Senior Java Software Engineer

Expected, Java, Spring, Spring Boot

Operating system, Windows

Your responsibilities, Design, develop, and maintain cloud-based applications using Java., Review proposed solutions to ensure alignment with CTO Platforms objectives and standards., Champion high standards in software engineering, including code quality, security, and maintainability., Deliver comprehensive automated testing (unit, integration, and regression) as part of every change., Approach technical challenges with an open, collaborative mindset., Take initiative to improve developer experience and efficiency., Provide guidance, coaching, and technical support to less experienced colleagues.

Strong written and verbal communication skills, with business-level English and the ability to engage diverse stakeholders., Strong software engineering fundamentals with a polyglot mindset; ability to deliver in multiple languages and ecosystems., Experience with Java and frameworks such as Spring/Spring Boot (desirable but not essential; candidates strong in other languages and motivated to learn Java are welcome)., Strong grasp of functional, non-blocking, and asynchronous programming; familiarity with modern concurrency models and reactive approaches., Experience with security software and exposure to secure engineering practices (desirable)., Hands-on cloud experience: designing, building, and operating workloads in the cloud., Strong testing approach: applying the right testing techniques (unit, integration, contract, end-to-end)., Performance testing knowledge (nice to have): familiarity with performance test design, execution, and result interpretation., API security at scale (beneficial): knowledge of securing high-volume APIs, including authentication, authorization, and threat mitigation., High attention to detail: consistent focus on quality, accuracy, and maintainability.

What we offer, Location –Kraków; work model – hybrid, Stable and long-term cooperation, Well-defined career path at the European leader in engineering & IT consulting, Opportunity to relocate and work in different ALTEN Polska branches, After completion of the project, opportunity to engage in a subsequent one within the company, Introduction and cooperation with dedicated Competences Manager, Access to professional certifications with our technology partners (e.g. Google, ISTQB), Access to relevant industry events, Access to the Knowledge Sharing Program, Access to Referral program

This is how we work on a project, functional tests, testing environments

Benefits, life insurance, retirement pension plan, baby layette, employee referral program, Medicover medical care, Medicover dental care, Medicover Benefits platform, Medicover Sport card

NOTICE: We kindly inform you that we will contact the selected candidates.

ALTEN Polska, WHO ARE WE?, , WE ARE A WORLD LEADER IN ENGINEERING AND IT SERVICES., , At ALTEN, we see our specialists as architects – today’s designers of tomorrow’s world., , As a leader in Engineering and IT Services, we support companies in their technological and sustainable transformation., , OVER 57,400 EMPLOYEES IN 30+ COUNTRIES, TO SUPPORT MORE THAN 6,500 CLIENTS WORLDWIDE., , We operate in all sectors: Aeronautics, Space, Defence, Security & Naval, Automotive, Rail & Mobility, Energy & Environment, Life Sciences & Health, Industrial Equipment & Electronics, Telecoms, Banking, Finance & Insurance, Retail, Services & Medias, Public Services & Government., , We carry out complex and highly technical projects throughout the value chain of the most prestigious companies worldwide., , Our motto: Building Tomorrow’s World Today!