Total 79 java developer job vacancies in Engineering category in Singapore

Responsibilities

• Develop and maintain server-side services and core modules with solid code quality and clean architecture.
• Design, implement, and maintain APIs for product features; ensure secure design (least privilege), reliability, and good performance.
• Participate in requirement analysis and technical solution design; collaborate with cross-functional teams to deliver features end-to-end.
• Integrate third-party SDKs/services; troubleshoot and resolve production issues.
• Research new technologies, write clear technical documentation, and share knowledge within the team.

Requirements

• Diploma/Bachelor’s degree or equivalent in Computer Science, IT, Software Engineering, Game Development, or related fields; fresh graduates are welcome.
• Backend development fundamentals (meet any one track):

1. Go (Golang), or
2. PHP (any framework such as Laravel/Swoole/Phalcon), or
3. Java.

• Solid understanding of backend basics: OOP, common data structures, basic networking concepts, and practical debugging skills.
• Familiarity with databases and data stores (e.g., MySQL; Redis as a plus) and basic Linux/CLI usage.
• Strong learning agility, ownership, and teamwork; able to communicate clearly and drive tasks to completion.
• Proficiency in written and spoken Mandarin is required for this position. Justification: The incumbent is required to facilitate seamless communication and technical collaboration with our HQ and regional R&D/support teams in China. Responsibilities include participating in meetings conducted in Mandarin, interpreting technical specifications, and managing project documentation in Chinese.

Preferred (within Requirements)

• Experience with one or more backend frameworks and good engineering practices (code review, modular design, reusable services).
• Interest or exposure to distributed systems and cloud-native tooling (e.g. Docker/Kubernetes), caching and messaging systems.
• Full-stack advantage: able to collaborate smoothly on client-server integration and handle basic deployment/ops tasks.
• AI-driven development advantage: effectively use AI tools to improve productivity while keeping outputs verifiable and maintainable (design, code generation, refactoring, testing, debugging, documentation, and code review).

Development and delivery with Java, EJB, SpringBoot, MySQL, Oracle and IBM MQ.

Understand business / system requirements andtranslate them into technical solutions that are scalable, stable and fit forpurpose.

Tackle very complex legacy defects thatmediocre developers cannot analyse/solve.

Ensure adherence to the bank standards (includingcode, security and performance).

The role provides exposures to WealthManagement systems.

Passionate about technologies and buildingrobust and scalable Java Systems.

Analysis, design coding, and implementationof complex and custom-built applications.

Work collaboratively with team to achievegoals. Experience working in Agile methodologies, such as Scrum, and/or Extremeprogramming.

Experience in following in following bestpractices like Test-Driven Development (TDD) and continuous Integration (CI)

Must Have:

Core Java 8+ and JUnit.

Spring Boot

Strong computer science knowledge (algorithms, data structures,object-oriented design)

TDD. Able to write acceptance test.

Maven

Basic Linux shell scripting commands

Java Messaging Concepts. (JMS, MQ)

Relational Database concepts, SQL, joins, index, triggers etc.

Web Services Rest, SOAP.

Spring core concepts.

Role Overview

We are seeking a Backend Engineer to design and build scalable, high-performance systems. You will work on core infrastructure, APIs, and distributed services that power critical business functions.

Key Responsibilities

• Design, develop, and maintain backend services using Go or Java
• Build scalable, low-latency, and high-availability systems
• Develop and optimize RESTful / gRPC APIs
• Work with distributed systems, messaging queues, and databases
• Collaborate with product, frontend, and infrastructure teams
• Monitor system performance and troubleshoot production issues

Requirements

• 2–5+ years of backend development experience
• Strong proficiency in Go or Java
• Experience with distributed systems, microservices architecture
• Familiarity with databases (MySQL, PostgreSQL, Redis, etc.)
• Understanding of system design, concurrency, and performance optimization
• Experience with cloud platforms (AWS/GCP/Azure) is a plus

Responsibilities:

• Design and evaluate scalable, secure, and fault-tolerant systems, incorporating multi-region disaster recovery and ensuring robust data consistency.
• Offer domain expertise and guidance across teams, facilitating cross-functional architectural discussions.
• Convert complex business requirements into scalable technical solutions that align with long-term product and company objectives.
• Develop high-quality, reusable components and establish best practices to enhance efficiency across teams.
• Establish and implement domain-level standards, governance frameworks, and process improvements, including microservice design, observability, and code quality.
• Mentor engineers, promote knowledge sharing, and foster a culture of continuous learning and innovation.

