Graduate Software Engineer

**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 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. **Who Thrives at Relay?** * **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 candour. You build trust through high standards and shared success. * **Grow the Whole Pie**: You seek out 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. *Relay is an* ***equal-opportunity employer*** *committed to diversity, inclusion, and fostering a workplace where everyone thrives.*