how various components of an Ethereum client work, including networking, synchronization, RPC, and consensus layers.
• Working with Ethereum node infrastructure and Proof of Stake consensus.
• Blockchain security fundamentals, including key management, access control, and DoS protection.
• Deploying and maintaining blockchain environments in cloud infrastructure (AWS, GCP).
• Working with containerization technologies to scale and manage blockchain networks.
• What We ExpectCore Skills: Proficiency in C, C++, Python, GCP, and AWS infrastructure.
• Highly Motivated Self-Starter: Ability to take initiative and work independently, with minimal supervision.
• Problem Solver: Willingness to troubleshoot and resolve issues related to Ethereum nodes and infrastructure.
• Growth Mindset: Eagerness to learn new technologies and protocols while contributing effectively to our infrastructure goals.

Responsibilities

• Configure, manage, and maintain Ethereum nodes (e.g., Besu, Geth, Lighthouse, Prysm) across public and private networks.
• Design, deploy, and monitor secure PoS staking infrastructure.
• Troubleshoot networking, consensus, and node operation issues.
• Support internal development teams by providing a reliable blockchain backend.
• Ensure security best practices are followed in node operations and deployment.
• Assist in automating infrastructure using modern DevOps tooling and scripting.
• Required Qualifications1-2+ years of experience in a blockchain infrastructure or Ethereum-focused role.
• Proven understanding of PoS consensus and Ethereum node operations.
• Experience with private Ethereum networks (e.g., configuring genesis files, bootnodes, enode management).
• Proficiency in Linux environments, scripting (Bash/Python), and using cloud platforms (AWS, GCP).
• Familiarity with networking concepts, TLS, firewalls, VPNs, etc.
• Strong understanding of blockchain security principles.
• Nice to HaveExperience with Hyperledger Besu or other enterprise Ethereum clients.
• Familiarity with Kubernetes, Docker, or infrastructure-as-code tools (Terraform, Helm).
• Prior work on staking infrastructure or validator management.

Important : We are looking for candidates who are ready to contribute from day one and are motivated to develop their skills further. This is not an experimental role, and we are committed to training and growing the right person into a senior blockchain engineer. If you have a strong foundation in C, C++, Python, GCP, and AWS, and are passionate about blockchain technology, we would love to hear from you.

Your potential, unleashed.

India’s impact on the global economy has increased at an exponential rate and Deloitte presents an opportunity to unleash and realise your potential amongst cutting edge leaders, and organisations shaping the future of the region, and indeed, the world beyond.

At Deloitte, your whole self to work, every day. Combine that with our drive to propel with purpose and you have the perfect playground to collaborate, innovate, grow, and make an impact that matters.

The team

As a member of the Operations Transformations team you will embark on an exciting and fulfilling journey with a group of intelligent and innovative globally aware individuals.

We work in conjuncture with various institutions solving key business problems across a broad-spectrum roles and functions, all set against the backdrop of constant industry change.

Your work profile

Job Title: Blockchain Developer

Experience: 5+ Years

Education: BE/B.Tech/MCA/M.Tech

Govt experience is required

Responsibilities:

• Design and develop scalable, secure, and high-performance solutions on private / permissioned blockchain platforms such as Private Ethereum, Quorum, Hyperledger Fabric
• Develop and maintain RESTful APIs, microservices, and backend components using open source technology stack such as NodeJS.
• Ability to integrate blockchain nodes with application layers and ensure seamless data flow and transaction integrity.
• Manage the end-to-end lifecycle of the blockchain application, including setup, smart contract development, testing, deployment, and monitoring.
• Implement logging, alerting, and monitoring systems to ensure solution health and availability.
• Collaborate with architects, DevOps, front-end developers, and security teams to deliver robust and enterprise-grade applications.
• Write clean, maintainable, and well-documented code following best practices and standards.
• Stay current with emerging trends in blockchain and open-source ecosystems.