Qualifications:

• Holds a Bachelor's degree in Computing, Software Engineering, IT, or a related field.
• Over 8 years of experience in backend system design and development, with a proven record of delivering mission-critical systems.
• Strong expertise in Java or Go, with in-depth knowledge of backend frameworks (e.g., Spring Boot, WebFlux), messaging systems (e.g., Kafka), and distributed databases (SQL/NoSQL, Redis, etc.).
• Skilled in designing and scaling large distributed systems with a focus on performance, availability, security, and resilience.
• Capable of defining and implementing engineering standards and technical guidelines at the system or domain level.
• Continuously evaluates and integrates new technologies to enhance systems and processes.
• Anticipates edge cases and long-term impacts, incorporating robustness, observability, and compliance from the design stage.
• Effectively drives adoption of best practices and standards across teams and stakeholders.
• Makes informed, strategic decisions backed by technical expertise and business impact analysis.

We regret only shortlisted candidates will be contacted. All applications will be handled confidentially. By submitting your application, you agree to the collection, use, retention, and disclosure of your personal information to prospective employers.

Wecruit Pte Ltd

EA License No: 20C0270

EA Personnel: Nyon Hock Sen (Aden)

EA Personnel Reg No: R24124070

Responsibilities
• Design, develop, and implement integration solutions for applications migrating to the AWS Cloud platform• Prepare detailed migration plans, timelines, and risk mitigation strategies
• Collaborate with cross-functional teams to understand business requirements and implement effective integration strategies
• Work closely with the migration team to execute the migration of applications to the AWS Cloud
• Create and implement APIs to facilitate communication between applications and services
• Ensure API designs adhere to best practices for scalability, security, and performance
• Collaborate with team members to troubleshoot complex problems related to integration processes
• Conduct thorough testing of integration solutions to ensure functionality, performance, and data accuracy
• Collaborate with QA teams to develop and execute test plans for integrated systems
• Provide documentation for troubleshooting and support purposes
• Create and implement APIs to facilitate communication between applications and services
• Ensure API designs adhere to best practices for scalability, security, and performance

Requirements
• Degree in Computer Science, Computer Engineering or equivalent with at least 5 years of experience in Java development (Java 8 and above, J2EE, EJB, Spring Framework, etc.,)
• In-depth knowledge and hands-on experience with Enterprise service bus such as OSB (Oracle Service Bus), including configuration, deployment, and management
• Knowledge of and Spring framework, specifically in Spring Boot, Spring MVC, Spring Security, Spring AOP, and API integration with SOAP and RESTful webservices
• Strong experience in OSB service routing, mediation, message transformation, and integration patterns
• Ability to manage integrations & authentication between OSB and various systems, ensuring secure connection
• Experience in JMS (Java Message Service) configuration and administration, including message queuing and reliable message delivery
• Experience with Oracle WebLogic Server administration, including installation, configuration, and troubleshooting
• Experience in designing, developing, and supporting SOA composites using Oracle SOA Suite (BPEL, Mediator, OSB)
• Familiarity with database integration to Oracle DB and PostgreSQL using Spring Data JPA, Hibernate, JDBC
• Knowledge in building and version control with Git, Gradle, Apache Ant
• Hands-on experience with AWS Cloud-native services (e.g. EC2, S3, Lambda, SQS, RDS, Kubernates, API Gateway.)
• Hands-on experience with CI/CD tools like Jenkins, GitLab CI, Bamboo or Circle CI
• Familiarity with IaC tools like Terraform or CloudFormation
• Ability to handle performance tuning, monitoring, and scaling of OSB and associated components in AWS, ensuring optimal performance and reliability
• Strong understanding of RESTful APIs, SOAP, and other communication protocols

