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Senior Software Engineer

Job in Greater London, London, Greater London, W1B, England, UK
Listing for: Runna
Full Time position
Listed on 2026-04-30
Job specializations:
  • Software Development
    Full Stack Developer, Software Engineer, Cloud Engineer - Software, DevOps
Salary/Wage Range or Industry Benchmark: 125000 - 150000 GBP Yearly GBP 125000.00 150000.00 YEAR
Job Description & How to Apply Below
Position: Senior Software Engineer I
Location: Greater London

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

We help everyday runners become outstanding by building an incredible app providing world-class training, coaching and community for everyone, whether you re improving your 5k time or training for your first marathon.

We re growing extremely fast! In November 2023 we closed a $6.5M funding round led by Jam Jar with participation from Eka Ventures, Venrex and Creator Ventures. In 2024, we were selected by Apple as one of three global finalists for the iPhone app of the year, reflecting the innovation and impact of what we’ve built and in 2025 we were acquired by Strava!

Our ambition is huge: to become the go-to global leading training platform for millions of runners everywhere. We’re growing with purpose and looking for people who want to build something meaningful with lasting impact. With the recent acquisition by Strava accelerating our journey, now is a really magical time to join.

The team you’ll join

We are looking for talented, creative and positive team players to join our highly-skilled cross-functional engineering team. You ll sit on the Train Team where you will work closely with our modelling teams to integrate features that are core to Runna s mission (think adapting plans around holidays and B races, supporting new cutting edge plans, and building in-app experiences around our AI/ML tooling).

You will work closely with our founders, CTO, and engineering leadership team to help shape the future of Runna, who will support you all along this exciting journey. We have a jam packed roadmap, with countless opportunities to champion new technologies, work on meaningful problems that impact millions of runners, and improve existing architecture to elevate the whole of our engineering team.

What

You ll Do:
  • 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

  • Collaborating with modelling/AI engineers to design architecture used to interface between the Runna training engine and Runna app

  • 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

What You ll Bring to the Team:
  • Very proficient in Type Script/JavaScript development

  • Able to work in a highly skilled engineering team in a fast-paced, iterative environment. In 2024 we shipped:

  • 99 mobile app releases (iOS and Android)

  • 443 API releases

  • 237 modelling backend releases

  • 2+ 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

    • Knowledge sharing, pair programming, collaborative design & development

    • Shared code ownership & cross-functional teams

  • Are experienced in delivering features full-stack

  • Have experience with React Native

  • Have experience with AWS

Bonus points if you have:
  • Have experience working with native frameworks and tooling (Swift

    UI, etc)

  • Are experienced in deployment, releasing cycles or CI/CD

  • Experience with Terraform or other IaC tooling (e.g. CDK, Cloud Formation, etc.)

  • Have experience in open source contributions, including reporting bugs/issues in Git Hub, testing new releases, or contributing to code

Our Tech Stack

Find below a small reflection of our current tech stack:

Frontend:
  • React Native (iOS and Android)

  • Typescript

  • Graph

    QL (Apollo Client)

  • Fastlane

  • Swift

    UI (Apple Watch)

  • Maestro E2E tests

Backend:
  • Serverless (AWS)

  • Lambdas (NodeJS & Python)

  • AWS App Sync

  • Dynamo

    DB, S3, SQS, SNS, Event Bridge, Sage Maker

  • Snowflake

All the other good stuff:
  • Sentry

  • Git Hub Actions

  • Intercom, Mixpanel

  • Revenue Cat

  • App Store Connect / Play Store

  • Google Tag Manager

We follow a…

Position Requirements
10+ Years work experience
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