Platform Software Developer

About the role

Certis is looking for a Platform Software Developer to develop, enhance and support its Security enterprise platform. The role covers 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.

Key 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
• 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 code, including unit and integration tests
• Troubleshoot application, integration, database, messaging and deployment issues
• Take part in requirement refinement, technical design, code review, testing and release activities
• Collaborate with architects, product owners, QA, DevOps and project teams to deliver features from requirement through release
• Maintain API, configuration and technical documentation

Required profile

• 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 expected for senior developer level
• Hands-on experience building modern web applications, APIs or distributed enterprise systems
• Good understanding of software engineering principles, clean code, testing, source control and secure development
• Ability to turn business requirements into practical technical solutions
• Good communication, problem-solving and teamwork skills

Required 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 and messaging: REST/JSON APIs, NATS/Kafka/RabbitMQ or equivalent