Senior Software Engineer

Relay · London - Hybrid

Full Time senior tech
Apply through theHRkey →
pythontypescriptrustgcp

Relay is fundamentally reshaping how goods move in an online era. Backed by Europe’s largest-ever logistics Series A ($35M), led by deep-tech investors Plural (whose portfolio spans fusion energy and space exploration), Relay is scaling faster than 99.98% of venture-backed startups. We're assembling the most talent-dense team the logistics industry has ever seen

Relay’s Mission is to free commerce from friction. Today, high delivery costs act as a hidden tax on e-commerce, quietly shaping what can be sold online and limiting who can participate. We envision a world where more goods move more freely between more people, making the online shopping experience seamless and accessible to everyone.

THE TEAM
~110 people, more than half in engineering, product and data
45+ advanced degrees across computer science, mathematics and operations research
Thousands of data points captured, calculated, analysed and predicted for every single parcel we handle
• An intellectually vibrant culture of first‑principles thinking, tight feedback loops and relentless experimentation

Work Alongside Industry Leaders

Diego Protas – Director of Engineering

Diego, an expert in distributed systems and hardware architecture, merging physical computing with enterprise-scale infrastructure. Previously directing teams of 170+ engineers at Mercado Libre and orchestrating large-scale ML-based inference at Meta. At Relay, Diego’s infectious enthusiasm and hands-on leadership are redefining the boundaries of speed and reliability.

Tech Stack Highlights

The Opportunity

As a Software Engineer at Relay, you'll:

Fast and Focused Hiring Process

  1. Talent Acquisition Interview - 30 min

  2. API Integration Interview - 1 hour

  3. Technical Interview - 2 hours

  4. Operating Principles & Impact - 1 hour

  5. Decision and offer within 48 hours; our process mirrors our pace of work, typically completed in a week.

Compensation, Benefits & Workplace

Who Thrives at Relay?

Relay is an equal-opportunity employer committed to diversity, inclusion, and fostering a workplace where everyone thrives.

Find more English Speaking Jobs in United Kingdom on Arbeitnow

Posted 10 Aug 2026 · ref 288950