Swap

Staff Software Engineer

Swap
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1 day ago
London, United KingdomStaff+

Responsibilities

  • Lead multi-quarter initiatives spanning multiple engineering teams from scoping through production.
  • Write exemplar code in critical paths and establish implementation standards.
  • Review cross-team designs and balance quality, speed, reliability, and maintainability.
  • Define operational standards for monitoring, availability, scalability, security, release safety, and cost awareness.
  • Help lead serious incidents and ensure corrective actions are completed.
  • Lead tool evaluations and architecture migrations, including build-versus-buy decisions.
  • Use AI coding tools effectively while preventing unnecessary complexity.
  • Define and monitor business success metrics and ensure launched work delivers merchant value.
  • Mentor Senior Engineers and junior engineers and participate in senior-level interviews.
  • Create and improve architecture documentation, decision records, and runbooks.

Requirements

  • Typically 8+ years of experience building and shipping production software.
  • Deep expertise in TypeScript, JavaScript, and Node.js, including REST and/or GraphQL APIs and distributed systems.
  • Ability to work across multiple languages and technology stacks as a T-shaped engineer.
  • Strong relational database, data modeling, and SQL skills, plus familiarity with NoSQL.
  • Experience designing reliable, scalable cloud systems with CI/CD, observability, and incident-response practices.
  • Hands-on experience with LLMs or agentic systems, or demonstrated ability to quickly adopt and apply new technology.
  • Daily use of AI coding tools and sound judgment about when to trust them.
  • Experience with eCommerce systems and platforms is preferred.
  • Excellent written and verbal communication and ability to explain technical trade-offs in business terms.
  • Strong ownership, teamwork, and follow-through through live and stable production delivery.

Benefits

  • Competitive base salary reviewed regularly, plus stock options.
  • Generous annual leave, public holidays, and a birthday day off.
  • Private healthcare, pension contributions, wellness benefits, and mental health support.
  • Enhanced maternity and paternity leave.
  • Flexible working with autonomy over where and how work is performed.
  • Ability to work abroad for up to four weeks per year.
  • Quarterly team offsite budget, Thursday happy hours, and Breakfast Mondays.
Swap

About Swap

201-500 employees

Swap builds an AI-native ecommerce platform that unifies backend operations—shipping, tracking, returns, cross-border, tax, and demand planning—with an agent-led storefront for guided discovery, virtual try-on, and checkout. It serves retail and DTC brands as a single SaaS system that links workflows to real-time buyer intent. Founded in 2022 and headquartered in London, Swap is privately held.

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