Outsystem Developer

RAPSYS TECHNOLOGIES PTE. LTD.; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

RAPSYS TECHNOLOGIES PTE. LTD. seeks an experienced OutSystems full-stack engineer to design, build, and maintain scalable applications in a cloud environment. You will work across backend and frontend layers, integrate REST/SOAP services, and ensure secure, compliant production systems.

Proficiency in C#/.NET, JavaScript/TypeScript, HTML5, CSS3, and SQL Server is required, with hands-on experience in deployment, observability, and incident response in a regulated setting.

Qualifications

• OutSystems - minimum 4 years of hands-on experience.
• OutSystems architecture, LifeTime, Service Center, deployment and environment management.
• Strong full-stack engineering background.
• C# / .NET proficiency.
• JavaScript / TypeScript, HTML5, CSS3, React or Vue.
• Microsoft SQL Server expertise.
• REST / SOAP API integrations experience.
• AWS / GCC or equivalent cloud environment familiarity.
• IIS / Windows Server administration.
• Git / CI/CD / automated testing experience.
• Monitoring, logging, observability and production incident support.
• Security, authentication, authorisation, encryption and audit logging.
• Strong troubleshooting across application, database, integration and infrastructure layers.
• Experience supporting production systems, legacy modernization, government/regulatory environments, cloud infra and compliance.

Skills

OutSystems

C# / .NET

JavaScript / TS

HTML5

CSS3

React

Vue

SQL Server

REST / SOAP

AWS / GCC

IIS / Windows

Git / CI-CD

Monitoring

Security

Troubleshooting

Prod support

Tools

OutSystems

LifeTime

Service Center

CI/CD tooling

Job description

Key Technical Requirements

• OutSystems - minimum 4 years
• OutSystems architecture, LifeTime, Service Center, deployment and environment management
• Strong full-stack engineering background
• C# / .NET
• JavaScript / TypeScript, HTML5, CSS3, React or Vue
• Microsoft SQL Server
• REST / SOAP API integrations
• AWS / GCC or equivalent cloud environment
• IIS / Windows Server
• Git / CI/CD / automated testing
• Monitoring, logging, observability and production incident support
• Security, authentication, authorisation, encryption and audit logging
• Strong troubleshooting across application, database, integration and infrastructure layers
• Experience supporting production systems, legacy modernisation, government / regulated environments, cloud infrastructure and compliance will be highly relevant.