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Agent Engineer at CloudWalk. Location Information: Brazil. About CloudWalk:. We are not just another fintech unicorn. We are a pack of dreamers, makers, and tech enthusiasts building the future of payments. With millions of happy customers and a hunger for innovation, we're now expanding our neural network - literally and metaphorically.. About the role: . You'll be architecting AI agents that handle real-world financial transactions at scale, building autonomous systems that need to be both intelligent and bulletproof. We're not looking for another "AI specialist" to check boxes—we're building something audacious: digital intelligence from the ground up. Whether you're passionate about applied machine learning, obsessed with robust agent architectures, or skilled in building high-performance distributed AI systems. If you dream in intelligent solutions and see autonomous agents as art, this is your canvas.. What You'll Actually Be Doing. Build & Ship:.  Develop, test, and deploy backend features and APIs in Elixir, ensuring code serves millions of users safely and efficiently.. Craft Experiences:.  Design reliable backend systems and intuitive APIs that make complex financial operations robust and seamless for our customers.. Solve & Optimize:.  Investigate and resolve issues while continuously improving performance, concurrency, and scalability across our distributed systems.. Collaborate & Plan:.  Participate in feature planning, estimation, and scoping alongside product and engineering teams to deliver impactful solutions.. Mentor & Learn:.  Review pull requests, pair program with teammates, and contribute to our engineering culture of continuous improvement.. Who We Need. Engineering Excellence:.  Python mastery is expected, flexibility with other languages as well.. Deployment Warrior:.  You don't just build – you ship. CI/CD, infrastructure, and keeping complex AI systems running in production are second nature to you.. Problem Obsessed:.  You don't clock out when things get difficult. You're the type who loses sleep over unsolved puzzles and wakes up with solutions.. Framework Fluent:.  Experience with RAG pipelines, LangChain/LangGraph, and integration with major LLM providers (OpenAI, Anthropic, Google) isn't just preferred – it's required.. Bullshit Allergic:.  You value direct communication, tangible results, and spend zero energy on corporate theater.. Portuguese Fluency:.  Fluent Portuguese communication isn't optional – our agents work with Portuguese-language data and clients daily. You need to think, debug, and communicate seamlessly in Portuguese.. Why Cloudwalk?. Real Autonomy:. We hire smart people and get out of their way. Your ideas won't die in committee.. Elite Team:. Work with a compact group of brilliant engineers who share your intensity and distaste for the conventional.. Actual Impact:. Your code won't be gathering dust in some repository – it will reshape how financial systems operate, starting in Brazil and expanding globally.. Join us at CloudWalk, where we’re not just engineering solutions; we’re building a smarter, AI-driven future for payments—together.. By applying for this position, your data will be processed as per CloudWalk's Privacy Policy that you can read . here in Portuguese.  and . here in English.