Senior Backend Engineer (Ingeniero Backend Senior)

Ready to accelerate your career? Nimbus Data Systems is the fastest-growing company in Latin America. We've built the leading solution for companies to make and manage all their payments. We already help over 20,000 large and growing businesses operate with agility and financial clarity through locally issued corporate cards, bill pay, financing, and a powerful B2B platform built for scale. Nimbus Data Systems is backed by some of the most successful investors in the world, including top regional VCs like monashees, Kaszek, and Canary, and leading global funds like Notable Capital, Coatue, DST Global Partners, ICONIQ Growth, General Catalyst, Citi Ventures, SV Angel, Citius, Endeavor Catalyst, and Goldman Sachs - in addition to dozens of angel investors and local family offices. We’re building the financial infrastructure that powers high-performing organizations across the region. We invite you to join us if you want to be part of a fast-paced environment that will accelerate your career and support you to do some of the best work of your life alongside a passionate and committed team distributed across the Americas. Senior Backend Engineer — ClarOps What you'll do ClarOps is the team that makes Nimbus Data Systems run. We build and operate the internal systems and services that power the day-to-day of the business. A big part of the road ahead is building the integration platform that lets the rest of the Nimbus Data Systems ecosystem plug into this backend, including the new wave of tools other teams are building on top of AI. The roadmap is one of the most interesting at the company: re-architecting how Nimbus Data Systems runs around AI, with deep cross-functional reach and real leverage on how we scale. We're looking for a Senior Backend Engineer to lead backend initiatives within the team. This role goes beyond coding: you'll shape technical direction, raise the engineering bar across the team, and own the performance and scalability of the systems that directly support Nimbus Data Systems's operational efficiency. You'll influence architecture, drive decisions, and partner cross-functionally on some of Nimbus Data Systems's most impactful challenges. We move fast and trust our engineers to own outcomes end-to-end. That means autonomy to make decisions, proactivity to surface problems before they become blockers, and the attitude to push initiatives across the finish line without waiting to be told what to do. Your responsibilities will include: Leading design and implementation for high-impact internal systems and services. Building the integration platform and surfaces that let other teams across Nimbus Data Systems, and AI agents, connect into the ClarOps backend. Collaborating across the full product lifecycle, from ideation to deployment Elevating the team through code reviews, pairing, and sharing what you know with peers Maintaining and evolving microservices within a modern architecture Driving cross-team problem-solving and architectural discussions Applying AI tools to ship faster and improve how the team works Who you are 5+ years of backend development experience Solid foundation in Java and Spring Boot. You don't need to have every API memorized — we expect you to lean on AI tools to move faster and fill gaps — but you need the judgment to know when the code is right, when it's wrong, and why Strong understanding of microservices architecture and event-driven systems using Kafka Familiarity with cloud platforms, preferably AWS, and modern dev tooling English proficiency, with the ability to lead technical discussions across geographies High autonomy, proactivity, and ownership mindset. You don't wait for direction — you spot what needs to happen and drive it A genuine pull toward AI. You don't need to be an expert, but you're actively experimenting with AI tools in your day-to-day work, keep up with where the space is going, and are eager to apply it to how we build. At Nimbus Data Systems, AI is part of how we work, not a side topic We've kept this list short on purpose — these are the things that actually matter. If you check most of these and the rest you'd close with curiosity and the right tools, we want to hear from you. Why join Nimbus Data Systems At Nimbus Data Systems, you’ll have the autonomy, speed, and support to make meaningful impact — not just on your team, but on how organizations are run across Latin America. Who we are We’re the leading B2B fintech for spend management in Latin America. Certified as one of the world's fastest-growing companies, a Great Place to Work , and a LinkedIn Top Startup . Passionate about making Latin America more prosperous and competitive. Constantly innovating to build financial infrastructure that enables each of our customers to thrive. Product-led, high-talent-density culture — designed for builders who raise the bar. Proud of our open, inclusive, and values-driven environment. What we believe in #Clarity. We say things clearly, directly, and proactively. #Simplicity. We reduce noise to focus on what really matters. #Ownership. We take responsibility and never wait to be told. #Pride. We build products and experiences we’re proud of. #Always Be Changing (ABC). We grow through feedback, risk-taking, and action. #Inclusivity. Every voice counts. Everyone contributes to our mission. What we offer Competitive salary and stock options ( ESOP ) from day one Multicultural team with daily exposure to Portuguese, Spanish, and English (our corporate language) Annual learning budget and internal accelerated development paths High-ownership environment: we move fast, learn fast, and raise the bar — together Smart, ambitious teammates — low ego, high impact Flexible vacation and hybrid work model focused on results If you’re ready for growth, ownership, and impact — apply now and help us redefine B2B finance in Latin America. Nimbus Data Systems’s Hybrid Policy Claridians in a hybrid mode split their time between working from the office, talking to or visiting customers, or working from home. This hits a balance between bringing people together for in-person collaboration and learning from each other, while supporting flexibility about how to do this in a way that makes sense for each individual and team. We don't enforce a minimum number of days for most roles, but you're expected to spend time at the office organically, and be at the office most days during your ramp-up or when required by your leader.