Founding Backend Engineer | Python, LangGraph, AWS

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OB has partnered with an early-stage, venture-backed startup building AI agents for production data pipelines

They are looking for a Founding Backend Engineer to own and build their core systems. The role combines backend systems, product engineering and agentic workflows

Tech stack: Python, LangGraph, Next.JS, TypeScript, Rust, AWS, Terraform, Clickhouse

Key Requirements

  • 5+ years working on backend systems and distributed systems
  • Experience in an early-stage environment
  • Proven track record of shipping real products at high velocity

Competitive Salary Package + Equity

Hybrid work in Central London

Can offer Sponsorship for the right candidate!

#J-18808-Ljbffr”, “datePosted”: “2026-05-17”, “hiringOrganization”: { “@type”: “Organization”, “name”: “Oliver Bernard”, “sameAs”: “https://uk.whatjobs.com/pub_api__cpl__435488595__4861?utm_campaign=publisher&utm_medium=api&utm_source=4861&geoID=33” }, “jobLocation”: { “@type”: “Place”, “address”: { “@type”: “PostalAddress”, “addressLocality”: “London” } } }
Company: Oliver Bernard
Apply for the Founding Backend Engineer | Python, LangGraph, AWS
Location: London
Job Description:

OB has partnered with an early-stage, venture-backed startup building AI agents for production data pipelines

They are looking for a Founding Backend Engineer to own and build their core systems. The role combines backend systems, product engineering and agentic workflows

Tech stack: Python, LangGraph, Next.JS, TypeScript, Rust, AWS, Terraform, Clickhouse

Key Requirements

  • 5+ years working on backend systems and distributed systems
  • Experience in an early-stage environment
  • Proven track record of shipping real products at high velocity

Competitive Salary Package + Equity

Hybrid work in Central London

Can offer Sponsorship for the right candidate!

#J-18808-Ljbffr…

Posted: May 17th, 2026