Top Software Engineer Jobs in Kolkata

Join ROOST's Coop project to design, implement, test, document, and release trust-and-safety features. Work across backend APIs, GraphQL, databases, and UI to improve reviewer workflows, detection integrations, and reporting. Lead code quality, security practices, community contribution reviews, and stakeholder coordination while engaging with users and the open source community.

Join the ROOST Osprey team to design, implement, test, and maintain a high-performance, real-time safety rules engine. Work includes building data/event pipelines, scaling and containerizing services, integrating with Kafka and gRPC, reviewing community contributions, maintaining code quality and security, and engaging with users and open source contributors to prioritize and deliver features.

Design, build, and maintain scalable backend services and APIs; optimize performance and data pipelines; architect and manage AWS infrastructure; document systems; ensure code quality through reviews; deploy containerized microservices and implement infrastructure-as-code and monitoring/alerting for production systems.

Design, implement, and maintain Java-based applications using Spring/Spring Boot and microservices. Build database schemas, integrate with MySQL, Redis, and Kafka, write reusable libraries and unit tests, use CI/CD and version control (Git), debug issues, produce design documentation, and collaborate within teams to align software with business goals.

Design, build, and maintain PHP applications and APIs, own features end-to-end, refactor legacy systems, write unit tests, perform code reviews, create documentation, and improve engineering practices in a remote team.

Design, build, and maintain high-quality PHP applications and APIs. Own features end-to-end, refactor legacy systems, write unit tests, perform code reviews, produce documentation, and continuously improve system performance and development practices while collaborating in a remote engineering team.

The Software Engineer will design, improve, and integrate systems for private cloud infrastructure while emphasizing performance and fault tolerance. Responsibilities include leading projects, collaborating with teams, and fostering a learning environment.

Build and ship growth-focused changes across mobile, web, and backend. Design experiments to improve onboarding, activation, monetization, and retention. Own implementation, testing, release, instrumentation, and production monitoring; improve experimentation systems and subscription/payment journeys.

Design and implement the core front-end web application including onboarding, authentication, and quote/bind/pay flows with complex dynamic forms. Build reusable UI libraries and components, drive UI/UX best practices, introduce AI-assisted tooling, perform code reviews, improve system quality and scalability, and collaborate cross-functionally across the stack.

Backend-focused Software Engineer working on architecture, database design, integrations, new features, and maintenance. Participate in code reviews, troubleshoot production, balance technical debt vs features, and use AI agents to aid development.

Backend-focused Software Engineer I contributing to design, architecture, and development of features, integrations, and maintenance. Responsible for database design, optimized SQL/stored procedures, API design (REST/JAX-RS), code reviews, troubleshooting production, balancing technical debt, and using AI agents to support development. Works collaboratively on a remote global team.

Lead design and delivery of scalable, secure services and APIs for high-throughput AdTech systems. Collaborate with data scientists and product teams to integrate AI/ML, implement CI/CD, mentor engineers, and drive platform improvements for performance, reliability, and automation.

Design, develop, test, and maintain scalable software solutions for a high-volume WMS platform. Troubleshoot production issues, perform root-cause analysis, implement CI/CD and telemetry, lead small engineering groups, mentor engineers, and collaborate with product and UX teams to deliver high-quality, maintainable code and APIs.

Lead architecture and delivery of cloud-native, distributed AdTech platform capabilities. Drive technical execution across teams, integrate AI/ML, ensure high availability, oversee full SDLC, mentor engineers, and collaborate with stakeholders to align engineering with business goals.

Develop, implement, and support enterprise software using Java/Spring Boot and Angular. Collaborate with product and agile teams to design, code, test, review and deploy microservices and APIs, provide production support, document artifacts, and ensure scalability, performance and adherence to architecture and best practices.

Design, build, and configure applications and data workflows to meet business requirements. Act as an SME leading a team, making technical decisions, mentoring juniors, troubleshooting and optimizing ETL pipelines, and collaborating cross-functionally to deliver scalable data integration solutions.

Maintain and enhance a VB.NET WinForms billing desktop application, write and optimize T-SQL/stored procedures and SQL Server Agent jobs, expand automated test coverage, participate in code reviews, and help plan migration to a web-based architecture (ASP.NET Core/Blazor) while collaborating with stakeholders and following coding standards.

Lead end-to-end design, build, and production operation of scalable distributed systems. Debug production issues, improve reliability and performance, conduct code reviews, mentor junior engineers, and collaborate cross-functionally to deliver high-quality software at scale with an AI-forward mindset.

As a Frontend Engineer, you'll craft user interfaces, write engineering requirement documents, build test suites, and integrate analytics for product success.

As a Backend Engineer, you will design scalable APIs, create Engineering Requirement Documents, and build test suites for product analytics and performance.

Lead architecture and delivery of Control Center platform capabilities, evolving it into an AI-agent-ready operations platform. Design MCP registries, AI orchestration, access automation, guardrails, and HITL workflows. Mentor engineers, drive cross-team roadmaps, own backend services reliability, SLOs, observability, incident response, and collaborate with Security and Product to deliver secure, compliant internal tooling.

Build and maintain an AI-native EHR: own features end-to-end, ship continuously, use AI/LLMs to increase productivity, ensure reliability, and work across frontend, backend, data, jobs, and infra.

Build and ship native Android features for an AI-enabled neobank using Kotlin. Integrate backend APIs, improve performance and reliability, collaborate with product and design to simplify user journeys, and apply on-device AI where it enhances UX. Use analytics and production feedback to iterate.

Build and own end-to-end customer-facing features for web and mobile. Develop backend services and RESTful APIs in Node.js/TypeScript, responsive frontends in React/Next.js, integrate AI/LLM features, work with AWS infrastructure, ensure observability and security, contribute to CI/CD and testing, and mentor junior engineers in an Agile team.

Join Canonical as a graduate software engineer to write high-quality code across the open source stack, work on Linux system-level and application projects, engage with communities, respond to customer issues, and develop security-aware software while collaborating remotely and attending biannual in-person team sprints.