Senior Mobile Engineer - Relay

Company Mission

In the future, commerce will be instant, local, and seamless. What we now call "e-commerce" will simply be how we shop.

Relay is building the logistics network that e-commerce should have had from the start. We're designed from the ground up for sustainability - environmental, social, and economic. By rethinking both the middle and last mile, we cut miles driven, reduce carbon emissions, lower costs, and return value to local communities.

Behind the scenes, we orchestrate this with cutting-edge tech: from smart routing and real-time planning to seamless tools that empower our ground teams.

We’re not just building the future, we're scaling it fast.

• We just closed a $35M Series A, the largest ever for a logistics tech startup in Europe.

• Brands like Vinted, TikTok, and Temu are choosing Relay to power their UK expansion.

• We're growing at a top 0.01% among all European Series A startups.

We’re looking for an exceptional mobile engineer to join our Last Mile Success team to work on building Relay Copilot. In this role, you can expect to…

• Work across the full stack of technology, from mobile all the way down through data infrastructure.

• Take end-to-end ownership over thorny real-world problems, like using machine vision to automatically assess proof of delivery photos.

• Collaborate with team members across the company.

• Regularly spend time in the field learning how the technology you build impacts our couriers and parcel recipients.

You might be a great fit for this role if…

• You have deep prior experience with mobile engineering, but don’t just think of yourself as a “mobile engineer.”

• There is truly no job in engineering you would not be excited to take on – and some outside of engineering as well. From fiddling with frontend code to standing up new API endpoints, you want to do it all. We don’t expect you to have done all (or even many) of these jobs before, but we do hope you’ll be curious to learn how to do them.

• You have high agency and take pride of ownership in your work. You naturally take initiative, seeking out the best opportunities for impact.

• You have deep empathy for the humans for whom you build technology, including customers, partners, and your fellow colleagues. You seek out the chance to hear directly from them and go out of your way to incorporate their feedback into your work.

• You are eager to learn new technologies and take on new problem domains.

• You value and practise clear communication, active listening, and intentional collaboration.

We are looking for candidates who…

• Have worked on high-performing teams building software for at least four years.

• Have broad experience across a variety of technology stacks.

• Has a strong willingness to learn / embrace Flutter (no previous experience is required).

What we offer:

• Generous equity package

• 25 days annual leave, plus bank holidays

• Bupa Global Business Premier health plan – including mental, dental, and optical cover

• Enhanced Parental Leave:

  • 20 weeks of fully paid maternity leave

  • 4 weeks of fully paid paternity leave

• Contributory pension scheme

• Friday office lunches

• Access to cutting-edge AI tooling

• Hybrid working from our dog-friendly Shoreditch office

• Free gym membership via our co-working spaces

• Cycle-to-work scheme

• Regular team socials, events, and offsites!!