Top Java Developer Jobs in Kolkata

Own and develop Java/Spring Boot billing microservices that keep advertiser accounts accurate across MySQL, DynamoDB, MongoDB, and external platforms. Design transactional and event-driven systems, improve reliability and observability, deliver tested features through GitLab CI/CD, and support safe migrations and production deployments monitored with Datadog.

Design, build, optimize, and operate scalable, low-latency backend services for an AI risk decisioning SaaS platform. Collaborate with product, frontend, and QA teams; implement testing and CI/CD practices; monitor service health; resolve performance bottlenecks; and mentor junior engineers.

Develop Android and Fire TV applications plus scalable Go or Java backend services for subscriptions, payments, in-app purchases, and entitlement workflows. Design REST APIs, microservices, distributed transaction processing, and resilient systems supporting millions of users and traffic spikes. Optimize performance, implement monitoring and observability, troubleshoot production issues, and collaborate across engineering and product teams.

Design and build scalable Java backend services for subscriptions, payments, entitlements, and Fire TV in-app purchases. Develop REST APIs, microservices, event-driven workflows, and reliable transaction-processing systems. Integrate payment providers and external platforms while ensuring idempotency, fault tolerance, consistency, and high performance. Improve observability, troubleshoot distributed production systems, and participate in architecture and code reviews.

Build and maintain scalable full-stack subscription, payment, and entitlement systems using Java and modern web technologies. Develop React-based user experiences, REST APIs, microservices, and Fire TV in-app purchase integrations. Design resilient distributed systems supporting high concurrency, reliability, observability, and traffic spikes. Integrate payment providers and platform APIs, improve performance, handle reconciliation and failure scenarios, participate in architecture and code reviews, and mentor engineers.

Build and maintain scalable full-stack subscription, payment, and entitlement systems using Java and modern web technologies. Develop React-based frontends, REST APIs, and microservices; integrate Fire TV in-app purchases, payment providers, app stores, and platform APIs. Improve performance, reliability, monitoring, and distributed-system consistency under high traffic. Collaborate across engineering and product teams, deliver production features independently, and participate in design and code reviews.

Design and build scalable Java and Spring Boot backend services for subscriptions, payments, entitlements, and Fire TV in-app purchases. Develop REST APIs, microservices, and event-driven workflows integrating payment providers and external platforms. Ensure high availability, fault tolerance, idempotent transaction processing, and performance during traffic spikes. Troubleshoot distributed production systems, improve observability, and participate in architecture and code reviews while mentoring engineers.

Develop and enhance scalable Java Spring Boot microservices and cloud-native supply chain and warehouse management applications on GCP. Responsibilities include designing SCM/WMS modules, integrating UI components, managing codebases and CI/CD pipelines, collaborating with product, UX, and QA teams, and ensuring production performance, security, and reliability. The role also involves agile ceremonies, code reviews, technical design, and supporting logistics workflows.

Develop and maintain high-throughput distributed services for Binance’s KYC platform. Responsibilities include translating business requirements into reliable Java services, writing tests and documentation, tuning performance, troubleshooting incidents, collaborating across engineering teams, and mentoring junior engineers. The role requires expertise in Java, Spring, MySQL, distributed system design, messaging middleware, and collaboration across global teams. KYC or compliance experience and JVM, SQL, or RPC performance-tuning experience are desirable.

Develop Java backend software using Core Java, object-oriented programming, Spring Boot, REST APIs, databases, Redis, JPA, Docker, and JUnit. Collaborate with IT teams to create high-quality software solutions, troubleshoot problems, and support reliable application development. The role requires Java up to version 17, database experience, strong analytical skills, and effective communication.

Develop and maintain Java applications, RESTful services, and Angular frontends using Spring Boot and NgRx. Deploy applications to cloud platforms, practice TDD, manage CI/CD with Jenkins, and work with Oracle and PostgreSQL databases. Participate in agile processes, collaborate with cross-functional teams, mentor engineers, and independently lead technical initiatives and feature delivery.

