Senior/Lead Python Developer (Guadalajara)

Project descriptionWe have an ambitious goal to migrate a legacy system written in HLASM (High-Level Assembler) from the mainframe to a cloud-based Java environment for one of the largest banks in the USA.ResponsibilitiesTroubleshoot, debug, and resolve issues in GenAI-powered code translation pipelines.Collaborate with dev and client teams to ensure alignment with project goals and deliver high-quality solutions.Build and maintain FastAPI-based microservices that orchestrate the migration workflow.Implement RAG (Retrieval Augmented Generation) systems using LangChain /Langgraph/LlamaIndex for contextual code understanding.Design stateful migration workflows using LangGraph/LangChain/LlamaIndex for complex multi-step transformations.Mandatory work from the office 5 days per week.SkillsMust haveProficiency in Python development (5+ years), with specific expertise in: FastAPI for building high-performance REST APIs and WebSocket connections, async programming patterns for handling con...