Motorway

Principal Engineer

Motorway
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1 day ago
London, United KingdomStaff+

Responsibilities

  • Set technical strategy across multiple product areas and make evidence-based recommendations to leadership.
  • Identify and resolve cross-cutting architectural risks before they affect scalability.
  • Define engineering standards, architectural patterns, documentation norms, and technical recommendations.
  • Raise reliability, observability, security, production-readiness, SLO, incident-management, and threat-modeling standards.
  • Lead adoption and evaluation of LLMs and AI agents for software engineering and technical debt modernization.
  • Develop staff engineers and technical leads and increase leadership capacity across the organization.
  • Own the engineering relationship with AWS, including architecture reviews, early-access programs, and service adoption decisions.
  • Represent Motorway at AWS events, conferences, meetups, and internal engineering forums.

Requirements

  • 10 or more years of software engineering experience, including several years operating at Staff or Principal level.
  • Track record of setting technical direction across multiple teams or product areas with measurable company impact.
  • Exceptional breadth and depth of AWS expertise, including production-scale serverless, containers, networking, identity, and data services.
  • Experience evaluating platforms and services using technical and commercial criteria.
  • Strong knowledge of API and identity architecture, including OAuth 2.0, OIDC, PKCE, JWT, and IAM patterns across multiple accounts.
  • Experience setting observability and reliability standards and running effective incident practices.
  • Ability to read or write code in most languages and understand systems from browser to data layer.
  • Experience developing senior engineers into technical leaders and raising hiring standards.
  • Practical experience building LLM- and agent-based systems in production, including evaluation and output trustworthiness.
  • Strong public-speaking record at conferences, summits, or large internal forums.
  • Excellent technical writing across specifications, architecture decision records, and strategy documents.

Benefits

  • Hybrid schedule with two days per week in the Central London office.
  • London office with regular social events, office drinks, and free snacks.
  • Stock options.
  • Pension scheme through NEST.
  • Personal development budget for books, courses, and conferences.
  • Optional comprehensive BUPA health insurance, including dental care and fitness discounts.
  • Cycle-to-work scheme.
  • One paid volunteering day per year.
  • Generous parental benefits, including six months of fully paid maternity leave, four weeks of paternity leave, and a workplace nursery scheme.
  • Work-life balance and other company benefits.

Tech Stack

Categories

Motorway

About Motorway

201-500 employees

Motorway is a UK online marketplace for selling used cars, connecting private owners with verified dealerships through daily auctions. Sellers list vehicles via the app and dealers bid remotely, with the winning buyer arranging payment and collection. Founded in 2017 and headquartered in London, it is privately held and works with 8,000+ dealers nationwide, having helped hundreds of thousands of people sell their cars.

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