Relay
Senior Mobile Engineer
5mo ago
EuropeSenior
Senior Mobile Engineer role at Relay focused on reshaping logistics in e-commerce with a talented team in London hybrid setup.
Responsibilities
- 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.
How to apply
- Talent Acquisition Interview - 30 min
- Build a UI Component Interview - 1 hour
- Design and Mobile Fundamentals Interview + AI Programming (Build an APP) - 2 hours
- Operating Principles & Impact - 1 hour
- Decision and offer within 48 hours , our process mirrors our pace of work, typically completed in a week.
Other
- 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
- 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.
- Cross-platform Flutter apps with a deep focus on user experience
- Python, Rust and TypeScript - we keep things simple but use the right tool for the job
- 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
- 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.