Senior Backend Engineer (eCommerce)

Location: Fully remote in the UK or based in London, United Kingdom

Salary: £110,000–£130,000/year

Company

Early-stage technology business developing solutions for eCommerce brands and building a growing technology platform.

What you will do

• Design, build, and maintain robust, scalable backend systems, services, APIs, and architecture.
• Architect infrastructure for job processing, analytics, event tracking, data pipelines, and background processing.
• Build internal tools for authentication, rate limiting, and quota management.
• Optimize performance, security, scalability, and reliability across the platform.
• Own the full engineering lifecycle, including code quality, testing, infrastructure, and monitoring.
• Collaborate with product, design, and customer experience teams while improving development processes, tooling, and technical architecture.

Requirements

• At least 4 years of experience building and maintaining production-grade backend systems.
• Strong programming skills and the ability to write clean, maintainable, well-structured code.
• Experience designing databases, APIs, and backend infrastructure.
• Understanding of high-throughput systems and background job queues.
• Strong ownership of code, infrastructure, testing, and monitoring.
• Confidence making sound technical decisions in a fast-moving, early-stage environment.
• Genuine interest in developer experience and building tools and systems that help other engineers.
• Experience across a combination of Python, TypeScript, AWS including ECS, SQS, and Parameter Store, Docker, PostgreSQL, Redis, GitHub Actions, LogFire, and Sentry.

Nice to have

• Experience with rate limiting, authentication systems, and quota management.
• Experience with analytics, attribution engineering, and event tracking.
• Experience with data platforms such as dbt and Snowflake.
• Experience building WYSIWYG editors, PDF generation and rendering processes, or image manipulation systems.
• Experience with server-side rendering frameworks such as Next.js or Remix.

Culture & Benefits

• Full-time role in an early-stage technology business with substantial backend ownership and technical influence.
• Autonomy to make technical decisions and shape the platform's foundations as the business grows.
• Inclusive recruitment process welcoming applicants from all backgrounds, experiences, and perspectives.
• Applicants who receive no response within two weeks should assume that their application was unsuccessful.