Overview

Join to apply for the Senior Software Engineer role at Relay Technologies.

Relay is fundamentally reshaping how goods move in an online era. We are scaling quickly with a strong engineering and data-driven culture and are building a talent-dense team for the logistics industry.

The Team and Mission

• ~90 people, with 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 parcel we handle

• An intellectually vibrant culture of first-principles thinking, tight feedback loops and relentless experimentation

Relay’s Mission Relay exists to free commerce from friction. Today, high delivery costs act as a hidden tax on e-commerce. We envision a world where more goods move more freely between more people, making the online shopping experience seamless and accessible to everyone.

The Opportunity

As a Software Engineer At Relay, You’ll

• Own challenging, impactful problems end-to-end, from routing algorithms to real-time optimisation services and intuitive operational tools.
• Collaborate closely with top engineers, data scientists, and product leaders in a highly autonomous and impact-driven environment.
• Regularly ship production-quality code weekly—and often daily—seeing your work directly impact Relay’s growth.
• Create incredible product experiences powering the fastest-growing e-commerce platforms, including Vinted, TikTok, and Temu, impacting millions of users worldwide.

Team Principles

Relay engineers share core traits, captured in our guiding principles, "The Relay Edge":

• Aim with Precision: You define problems clearly and measure your impact meticulously.
• Play to Win: You chase bold bets, tackle the hard stuff, and view constraints as fuel, not friction.
• 1% Better Every Day: You believe that small, consistent improvements lead to exponential growth. You move quickly, deliver results, and learn from every experience.
• All In, All the Time: You show up and step up. You take ownership from start to finish and do what it takes to deliver when it counts.
• People-Powered Greatness: You invest in your teammates. You give and receive feedback with care and candor. You build trust through high standards and shared success.
• Grow the Whole Pie: You seek win-win solutions for merchants, couriers, and our customers, because when they thrive, so do we.

If these resonate, and you combine strong technical fundamentals with entrepreneurial drive, let’s connect.

Compensation & Benefits

• Generous equity, richer than 99% of European startups, with annual top-ups to share Relay’s success.
• Private health & dental coverage.
• 25 days of holidays.
• Enhanced parental leave.
• Hardware of your choice.
• Extensive perks (gym subsidies, cycle-to-work, Friday office lunch, covered Uber home and dinner for late nights, and more).

Fast and Focused Hiring Process

• Talent Acquisition Interview – 30 min
• API Integration Interview – 1 hour
• Technical Interview – 2 hours
• Operating Principles & Impact – 1 hour
• Decision and offer within 48 hours; typical process completes in a week.

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

Location and Availability

London, United Kingdom is referenced for opportunities and notifications related to this role.

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