Top Java Developer Jobs in Singapore

Leads software engineering within an agile Asset and Wealth Management technology team. Designs, develops, tests, troubleshoots, and reviews secure, scalable Java applications. Drives production stability, automation, CI/CD, resiliency, and responsible adoption of AI-assisted development tools. Coaches engineers on validating AI outputs and secure practices, and evaluates vendor and architectural solutions. Requires cloud-native experience, financial services IT knowledge, and expertise with Java and Spring Boot; AWS and Terraform experience is preferred.

Develops secure, scalable Java applications and microservices for JPMorganChase’s Asset and Wealth Management technology teams. Responsibilities include system design, RESTful API development, production coding, troubleshooting, architecture documentation, data analysis, and TDD/BDD testing. The role requires Java and Spring/Spring Boot expertise, software development lifecycle knowledge, secure coding practices, and experience with enterprise AI-assisted development tools. Preferred experience includes AWS, Terraform, front-end technologies, and full-stack development.

Lead development and maintenance of a resilient, cloud-native algorithmic equities trading platform. Design and implement trading strategies, produce high-quality Java production code, ensure operational stability, drive automation/CI-CD, collaborate with front office, evaluate vendors, and lead engineering best practices.

Design, develop, test, and maintain secure, scalable cloud platform services. Produce high-quality production code, architecture artifacts, and data-driven insights. Use enterprise AI-assisted development tools responsibly, participate in CI/CD and resiliency practices, and troubleshoot complex production issues to ensure operational stability.

Design, develop, and maintain Java and VolPay payment and messaging solutions for banking platforms. Responsibilities include customizing payment workflows, integrating APIs with internal systems and external networks, supporting SWIFT, ISO 20022, and SEPA flows, conducting testing and code reviews, troubleshooting production issues, contributing to DevOps processes, and supporting deployments. The role collaborates with business stakeholders and technical teams to deliver scalable, reliable payment solutions.

Leads the design, development, integration, testing, deployment, and enhancement of complex Java full-stack applications. Partners with management and technology teams to improve systems, resolve high-impact issues, ensure architectural alignment, establish coding and testing standards, and deliver new products. Provides technical leadership, mentors developers and analysts, manages risk and compliance, and applies expertise across Java, Python, Angular, APIs, microservices, databases, DevOps tools, and automated testing.

Develop and maintain full-lifecycle web and mobile applications using Java, AEM, and related cloud technologies. Responsibilities include requirements gathering, solution design, development, release management, post-launch maintenance, issue resolution, and collaboration with Product, Design, Business, and agile delivery teams. The role also supports project managers and Scrum Masters in stakeholder consultation and delivery. Candidates may work across full-stack development, DevOps, cloud infrastructure, databases, microservices, and platform technologies.

Own and improve core Web3 wallet backend modules, including address management, asset synchronization, transaction construction, signing, broadcasting, confirmations, gas, nonce management, and state tracking. Integrate new blockchains and asset standards, ensure high-concurrency production stability, troubleshoot incidents, drive cross-team delivery, improve engineering quality, and use AI coding tools responsibly.

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 support high-volume, low-latency Java microservices using Spring Boot, Angular, REST, and database technologies. Responsibilities include system design, coding, testing, CI/CD deployment, application security, monitoring, performance tuning, SRE collaboration, resiliency testing, and Level 3 production support within an Agile environment.

Develop, test, implement, maintain, and troubleshoot enterprise Java applications. Build features, resolve defects, optimize performance, support integration and acceptance testing, document technical work, participate in code reviews, and collaborate with developers, analysts, and project teams while following secure software engineering practices.

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.

Provides application support for business-critical systems by troubleshooting production issues, monitoring performance, resolving incidents, supporting enhancements and deployments, debugging, conducting root cause analysis, maintaining technical documentation, and participating in continuous improvement. Collaborates with developers, business users, and support teams to maintain application stability and availability.

Internship QA Engineer supporting Binance’s compliance and digital finance products. Responsibilities include understanding business and technical scenarios, designing and reviewing test cases, executing functional and regression testing, tracking defects, and developing automation scripts. Requires hands-on Java coding, MySQL familiarity, QA methodology knowledge, analytical and troubleshooting skills, communication, and a five-day-per-week commitment.

Participate in testing backend microservices across APIs and service integrations. Design and execute functional, integration, and regression tests; track defects; validate MySQL data, idempotency, Kafka messaging, Redis state, and cross-service behavior. Build Java-based automated test suites using tools such as JUnit, TestNG, and REST Assured. Collaborate with developers and product managers, and use AI tools to improve testing coverage and efficiency.

Participate in Android and iOS app testing, including functional and regression testing. Design, execute, and review test cases; identify, track, and verify bug fixes; and collaborate with developers and product managers to resolve issues. Use AI tools to improve testing efficiency and coverage. This is a six-month, full-time early-career program requiring five days per week.

Build, maintain, and optimize scalable full-stack applications using React.js and Java. Develop microservices and API integrations, manage CI/CD pipelines, and architect cloud infrastructure on AWS or Azure using Kubernetes, EKS, or AKS. Troubleshoot frontend, backend, and infrastructure issues while improving application performance, security, and scalability. Collaborate cross-functionally and apply modern full-stack development practices.

Develop and maintain backend services using Java, microservices, Spring Boot, REST APIs, AWS, and Kubernetes. Apply object-oriented programming, test-driven development, JUnit, build automation, and CI/CD practices. Collaborate with a leading client and communicate effectively with technical and business stakeholders. Candidates must be based in Singapore and able to start within four weeks.

Design, build, and operate core wallet backend modules handling address management, transaction construction/broadcasting, nonce and gas handling, multi-chain integrations, monitoring, and incident troubleshooting. Own module design and delivery, improve system reliability and performance, integrate new blockchains and asset standards, and apply AI coding tools to increase engineering efficiency while maintaining high security and production stability.

As a Senior Java Engineer, you will design, develop, and maintain applications, write integration tests, and collaborate in an agile team.

Design, develop, refactor, and optimize core backend components for high-concurrency, high-performance systems. Contribute to architecture, full lifecycle development, deployments, monitoring, and cross-team collaboration while researching and implementing scalable solutions.

Responsible for designing, developing, and optimizing core system components. Involved in technical innovation, system architecture, and lifecycle participation while collaborating with teams.

Design, develop, refactor, and optimize backend system components. Build and maintain high-concurrency, high-performance, and highly available systems. Contribute to architecture, participate in full development lifecycle, research technical solutions, and collaborate with regional teams while sharing best practices.

Develop scalable backend compliance products using Java, Spring, microservices, databases, and messaging systems. Responsibilities include implementing product features, performance tuning, incident troubleshooting, system refactoring, resolving compliance issues, and collaborating across teams. The role requires strong distributed-systems knowledge, clean coding practices, cross-functional communication, and familiarity with Spring Cloud, Kafka, fintech, APIs, and cryptocurrency compliance.

Design and build highly available, high-concurrency payment backend systems for OKX Pay. Implement scan-to-pay, transaction processing, crypto/stablecoin on-chain flows, reconciliation, refunds, and robust state transitions. Ensure system stability, security of funds, observability, and drive incident resolution and architectural improvements.