About The Role

Rumor is hiring for one of their clients, Wurknow, for a Senior Full Stack AI Engineer.

We are looking for a Senior Full Stack AI Engineer with 7+ years of software development experience. The ideal candidate should have strong experience in Python, PostgreSQL, React, and AI/LLM development.

The candidate will build a new AI product from the beginning, work closely with the leadership team, and later guide a small team of developers. This is a hands-on role, so the candidate should be comfortable coding daily and handling production issues.

Key Responsibilities

Build the AI agent backend using Python and FastAPI.
Work with LLMs, including prompts, tool/function calling, and structured outputs.
Design and maintain PostgreSQL databases, queries, indexes, and migrations.
Build user interfaces using React and TypeScript.
Integrate the AI agent with internal APIs and third-party services.
Use AI coding tools such as Claude Code, Cursor, or GitHub Copilot to improve development speed and productivity.
Guide and mentor 1–3 developers through code reviews, planning, and technical guidance.
Make technical and architecture decisions and explain them clearly to product and leadership teams.
Set up and maintain testing, CI/CD, logging, and monitoring.
Monitor the production system and handle technical issues and incidents.
Track AI performance, response quality, speed, and usage costs.
Improve prompts and AI logic as models and requirements change.
Follow secure coding practices and protect customer and personal data.
Continue developing new features and improvements after the product goes live.

Required Skills

7+ years of professional software development experience.
1–2+ years of experience building and supporting AI/LLM features in production.
Strong experience with Python and backend API development.
Strong knowledge of PostgreSQL, database design, SQL, indexing, and performance tuning.
Good experience with React and TypeScript.
Strong understanding of LLMs, prompt design, tool/function calling, retries, rate limits, and handling incorrect AI responses.
Experience using AI coding tools such as Claude Code, Cursor, or Copilot.
Experience leading or mentoring developers while continuing to code hands-on.
Experience supporting production applications, including monitoring, incident handling, and root-cause analysis.
Good written and spoken English.

Preferred Skills

Experience with RAG, embeddings, and pgvector.
Experience with LangGraph, Claude Agent SDK, or MCP.
Experience with LLM testing, monitoring, and cost management.
Knowledge of Microsoft Azure, Docker, and CI/CD.
Experience with multi-tenant SaaS applications.
Experience in staffing, HR tech, payroll, or workforce management.
Knowledge of SOC 2 or similar security and compliance standards.

Senior AI Agent Engineer