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Senior Backend Engineer at Uncapped. Hybrid based in London or Warsaw, or fully remote from Europe or the UK.. 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.).. 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.. Happy to come to the office twice a week. Company Location: United Kingdom.