Good to have : 
• Proficient in API Gateway (e.g., Broadcom Layer7, AWS API GW), including configuration, deployment, and administration of APIs and policies
• Experience with API gateway features such as routing, transformation, rate limiting, and content-based routing
• Knowledge of API gateway security mechanisms, including authentication & certificate management
• Knowledge of migration strategies and best practices for transitioning from on-premises API Gateway to AWS, potentially using AWS API Gateway
• Ability to adapt API gateway configurations and features to fit AWS API Gateway capabilities and requirements, ensuring seamless transition and optimization

Licence no: 12C6060

Responsibilities:

• Design and evaluate scalable, secure, and fault-tolerant systems, incorporating multi-region disaster recovery and ensuring robust data consistency.
• Offer domain expertise and guidance across teams, facilitating cross-functional architectural discussions.
• Convert complex business requirements into scalable technical solutions that align with long-term product and company objectives.
• Develop high-quality, reusable components and establish best practices to enhance efficiency across teams.
• Establish and implement domain-level standards, governance frameworks, and process improvements, including microservice design, observability, and code quality.
• Mentor engineers, promote knowledge sharing, and foster a culture of continuous learning and innovation.

Qualifications:

• Holds a Bachelor's degree in Computing, Software Engineering, IT, or a related field.
• Over 8 years of experience in backend system design and development, with a proven record of delivering mission-critical systems.
• Strong expertise in Java or Go, with in-depth knowledge of backend frameworks (e.g., Spring Boot, WebFlux), messaging systems (e.g., Kafka), and distributed databases (SQL/NoSQL, Redis, etc.).
• Skilled in designing and scaling large distributed systems with a focus on performance, availability, security, and resilience.
• Capable of defining and implementing engineering standards and technical guidelines at the system or domain level.
• Continuously evaluates and integrates new technologies to enhance systems and processes.
• Anticipates edge cases and long-term impacts, incorporating robustness, observability, and compliance from the design stage.
• Effectively drives adoption of best practices and standards across teams and stakeholders.
• Makes informed, strategic decisions backed by technical expertise and business impact analysis.

We regret only shortlisted candidates will be contacted. All applications will be handled confidentially. By submitting your application, you agree to the collection, use, retention, and disclosure of your personal information to prospective employers.

Wecruit Pte Ltd

EA License No: 20C0270

EA Personnel: Nyon Hock Sen (Aden)

EA Personnel Reg No: R24124070

Key Responsibilities

• Develop and maintain scalable web applications and backend services using Java and JavaScript-based technologies.
• Build RESTful APIs and microservices using Spring Boot and Node.js.
• Design responsive user interfaces using React.js and TypeScript.
• Work with SQL and NoSQL databases such as PostgreSQL, MongoDB, and ElasticSearch.
• Collaborate in an Agile development environment with cross-functional teams including DevOps, QA, and Product.
• Implement CI/CD pipelines and participate in DevOps practices using Docker and related tools.
• Ensure software quality through unit testing, code reviews, and automated testing.
• Troubleshoot issues and optimize application performance.

Requirements

• Bachelor’s degree in Computer Science, Engineering, or a related field.
• Strong proficiency in Java and JavaScript, with experience in Spring Boot, Node.js, and React.js.
• Proficient in TypeScript, MongoDB, and SQL/NoSQL databases.
• Familiarity with Docker, ElasticSearch, and DevOps concepts.
• Experience working in an Agile/Scrum environment.
• Good understanding of system design, APIs, and microservices architecture.
• Strong analytical and problem-solving skills.

Work Location: Central

(EA Reg No: 20C0312)

Please email a copy of your detailed resume to kayla@talentsis.com.sg for immediate processing.

Only shortlisted candidates will be notified.

ob Responsibilities

1. Design, develop and maintain high-performance, highly scalable and stable Java backend systems and services.

2. Be responsible for the development of the company's digital currency business services, promote the connection of digital currency channels and distribution channels, and oversee the construction and optimization of relevant management systems.

Job Requirements

1. Bachelor’s degree or above in Computer Science, Software Engineering, Mathematics or a related field.

2. At least 2 years of development experience; proficient in Java and core technologies including JVM, multithreading, IO and collection frameworks; familiar with mainstream frameworks such as Spring Boot, Spring Cloud and MyBatis.

