Summary: Lead Python Engineer with React to own backend delivery, guide technical decisions, integrate LLM/AI agents on AWS, and shape reliable multi-environment architectures. Highlights: 1. Lead delivery of an enterprise-grade AI platform 2. Coach and mentor the team on backend engineering practices and AI integration 3. Design and iterate on distributed systems with emphasis on architecture We are building an advanced AI platform and need a **Lead Python Engineer with React** to own backend delivery and guide key technical decisions. You will integrate LLM/AI agents on AWS, shape reliable multi\-environment architectures, and help the team ship production\-ready features—apply now. **Responsibilities** * Lead delivery of an enterprise\-grade AI platform built with Python and AWS * Define architecture choices that keep production reliable across multi\-environment deployment pipelines * Coach and mentor the team on backend engineering practices and AI integration * Integrate large language models into applications with strong prompt engineering and agent delegation * Manage cloud infrastructure as code using AWS CDK * Design and iterate on distributed systems with an emphasis on system architecture * Perform code reviews and drive reduction of technical debt * Build CI/CD pipelines with GitHub Actions and Docker * Ensure quality and performance via testing strategies and load testing **Requirements** * Proven 5\+ years of experience with Python (3\.11\+), including async/await patterns and Pydantic data modeling * Advanced expertise in FastAPI for delivering production REST APIs * Solid background in LLM/AI agent engineering, ideally with Anthropic Claude * Hands\-on knowledge of AWS Cloud Services, including EKS, RDS, and S3 * Strong proficiency in SQL and data\-layer technologies such as SQLAlchemy and PostgreSQL * Practical experience with AWS Bedrock \& AgentCore for managed LLM hosting * Demonstrated ability to build CI/CD pipelines and contribute to system design * Proven technical leadership skills with a track record of mentoring engineers * Upper\-Intermediate English proficiency (B2\) **Nice to have** * Experience building modern frontend apps with React \+ TypeScript * Familiarity with pytest\-based testing strategies and E2E testing tools * Knowledge of LLM observability and evaluation tooling such as Langfuse * Understanding of OpenTelemetry \& Datadog for distributed tracing * Experience with security and compliance tools like SonarQube and Snyk