OutSystems Developer

APAR TECHNOLOGIES PTE. LTD.Singaporemycareersfuturepublished 10/01/2026
Must-have:JavaScriptHTMLCSSGitAzureFrontendMobileDevOpsAgileCI/CDAIHealthTechSecurity

Key Responsibilities

  • Develop and enhance responsive web and mobile applications using OutSystems, following the approved architecture, coding standards and reusable design patterns.
  • Translate user stories, process flows, wireframes and functional specifications into maintainable application components.
  • Build user interfaces, data models, business logic, validations, role-based access controls, timers and background processes.
  • Design, consume and troubleshoot REST and SOAP integrations with enterprise systems and external services.
  • Write and optimise SQL queries, aggregates and data access logic while maintaining data integrity and acceptable performance.
  • Perform unit testing, support SIT and UAT, and resolve defects within agreed sprint timelines.
  • Participate in peer reviews and use platform analysis tools to address code quality, security, performance and maintainability findings.
  • Support deployment and environment promotion activities, including release notes, deployment checks, rollback planning and post-release validation.
  • Investigate incidents and production issues, perform root-cause analysis, implement fixes and maintain clear technical documentation.
  • Contribute to sprint planning, estimation, stand-ups, demonstrations, retrospectives and continuous improvement.

Required Qualifications and Experience

  • Diploma or Bachelor degree in Computer Science, Information Systems, Software Engineering or a related discipline.
  • 2–4 years of professional software development experience, with hands-on delivery on the OutSystems platform.
  • Working knowledge of OutSystems Service Studio across interface, logic, data, integrations, security and deployment.
  • Experience developing Reactive Web applications; exposure to mobile or Traditional Web applications is useful.
  • Good knowledge of SQL and relational database concepts including entities, relationships, indexes, transactions and query optimisation.
  • Experience with REST APIs, JSON, authentication patterns and error handling; SOAP integration experience is an advantage.
  • Foundational front-end skills in HTML, CSS and JavaScript for UI customisation and troubleshooting.
  • Experience with Git or equivalent version control, Agile delivery practices and tools such as Azure DevOps or Jira.
  • Strong problem-solving, communication, documentation and teamwork skills.

Preferred Qualifications

  • OutSystems Associate Reactive Developer, Associate Developer ODC or equivalent certification.
  • Exposure to LifeTime, Service Center, AI Mentor Studio, Forge components and application monitoring.
  • Experience with Microsoft Azure and the wider Microsoft application platform.
  • Knowledge of CI/CD, automated testing, secure coding, IAM or single sign-on integration.
  • Experience supporting Singapore public sector, healthcare or financial services clients, including relevant security and clearance requirements.

EA Number: 11C4879