3. Familiar with relational databases (MySQL) and NoSQL databases (Redis, MongoDB), with experience in database performance optimization.

4. Familiar with protocols such as TCP/IP and Socket, familiar with the development process of RESTful interfaces, and understand distributed systems, Redis, MQ messaging and other components.

5. Strong problem-solving skills, good communication and teamwork skills, with a passion for technical research and innovation.

6. Knowledge of blockchain, cryptocurrency or stablecoin is preferred.

Location - Toa Payoh
1 Year Contract

Job Description
-Design, develop, and maintain backend services using Python and/or Java
-Implement RESTful APIs and backend logic based on functional and technical requirements
-Develop and optimize database queries, schemas, and data access layers
-Integrate backend services with frontend applications and external systems
-Ensure backend services meet performance, security, and reliability requirements
-Write clean, maintainable, and well-documented backend code
-Perform unit and integration testing for backend components
-Participate in code reviews and contribute to technical discussions
-Support SIT and UAT activities, including defect analysis and resolution
-Assist in deployment support and post-go-live stabilization
-Maintain technical documentation for backend components

Top 3 MUST have skills:
-Strong hands-on experience developing backend services using Python and/or Java.
-Proven ability to design and implement RESTful APIs and backend business logic.
-Experience working with databases and integrating backend services with other systems.

Good to have skills (Optional)
-Familiarity with message queues or event-driven processing
-Experience handling data validation and transformation logic
-Understanding of transaction management and error handling
-Experience implementing role-based access control (RBAC)
-Exposure to code refactoring and technical debt management

Responsibilities:

• Design and evaluate scalable, secure, and fault-tolerant systems, incorporating multi-region disaster recovery and ensuring robust data consistency.
• Offer domain expertise and guidance across teams, facilitating cross-functional architectural discussions.
• Convert complex business requirements into scalable technical solutions that align with long-term product and company objectives.
• Develop high-quality, reusable components and establish best practices to enhance efficiency across teams.
• Establish and implement domain-level standards, governance frameworks, and process improvements, including microservice design, observability, and code quality.
• Mentor engineers, promote knowledge sharing, and foster a culture of continuous learning and innovation.

Qualifications:

• Holds a Bachelor's degree in Computing, Software Engineering, IT, or a related field.
• Over 8 years of experience in backend system design and development, with a proven record of delivering mission-critical systems.
• Strong expertise in Java or Go, with in-depth knowledge of backend frameworks (e.g., Spring Boot, WebFlux), messaging systems (e.g., Kafka), and distributed databases (SQL/NoSQL, Redis, etc.).
• Skilled in designing and scaling large distributed systems with a focus on performance, availability, security, and resilience.
• Capable of defining and implementing engineering standards and technical guidelines at the system or domain level.
• Continuously evaluates and integrates new technologies to enhance systems and processes.
• Anticipates edge cases and long-term impacts, incorporating robustness, observability, and compliance from the design stage.
• Effectively drives adoption of best practices and standards across teams and stakeholders.
• Makes informed, strategic decisions backed by technical expertise and business impact analysis.

We regret only shortlisted candidates will be contacted. All applications will be handled confidentially. By submitting your application, you agree to the collection, use, retention, and disclosure of your personal information to prospective employers.

Wecruit Pte Ltd

EA License No: 20C0270

EA Personnel: Nyon Hock Sen (Aden)

EA Personnel Reg No: R24124070

Role:

• Communicate highly technical issues to non-technical audience.
• Earn good reputation of being technically strong in the organization by help solving problems others struggle
• Development and delivery with Java, EJB, Spring Boot, MySQL, Oracle and IBM MQ.
• Understand business / system requirements and translate them into technical solutions that are scalable, stable and fit for purpose.
• Ensure adherence to the bank standards (including code, security and performance).
• The role provides exposures to Wealth Management systems.
• Passionate about technologies and building robust and scalable Java Systems.
• Analysis, design coding, and implementation of complex and custom-built applications.
• Work collaboratively with team to achieve goals.
• Experience working in Agile methodologies, such as Scrum, and/or Extreme programming.
• Experience in following in following best practices like Test-Driven Development (TDD) and continuous Integration (CI)
• Investigate and resolve production issues to help maintain a stable production environment; remain cool and effective in crisis.
• Analyse requirements, estimate efforts, plan timeline, manage progress.
• Ensure awareness, involvement and support from the key stakeholders and participants by building strong project teams and maintaining robust communication on the project status throughout its life cycle
• Drive and review technical and architectural design, enforce architectural guidelines and challenge status quo.

