Senior Back End (Java) Engineer

Senior Back End (Java) Engineer The place where impact matters Apply now This is us At Avenga, we believe that human creativity empowers technology that matters. Operating globally, our 6000+ specialists provide a full spectrum of services, including business and tech advisory, enterprise solutions, CX, UX and Ul design, managed services, product development, and software development. This is the job You will build and stabilize the backend systems that power our product integrations. You’ll work on secure, high-load Java services, design reliable APIs, and contribute to system resilience during critical delivery and stabilization phases. This role is ideal for a senior engineer who values clean architecture, operational reliability, and building backend solutions that scale in real-world environments. This is you Strong Java expertise (17+), experience with Java 21 is a plus Spring Boot 3.x (REST controllers, exception handling, configuration) API development & integration: REST (OpenAPI/Swagger) and SOAP Data processing & integrations: XML parsing, XSD validation, large payload handling Idempotent and reliable backend processing Security awareness: mTLS fundamentals, secure handling of sensitive data, no PII logging Database experience: MS SQL Code quality & testing: clean code, unit and integration tests Operational mindset: logs, error handling, retries, system stabilization experience Nice-to-have skills: Experience working on enterprise or integration-heavy systems Familiarity with regulated or audit-sensitive environments This is your role Implement ICS backend components according to the defined system architecture Design and develop REST APIs and server-side integration logic Write stable, testable, and audit-ready code Participate in UAT support and system stabilization phases Analyze logs, errors, and retry scenarios to ensure system reliability What awaits you at Avenga? At Avenga, everyone matters. We provide equal opportunities in recruitment, career development, and leadership, regardless of race, ethnicity, gender identity, sexual orientation, disability, age, religion, or any other characteristic. We are committed to fostering a work environment where our diverse community of employees, candidates, and business partners actively shapes our growth. By bringing together people from different backgrounds and experiences, we build a workplace where everyone feels free to be themselves while honoring the boundaries of others. Locations Multiple locations Remote status Hybrid Technology Java Seniority Senior-level Your way in starts here APPLICATION Send us your application, we are ready to hear your story and explore how we can grow together. REVIEW Our team carefully reviews every application with curiosity and care. If your profile isn’t the right fit today, we will keep it in mind for future opportunities that match your skills and ambitions. TALENT ACQUISITION INTERVIEW You will meet our Talent team to talk about your goals and learn more about who we are, what we offer, and how we support our people. TECHNICAL INTERVIEW Our tech interview is all about diving deeper into your expertise and understanding your strengths, how you solve problems, and how you think – no trick questions, just a meaningful conversation. CUSTOMER INTERVIEW For some roles, especially when our clients are closely involved, you might also have a conversation with them – it’s a chance for everyone to align and get to know each other better. JOB OFFER If we both feel it’s the right match, we will send you an offer to join us. And even if it’s not the time just yet, you’ll always hear back from us. WELCOME! Your new team is excited to meet you, support you, and build something great together. Let’s make your first day the start of a journey that shapes a career that matters.