3,587 Backend Developer jobs in India

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This is a full-time remote role for a Java Backend Developer. The Java Backend Developer will be responsible for designing, developing, and maintaining the backend systems of our platform. Day-to-day tasks include writing clean, efficient code, implementing microservices, utilizing the Spring Framework, and ensuring seamless integration with front-end systems. The role also involves troubleshooting and debugging backend applications to optimize performance and enhance user experience.

• Experience in Software Development and Programming
• Proficiency in Java and the Spring Framework
• Knowledge of Microservices architecture
• Strong problem-solving skills and attention to detail
• Excellent communication skills
• Ability to work independently and remotely
• Bachelor's degree in Computer Science, Engineering, or a related field
• Experience with cloud computing platforms (e.g., AWS, Azure) is a plus

Position : SDE 3 - Backend Developer

Location: Bengaluru (On-Site)

Experience : 4 - 7 Years

About Us

Unacademy is India’s largest learning platform, dedicated to democratizing education for millions of learners across the country. We bring together top educators, high-quality content, and innovative technology to deliver engaging and effective learning experiences. Our mission is to redefine how India learns — through innovation, excellence, and impact at scale.

About the Role

We are looking for an experienced Backend Developer (SDE III) to join our engineering team. The ideal candidate should have deep technical expertise in Golang or Python and a proven ability to build and scale large backend systems. This role offers the opportunity to own end-to-end backend architecture, contribute to product innovation, and mentor junior engineers within a fast-paced, impact-driven environment.

Key Responsibilities

• Design, develop, and maintain robust backend systems using Golang or Python.
• Build scalable, secure, and high-performing APIs and microservices for core Unacademy products.
• Collaborate with cross-functional teams — Product, Frontend, DevOps — to deliver seamless experiences.
• Ensure system reliability, scalability, and performance optimization.
• Conduct code reviews and enforce engineering best practices across the team.
• Troubleshoot production issues, identify bottlenecks, and drive effective solutions.
• Take ownership of architecture decisions and drive continuous improvement in system design.
• Mentor and guide junior engineers to improve technical depth and delivery quality.

Required Skills & Qualifications

• 4–7 years of professional experience in backend development.
• Proficiency in Golang or Python (mandatory) — with experience in building large-scale applications.
• Strong knowledge of microservices architecture, RESTful APIs, and distributed systems.
• Experience with PostgreSQL, MongoDB, or other relational/NoSQL databases.
• Familiarity with Docker, Kubernetes, and CI/CD tools.
• Excellent understanding of data structures, algorithms, and software design principles.
• Strong analytical, debugging, and problem-solving skills.

Preferred Skills

• Experience with AWS, GCP, or other cloud platforms.
• Familiarity with Kafka, RabbitMQ, or other message brokers.
• Exposure to fast-paced product or startup environments.

Why Join Unacademy

• Work on products that impact millions of learners across India.
• Collaborate with top engineering talent in a dynamic and innovative environment.
• Ownership, autonomy, and opportunities for leadership growth.
• A mission-driven culture that values learning, impact, and excellence.

Senior Backend Engineer - Payments

Location: Bangalore, KA

Employment type: Full-time

We’re building the system of record for how money moves through our platform: a double-entry, auditable payment ledger that powers charges, refunds, payouts, fees, and reconciliations. If you love correctness, clean data models, and high-throughput systems, you’ll own one of the most critical pieces of our product.

What you’ll do

• Design & build the ledger : Append-only journal + accounts with double- entry guarantees; immutable records with corrections via compensating entries; enforce invariants (debits = credits) at the schema and application layers.

• Get consistency right : Choose isolation levels, implement idempotency, and design APIs that are safe under retries and partial failures.

• Own reconciliation : Build daily/continuous reconciliation pipelines against payment processors and bank statements; surface diffs, exceptions, and workflows to resolve breaks.

• Model money flows : Support holds, captures, refunds, chargebacks, fees, partner revenue share, and multi-currency/FX with correct rounding and rate provenance.

• Integrate processors : Ship robust integrations with webhooks, signature verification, event ordering, and replay handling.

• Observability & audit : Comprehensive audit logs, traceability from external events → ledger entries → financial reporting; metrics, SLOs, and alerting for breaks or stuck money.

What makes you a great fit

Must-haves

• 5–7 years building backend systems in Node.js, NestJS, JavaScript, TypeScript.

• Deep experience with relational databases (PostgreSQL/MySQL), transactions, schema design, migrations, and query performance.

• Proven track record designing idempotent APIs, background jobs, and event processing at scale.

• Solid grasp of accounting basics (double-entry, journals vs. ledgers, trial balance) or strong interest to learn quickly.• Strong testing discipline: property tests, fixtures, deterministic replay; comfort with production-grade observability.

• Clear communication, product sense, and ownership from design to post-launch ops.

Nice-to-haves

• Built payments/fintech/marketplace systems: payouts, split payments, escrow, invoices or wallet/accounting.

• Experience with event sourcing, CDC, Kafka/PubSub, or stream processing.

