Software Developer - TSB

Digital Services - Front Office; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

Certis is seeking a Platform Software Developer in Singapore to build and support its Security enterprise platform. You’ll work on full-stack web apps, microservices, and APIs with React/TypeScript and ASP.NET Core/C#.

The role emphasizes secure, scalable code and collaboration with architects, QA, and DevOps to deliver features from requirement to release. You will handle data services, real-time messaging, and integrations using PostgreSQL, Redis, NATS, Kafka, or RabbitMQ, plus OAuth2/OIDC and

Qualifications

• Experience with full-stack development across web apps and microservices.
• Strong knowledge of secure coding practices.
• Experience with cloud and on-prem deployments.

Responsibilities

• Develop and maintain web apps and microservices with React/TypeScript and ASP.NET Core/C#.
• Build REST APIs and real-time features for event-driven integrations.
• Create reusable capabilities across services to ensure scalability and maintainability.
• Work with PostgreSQL/SQL Server, Redis and messaging tech like NATS, Kafka or RabbitMQ.
• Implement OAuth2/OIDC authentication and RBAC security controls.
• Support Docker and Kubernetes-based deployments across cloud and on-premises.
• Write unit and integration tests and perform troubleshooting.
• Collaborate with architects, product owners, QA, and DevOps from design to release.
• Maintain API, configuration and technical docs.

Skills

React/TypeScript

ASP.NET Core

C#

REST APIs

PostgreSQL

Redis

Docker

Kubernetes

Security best practices

OAuth2/OIDC

Tools

NATS

Kafka

RabbitMQ

Job description

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.