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Backend Developer

Randstad Polska — Poland · Posted ~11 hours ago

Skills

Java .NET object-oriented programming REST APIs backend services relational databases NoSQL databases Docker Kubernetes OpenShift secure coding unit testing integration testing CI/CD performance optimization scalability troubleshooting REST SQL NoSQL

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Summary ✨ AI‑Generated

A backend development role focused on designing robust services and REST APIs for customer-facing applications. You will work with Java or .NET, relational and NoSQL databases, containerized environments, and cloud-native deployment. Responsibilities include API design, secure coding, automated testing, CI/CD integration, performance optimization, and production troubleshooting while collaborating closely with front-end engineers.

Highlights

Build and maintain scalable backend services and APIs, work closely with front-end teams, and contribute to cloud-native delivery. The role combines modern containerization, secure engineering, testing, CI/CD, and performance optimization.

Description

We are seeking a Backend Developer to design, build, and maintain robust, scalable backend services and APIs powering Client facing Portal applications. The ideal candidate has strong object-oriented development skills, experience with containerized/cloud-native deployment, and the ability to collaborate closely with front- end teams to deliver well-integrated, performant solutions. What will your tasks involve? Develop and maintain backend services and RESTful APIs using Java or .NET.Design data models and integrate with relational/NoSQL databases as required by portal functionality.Collaborate with front-end developers to define API contracts and ensure smooth integration.Build and deploy services within containerized environments (Docker/Kubernetes/OpenShift).Implement secure coding practices, unit/integration testing, and CI/CD pipeline integration.Optimize service performance, scalability, and reliability.Troubleshoot and resolve production issues, participating in on-call/support rotations as needed.Participate in Agile ceremonies, sprint planning, and technical design discussions. What we expect from you? Strong Java or .NET development experience (Spring Boot / .NET Core preferred).Experience building and consuming REST APIs.Experience with containerized applications and orchestration (Docker/Kubernetes/OpenShift).Working SQL/database experience (relational data modeling, query optimization).Familiarity with CI/CD pipelines and automated testing practices.Nice-to-Have: experience with messaging/event-driven architectures (Kafka, MQ, etc.), financial services, fund administration, or transfer agency domain experience, exposure to cloud-native development practices. What you can expect from us? Contract StabilityHigh level of autonomy and independenceSenior role: The chance to act as a Backend DeveloperParticipation in key projectsInternational collaboration: Building and cultivating partnerships across various business regions Employment agency entry number 47 this job offer is intended for people over 18 years of age