Requirements

• Minimum of 8 years of Software development experience
• Minimum of Bachelors degree in Computer Science or similar relevant education background.
• Strong banking or financial services industry experience is mandatory
  Skills requirements
• Core Java 8+ and JUnit.
• Spring Boot
• Strong computer science knowledge (algorithms, data structures, object-oriented design)
• TDD. Able to write acceptance test.
• Maven & Basic Linux shell scripting commands
• Java Messaging Concepts. (JMS, MQ)
• Relational Database concepts, SQL, joins, index, triggers etc.
• Web Services Rest, SOAP.
• Spring core concepts.
• Experience in SQL queries optimisation
• Familiarity with Intellij, Git, SonarQube/SonarLint
• JBOSS (or any other application server knowledge).
• Java Server Faces, JPA, EJB knowledge.
• Kafka
• React JS

Role:

• Development and delivery with Java, EJB, Spring Boot, MySQL, Oracle and IBM MQ.
• Understand business / system requirements and translate them into technical solutions that are scalable, stable and fit for purpose.
• Ensure adherence to the bank standards (including code, security and performance).
• The role provides exposures to Wealth Management systems.
• Passionate about technologies and building robust and scalable Java Systems.
• Analysis, design coding, and implementation of complex and custom-built applications.
• Work collaboratively with team to achieve goals.
• Experience working in Agile methodologies, such as Scrum, and/or Extreme programming.
• Experience in following in following best practices like Test-Driven Development (TDD) and continuous Integration (CI)
• Investigate and resolve production issues to help maintain a stable production environment; remain cool and effective in crisis.
• Analyse requirements, estimate efforts, plan timeline, manage progress.
• Ensure awareness, involvement and support from the key stakeholders and participants by building strong project teams and maintaining robust communication on the project status throughout its life cycle
• Drive and review technical and architectural design, enforce architectural guidelines and challenge status quo.

Requirements

• Minimum of 8 years of Software development experience
• Minimum of Bachelors degree in Computer Science or similar relevant education background.
• Strong banking or financial services industry experience is mandatory
  Skills requirements
• Core Java 8+ and JUnit with experience in Spring Boot
• Strong computer science knowledge (algorithms, data structures, object-oriented design)
• TDD Able to write acceptance test.
• Maven & Basic Linux shell scripting commands
• Java Messaging Concepts. (JMS, MQ)
• Relational Database concepts, SQL, joins, index, triggers etc.
• Web Services Rest, SOAP.
• Spring core concepts.
• Experience in SQL queries optimisation
• Familiarity with Intellij, Git, SonarQube/SonarLint
• JBOSS (or any other application server knowledge).
• Java Server Faces, JPA, EJB knowledge.
• Kafka
• ReactJS

EA Reg. No. 25C2690 | EA License No. R1330510

Responsibilities:

• Design and evaluate scalable, secure, and fault-tolerant systems, incorporating multi-region disaster recovery and ensuring robust data consistency.
• Offer domain expertise and guidance across teams, facilitating cross-functional architectural discussions.
• Convert complex business requirements into scalable technical solutions that align with long-term product and company objectives.
• Develop high-quality, reusable components and establish best practices to enhance efficiency across teams.
• Establish and implement domain-level standards, governance frameworks, and process improvements, including microservice design, observability, and code quality.
• Mentor engineers, promote knowledge sharing, and foster a culture of continuous learning and innovation.

