We are seeking a Lead Python Engineer to build a next-generation AI-powered financial assistant platform, rapidly iterating on chat, reporting, and bespoke interfaces used in investment workflows. You will own end-to-end delivery in a small, highly capable team and help shape product direction.ResponsibilitiesLead design and delivery of backend services for an AI-powered financial assistantDefine system architecture that balances quality, latency, reliability, and cost for AI featuresBuild production-grade APIs using Python and FastAPI with strong testing and observabilityImplement LLM-powered workflows with robust safeguards, validation, and failure handlingEstablish automated AI evaluations, test datasets, regression suites, and monitoring for model behaviorHarden applications with security controls for sensitive data, auditing, and access managementCollaborate with product and business users to refine requirements and ship iterative improvementsDrive code quality through reviews, standards,



and maintainable engineering practicesIntegrate AI-assisted programming and coding agents while critically validating generated codeTroubleshoot production issues with disciplined incident response and root-cause analysisGuide technical decisions in a low-process environment and keep delivery momentum highRequirements5+ years of professional software engineering experience with PythonStrong technical leadership and mentoring experience in senior engineering teamsProven system design experience for production backend services and APIsDeep FastAPI experience or strong experience with comparable Python web frameworksHands-on experience with AI-DLC and Gen AI assisted development workflowsStrong Large Language Models (LLM) application experience, including prompt design and integration patternsProven AI evaluation and quality engineering skills, including automated evals and regression testingStrong AI security knowledge, including privacy, access control, prompt-injection risks,

📌 Lead Python Engineer (México)
🏢 Epam Systems
📍 México