About the role

Work alongside industry leaders in tech.
Define and implement core API concepts.
Build software for courier operations.
Engage in hands-on field learning.
Exciting opportunity for final year students.

Skills the posting asks for

Python
Rust
TypeScript
GCP
BigQuery

Summarised from the employer’s posting, which is reproduced in full below.

The employer’s full posting

Work Alongside Industry Leaders

Diego Protas – Director of Platform 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

Python, Rust and TypeScript - we keep things simple but use the right tool for the job
Cross-platform Flutter apps with a deep focus on user experience
Cloud-native on GCP with extensive use of BigQuery and Cloud Run
Extensive use of ML modelling and LLM inference - no gimmicks here, this is our daily routine
Emerging tech integrations, including robotics and IoT-powered operations

The Opportunity

As a Graduate Software Engineer at Relay, you will:

Define and implement the core concepts of our API.
Build the first versions of our courier-facing software to guide the delivery of thousands of parcels every day.
Help stand up our data infrastructure stack, the basis of our routing, topology management, and other core operations research tasks.
Regularly spend time in the field learning how the technology you build impacts our couriers and parcel recipients.

You Might Be a Great Fit If…

You are a final year university student with initial engineering experience through internships and academic projects.
You’re excited to take on any engineering challenge from cloud infrastructure to frontend development. Curiosity and willingness to learn matter more than past exposure.
You have high agency and pride of ownership in your work, taking initiative to drive impact.
You demonstrate empathy for the humans you build for, seeking feedback from customers, partners, and colleagues.
You are eager to learn new technologies and problem domains.
You value clear communication, active listening, and intentional collaboration.

We Are Looking for Candidates Who…

Are ready to join us in Summer 2026 and able to work in our London office 4 days a week.
Have worked on high-performing teams building software.
Have broad experience across a variety of technology stacks.

Fast and Focused Hiring Process

Talent Acquisition Interview - 30 min
Programming Interview - 1 hour
API Integration Interview - 1 hour
Operating Principles & Impact - 1 hour
Decision and offer within 48 hours; our process mirrors our pace of work, typically completed in a week.