Must Have Experience

• 5+ years of experience in backend development using open-source technologies
• Experience in developing and deploying smart contracts/chaincode.
• Proficiency in working with Docker, container orchestration (e.g., Kubernetes), and CI/CD pipelines.
• Good understanding of blockchain consensus mechanisms, identity management, and network governance.
• Experience with RESTful API design, middleware integration, and message queues (e.g., Kafka, RabbitMQ).
• Familiarity with database systems (NoSQL and SQL), especially for off-chain data storage.
• Exposure to monitoring tools (e.g., Prometheus, Grafana, ELK Stack) for application and node health
• Strong problem-solving, analytical, and communication skills

Good to Have Experience

• Knowledge of encryption, digital signatures, and zero-knowledge proofs.
• Experience with DevOps tools, cloud infrastructure (AWS, Azure, GCP) services, and security practices.
• Experience of working in regulated environments (e.g. government tech)

How you’ll grow

Connect for impact

Our exceptional team of professionals across the globe are solving some of the world’s most complex business problems, as well as directly supporting our communities, the planet, and each other. Know more in our Global Impact Report and our India Impact Report .

Empower to lead

You can be a leader irrespective of your career level. Our colleagues are characterised by their ability to inspire, support, and provide opportunities for people to deliver their best and grow both as professionals and human beings. Know more about Deloitte and our One Young World partnership.

Inclusion for all

At Deloitte, people are valued and respected for who they are and are trusted to add value to their clients, teams and communities in a way that reflects their own unique capabilities. Know more about everyday steps that you can take to be more inclusive. At Deloitte, we believe in the unique skills, attitude and potential each and every one of us brings to the table to make an impact that matters.

Drive your career

At Deloitte, you are encouraged to take ownership of your career. We recognise there is no one size fits all career path, and global, cross-business mobility and up / re-skilling are all within the range of possibilities to shape a unique and fulfilling career. Know more about Life at Deloitte.

Everyone’s welcome… entrust your happiness to us

Our workspaces and initiatives are geared towards your 360-degree happiness. This includes specific needs you may have in terms of accessibility, flexibility, safety and security, and caregiving. Here’s a glimpse of things that are in store for you.

Interview tips

We want job seekers exploring opportunities at Deloitte to feel prepared, confident and comfortable. To help you with your interview, we suggest that you do your research, know some background about the organisation and the business area you’re applying to. Check out recruiting tips from Deloitte professionals.

We’re building a lean, high-performance trading desk and are seeking a Senior Crypto Trader with ~6 years of experience to take ownership of live strategies and scale into a Head of Trading role.

What You’ll Do

• Run your own crypto trading strategy from day one
• Full ownership from idea to execution, including risk and performance tracking
• Optimize and operate ultra-low-latency (tick-to-trade, single-digit µs) strategies
• Scale P&L and build infrastructure around your trading edge
• Help shape the future structure and direction of the desk

Requirements

• Currently live with a profitable crypto strategy (or recently)
• Deep understanding of market microstructure, HFT, and execution risk
• Strong Python/C++ skills for rapid development/testing (plus)
• Strategic thinker with leadership potential

Compensation & Perks

• Competitive base + strong P&L share
• Fully remote-friendly (outside US due to regulatory structure)

Preferred locations: Europe / Dubai / Singapore /Remote

If you’re ready to run your own strategies with full autonomy and a clear path to Head of Trading, apply now or DM for a confidential discussion

We are seeking a skilled and detail-oriented Blockchain Developer to join the Web3 team for "a Stealth Prop-tech startup," a groundbreaking digital real estate platform in Dubai. This is a complex initiative to build a comprehensive ecosystem integrating long-term sales, short-term stays, and advanced technologies including AI/ML, data analytics, Web3/blockchain, and conversational AI. You will be responsible for building the critical bridge between our core platform and the decentralized world.

This is a key technical role in a high-impact project, offering the chance to implement pioneering PropTech solutions involving asset tokenization and cryptocurrency payments.

As the Blockchain Integration Specialist, you will be responsible for the seamless integration of our traditional backend systems with various blockchain networks and third-party Web3 services. You will focus on the practical implementation of connecting our platform to cryptocurrency payment gateways, real estate tokenization platforms, and our own smart contracts. You will work closely with the Lead Blockchain Architect, smart contract engineers, and the core backend team to ensure data flows securely and efficiently between our on-chain and off-chain environments.

