Outsystems Developer

Optimum Solutions Pte Ltd; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Optimum Solutions Pte Ltd is seeking an experienced Low Code Engineer to develop and operate secure OutSystems applications for a Singapore public sector client. You will design, implement and maintain integrations using APIs, SFTP and other technologies, while ensuring security and governance.

The role requires 4+ years in OutSystems and general software engineering, with strong C#/.NET, SQL Server, REST/SOAP experience and familiarity with AWS, CI/CD and IaC.

Qualifications

• At least 4 years of experience developing and maintaining applications using OutSystems.
• At least 4 years of professional software engineering experience with full-stack development.
• Strong knowledge of C# and .NET, including backend services and API development.
• Experience with Microsoft SQL Server and complex queries; production troubleshooting.
• Experience with REST, SOAP or other API integration technologies.
• Experience supporting applications on AWS, with knowledge of IIS and Windows Server.
• Familiarity with Git, CI/CD, automated testing, monitoring, IaC.

Responsibilities

• Design, develop and maintain secure, scalable OutSystems applications and integrations.
• Translate business requirements into technical solutions and contribute to architecture and reviews.
• Manage OutSystems environments across development, testing and production.

Skills

OutSystems

C#/.NET

Full-stack development

REST/SOAP APIs

AWS

CI/CD

Git

Security & compliance

Troubleshooting

Tools

OutSystems LifeTime

OutSystems Service Center

IIS

Windows Server

SQL Server

Job description

Our client is a Singapore public sector agency seeking an experienced Low Code Engineer to develop, maintain and operate secure, reliable digital applications using the OutSystems platform.

Location: Novena

Responsibilities

• Design, develop and maintain secure, scalable OutSystems applications and integrations using APIs, SFTP and other integration technologies.
• Translate business requirements into maintainable technical solutions, contributing to application architecture, technical design and code reviews.
• Manage OutSystems environments across development, testing and production, including deployments, upgrades, migrations and environment configuration.
• Troubleshoot application, workflow, timer, integration, database and platform issues; support production incidents, conduct root cause analysis and implement preventive measures.
• Build, maintain and troubleshoot applications hosted on AWS/GCC infrastructure, including IIS, Windows Server, SQL Server and related networking components.
• Improve engineering practices through CI/CD, automated testing, monitoring, logging, observability and operational automation.
• Uphold security, compliance, backup, patching and disaster recovery standards while promoting maintainable code, documentation and platform governance.
• Collaborate with product managers, engineers and other stakeholders to balance technical quality, business priorities and operational requirements.
• Explore and implement AI capabilities or integrations where appropriate.

Requirements

• At least 4 years of experience developing and maintaining applications using OutSystems, with a strong understanding of its architecture, LifeTime, Service Center and deployment processes.
• At least 4 years of professional software engineering experience, with sound knowledge of application architecture, design principles and full-stack development.
• Working knowledge of C# and .NET, including backend services and API development.
• Strong experience with Microsoft SQL Server, including data modelling, complex queries, performance optimisation and production troubleshooting.
• Experience with REST, SOAP or other API integration technologies.
• Experience supporting applications on AWS, GCC or equivalent cloud platforms, with knowledge of IIS, Windows Server, networking, high availability and disaster recovery.
• Familiarity with Git, CI/CD, automated testing, monitoring, logging, production incident management and Infrastructure as Code (IaC).