Senior Java Developer
First seen by Alion on Oct 4, 2026.
Unleash scalable Java enterprise solutions - leverage modern features to redefine backend performance!
Warsaw-based opportunity with hybrid work model (3 days at the office)
As a Senior Java Developer, you will be working for our client, a leader in financial industry, supporting large-scale enterprise projects that drive digital transformation. You will contribute to building secure, scalable, and high-performance backend solutions, utilizing cutting-edge Java features, microservices architecture to deliver mission-critical applications. Join us to shape the future of enterprise technology and grow your expertise in a dynamic, global environment.
Your main responsibilities:
Developing code by applying Software Craftsmanship best practices and quality standards
Understanding business requirements and defining technical solutions to implement them
Regularly delivering product increments
Working closely with development team located in Paris (remotely)
Applying release processes, and L1/L2/L3 support in case of production issue by applying technical fixes
Seeking the most appropriate solution to ensure security, scalability and efficiency
Analyzing errors and contributing to continuous improvement solutions
Participating weekend operations for resiliency tests, upgrades etc. (2-3 weekends per year)
You're ideal for this role if you have:
5+ years relevant experience in Java backend development
Experience working with Spring & Spring Boot frameworks
Familiar with and proficient in using Jenkins and Maven
- Comfortable working with relational databases and SQL
- Understand how web services and are familiar with monitoring tools like Logstash, Kibana and Elasticsearch (nice to have)
Agile & BDD practices knowledge
- Fluent in English (Polish or French will be an asset)
- Experience in finance and banking would be a big plus
#MAKEYourCareerBETTER
Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of personal data.