Full Stack Software Engineer – Python​/FastAPI

Full Stack Software Engineer – Python/FastAPI

Location:

Plano, Texas (Onsite)

This role emphasizes full ownership of a FastAPI microservice integrated with an enterprise agentic AI platform. The position requires a self-sufficient full stack engineer with deep backend expertise who can identify scope, drive work independently, and deliver production-quality software. The successful candidate will own and lead the development, maintenance, and evolution of a core integration layer, designing and delivering both front-end and back-end components.

• Own 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, Type Script, HTML, and CSS.
• Integrate with relational and No
  
  SQL 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.
• Sserve 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.
• Proactively identify technical debt, architectural gaps, and new work streams, owning them through to completion.
• Implement observability and monitoring instrumentation to ensure operational health of owned services.

• Experience:
  
  4+ years of full stack software engineering experience.
• Expert-level Python with experience writing clean, production-ready, type-safe code.
• Hands-on experience with FastAPI and Pydantic for building and maintaining microservices.
• Proficiency in front-end development:
  React, Type Script, HTML, and CSS.
• Experience with Node.js and web server technologies (Apache or equivalent).
• 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, including familiarity with LLM-powered services.

• Experience with Lang Chain and/or Lang Graph 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 Lang Smith or similar LLM observability and tracing tools.
• Background in data pipelines, streaming, or batch processing.
• Experience in enterprise or financial services engineering environments.

Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including Clearly Rateds Best of Staffing® in Talent Satisfaction in the United States and Great Place to Work® in the United Kingdom and Mexico.

• Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection.
• We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure.
• Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan)
• Support Linc Employee Assistance Program (EAP) with up to 8 free counseling sessions
• Corporate discount savings program and other discounts
• In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to…