Python Developer

Full-Stack EngineerWe are seeking a dynamic and self-sufficient full-stack engineer to own and lead the development of a FastAPI microservice integrated with an enterprise agentic AI platform. This role emphasizes full ownership and autonomy in driving work independently and delivering production-quality software from day one.Location: within 50 miles of Plano, TX - 4 days on site mandatory in a weekPay Range: $70-$75/Hr.Applicants must be able to work directly for Artech on W2.Required Skills & Qualifications7+ years of full-stack software engineering experience.Expert-level proficiency in Python, with the ability to write clean, production-ready, type-safe code.Deep hands-on experience with FastAPI and Pydantic for building and maintaining microservices.Proficiency in front-end development using React, TypeScript, HTML, and CSS.Strong database skills across multiple paradigms: MongoDB, SQL (PostgreSQL/MySQL), and Redis.Demonstrated experience building, consuming, and owning RESTful APIs in production environments.Experience working on or integrating with AI applications — familiarity with LLM-powered services, AI APIs, or ML-driven features.Self-directed and autonomous — able to own a service end-to-end, define scope, identify what needs to be done, and execute without heavy oversight.Strong written and verbal communication skills; able to collaborate effectively across engineering and AI teams.Prior work experience at the client or in the client's industry.Preferred Skills & QualificationsExperience with LangChain and/or LangGraph for building or integrating agentic workflows.Familiarity with vector databases (e.g., Elasticsearch, Pinecone, Weaviate) and RAG patterns.Understanding of LLM behavior, prompt engineering, and context management.Experience with LangSmith or similar LLM observability and tracing tools.Background in data pipelines, streaming, or batch processing.Experience in enterprise or financial services engineering environments.Day-to-Day ResponsibilitiesOwn the full lifecycle of a FastAPI microservice: design, implementation, testing, deployment, and ongoing maintenance.Build and expose robust, well-documented RESTful APIs using FastAPI and Python, enforcing data contracts with Pydantic.Develop front-end interfaces and components using React, TypeScript, HTML, and CSS.Integrate with relational and NoSQL databases including MongoDB, SQL, and Redis for caching, persistence, and session management.Partner with AI engineers to incorporate LLM-driven features, agentic workflows, and AI model outputs into the microservice.Serve Node.js and/or Apache-backed services as part of a broader microservices ecosystem.Ensure secure, scalable, and maintainable architecture across all layers of the stack.Drive development across the full spectrum of service work: new feature development, performance optimizations, and technical debt remediation — balancing delivery velocity with long-term maintainability.Proactively identify technical debt, architectural gaps, and new workstreams — owning them through to completion.Implement observability and monitoring instrumentation to ensure operational health of owned services.