Total 12 java developer job vacancies in Others category

Company Overview

WSH Experts Pte Ltd, based in Singapore, delivers integrated industry services with innovative solutions. Our experienced team combines global expertise and local knowledge to support organizations with tailored, effective strategies.

Job Summary

Develop, test, document, and maintain application programs using Java and related technologies. Support system design, user training, troubleshooting, and disaster recovery activities to ensure reliable system development and maintenance.

Responsibilities

• Code, modify, test, and document new and existing programs using assigned languages and tools following coding conventions to ensure quality deliverables
• Prepare and document test data to validate program functionality and accuracy
• Set up and maintain testing and production environments to support application deployment
• Develop and update program and system documentation to facilitate maintenance and user understanding
• Assist in defining file structures and processing logic requirements to support application functionality
• Produce deliverables that comply with group standards and procedures to maintain consistency and quality
• Support Project Leaders by contributing to application system study, design, work coordination, project management, and user training to enhance project outcomes
• Troubleshoot and resolve end-user issues during application implementation and maintenance to ensure system reliability
• Train contract programmers on relevant programming skills to build team capability
• Participate in Disaster Recovery activities, including simulation exercises at recovery sites, to ensure business continuity
• Acquire new programming skills related to system development and maintenance as assigned by supervisors to stay current with technology
• Perform any other tasks related to system development and maintenance as assigned by supervisors to support team objectives

Required competencies and certifications

• Experience coding with Java, JSP, Servlet, Java Bean, JavaScript, session management, JDBC, and SQL for at least 3 years within the past 4 years
• Experience coding with HTML5, XHTML, AJAX, Web Services (REST API), JSON, Java Server Faces, and EJ for at least 2 years within the past 3 years

Job Responsibilities

• Assist in the design, development, and maintenance of web and desktop applications
• Write clean, efficient, and maintainable code under the guidance of senior developers.
• Participate in code reviews, testing, and debugging to ensure high-quality deliverables.
• Work with databases (SQL Server or others) to develop queries, stored procedures, and data integration.
• Collaborate with cross-functional teams (designers, testers, project managers) to deliver projects on time.
• Learn and apply best practices in software development lifecycle (SDLC), agile methodologies, and version control (Git).
• Support troubleshooting, bug fixing, and enhancements for existing applications.
• Stay updated with the latest .NET frameworks, libraries, and tools to continuously improve skills.
• Document technical specifications, processes, and solutions for future reference.

Job Requirements

• Proven expertise in ASP.NET,C#, SQL optimization, API integration, Web Services.
• Experience in system design, architecture, performance tuning, and mentoring junior developers.
• Strong troubleshooting,stakeholder management, and documentation skills.
• Background working with government agencies in Singapore (GPS, GDC, GCC experience Optional).
• Knowledge of DevOps,CI/CD, Git/Azure DevOps.

Job Responsibilities

• Assist in the design, development, and maintenance of web and desktop applications
• Write clean, efficient, and maintainable code under the guidance of senior developers.
• Participate in code reviews, testing, and debugging to ensure high-quality deliverables.
• Work with databases (SQL Server or others) to develop queries, stored procedures, and data integration.
• Collaborate with cross-functional teams (designers, testers, project managers) to deliver projects on time.
• Learn and apply best practices in software development lifecycle (SDLC), agile methodologies, and version control (Git).
• Support troubleshooting, bug fixing, and enhancements for existing applications.
• Stay updated with the latest .NET frameworks, libraries, and tools to continuously improve skills.
• Document technical specifications, processes, and solutions for future reference.

Job Requirements

• Proven expertise in ASP.NET,C#, SQL optimization, API integration, Web Services.
• Experience in system design, architecture, performance tuning, and mentoring junior developers.
• Strong troubleshooting,stakeholder management, and documentation skills.
• Background working with government agencies in Singapore (GPS, GDC, GCC experience Optional).
• Knowledge of DevOps,CI/CD, Git/Azure DevOps.

