Top Backend Jobs in Kolkata

Design, build, and operate AEM (Cloud Service) solutions: develop Sling/HTL components, implement dispatcher and caching strategies, model content/JCR structures, enable headless REST APIs, and deliver Java backend services (OSGi, servlets) with logging and automated tests.

The Senior Back-End Developer builds and maintains server-side operations for cloud solutions, collaborating with teams to deliver software, support users, and document features.

Seeking a skilled Backend Developer to build efficient systems using ExpressJS and manage PostgreSQL databases. Responsibilities include API development, database optimization, and team collaboration.

Design, build, and maintain scalable backend applications and APIs using Node.js, TypeScript, and Postgres. Architect systems for high performance and scalability, implement third-party integrations, develop internal tools for fulfillment and ML initiatives, collaborate cross-functionally, and ensure security, documentation, and testing while using cloud, containerization, and AI coding tools.

Design, develop, test, and maintain scalable server-side systems using Java Spring Boot. Diagnose performance and scalability issues, produce documentation, implement automated tests and CI/CD, collaborate with cross-functional agile teams, perform code reviews, mentor peers, and translate business requirements into technical solutions.

The Staff Backend Engineer - Platform will design and implement APIs and core components while managing scalability, automations, and payment systems, contributing to the efficient operation of SigNoz's observability platform.

The Sr Backend Engineer will design and implement APIs, services, and core backend components in Go, focusing on billing tech, automations, and performance at petabyte-scale while ensuring high usability in a remote-first culture.

Design, build, and scale backend systems for the Made Card platform, focusing on system design, database optimization, API delivery, and performance reliability while mentoring junior engineers.

Design, develop, and maintain scalable, high-performance .NET Core 8+ back-end applications and microservices. Build secure RESTful APIs, implement async patterns, EF Core data access, authentication/authorization, message-driven integrations (RabbitMQ), and CI/CD deployments. Ensure code quality via unit tests, TDD/BDD, logging, and code reviews. Troubleshoot production issues, participate in architecture discussions, collaborate with cross-functional teams, and produce technical documentation.

Design, build, and maintain scalable Node.js backend services and RESTful APIs. Participate in architecture, code reviews, database schema optimization (Postgres/MongoDB), integrate microservices and third-party APIs, ensure security/performance, write tests, troubleshoot production incidents, and collaborate with cross-functional teams.

Design, build, and maintain scalable backend APIs, libraries, and services for an API-first crypto platform. Own features from inception to deployment, collaborate with cross-functional teams, ensure performance and reliability, write tests, participate in code reviews, document APIs, and mentor peers. Focus on API design, microservices, database integration, and blockchain/cryptocurrency domain considerations.

Design, implement, and maintain scalable backend services using Golang or Node.js on AWS. Optimize SQL databases, resolve concurrency and performance issues, contribute to CI/CD, collaborate with frontend teams, and continuously improve system reliability and scalability.

Lead backend engineering efforts building highly concurrent, low-latency systems using Ruby on Rails and Go. Own architecture, performance tuning (PostgreSQL, Redis), APIs (REST/gRPC), observability and CI/CD. Mentor engineers, drive design docs/RFCs, resolve system bottlenecks, and balance short-term delivery with long-term architectural stability.

As a Staff Software Engineer (Backend), you will build and enhance features, ensure service ownership, and mentor engineers while managing cloud services and adhering to software development best practices.

Maintain and improve backend services for a SaaS platform using Node.js/TypeScript. Ensure API uptime, scalability, and performance; optimize MongoDB and caching; implement Redis-based job queues; manage AWS infrastructure; enforce security and compliance; maintain API docs and tests; and troubleshoot production incidents.

As a Senior Backend Engineer, you will design and maintain scalable backend services and APIs, drive architecture decisions, collaborate across teams, and mentor others while ensuring code quality and system health.

Develop, test, and deploy Java/Scala microservices for supply-chain-finance modules. Build Spark batch/streaming jobs, design Kafka event pipelines, integrate bank/ERP systems via Talend/REST, and produce Jasper reports. Maintain Kubernetes deployments, ensure ≥80% unit-test coverage, troubleshoot via Elasticsearch and Prometheus/Grafana.

Work on backend engineering tasks: design and implement scalable REST APIs and database schemas, write clean Node.js code, build tests and caching, collaborate in architecture and code reviews, document changes, and provide technical support across teams within a fintech-focused product.

Design, develop, and maintain scalable backend services and REST APIs using Java and Spring Boot. Own end-to-end implementations, troubleshoot production issues, optimize databases and performance, enforce security and testing best practices, collaborate with cross-functional teams, and drive system reliability and scalability.

Looking for Front-to-Back end developers for a hybrid cloud SaaS platform, primarily using NodeJs, ReactJs, and REST API development in a Linux environment.

As a Backend Developer, you will design and run applications through the software development lifecycle, requiring strong coding and problem-solving skills. Must have expertise in Golang, Python or Node JS, and experience in cloud deployments and RDBMS.

Lead backend architecture and build scalable, high-concurrency services and APIs (Node.js) powering web and mobile. Own components end-to-end, manage CI/CD and infrastructure (IaC, containers, cloud), improve reliability, and collaborate with PM/design to deliver core features like live interactions and checkout.

The role involves back-end development using .NET Core and SQL, contributing to Jibble 2.0 API integrations, and collaborating with product and design teams.

The Backend Software Engineer will develop and maintain backend systems for data processing related to coffee farming, utilizing Python and PostgreSQL. Responsibilities include feature development, problem-solving, and adapting systems to regulatory changes while ensuring system resilience.

Develop, test, and deploy Java/Scala microservices for supply chain finance modules. Build Spark batch/streaming jobs and Kafka event pipelines. Integrate payment gateways and ERPs, create Jasper report templates, maintain Kubernetes manifests, ensure ≥80% unit test coverage, and troubleshoot production using Elasticsearch and Prometheus/Grafana.