Top Software Engineer Jobs in Kolkata

Develop and maintain cloud-native applications using Java/J2EE, Spring (Core and Boot) and RESTful services. Work on AWS/Azure, use Tomcat/TC Server and relational databases. Integrate ORM frameworks (MyBatis/Hibernate/JPA), collaborate in Agile teams, and optionally work with front-end tech (JavaScript/Angular) and shell scripting on Unix/Linux environments.

Design, develop, and maintain a digital platform using full-stack technologies. Set technical standards, assess platform implementations, define technical vision, participate in code reviews and testing, troubleshoot non-prod/production issues, and collaborate across teams to improve product quality and drive digital adoption.

Develop and maintain ServiceNow solutions including scripting, UI customization, workflows and REST API integrations. Collaborate with India and onsite partner teams, leverage JavaScript/Angular/Python and cloud services (AWS/Azure), provide customer-focused support and continuous system improvements.

Design, develop, and maintain NestJS applications in an Agile/Scrum environment. Build front-end functionality with AngularJS and automate tasks with Python scripting. Implement AWS cloud solutions (SQS, Lambda, Kinesis), design versioned APIs and microservices, and work with PostgreSQL and NoSQL datastores. Employ DevOps, CI/CD and automated testing (Jenkins, Maven, uDeploy, Stash). Collaborate across global teams and mentor junior engineers.

Design, build, test and maintain Java-based microservices on AWS. Implement automated tests, collaborate on architecture and CI/CD, optimize performance, and deliver end-to-end features with cross-functional teams.

Develop and customize ServiceNow solutions using JavaScript and platform scripting. Implement UI customizations and workflows, collaborate with India and onsite partner teams, and provide ongoing systems support while applying strong communication and customer-empathy skills.

Develop and maintain .NET desktop and web UI components using C#, WPF (MVVM), and Angular. Implement MVVM patterns, data templates, converters, event handling, async UI updates, and parallel tasks.

Senior-level full-stack engineer role focused on Angular and Node development, building REST APIs, and crafting prompts for Copilot. Secondary skills include AWS, Core Java, and Spring. Knowledge of GraphQL and end-to-end system understanding is a plus.

Develop and maintain front-end solutions using Angular/RxJS, JavaScript/TypeScript, HTML/CSS. Build and support Java/J2EE and Node.js applications, design and consume APIs, and implement cloud solutions on AWS within a Scrum team.

Build and operate scalable, low-latency APIs, event-driven services, integrations, and web applications supporting membership and loyalty experiences. Integrate and extend Antavo with commerce, CRM, CDP, marketing, and data platforms. Apply distributed-systems, reliability, observability, and security practices; troubleshoot production issues; contribute to reusable engineering assets; and mentor junior engineers.

Design, build, optimize, and support scalable consumer-facing mobile applications across iOS and Android using React Native, TypeScript, and JavaScript. Develop native integrations, reusable components, secure architectures, API integrations, automated testing, CI/CD pipelines, and production monitoring. Collaborate cross-functionally, contribute to releases and Agile delivery, mentor engineers, conduct code reviews, and drive mobile engineering excellence, accessibility, performance, and reliability.

Responsible for designing and implementing authentication features in Go and TypeScript, enhancing Auth architecture, and collaborating with teams to improve user experience.

The Software Engineer Frontend will design and implement user interface components, optimize performance, and collaborate with teams, ensuring a robust application.

Develop and maintain back-end web applications, ensuring efficient integration with front-end systems, optimizing performance, and collaborating with QA for testing.

Design, implement, and maintain scalable backend systems supporting Alpaca’s financial ledger and brokerage infrastructure. Own high-visibility features from design through deployment, collaborate with finance, operations, product, and engineering stakeholders, and improve system health. Build performant, reliable, maintainable services using modern distributed systems technologies while ensuring the ledger remains a correct source of truth for account transactions, reporting, and compliance.

Build and customize frontend solutions using Vanilla JavaScript, jQuery, HTML, and CSS. Debug complex client-side issues, manipulate the DOM, handle events, analyze Fetch/XHR requests, use MutationObservers, and modify live websites safely. Ensure cross-browser compatibility, responsive behavior, performance, and resilience to dynamic updates while collaborating cross-functionally on client scenarios and experiments.

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 optimize core backend systems enabling user features, real-time data synchronization (event-driven/CDC), advanced caching and connection pooling, and improved observability. Drive architectural and infrastructure upgrades, own deployment and scaling strategies, contribute to open-source, and raise backend engineering standards across the platform.

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.

Design, build, and operate resilient Java and Spring Boot backend services for inventory availability, order promising, and fulfillment. Develop event-driven Kafka integrations, concurrency and consistency controls, caching strategies, observability, and graceful degradation mechanisms. Own services from design through production, optimize performance and reliability, integrate with commerce and enterprise platforms, conduct code reviews, document architecture decisions, and mentor junior engineers.

Design, build, and own end-to-end cloud-native SaaS features and services. Implement scalable APIs, event-driven workflows, background workers, and async processing. Improve performance, reliability, and observability; participate in design reviews, on-call rotation, mentoring, and cross-team collaboration. Apply AI-assisted development practices while maintaining security and quality.

Build an AI-native EHR: design, implement, and ship end-to-end features across frontend, backend, data, and infra. Use LLMs and AI tooling, maintain reliability, refactor code, and iterate with users in a fast-moving startup environment.

As a Software Engineer - L3 Support, you will resolve complex Ubuntu-related issues, collaborate with teams, and participate in upstream communities to drive bug fixes and improvements.