Contract-2 Years
Responsibilities

•  Develop, maintain, and enhance UiPath Studio / StudioX automation workflows in line with Central RPA Platform standards and release schedules.
• Rework and refactor existing Studio / StudioX scripts to ensure compatibility with updated UiPath Automation Suite versions followingmajor upgrades.
• Support the full Service Request (SR) lifecycle – from development, SIT coordination, UAT support, to production deployment – within SLA timelines (Urgent SR ≤ 3 working days, Normal SR as mutually agreed).
• Conduct unit testing, functional testing, and SIT forall automation deliverables before handover to production.
• Implement new UiPath capabilities (e.g., AI Centre,Document Understanding, Task Mining, Process Mining) as directed by theSolution Architect.
• Maintain version control and configuration managementfor all automation assets on the Platform (Orchestrator).
• Ensure test data and test accounts are removed fromProduction before each release.
• Support annual UiPath platform upgrades by validating script compatibility on the Staging environment prior to Non-Production and Production rollout.
• Assist in troubleshooting and resolving automation incidents (Severity 1: resolve within 4 hours; Severity 2: within 3 working days; Severity 3: within 6 working days).
• Collaborate with business analysts and agency stakeholders to understand automation requirements and translate them into technical design specifications
• Maintain technical documentation including process definition documents (PDD), solution design documents (SDD), and user guides in editable format.

Requirements

• Minimum 3 years of hands-on experience in UiPath Studio/ StudioX automation development.
• Diploma or Bachelor's Degree in Computer Science, Information Technology, Engineering, or related discipline.
• UiPath Advanced RPA Developer (UiARD) certification –strongly preferred.
• Additional certifications in UiPath specialised products (Document Understanding, AI Centre) are advantageous
• UiPath Certified RPA Developer (UiARD) or equivalent UiPath certification (required).
• Proficiency with UiPath Orchestrator – publishing, scheduling, monitoring, and managing bots.
• Experience with at least 3 of the following UiPath Automation Suite components: Orchestrator, Document Understanding, AI Centre,Action Centre, Apps, Test Suite, Automation Hub, Process Mining.
• Experience with version control tools (e.g., Git) andCI/CD-integrated deployment pipelines.
• Ability to work within a Government Data Centre environment, comply with government ICT security policies, and handle Confidential / Sensitive High classified data.

Technical Skills

• UiPath Studio / StudioX / Studio Web – advanced workflow development.
• UiPath Orchestrator – tenant management, queues,assets, triggers, monitoring.
• REFramework (Robotic Enterprise Framework) designpatterns.
• API integrations (REST/SOAP), Excel/Office automation,SAP, web scraping.
• Knowledge of Kubernetes-based infrastructure sufficientto understand deployment contexts.
• Familiarity with Windows Server, Active Directory, ADFS, and SSO concepts.
• Government-standard OS and browser compatibility(Microsoft Edge Chromium, Google Chrome).

Good to Have

• Prior experience delivering RPA solutions in Singapore Government / Statutory Board / public sector projects.
• Exposure to Whole-of-Government (WOG) shared service environments or multi-agency platforms.
• Experience with UiPath Automation Suite (Kubernetes deployment) or UiPath Cloud.
• Familiarity with Government Commercial Cloud (GCC /GCC+) infrastructure.
• Experience with UiPath Document Understanding, AICentre, or Process Mining modules.
• Knowledge of ITIL-based incident and service request management processes.

Company Overview

WSH Experts Pte Ltd, based in Singapore, delivers integrated industry services with innovative solutions. Our experienced team combines global expertise and local knowledge to support organizations with tailored, effective strategies.

Job Summary

Develop, test, document, and maintain application programs using Java and related technologies. Support system design, user training, troubleshooting, and disaster recovery activities to ensure reliable system development and maintenance.

Responsibilities

• Code, modify, test, and document new and existing programs using assigned languages and tools following coding conventions to ensure quality deliverables
• Prepare and document test data to validate program functionality and accuracy
• Set up and maintain testing and production environments to support application deployment
• Develop and update program and system documentation to facilitate maintenance and user understanding
• Assist in defining file structures and processing logic requirements to support application functionality
• Produce deliverables that comply with group standards and procedures to maintain consistency and quality
• Support Project Leaders by contributing to application system study, design, work coordination, project management, and user training to enhance project outcomes
• Troubleshoot and resolve end-user issues during application implementation and maintenance to ensure system reliability
• Train contract programmers on relevant programming skills to build team capability
• Participate in Disaster Recovery activities, including simulation exercises at recovery sites, to ensure business continuity
• Acquire new programming skills related to system development and maintenance as assigned by supervisors to stay current with technology
• Perform any other tasks related to system development and maintenance as assigned by supervisors to support team objectives

Required competencies and certifications

• Experience coding with Java, JSP, Servlet, Java Bean, JavaScript, session management, JDBC, and SQL for at least 3 years within the past 4 years
• Experience coding with HTML5, XHTML, AJAX, Web Services (REST API), JSON, Java Server Faces, and EJ for at least 2 years within the past 3 years

Company Overview

WSH Experts Pte Ltd, based in Singapore, delivers integrated industry services with innovative solutions. Our experienced team combines global expertise and local knowledge to support organizations with tailored, effective strategies and implementations.

