Senior Java Developer
22,500 - 27,720 PLN net B2B
About the project
The project involves the development and customization of a mobile banking platform delivered in a Software-as-a-Service (SaaS) model. The core product is a whitelabel mobile wallet solution offering secure, user-friendly, and feature-rich banking experiences out-of-the-box.
The project includes tailored customizations for individual clients. This includes the development of plugins and add-ons to extend core functionality, integration of standalone services via API, and customization of mobile applications to meet specific branding, UX, and functional requirements.
The architecture is modular, scalable, and API-first, enabling rapid deployment and adaptability to evolving market needs. The goal is to deliver a flexible mobile wallet solution that supports fast go-to-market strategies while allowing deep client-specific personalization.
Start date: September 2025
Contract duration: 7 months
Tasks
develop features according to provided requirements
design APIs
participate in defining requirements
integrate services with internal and third-party services
communicate with customers to clarify requirements
write unit tests
create project documentation
participate in code reviews
refactor code when appropriate
bugfixing
cooperate with project managers, developers, testers, and devopses
Must have
4+ years of experience with writing server side applications
expert knowledge of Java (minimum 8, we use the latest version)
good knowledge of Spring framework (we use Spring Framework 5 and Spring Boot 2)
experience with SQL (MySql, PostgreSQL)
advanced ability to design RESTful API
decent knowledge of HTTP protocol
ability to write clean, extensible and testable code
familiarity with distributed systems architecture
experience in GIT
knowledge of Mybatis
knowledge of Kotlin
experience with AWS (Elastic Beanstalk, ECS/ Fargate, Cloudfront, Cloudwatch)
very good command of written and spoken Polish (min. C1 level) and English (min. B2/C1 level)
Nice to have
familiarity with Containerisation (e.g. Docker)
experience with CI/CD tools
experience with NoSQL databases (ElasticSearch, MongoDB, DynamoDB)
experience with Message Brokers
experience working on fintech or banking projects, or in projects involving the development and customization of white-label products tailored to client-specific needs (including SaaS solutions)
experience working with international clients and/or in distributed teams (e.g., across different time zones)
experience in AI-powered code completion and assistance tools such as GitHub Copilot and Tabnine
proficiency in modern AI-enhanced IDEs, including JetBrains IDEs, Cursor and Trae
familiarity with AI-assisted test generation and debugging tools, such as Qodo
Perks & benefits
ambitious, creative, talented & highly experienced team
contributing to projects for clients all over the world
flexible working hours and a possibility to work remotely
Ready to join us?
Senior Java Developer
Hi there! We’re going to lead you through your recruitment journey. Our mission? Making the whole process as stress-free as possible. Keep calm and feel free to ask. We thank all applicants for their interest, however, we will only contact selected candidates in response to submitted applications.
Sylwia Szatara
HR & Recruitment Lead
Anita Kuźmik
Recruitment Specialist
All right, it’s done
We need some time to review your application. If we’re a perfect match, we’ll get in touch with you shortly.
Thank you!