Randstad Polska

backend developer for client-facing portals

In short

Backend developer role building and maintaining RESTful APIs and backend services for client-facing portals using Java or .NET, with containerized deployment and CI/CD integration. Posted by a staffing agency (Randstad Polska) for a hybrid position based in Warsaw. Requires strong Java or .NET experience, REST API design, containerization/orchestration, and solid SQL/database skills; domain experience in financial services or fund administration is a plus.

Description
No description provided.
Responsibilities
•Develop and maintain backend services and RESTful APIs using Java or .NET
•Design data models and integrate relational or NoSQL databases according to portal functionality
•Collaborate with front-end developers to define API contracts and ensure smooth integration
•Build and deploy services in containerized environments
•Implement secure coding practices, unit and integration testing, and CI/CD pipeline integration
•Optimize service performance, scalability, and reliability
•Troubleshoot and resolve production issues, participating in on-call and support rotations as needed
•Participate in Agile ceremonies, sprint planning, and technical design discussions
Requirements
•Strong Java or .NET development experience
•Experience building and consuming REST APIs
•Experience with containerized applications and orchestration
•Working SQL and database experience, including relational data modeling and query optimization
•Familiarity with CI/CD pipelines and automated testing practices
Nice to have
•Messaging and event-driven architectures
•Financial services, fund administration, transfer agency domain experience
•Cloud-native development practices
Conditions
•Location: Warsaw
•Contract stability
•High autonomy and independence
•Opportunity to participate in key projects
•International collaboration across business regions
•The job offer is intended for people over 18 years of age

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