relay - Senior Data Scientist - Operational Research
Requirements
• 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.
Responsibilities
• Translate operational requirements into optimisation models across scheduling, assignment and pricing problems. • Develop and evaluate solution approaches — drawing on knowledge of mathematical programming and meta-heuristics. • Design and build algorithms, heuristics and solvers bespoke for the unique problems you formulate. • Ensure your solutions are scalable and adaptable to our growing operation. • Benchmark and evaluate the performance of your solutions • Work closely with engineering to productionise your solutions into automated daily processes • Work with analytics to monitor the daily performance of your solution, using this information to proactively evolve your solution to make better decisions. • You want to be close to the problems you are optimising, and decisions your solutions will make, getting hands-on in the network to see the outcome of your work first hand. • You have relevant operational research experience in heuristics and/or mathematical programming. • You are comfortable coding in a general purpose or performance language, such as Python, Rust, Julia or C++ • You enjoy the challenge of solving large-scale optimisation problems • You are motivated to work on production systems, learning from the realised outcome of your optimisation model every day, and proactively evolving your solution. • You love understanding problems deeply, crafting bespoke solutions to unique dynamics of the decision being made. • You are excited to work in a cross-functional tech team designing and building Relay’s Last Mile Marketplace • You care about the people your work affects — couriers, retailers, and consumers all feel the decisions these systems make • Fast and Focused Hiring Process • 1. Talent Acquisition Interview - 30mins | Online • 2. Hiring Manager Interview - 45mins • 3. Python Live Coding - 60mins • 4. Case Study - 60mins • 5. Relay Operating Principles & Impact- 60mins • 6. Decision and offer within 48 hours. Our process mirrors our pace of work.
Benefits
• Generous equity, richer than 99% of European startups, with annual top-ups to share Relay’s success. • Private health & dental coverage, so comprehensive you’d need to be a partner at a Magic Circle law firm to match it. • 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).
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