Job Summary

Develop and customize Sitecore and .Net solutions to build scalable, secure, and high-performance web applications. Collaborate across teams to deliver quality code and optimize user experience using modern frameworks and APIs.

Responsibilities

• Build and customize Sitecore and .Net solutions to meet business requirements and enhance functionality
• Develop Sitecore forms and Sitecore JSS components with clean, maintainable code adhering to performance and reusability best practices
• Create and maintain applications using .Net MVC framework to support dynamic web features
• Manage data interchange between Sitecore web applications and external systems via APIs to ensure seamless integration
• Code front-end web components using React framework to deliver responsive and interactive user interfaces
• Design and develop scalable, cloud-based solutions with a focus on security and optimal performance
• Optimize web applications for maximum speed, scalability, and reliability under varying loads
• Adhere to organizational development standards and best practices to maintain code quality and consistency
• Communicate effectively and collaborate with cross-functional teams to deliver project goals and resolve technical challenges

Required competencies and certifications

• Bachelor’s degree in Computer Science, Information Technology, or a related field
• Minimum five (5) years of hands-on post-graduate experience in Sitecore and .Net development

Preferred competencies and qualifications

• Proficient with Sitecore 9 and above, including Sitecore forms and Sitecore JSS
• Skilled in HTML, CSS, ASP.NET Core, .NET Core, and C# for web-based application development
• Experienced in React and JavaScript frameworks for front-end development
• Familiar with Agile methodologies such as Scrum for iterative project delivery
• Knowledgeable in cross-browser development and troubleshooting techniques
• Experienced in implementing traditional, headless, and hybrid CMS architectures

Key Responsibilities

• Code, modify, test, correct and document new and existing programs using assigned languages, tools and coding conventions;
• Code, modify, test, correct and document new and existing JCLs;
• Analyse the program specification to produce all testing condition and produce test data based on identified test conditions;
• Prepare JCL to load DB2 table or define VSAM files with the extracted test data for performing the various tests, eg stress test, regression test, performance test etc. When tested successfully, repeat the process for creating production DB2 & VSAM files;
• Prepare and maintain program and system documentation;
• Assist in establishing file structures and processing logic requirements;
• Produce deliverables according to group standards and procedures;
• Assist Project Leaders in the study and design of application systems and work coordination, project management and user training work;
• Troubleshooting and supporting end-users in the implementation and maintenance of application systems;
• Train other contract programmers in the relevant skills; Participate in Disaster Recovery activities eg simulation exercises at Disaster Recovery site;

Qualifications:

• Diploma/Degree In Information Technology
• Have at least three (3) years' post graduate programming experience on IBM mainframe z/OS and CICS operating environment using TSO, ISPF, COBOL for z/OS, CICS COBOL, JCL and other utilities.
• Have at least three (3) years' post graduate hands-on programming experience using COBOL for z/OS and CICS COBOL in processing IBM VSAM and sequential files and able to maintain VSAM file structure.
• Have at least three (3) years' post graduate working experience in preparing JCL for compilation, linkage and execution of COBOL for z/OS programs, Sort and other IBM Utilities. The 3 years’ working experience must be within the past 3 years timeframe;
• Have at least three (3) years' post graduate hands-on programming experience using DB2/SQL in COBOL for z/OS and CICS COBOL programs.

Key Responsibilities

• Code, modify, test, correct and document new and existing programs using assigned languages, tools and coding conventions;
• Code, modify, test, correct and document new and existing JCLs;
• Analyse the program specification to produce all testing condition and produce test data based on identified test conditions;
• Prepare JCL to load DB2 table or define VSAM files with the extracted test data for performing the various tests, eg stress test, regression test, performance test etc. When tested successfully, repeat the process for creating production DB2 & VSAM files;
• Prepare and maintain program and system documentation;
• Assist in establishing file structures and processing logic requirements;
• Produce deliverables according to group standards and procedures;
• Assist Project Leaders in the study and design of application systems and work coordination, project management and user training work;
• Troubleshooting and supporting end-users in the implementation and maintenance of application systems;
• Train other contract programmers in the relevant skills; Participate in Disaster Recovery activities eg simulation exercises at Disaster Recovery site;

Qualifications:

• Diploma/Degree In Information Technology
• Have at least three (3) years' post graduate programming experience on IBM mainframe z/OS and CICS operating environment using TSO, ISPF, COBOL for z/OS, CICS COBOL, JCL and other utilities.
• Have at least three (3) years' post graduate hands-on programming experience using COBOL for z/OS and CICS COBOL in processing IBM VSAM and sequential files and able to maintain VSAM file structure.
• Have at least three (3) years' post graduate working experience in preparing JCL for compilation, linkage and execution of COBOL for z/OS programs, Sort and other IBM Utilities. The 3 years’ working experience must be within the past 3 years timeframe;
• Have at least three (3) years' post graduate hands-on programming experience using DB2/SQL in COBOL for z/OS and CICS COBOL programs.