Develop scalable full-stack applications using Java, React.js, Spring Boot microservices, Kafka, and AWS. Responsibilities include REST API development, cloud deployment, CI/CD, database integration, performance optimization, security, monitoring, logging, and production-ready code delivery. The role requires expertise in Java concurrency, event-driven architecture, Docker, Jenkins, Redis, observability tools, and SQL databases.

Develop scalable full-stack enterprise applications using Java, Spring Boot, microservices, REST APIs, and React or Angular. Design architectures, integrate databases and messaging systems, implement security, testing, CI/CD, Docker, Kubernetes, and cloud deployments. Apply agentic AI, LLM integrations, AI coding tools, prompt engineering, and tool calling to improve development workflows. Troubleshoot production issues, collaborate across technical teams, conduct code reviews, and mentor developers.

Develop and implement financial products such as wallets, payment gateways, cash rebates, merchant management, and compliance systems. Build open APIs, collaborate with product managers, tune performance, troubleshoot online incidents, refactor systems, and write clean, maintainable Java code using engineering best practices.

Build scalable enterprise applications using Java and Vue3. Develop RESTful APIs and maintainable frontend and backend code with Spring Boot, TypeScript, HTML5, CSS3, and MySQL. Apply Spring Security, JPA, JWT, design patterns, and enterprise architecture principles. Collaborate within Agile Scrum processes, follow SDLC practices, and deliver clean, testable software while solving technical problems effectively.

Develop and maintain backend microservices using Java, Spring Boot, WebFlux, GraphQL, and related technologies. Build integrations, collaborate on architecture and deployments, implement CI/CD pipelines and testing frameworks, contribute to containerization, optimize MongoDB, support AWS event-driven processing, and work within agile teams using JIRA and Confluence.

Design, build, and operate Java backend services, REST APIs, compliance capabilities, and analytics products. Develop blockchain data pipelines, model relational and NoSQL data, optimize queries, and improve production reliability, observability, and performance. Translate regulatory requirements into technical solutions while collaborating with compliance and product specialists. The role may also involve AWS infrastructure, Kafka, crypto integrations, and AI-assisted development tools.

Design, implement, and maintain high-volume, low-latency Java applications. Participate across the development lifecycle, write testable code, perform analysis, testing, debugging, produce releases, and recommend architectural improvements.

Designs and develops content governance platforms, anti-abuse tools, rule engines, and scalable governance pipelines. Integrates recommendation systems, implements content takedown policies, and builds capabilities for content review, risk detection, policy enforcement, and effectiveness analysis. The role addresses spam, fraud, traffic diversion, low-quality content, and black- or gray-market activity while collaborating with product, operations, algorithm, and business teams.

Develop and maintain fintech applications using Java and Spring Boot. Design secure RESTful APIs for financial transactions, translate financial workflows into technical solutions, ensure PCI DSS and GDPR compliance, and optimize high-volume, low-latency systems. Participate in Agile ceremonies, code reviews, CI/CD, Docker, cloud, and DevOps practices while collaborating with product managers, analysts, business units, leaders, associates, and clients.

Develop secure, high-performance financial transaction systems using Java, Spring Boot, microservices, React.js, and RESTful APIs. Build and integrate financial APIs using OAuth2 and JWT, ensure PCI DSS and GDPR compliance, optimize high-volume low-latency applications, and collaborate with product teams. Participate in Agile practices, code reviews, and DevOps activities while delivering technical solutions across business and product stakeholders.

Design, develop, and maintain high-performance, secure Java backend services and APIs. Ensure reliability, scalability, and cost-efficiency across microservices, databases, messaging systems, and capacity planning. Troubleshoot, profile, benchmark, and optimize systems (including ML applications) and collaborate with Kazakhstan stakeholders.

Develop and design websites and eCommerce solutions (WordPress/CMS), integrate social media and SEO, and work with web/backend technologies (PHP, Java, .NET, Android, JavaScript, HTML5, AngularJS, MS SQL). Open to freshers and experienced candidates; excellent English communication required.

Candidates are asked to register on the JobDials portal for an urgent client role and then call the listed contact between 11:00 AM and 2:00 PM for instant support.

No specific job responsibilities or technical requirements are listed. Company describes a recruitment platform. Role title indicates an entry-level/fresher Java developer position, but duties and expectations are not provided.