Software Engineer, Full Stack (Senior)

TN United Kingdom; London; Hybrid; GBP 80,000 - 95,000; Full time

Job summary

Join a dynamic and innovative team that is on a mission to revolutionize the training experience for runners. As a Senior Full Stack Software Engineer, you will play a crucial role in developing and enhancing applications that empower everyday runners. Your work will directly impact our growth as we aim to reach millions of subscribers in the next five years. This position offers a unique opportunity to collaborate closely with founders and lead exciting projects that shape the future of our platform. If you are passionate about technology and fitness, this is the perfect place for you to make a difference.

Benefits

Flexible working

25 days of holiday plus bank holidays

Private health insurance

Enhanced family care policy

New Macbook

Running watch of your choice

Qualifications

• 4+ years experience in software engineering, especially in full-stack development.
• Comfortable with iterative development and continuous deployment.

Responsibilities

• Architect, build, test and deliver new features across the full stack.
• Collaborate with product team to enhance customer experience.

Skills

Frontend Development

Backend Development

Python

SwiftUI

React Native

CI/CD

AWS

Serverless Architectures

Terraform

Open Source Contributions

Tools

React Native

Typescript

Fastlane

AWS AppSync

DynamoDB

GitHub Actions

Job description

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Software Engineer, Full Stack (Senior), London

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Client:

Runna

Location:

London, United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Reference:

4751b9357d64

Job Views:

2

Posted:

05.05.2025

Expiry Date:

19.06.2025

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Job Description:

We're putting together a talented team to build the #1 training platform for Runners

We help everyday runners become outstanding by providing world-class training, coaching and community for everyone, whether you're improving your 5k time or training for your first marathon. To date we have built iOS, Android and Apple watch apps that help people achieve their goals by coaching them through the full journey and syncing to their favourite fitness devices.

We’re growing extremely fast and in November 2023 closed a new £5M funding round led by JamJar with participation from Eka Ventures, Venrex and Creator Ventures. And in 2024, we were selected by Apple as one of three global finalists for the 2024 iPhone App of the Year reflecting the innovation and impact of what we’ve built.

We want to grow as fast as we can into the future and are looking for individuals who will help us get there. For more about our background and growth check out our Careers Page!

We’re now looking ahead to the future and the people who want to help us build and scale Runna. Our aim is to reach millions of subscribers in the next 5 years and be the go-to training platform for any runner. Now is a magical time to join, we're still small, and everyone makes a foundational difference.

Who we’re looking for

We are looking for talented, creative and positive team players to join our highly-skilled Cross-Functional Engineering Team to help deliver new features for our iOS, Android and Apple watch applications and third-party integrations (Garmin, Strava, Coros, Fitbit Suuntu etc). You will work closely with our founders and CTO to help shape the future of Runna, who will support you all along this exciting journey.

As a Software Engineer, your role will include:

• Architect, build, test and deliver new features across the full stack
• Work with the Product team to identify the most suitable solution for the best customer experience
• Always be on hand to help other team members when they need help on technical matters
• Help us operate more efficiently, by building and maintaining our developer tooling and CI/CD pipeline
• We rotate the responsibility of releases across each team member, so you will get the opportunity to lead the process and deploy changes to production

Requirements

What experience we’re looking for

If you don’t quite meet all of the below skills, we’d still love to hear from you as we might be able to tweak the role slightly or offer you a position better suited for you. You can apply directly below or contact us if you’re still unsure.

• Able to work in a highly skilled engineering team in a fast-paced, iterative environment
• 4+ years experience in your main expertise area (Frontend, Backend etc)
• Comfortable picking up new things and working on technologies outside your comfort zone
• Are skilled in delivering features end-to-end, from architecture design and building through to releasing, testing and supporting
• Enthusiasm for our ways of working which include:
• Iterative development, continuous deployment and test automation
• Shared code ownership & cross-functional teams
• Are experienced in delivering features full-stack
• Are experienced in Python or SwiftUI
• Are experienced in deployment, releasing cycles or CI/CD
• Have experience with React Native (worked on large scale applications)
• Have experience with Serverless architectures
• Have experience with AWS
• Experience with Terraform or other IaC tooling (e.g. CDK, CloudFormation, etc.)
• Have experience in open source contributions, including reporting bugs/issues in GitHub, testing new releases, or contributing to code
• Have a strong interest in the health/fitness technologies

Check out our tech radar here which we are constantly iterating, and below you can find a small reflection of our current tech stack:

Frontend:

• React Native (iOS and Android)
• Typescript
• Fastlane
• SwiftUI (Apple Watch)
• Serverless (AWS)
• AWS AppSync
• DynamoDB, S3, SQS, SNS, EventBridge, SageMaker
• Postman API tests

All the other good stuff:

• Sentry
• GitHub Actions
• Intercom, Mixpanel
• RevenueCat
• App Store Connect / Play Store
• Figma

Software Engineer Interview Process

Our aim is to keep the interview process as straightforward and enjoyable as possible, and will consist of the following stages:

Kick off! (apply below) - please let us know if there are any reasonable adjustments we can make for you!

• Getting to Know You + Live Coding (45-minute video call, first 25 mins will be an introductory chat followed by two live coding exercises from https://leetcode.com/)
• Take home technical task (max 1-2 hours to complete, or if you have something interesting you recently built and would like to showcase then that's perfectly OK)
• 1.5-hour technical interview (the first half of the call will be used to discuss the take-home technical task from the previous stage and the second half will consist some general architecture/tech questions)
• Meet the team (in-person chat with founder(s) and rest of the team)

Once the process is finished, we promise to let you know our decision as soon as possible.

We offer a salary of £80,000 - £95,000 (depending on experience), plus equity in the form of Runna stock options.

** Based on years of direct, relevant experience. Software Engineer I £42.5k, Software Engineer II £47.5-60k, Software Engineer III £60-80k, Software Engineer IV £80k-95k, Software Engineer V £95k+

We'll be growing our package of benefits over time. We currently offer:

• Flexible working (we typically work 2-3 days in our office in Vauxhall)
• Salary reviews every 6 months or whenever we raise more investment
• 25 days of holiday plus bank holidays
• A workplace pension scheme where if you pay 5% we pay 3%
• A brand new Macbook, a running watch of your choice, and anything else you need to do your best work
• Private health insurance
• Enhanced family care policy (3 months fully paid leave when a new Runna joins the family, fertility support & other benefits)
• An hour slot each week (during work time) to do a Runna workout

At Runna we have a limited number of employment visas that we are able to sponsor and are limited by govt. guidelines so cannot guarantee a visa sponsorship to all applicants. Please do apply though as we will consider all applicants.