Company Overview

WSH Experts Pte Ltd, based in Singapore, delivers integrated industry services with innovative solutions. Our experienced team combines global expertise and local knowledge to support organizations with tailored, effective strategies and implementations.

Job Summary

Develop and customize Sitecore and .Net solutions to build scalable, secure, and high-performance web applications. Collaborate across teams to deliver quality code and optimize user experience using modern frameworks and APIs.

Responsibilities

• Build and customize Sitecore and .Net solutions to meet business requirements and enhance functionality
• Develop Sitecore forms and Sitecore JSS components with clean, maintainable code adhering to performance and reusability best practices
• Create and maintain applications using .Net MVC framework to support dynamic web features
• Manage data interchange between Sitecore web applications and external systems via APIs to ensure seamless integration
• Code front-end web components using React framework to deliver responsive and interactive user interfaces
• Design and develop scalable, cloud-based solutions with a focus on security and optimal performance
• Optimize web applications for maximum speed, scalability, and reliability under varying loads
• Adhere to organizational development standards and best practices to maintain code quality and consistency
• Communicate effectively and collaborate with cross-functional teams to deliver project goals and resolve technical challenges

Required competencies and certifications

• Bachelor’s degree in Computer Science, Information Technology, or a related field
• Minimum five (5) years of hands-on post-graduate experience in Sitecore and .Net development

Preferred competencies and qualifications

• Proficient with Sitecore 9 and above, including Sitecore forms and Sitecore JSS
• Skilled in HTML, CSS, ASP.NET Core, .NET Core, and C# for web-based application development
• Experienced in React and JavaScript frameworks for front-end development
• Familiar with Agile methodologies such as Scrum for iterative project delivery
• Knowledgeable in cross-browser development and troubleshooting techniques
• Experienced in implementing traditional, headless, and hybrid CMS architectures

Job Responsibilities:

• Code, modify, test, correct and document new and existing programs using assigned languages, tools and coding conventions;
• Prepare and document test data;
• Prepare and set up testing and production environment;
• Prepare and maintain program and system documentation;
• Assist in establishing file structures and processing logic requirements;
• Produce deliverables according to group standards and procedures;
• Assist Project Leaders in the study and design of application systems and work coordination, project management and user training work;
• Troubleshooting and supporting end-users in the implementation and maintenance of application systems;
• Train other contract programmers in the relevant skills;
• Participate in Disaster Recovery activities eg simulation exercise at Disaster Recovery sites;
• Learn / pick up new programming skills related to System Development and Maintenance as assigned by the supervisors;
• Any other tasks related to System Development and Maintenance as assigned by the supervisors.

Job Requirements:

(i) Shall have at least three (3) years’ post graduate experience in designing, programming, testing and maintaining a Lotus Notes workflow system (containing forms, views, navigators, script libraries, pages, outlines, images & agents), within the past 4 years timeframe, which is workable in:

a) Lotus Notes Client (version 9.xx and above)

b) Internet Explorer/Web Browser (when deployed with a Web UI front)

(ii) Shall have at least three (3) years’ post graduate experience, within the past 4 years timeframe, in designing, programming, testing and maintaining a Lotus Notes workflow system, within the past 4 years timeframe, using the following programming languages:

• LotusScript
• JavaScript
• Java
• HTML / XML
• Lotus Notes @Formula
• Lotus Notes SimpleAction

(iii) Be experienced in the application and implementation of Replication, Security and ACL settings in Lotus Notes applications.

