Onlano
Backend DevelopmentOnsite

Lead Backend Engineer

Harrington Starr - Company

London, UK, ๐Ÿ‡ฌ๐Ÿ‡ง United KingdomFull-time - Lead (7-10 years)0 applicantsCloses Jun 16, 2026

Salary

GBP 85,099 - 85,099 / year

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Job description

Job details

  • Location: London, UK
  • Work mode: Onsite
  • Employment type: Full-time (Not an internship)
  • Salary: GBP 85,099 per year

Role overview

Join Harrington Starr, a fast-growing AI startup, as a Lead Backend Engineer to build and scale the infrastructure powering their next-generation AI operations platform. This role offers the chance to work with cutting-edge technologies like Node.js, TypeScript, and AI/LLM integration while leading a team in a high-growth environment.

Job details

This permanent, full-time role is based in London, UK and offers an annual salary of ยฃ85,099. The position is onsite and not an internship. Youโ€™ll collaborate with early-stage teams to design scalable systems and integrate advanced AI capabilities into production-grade applications.

Responsibilities

  • Design and scale backend infrastructure for AI operations platforms
  • Lead development of APIs, microservices, and cloud-native architectures
  • Integrate AI/LLM solutions into production systems
  • Collaborate with cross-functional teams on technical roadmaps
  • Optimize system performance and reliability

Requirements

  • 7+ years leading backend development with Node.js/TypeScript
  • Expertise in PostgreSQL and cloud infrastructure (Docker/Kubernetes)
  • Proven experience with AI/LLM integration in production environments
  • Strong leadership of engineering teams in startup environments
  • Deep understanding of API design and microservices architecture

Benefits

  • Competitive salary with equity options
  • Work with cutting-edge AI technologies
  • Collaborative startup culture with growth opportunities

Keywords

Node.jsTypeScriptPostgreSQLDockerKubernetesAI/LLMMicroservicesAPIs