Senior Fullstack Java Developer
First seen by Alion on Sep 30, 2026.
Position: Senior Fullstack Java Developer / Tech Lead
Location: Poland
Working mode: 100% remote
About the Company
Our client is a Polish technology company delivering IT solutions and software platforms for the financial and public sectors. The company works on large-scale, business-critical systems where stability, security and long-term development are particularly important. Its projects combine complex backend systems, databases, integrations and modern web technologies. The organization is currently expanding its engineering teams and looking for experienced technical leaders who can take ownership of both technology and delivery.
About the Role
We are looking for a hands-on Tech Lead who can combine strong Java development experience with technical leadership. You will work with complex enterprise systems, take part in architectural decisions, and help the team understand and improve existing solutions. The role involves close cooperation with developers, analysts and business stakeholders, as well as supporting the team in solving more complex technical issues. You should be comfortable working with existing systems rather than only building new products from scratch.
Your responsibilities
Leading technical development within a software engineering team
Designing and reviewing application architecture and technical solutions
Hands-on development in Java and Spring
Working with enterprise systems, databases and integrations
Supporting developers with technical decisions and troubleshooting
Cooperating with analysts, business stakeholders and other technical teams
Identifying technical risks and helping resolve escalations
Taking part in code reviews and maintaining high engineering standards
Requirements
Several years of commercial experience with Java and Spring
Experience in designing software architecture and enterprise applications
Strong understanding of software development best practices
Experience with SQL and relational databases, preferably Oracle
Knowledge of Angular or similar frontend technologies
Ability to quickly understand complex existing systems
Experience in a technical leadership role or as a senior technical specialist
Good communication skills and ability to work with both technical and business stakeholders
What we offer
19,000-21,000 PLN per month + bonus
Employment based on UoP or B2B
100% remote work
Opportunity to work on large-scale, business-critical systems
Technically challenging projects and long-term cooperation
Collaboration with experienced technical and business teams