• Develop and maintain the backend services and APIs required to connect the Property Search platform with blockchain networks.
• Lead the technical integration with third-party cryptocurrency payment gateways, ensuring secure and reliable transaction processing.
• Implement the integration with real estate tokenization platforms, managing the flow of data related to property tokens and ownership.
• Build the necessary API endpoints for the frontend applications to interact with blockchain functionalities (e.g., fetching token balances, initiating transactions).
• Work with backend developers to ensure data consistency between the on-chain state and the platform's off-chain database.
• Implement event listeners to monitor smart contract events and trigger corresponding actions within the core application.
• Collaborate with the security team to ensure all integration points are secure and protected against threats.
• Troubleshoot and resolve issues related to blockchain connectivity and third-party API integrations.

• 3-5+ years of experience in backend software development , with at least 2+ years focused on integrating systems with blockchain technology .
• A Bachelor's degree in Computer Science, Engineering, or a related technical field.
• Strong proficiency in a modern backend language such as Node.js, Python, or Go.
• Hands-on experience interacting with blockchain networks from a backend service using libraries like Ethers.js, Web3.js, or similar.
• Proven experience integrating complex third-party REST APIs, particularly for financial or payment systems.
• A solid understanding of blockchain fundamentals, smart contracts, and wallet interactions.
• Experience with relational databases (e.g., PostgreSQL) and API design.

• Direct experience integrating with specific cryptocurrency payment gateways or asset tokenization platforms .
• Experience in the PropTech (Property Technology) or FinTech sectors.
• Familiarity with the regulatory landscape in the UAE, particularly the VARA framework for virtual assets.
• Experience working in a cloud environment (AWS, Google Cloud, or Azure).
• Knowledge of message queues (e.g., RabbitMQ, Kafka) for handling blockchain events.
• Experience with secure key management and custody solutions.

We’re looking for a highly experienced Backend + Smart Contract Developer with a strong grasp of blockchain architecture and mid-level AWS expertise to join our innovative Web3 team. This is your chance to design and build cutting-edge decentralized systems that scale globally.

• Smart Contract Development:
• Architect, develop, and deploy secure smart contracts (Solidity / Rust) for Ethereum, EVM-compatible chains, and other L1/L2 networks.
• Conduct in-depth testing, auditing, and gas optimization.
• Backend Engineering & Blockchain Architecture:
• Design high-performance backend systems and scalable blockchain architectures.
• Build and maintain APIs, node integrations, and indexing services (e.g., The Graph, Alchemy, Infura).
• Cloud & Infrastructure (AWS):
• Deploy and manage backend services using AWS (EC2, Lambda, API Gateway, S3, RDS) and cloud best practices.
• Implement CI/CD pipelines, containerization (Docker, Kubernetes), and monitoring solutions.
• Security & Optimization:
• Ensure system security, resilience, and gas optimization.
• Apply best practices for mitigating vulnerabilities (reentrancy, overflow, etc.).
• Collaboration & Ownership:
• Work closely with frontend, DevOps, and product teams to deliver robust end-to-end blockchain products.
• Take complete ownership from architecture to deployment.

• 4+ years in backend development and 2+ years in smart contract development.
• Deep understanding of Ethereum, EVM architecture, L2 scaling solutions, and DeFi/NFT standards (ERC20, ERC721, ERC1155).
• Proficiency in Solidity, JavaScript/TypeScript, Node.js, and at least one systems language (Go, Rust, or C++).
• Strong experience in blockchain solution architecture for scalable dApps.
• Mid-level experience with AWS (EC2, Lambda, API Gateway, S3, RDS).
• Familiarity with common smart contract vulnerabilities and mitigation strategies.
• Proven ability to deliver secure, scalable, production-ready blockchain systems.

• Experience with Hardhat, Foundry, Truffle, Web3.js / Ethers.js.
• AWS DevOps experience for blockchain-based apps, including CI/CD pipelines and container orchestration.
• Cross-chain development and interoperability protocol expertise.
• Knowledge of zero-knowledge proofs (ZK-SNARKs/STARKs).
• Experience with audited DeFi protocols.
• Familiarity with L2 rollups, bridges, and advanced blockchain scaling techniques.
• Exposure to NFTs, DeFi mechanics, and modern blockchain infrastructure.

Location: Remote / Hybrid (India preferred)

Type: Full-time