Senior Software Engineer (Java or Node.js)
-, Warszawa +4 Locations
Link Group
Key Responsibilities
Design, develop, and maintain APIs, backend services, and integrations using MuleSoft Anypoint.
Build scalable and secure backend applications in Java or Node.js.
Collaborate with product, architecture, and cross-functional teams to deliver end-to-end integration solutions.
Ensure seamless connectivity between enterprise applications, third-party systems, and cloud services.
Contribute to solution design, technical roadmaps, and best practices for API-led connectivity.
Optimize system performance, security, and reliability.
Qualifications
5+ years of professional software engineering experience.
Strong experience in backend development with Java or Node.js.
Proven expertise with MuleSoft Anypoint Platform (API design, implementation, deployment).
Hands-on experience with AWS Cloud services (e.g., Lambda, API Gateway, S3, ECS, RDS).
Solid understanding of API design principles (REST, SOAP, microservices).
Strong problem-solving skills and ability to design scalable solutions.
Excellent communication and collaboration skills.
Nice to Have
Familiarity with DevOps tools (Git, CI/CD pipelines, automated testing).
Knowledge of containerization (Docker, Kubernetes).
Exposure to other integration platforms or middleware solutions.
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