About the Company:
The Client is a European tech consultancy operating in the SaaS and enterprise solutions sector.
They build large-scale modernization and automation projects using modern technologies such as Java, AI-assisted development, cloud platforms, and microservices architectures.
The team is international, innovation-driven, and remote-first, and they’re now looking for a Senior Java Engineer (AI-Assisted Modernization) to join them and support the next stage of growth.
Responsibilities:
Analyze and refactor a large-scale Java monolith (5M+ lines of code) into a microservices architecture
Design, implement, and maintain microservices and REST APIs
Integrate backend services with modern frontends (Vue.js 3)
Introduce and promote AI-assisted development practices (GitHub Copilot, Cursor)
Collaborate with architects, backend, and frontend teams to ensure cohesive solutions
Write and maintain automated tests, ensuring code quality and security standards
Participate in CI/CD processes and optimize delivery pipelines
Mentor junior team members and share best practices
Qualifications:
6+ years of experience as a Backend/Java Engineer
Proven track record of migrating monolithic systems to microservices
Strong proficiency in designing and implementing REST APIs
Experience integrating with modern frontend frameworks (Vue.js, React, Angular)
Hands-on practice with AI code assistants (GitHub Copilot, Cursor)
Knowledge of CI/CD tools (Azure DevOps, GitLab, Docker)
Strong communication skills and ability to work in distributed teams (English B2+)
Nice to have: Python + LangChain (AI pipelines), Kubernetes (AKS), SonarQube, automated API testing
Benefits:
B2B contract: 170–180 PLN/h (net)
Contract duration: minimum 6 months with extension option
Remote-first work model within CET ±2h time zone
Opportunity to modernize a large-scale enterprise system (monolith → microservices)
Work with cutting-edge AI-assisted development tools (Copilot, Cursor)
Transparent recruitment process with fast decision-making
Flexible working environment and experienced engineering team