Founding Applied AI Engineer (Agentic Systems)

Company: Weekday
Apply for the Founding Applied AI Engineer (Agentic Systems)
Location: London
Job Description:

This role is for one of our clients

Location: London (On-site)

Experience: 3–10 years

Stage: Seed → Series B

Role Type: Early hire / founding engineer

Why This Role Exists

You’ll build the next generation of production-grade AI systems — agents that reason, act, and operate reliably in messy, real-world environments.

What You’ll Do

  • Design and ship agentic AI systems
  • Build RAG pipelines and tool-using agents
  • Deploy and monitor LLM workloads in production
  • Focus on evaluation, reliability, and safety
  • Integrate AI into core product workflows
  • Work closely with founders and customers

What We’re Looking For

  • Experience shipping AI systems to real users
  • Deep familiarity with agents, RAG, orchestration
  • Python-first
  • Production ML / LLM operations experience
  • Comfort operating in early-stage environments

Nice to Have

  • LangGraph / Temporal / orchestration frameworks
  • Vector databases
  • HIPAA / SOC-2 systems
  • Terraform / Kubernetes
  • Edge or real-time AI systems

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Posted: April 11th, 2026