Skills & stack
Languages
Java
Frameworks
Spring Boot
Tools & Infra
PostgreSQL
Skills
Multithreading
Spring Data JPA
Spring Security
About the role
Ailleron is hiring a Lead Java Developer to design and build backend components of a modern financial-sector platform, taking technical ownership of scalable, reliable backend systems.
Responsibilities
Design scalable, reliable backend systems; design database architecture and integration layers; plan and execute data migrations; make technical decisions on quality, performance and security; mentor developers and set coding standards; propose architectural improvements.
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A
Product
Warsaw Stock Exchange-listed fintech software provider based in Kraków, building digital and mobile banking platforms (LiveBank, AI Banking) for banks and leasing firms including Santander, ING and BN
- Location
- Kraków, Poland
Overview
- Seniority
- Senior–Lead
- Remote policy
- Remote
- Location
- Kraków, Poland
- Employment
- Full-time
- Posted
- Aug 08, 2026
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