Senior Java Engineer - Fintech client

Senior Backend Engineer (Java) Hybrid | Advanced English | Relocation Available (within each country) Salary: Competitive, aligned to experience (Contractor model) One of LATAM's fastest-growing global Fintechs About the Opportunity We are partnering with one of the fastest-growing Fintech companies in LATAM-now global, hyper-scaling, and redefining the digital wallet and financial services ecosystem. This organization operates a high-volume, real-time transaction platform that impacts millions of users across several regions. This is not a traditional corporate environment. It's a true startup culture : * No hierarchies * High accountability * A team that embraces big challenges and builds fast * A leadership mindset to early stage growth: bold, ambitious, and constantly pushing boundaries If you are someone who loves complex problems, thrives in scalable architectures, and feels energized in fast-paced, non-comfortable environments, you will fit right in. What You'll Do As a Senior Backend Engineer, you will be a key contributor in designing and maintaining the core services that power the company's global financial ecosystem. You'll work on systems that move millions of dollars every day-requiring excellence, reliability, and deep technical judgment. You will: * Design, build, and maintain backend systems, APIs, and databases * Contribute to distributed systems and microservices architecture * Work closely with product and engineering teams to deliver high-quality solutions * Participate in high-impact architectural decisions * Ensure system performance, stability, and scalability * Continuously improve availability, latency, monitoring, and resilience Technical Requirements (Must-Have) * 7+ years working 100% with Java (mandatory) * Strong expertise in backend engineering for high-scale environments * Deep experience with PostgreSQL (design, optimization, performance tuning) * Hands-on experience with distributed systems & microservices * Strong understanding of cloud environments (AWS preferred) * CI/CD experience * Experience in Fintech, banking, or high-transactional environments is a strong plus * Advanced English (C1+) - mandatory * Valid work permit in the country where you apply (no cross-country relocation, but internal relocation is supported) Cultural & Personal Fit (Critical) We are looking for someone who is not only technically strong but also aligned with the company's culture. The right person is: * Highly proactive - doesn't wait to be told what to do * Curious, bold, and not afraid to propose new solutions * A problem-solver who simplifies complexity for technical and non-technical audiences * Collaborative * Someone who wants to grow with a company that is scaling at an absurd rate Benefits * Monthly budget to spend on activities with your team * Transportation support * Online Friday meditation * Training budget * Birthday day off + gift * Lunch at the office, and more! * Internal relocation bonus (country-specific) Ready to join one of the fastest-growing Fintechs in LATAM?