(iv) Preferably have hands-on experience on:

• Secure web coding to prevent Domino web application vulnerabilities (e.g. Cross-site scripting; Injection vulnerability flaws such as SQL injection, command injection; Race conditions; Improper error / exception handling etc)
• jQuery coding and knowledge
• The management of Web Service Providers/Consumers and Jars in a Lotus Notes application
• Establishing connections between different data stores/platforms for interfacing (e.g. FTP, JDBC)

Job Responsibilities:

• Code, modify, test, correct and document new and existing programs using assigned languages, tools and coding conventions;
• Prepare and document test data;
• Prepare and set up testing and production environment;
• Prepare and maintain program and system documentation;
• Assist in establishing file structures and processing logic requirements;
• Produce deliverables according to group standards and procedures;
• Assist Project Leaders in the study and design of application systems and work coordination, project management and user training work;
• Troubleshooting and supporting end-users in the implementation and maintenance of application systems;
• Train other contract programmers in the relevant skills;
• Participate in Disaster Recovery activities eg simulation exercise at Disaster Recovery sites;
• Learn / pick up new programming skills related to System Development and Maintenance as assigned by the supervisors;
• Any other tasks related to System Development and Maintenance as assigned by the supervisors.

Job Requirements:

(i) Shall have at least three (3) years’ post graduate experience in designing, programming, testing and maintaining a Lotus Notes workflow system (containing forms, views, navigators, script libraries, pages, outlines, images & agents), within the past 4 years timeframe, which is workable in:

a) Lotus Notes Client (version 9.xx and above)

b) Internet Explorer/Web Browser (when deployed with a Web UI front)

(ii) Shall have at least three (3) years’ post graduate experience, within the past 4 years timeframe, in designing, programming, testing and maintaining a Lotus Notes workflow system, within the past 4 years timeframe, using the following programming languages:

• LotusScript
• JavaScript
• Java
• HTML / XML
• Lotus Notes @Formula
• Lotus Notes SimpleAction

(iii) Be experienced in the application and implementation of Replication, Security and ACL settings in Lotus Notes applications.

(iv) Preferably have hands-on experience on:

• Secure web coding to prevent Domino web application vulnerabilities (e.g. Cross-site scripting; Injection vulnerability flaws such as SQL injection, command injection; Race conditions; Improper error / exception handling etc)
• jQuery coding and knowledge
• The management of Web Service Providers/Consumers and Jars in a Lotus Notes application
• Establishing connections between different data stores/platforms for interfacing (e.g. FTP, JDBC)

Responsibilities
As a Full-Stack Engineer, you need to:

• Be responsible for designing, developing, deploying, and maintaining scalable, high-performance, and secure web applications. The role requires expertise in frontend and backend development, cloud technologies, DevOps automation, and application security. Engineers must work in an agile, DevOps-driven environment, ensuring high software quality, security, and maintainability.
• Take full ownership of end-to-end application development, integrating frontend, backend, and cloud infrastructure.
• Design, develop, and maintain responsive, accessible, and performant web applications.
• Implement modern frontend architectures, ensuring reusability, scalability, and security.
• Develop high-performance backend services and APIs, ensuring reliability, security, and observability.
• Work with Quality Assurance (QA) engineers to ensure automated test coverage and proactively fix bugs and defects.
• Optimize full-stack CI/CD deployment strategies, ensuring seamless and automated releases.
• Work with DevOps teams to automate infrastructure provisioning, monitoring, and cloud deployments.
• Ensure full-stack security, including authentication, authorization, API security, and frontend security best practices.
• Continuously evaluate and adopt emerging technologies to improve application performance and developer productivity.

Requirements
As a Full-Stack Engineer, you need to have:

• Degree/Diploma in Computer Science, IT, Engineering, or related field.
• Strong frontend & backend development experience; proficient with Git workflows.

Frontend:

• JavaScript/TypeScript; frameworks like React, Next.js, Vue, Angular, or Svelte
• Mobile: Swift, Kotlin, or React Native
• UI tools: Tailwind, Material-UI, Bootstrap; Figma for design

Backend:

• Node.js (Express/NestJS), Python (Django/Flask/FastAPI), Java/Kotlin (Spring Boot), Ruby on Rails, or Go
• APIs: REST, GraphQL, gRPC, WebSockets

Observability:

• APM tools (Datadog, New Relic, Prometheus, etc.)
• Logging (ELK, Loki); dashboards & alerts

Scalability & APIs:

• API design, caching (Redis), rate limiting
• Scaling strategies (load balancing, autoscaling)

DevOps & Cloud:

• CI/CD (GitHub Actions, Jenkins, etc.)
• Cloud (AWS, Azure, GCP)
• Docker, Kubernetes, IaC (Terraform, CloudFormation)

Security:

• Frontend (CORS, XSS), Backend (OAuth, JWT), Cloud (IAM, OWASP)

Testing:

• Unit & integration testing (Jest, Cypress, Postman, etc.)

Bonus:

• Low-code tools, micro-frontends, edge computing