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Staff Backend Engineer (£140k-£160k + Equity) at well-funded circular economy marketplace

Summary

Lead backend architecture for a high-scale circular economy marketplace, focusing on payments, checkout, and order management systems handling millions of inventory items.

Staff Backend Engineer

Salary: £140k-£160k + Equity

Company Description

Well-funded circular economy marketplace

Job Description

Lead technical architecture for the Growth squad, overseeing high-scale systems including payments, checkout, and complex order management. Reporting to top-tier engineering leadership, you will scale backend infrastructure handling millions of unique inventory items. You will drive product-led engineering decisions to optimize a global supply chain for a rapidly growing Series B platform.

Location

London, UK

Why this role is remarkable

  • Own mission-critical architectural decisions for a platform scaling to millions of high-value transactions globally.
  • Work alongside elite engineering talent from tier-1 consumer tech companies in a product-obsessed, high-performance culture.
  • Backed by top-tier VCs at Series B, addressing massive logistical challenges in the sustainable commerce space.

What You Will Do

  • Architect and scale backend systems for discovery, checkout, and global payment flows within a high-impact growth squad.
  • Integrate automated workflows into core supply chain and inventory management systems to handle complex, high-volume inventory grading.
  • Mentor senior engineers and set the technical bar for code quality, system reliability, and long-term architectural strategy.

The ideal candidate

  • Demonstrated experience building backend systems at consumer scale within high-growth marketplaces, fintech, or B2C scale-ups.
  • Deep expertise in architectural trade-offs for payments, order management, or data pipelines, preferably using Node.js or TypeScript.
  • Product-builder mindset with a track record of connecting technical execution to tangible business outcomes and user experiences.

See also