At a Glance
- Tasks: Tackle impactful software challenges and optimise logistics solutions.
- Company: Join Relay, a fast-growing logistics startup reshaping e-commerce.
- Benefits: Generous equity, private health coverage, 25 days holiday, and extensive perks.
- Other info: Dynamic team culture focused on growth, collaboration, and feedback.
- Why this job: Make a real impact on millions of users with cutting-edge technology.
- Qualifications: Strong software development skills and a passion for innovation.
The predicted salary is between 43200 - 72000 £ per year.
Relay is fundamentally reshaping how goods move in an online era. Backed by Europe’s largest-ever logistics Series A ($35M), 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
- ~90 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 Engineering, 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 Software Engineer at Relay, you will:
- Own challenging, impactful problems end-to-end, from routing algorithms to real-time optimisation services and intuitive operational tools.
- Collaborate closely with top engineers, data scientists, and product leaders in a highly autonomous and impact-driven environment.
- Regularly ship production-quality code weekly—and often daily—seeing your work directly impact Relay’s growth.
- Create incredible product experiences powering the fastest-growing e-commerce platforms, including Vinted, TikTok, and Temu, impacting millions of users worldwide.
Fast and Focused Hiring Process
- Talent Acquisition Interview - 30 min
- API Integration Interview - 1 hour
- Technical Interview - 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.
Compensation, Benefits & Workplace
- 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
- Located in Shoreditch, our office set-up enables the kind of in-person interactions that drive impact. We work 4 days on-site, with 1 day remote.
- Hardware of your choice
- Extensive perks (gym subsidies, cycle-to-work, Friday office lunch, covered Uber home and dinner for late nights, and more).
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.
Senior Software Engineer in London employer: Relay Technologies
Relay is an exceptional employer, offering a vibrant and intellectually stimulating work culture that prioritises creativity and collaboration. As a Growth Marketing Manager, you'll have the unique opportunity to drive impactful marketing strategies in a fast-paced environment, backed by significant investment and a mission to revolutionise logistics. With a commitment to employee growth and a focus on diversity and inclusion, Relay empowers its team members to experiment, learn, and thrive while making a meaningful difference in the e-commerce landscape.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Software Engineer in London
✨Tip Number 1
Network like a pro! Reach out to current employees at Relay on LinkedIn or other platforms. Ask them about their experiences and any tips they might have for the interview process. This insider info can give you a leg up!
✨Tip Number 2
Prepare for those technical interviews by brushing up on your coding skills. Use platforms like LeetCode or HackerRank to practice problems similar to what you might face. Remember, showing off your problem-solving skills is key!
✨Tip Number 3
Don’t just focus on your technical abilities; be ready to showcase your soft skills too! Relay values collaboration and feedback, so think of examples where you’ve worked well in a team or handled challenges effectively.
✨Tip Number 4
Finally, apply through our website! It’s the best way to ensure your application gets seen. Plus, it shows you’re genuinely interested in being part of the Relay team. Let’s make that connection happen!
We think you need these skills to ace Senior Software Engineer in London
Some tips for your application 🫡
Show Your Passion:When writing your application, let your enthusiasm for the role and our mission shine through. We want to see how you connect with our vision of reshaping logistics and making e-commerce accessible to everyone.
Tailor Your CV:Make sure your CV highlights relevant experience and skills that align with the job description. We love seeing how your background in Python, Rust, or TypeScript can contribute to our team, so don’t hold back!
Craft a Compelling Cover Letter:Use your cover letter to tell us why you’re the perfect fit for Relay. Share specific examples of your past work and how it relates to the challenges we face. This is your chance to stand out, so make it count!
Apply Through Our Website:We encourage you to apply directly through our website. It’s the quickest way for us to receive your application and get the ball rolling. Plus, it shows you’re serious about joining our team!
How to prepare for a job interview at Relay Technologies
✨Know Your Tech Stack
Familiarise yourself with the technologies mentioned in the job description, like Python, Rust, and TypeScript. Be ready to discuss your experience with these languages and how you've used them in past projects. This shows you’re not just a fit for the role but also genuinely interested in their tech.
✨Prepare for Problem-Solving Questions
Relay is all about tackling challenging problems. Brush up on algorithms and optimisation techniques, as you might be asked to solve real-time routing issues or similar scenarios during the technical interview. Practising coding challenges can help you think on your feet.
✨Showcase Your Collaboration Skills
Since the role involves working closely with engineers, data scientists, and product leaders, be prepared to share examples of how you've successfully collaborated in the past. Highlight your ability to give and receive feedback, as this aligns with Relay's culture of teamwork.
✨Emphasise Your Impact-Driven Mindset
Relay values individuals who take ownership and measure their impact. Prepare to discuss specific instances where your contributions led to significant results. This could be through improving processes, enhancing user experiences, or driving project success—anything that showcases your proactive approach.
