Software Developer

13 hours ago

singapore Certis Full-time
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Life at Certis

Duties & Responsibilities

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. Skills & Experience

Technical Skills

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. Qualifications & Experience

Degree or diploma in Computer Science, Software Engineering, Information Technology or a related discipline, or equivalent practical experience. 3+ 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.