• Multi-currency/FX flows and rounding modes; localized taxes/fees.

• Hands-on with Stripe/Adyen/Braintree/Razorpay/PayU, bank files (MT940/BAI2), or virtual accounts.

• Familiarity with compliance/audit (SOX controls, PCI DSS scope reduction) and data retention policies.

• Kubernetes/cloud infra (GCP/AWS) and secrets management.

Backend Developer

Exp : 8+ years

Location : Bangalore

Mode: Work from Office

Np: Not more than 15 days

Please share profiles with 8+ years’ experience only.

Role Overview

We’re seeking an experienced Backend Developer to join our engineering team. In this role, you’ll design, develop, and maintain robust, scalable, and performant backend services using FastAPI, SQLAlchemy, and PostgreSQL. You’ll collaborate with cross-functional teams to implement business logic, API endpoints, and database solutions while adhering to our comprehensive development standards.

Responsibilities

• Design and develop RESTful APIs using FastAPI following our established API standards and best practices

• Implement robust data models and database interactions using SQLAlchemy and PostgreSQL

• Develop and maintain core business logic in service and repository layers

• Write comprehensive unit, integration, and end-to-end tests for all code

• Create clear, detailed documentation for code, APIs, and architectural decisions

• Collaborate with frontend developers to define API contracts and integration points

• Implement and maintain high availability patterns and performance optimizations

• Participate in code reviews, providing constructive feedback to peers

• Troubleshoot and resolve complex technical issues across the application stack

• Contribute to architectural decisions and help evolve our technology standards

Required Skills and Experience

• 7+ years of professional experience in backend development

• Strong proficiency in Python (3.9+) with solid understanding of type hints, async/await, and modern Python features

• 2+ years of production experience with FastAPI hosted on Azure Cloud.

• Proficiency with relational databases, particularly PostgreSQL

• Working knowledge of SQLAlchemy

• Experience implementing RESTful APIs and understanding of API design principles

• Strong understanding of software testing approaches (unit, integration, end-to-end)

• Familiarity with containerization (Docker) and container orchestration

• Experience with Git version control and CI/CD pipelines

• Knowledge of secure coding practices and common security vulnerabilities

Preferred Qualifications

• Experience with Pydantic for data validation and schema definition

• Familiarity with PostgreSQL advanced features (JSONB, full-text search, etc.)

• Experience with asynchronous programming in Python

• Experience with Uvicorn, an ASGI web server, for Python.

• Understanding of infrastructure as code (Terraform, AWS CloudFormation)

• Experience with Kubernetes in production environments

• Understanding of event-driven architectures and message brokers

• Exposure to microservices architecture patterns

• Experience with monitoring and observability tools

• Contributions to open-source projects

Technical Competencies

Core Python

• Python 3.9+ features and language constructs

• Type hints and static type checking with mypy

• Error handling and exception management

• Asynchronous programming with asyncio

• Documentation using Google-style docstrings

Web Frameworks and APIs

• FastAPI application development and organization

• API design and RESTful principles

• Request validation and response formatting

• Authentication and authorization implementation

• Performance optimization techniques

Database

• PostgreSQL schema design and optimization

• SQLAlchemy ORM and Core

• Query optimization and performance tuning

• Transaction management

• Database migrations with Alembic

Testing

• Test-driven development practices

• Unit testing with pytest

• Integration testing for APIs and databases

• Mocking and fixtures

• Code coverage analysis

DevOps and Infrastructure

We are seeking a skilled and motivated Node.js / Golang Backend Developer to join our growing team. The ideal candidate will have strong experience with server-side development, API development, and scalable backend architectures.

Company Description

LABMAN SCIENTIFIC INSTRUMENTS PVT. LTD. is a pioneer in the lab and scientific instruments field with around 15 years of experience.

Role Description

Software developer required for inhouse software development. This is a full-time, work-in-office position at LABMAN SCIENTIFIC INSTRUMENTS PVT. LTD. at Kilpauk, Chennai. The applicant will be responsible for backend development.

Responsibilities

• Design, develop, and maintain backend services using Node.js / Golang.

• Implement RESTful APIs and help in integration with front-end applications.

• Optimize server performance, scalability, and security.

• Work closely with front-end developers, product managers, and mobile developers.

• Manage databases and ensure data consistency across services.

• Debug, troubleshoot, and resolve production issues.

Requirements

• Proven experience in Node.js / Golang backend development.

• Proficiency with frameworks such as Express.js.

• Strong knowledge of JavaScript, TypeScript, and asynchronous programming.

• Experience with databases (MongoDB).

• Familiarity with cloud platforms (Azure, GCP) and containerization (Docker) is a plus.

• Good understanding of API design, security best practices, and microservices architecture.

• Ability to write clean, maintainable, and efficient code.

Qualifications

• Bachelor's degree in Computer Science, Engineering, or related field (or equivalent experience).

• 1-2 years of hands-on experience in backend development.

• Strong problem-solving skills and attention to detail.

If you’re passionate about backend development and thrive in a fast-paced environment, we’d love to hear from you.