Role Summary
The Platform Software Developer is responsible for developing, enhancing and supporting Certis’ Security enterprise platform. The role involves full-stack development across web applications, microservices, APIs, real-time messaging, integrations and data services, with a strong focus on secure, scalable and maintainable software.
Responsibilities
Develop and maintain web applications and microservices using React/TypeScript and ASP.NET Core/C#.
Build REST APIs, backend services, real-time features and event-driven integrations.
Develop reusable capabilities across services and modules, ensuring consistency, scalability, and maintainability across the platform.
Work with PostgreSQL/SQL Server, Redis and messaging technologies such as NATS, Kafka or RabbitMQ.
Implement authentication and authorization using OAuth2/OIDC, RBAC and secure coding practices.
Support Docker and Kubernetes-based deployments across cloud and on-premises environments.
Write clean, testable and maintainable code, including appropriate unit and integration tests.
Troubleshoot application, integration, database, messaging and deployment issues.
Participate in requirement refinement, technical design, code review, testing and release activities.
Work closely with architects, product owners, QA, DevOps and project teams to deliver features from requirement through release.
Maintain relevant API, configuration and technical documentation.
Technical Skills
Frontend: React, TypeScript/JavaScript, Material UI (MUI) or similar modern UI frameworks.
Backend: C#, ASP.NET Core, Web API and asynchronous/service-based development.
Database: PostgreSQL and/or SQL Server; knowledge of Redis.
Integration & Messaging: REST/JSON APIs, NATS/Kafka/RabbitMQ or equivalent messaging technologies.
Platform: Docker, Kubernetes, Git and CI/CD pipelines.
Security: OAuth2, OpenID Connect, equivalent IAM, RBAC and API security.
Observability: Familiarity with logging, monitoring and tools such as Grafana, Prometheus, ELK/Loki or CloudWatch.
Requirements
Degree or diploma in Computer Science, Software Engineering, Information Technology or a related discipline, or equivalent practical experience.
3 to 5 years of professional software development experience for Developer level; stronger independent design and troubleshooting capability is expected for Senior Developer level.
Hands-on experience developing modern web applications, APIs or distributed enterprise systems.
Good understanding of software engineering principles, clean code, testing, source control and secure development practices.
Ability to understand business requirements and translate them into practical technical solutions.
Good communication, problem-solving and teamwork skills.
Employer questions
- Which of the following statements best describes your right to work in Singapore?
- What's your expected monthly basic salary?
- How many years' experience do you have as a Software Developer?
- Do you have experience using C#.NET Programming Language?
Company profile
Certis is a leading outsourced services partner that designs, builds and operates multi-disciplinary smart security and integrated services. Our multi-service offerings leverage our strong heritage in security, and are augmented by applied AI solutions. These solutions are part of our comprehensive technology development and systems integration capabilities that are fully cyber secure by design.
Certis is headquartered in Singapore, with an international presence that extends to Australia and Qatar.