Senior Backend Engineer
Remote role based in Poland with occassional visits to the office
Join Our Mission 🚀 Help ambitious founders scale their businesses through innovative financing solutions. We value curiosity, continuous learning, and impactful problem-solving.
Tech You’ll Use 🔧
- Core: Java 21, Spring Boot/Cloud 3.3
- Infra: GCP, Kubernetes
- Databases: SQL/NoSQL (picked per use case)
Your Impact ✍️
- Build secure microservices for financial systems.
- Own services end-to-end (design → deploy → monitor).
- Improve code quality with automation & modern practices (CI/CD pipelines in 15 mins).
- Stay ahead with cutting-edge tech and share insights.
- Thrive in a meetings-light, Kanban-driven team.
Why Uncapped?
- Create a fintech solution chosen by 1000s of businesses.
- Build a product you can help shape and have impact on.
- Backed by top VCs (LakeStar, SeedCamp, etc.).
Requirements
We Seek 🔍
- A minimum C1 level of English proficiency is required.
- Minimum 8 years of experience
- Passion for learning Java/Spring nuances.
- Testing expertise.
- Team player who values autonomy.
Benefits
Benefits 🍱
- Unlimited paid holiday
- Personal growth fund
- Macbook Pro
We can only consider applications from candidates who are eligible to work in Poland without requiring visa sponsorship.
About the Company
4dayweek.io is a job board dedicated to helping job seekers find roles at companies that offer a 4-day work week, 9-day fortnights, flexible schedules, and other reduced-hours policies. The platform lists thousands of jobs across various categories and locations, and verifies each company's schedule policy before listing. It also offers an optional Auto Apply feature (JobCopilot) that automatically applies to matching roles on behalf of users. The site features a database of 1,600+ companies offering reduced-hours and flexible schedules, with 737 of them having a verified 4-day work week policy.
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Senior Backend Engineer
Poland · remote · Aug 18, 2026