Qualifications:

• Holds a Bachelor's degree in Computing, Software Engineering, IT, or a related field.
• Over 8 years of experience in backend system design and development, with a proven record of delivering mission-critical systems.
• Strong expertise in Java or Go, with in-depth knowledge of backend frameworks (e.g., Spring Boot, WebFlux), messaging systems (e.g., Kafka), and distributed databases (SQL/NoSQL, Redis, etc.).
• Skilled in designing and scaling large distributed systems with a focus on performance, availability, security, and resilience.
• Capable of defining and implementing engineering standards and technical guidelines at the system or domain level.
• Continuously evaluates and integrates new technologies to enhance systems and processes.
• Anticipates edge cases and long-term impacts, incorporating robustness, observability, and compliance from the design stage.
• Effectively drives adoption of best practices and standards across teams and stakeholders.
• Makes informed, strategic decisions backed by technical expertise and business impact analysis.

We regret only shortlisted candidates will be contacted. All applications will be handled confidentially. By submitting your application, you agree to the collection, use, retention, and disclosure of your personal information to prospective employers.

Wecruit Pte Ltd

EA License No: 20C0270

EA Personnel: Nyon Hock Sen (Aden)

EA Personnel Reg No: R24124070

Responsibilities:

• Design and evaluate scalable, secure, and fault-tolerant systems, incorporating multi-region disaster recovery and ensuring robust data consistency.
• Offer domain expertise and guidance across teams, facilitating cross-functional architectural discussions.
• Convert complex business requirements into scalable technical solutions that align with long-term product and company objectives.
• Develop high-quality, reusable components and establish best practices to enhance efficiency across teams.
• Establish and implement domain-level standards, governance frameworks, and process improvements, including microservice design, observability, and code quality.
• Mentor engineers, promote knowledge sharing, and foster a culture of continuous learning and innovation.

Qualifications:

• Holds a Bachelor's degree in Computing, Software Engineering, IT, or a related field.
• Over 8 years of experience in backend system design and development, with a proven record of delivering mission-critical systems.
• Strong expertise in Java or Go, with in-depth knowledge of backend frameworks (e.g., Spring Boot, WebFlux), messaging systems (e.g., Kafka), and distributed databases (SQL/NoSQL, Redis, etc.).
• Skilled in designing and scaling large distributed systems with a focus on performance, availability, security, and resilience.
• Capable of defining and implementing engineering standards and technical guidelines at the system or domain level.
• Continuously evaluates and integrates new technologies to enhance systems and processes.
• Anticipates edge cases and long-term impacts, incorporating robustness, observability, and compliance from the design stage.
• Effectively drives adoption of best practices and standards across teams and stakeholders.
• Makes informed, strategic decisions backed by technical expertise and business impact analysis.

We regret only shortlisted candidates will be contacted. All applications will be handled confidentially. By submitting your application, you agree to the collection, use, retention, and disclosure of your personal information to prospective employers.

Wecruit Pte Ltd

EA License No: 20C0270

EA Personnel: Nyon Hock Sen (Aden)

EA Personnel Reg No: R24124070

Key Responsibilities

• Develop and maintain scalable web applications and backend services using Java and JavaScript-based technologies.
• Build RESTful APIs and microservices using Spring Boot and Node.js.
• Design responsive user interfaces using React.js and TypeScript.
• Work with SQL and NoSQL databases such as PostgreSQL, MongoDB, and ElasticSearch.
• Collaborate in an Agile development environment with cross-functional teams including DevOps, QA, and Product.
• Implement CI/CD pipelines and participate in DevOps practices using Docker and related tools.
• Ensure software quality through unit testing, code reviews, and automated testing.
• Troubleshoot issues and optimize application performance.

Requirements

• Bachelor’s degree in Computer Science, Engineering, or a related field.
• Strong proficiency in Java and JavaScript, with experience in Spring Boot, Node.js, and React.js.
• Proficient in TypeScript, MongoDB, and SQL/NoSQL databases.
• Familiarity with Docker, ElasticSearch, and DevOps concepts.
• Experience working in an Agile/Scrum environment.
• Good understanding of system design, APIs, and microservices architecture.
• Strong analytical and problem-solving skills.

Work Location: Central

(EA Reg No: 20C0312)

Please email a copy of your detailed resume to kayla@talentsis.com.sg for immediate processing.

Only shortlisted candidates will be notified.