Staff Full Stack Software Engineer

Who you are

• 6+ years of professional experience in software engineering, with a focus on technical leadership and driving projects end-to-end
• Deep expertise in TypeScript/JavaScript, with a strong foundation across the full stack
• Hands-on experience putting AI to work in a real engineering organisation, whether that’s agentic workflows, automated code review, or internal agents. You have a clear view of where it pays off and where it doesn’t
• Familiarity shipping LLM-backed features to production, including prompt and context design, in a user facing product
• Broad AWS experience across serverless (Lambda, API Gateway, AppSync), containers (ECS/EKS) and managed services, with no strong attachment to one deployment model
• Skilled in defining and delivering features from initial architecture and design through to release, testing, and production support
• Able to thrive in a highly skilled, fast-paced engineering team. So far in 2026, we shipped:
• 49 mobile app releases (iOS and Android)
• 878 API releases
• 552 modelling backend releases
• Proven ability to mentor engineers, support team growth, and guide complex projects from design to release
• Comfortable with Infrastructure as Code tooling like Terraform, CDK, or CloudFormation
• Able to thrive in autonomous roles, taking ownership without heavy direction
• Experience working with cross-platform frameworks, such as React Native
• Have hands-on experience with SwiftUI or native mobile development
• Are confident working with and improving CI/CD pipelines, release cycles, and deployment processes

What the job involves

• We’re looking for a Staff Software Engineer (Full Stack) to play a pivotal role in driving the technical success of Runna
• This is a hands-on role where you’ll work across multiple squads, providing architectural direction, ensuring engineering excellence, and enabling the successful delivery of features across the entire Runna platform
• 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
• You’ll be a multiplier for the engineering team; mentoring developers, improving processes, and guiding the evolution of our systems as we scale
• We’re looking for someone who is not only technically excellent, but also a creative problem solver and collaborative leader who brings energy and clarity to fast-paced environments
• Lead the architectural design and technical strategy across multiple product teams, ensuring scalable, secure, and maintainable solutions
• Champion how we adopt AI across our SDLC, from agentic workflows and automated code review through to the tooling and guardrails that help the wider team ship faster without lowering the bar
• Drive the end-to-end delivery of key initiatives, working hands-on to build, test, and ship features across the full stack (mobile, backend, integrations)
• Coach and support engineers by providing technical guidance, mentorship, and code reviews without creating bottlenecks
• Collaborate with Product, Design, and Engineering Leads to define the best solutions for user experience, balancing speed, quality, and long-term technical goals
• Own the release process and support a culture of reliable, continuous deployment—while enabling teams to ship confidently and independently
• Maintain and grow a high-performing engineering culture based on ownership, knowledge-sharing, and continuous improvement
• ---Our Tech Stack---
• ---Frontend:
• React Native (iOS and Android)
• Typescript
• GraphQL (Apollo Client)
• Fastlane
• SwiftUI (Apple Watch)
• Maestro E2E tests
• ---Backend:
• AWS (Serverless/Terraform)
• Lambdas (NodeJS & Python)
• ECS
• AppSync, DynamoDB, S3, SQS, SNS, EventBridge
• Snowflake
• ---All the other good stuff:
• Sentry
• GitHub Actions
• Intercom, Mixpanel
• RevenueCat
• App Store Connect / Play Store

The application process

• Screening call with Talent team (30 minute video call)
• 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 of system design and some general architecture/tech questions)
• Meet the team (in-person chat with founder(s) and rest of the team)

Benefits

• Own a part of Runna: We want you to own a part of the company you're building. Everyone who joins Runna receives a generous stock options package
• Grow with us: As one of our early hires, you'll have a unique opportunity to shape and influence Runna's product and culture from the beginning
• Learn and develop: We work with all of the latest tools and technologies so you can learn at the cutting edge of product development
• Team socials: We're a friendly bunch and like to make work-like fun, whether that's lunches and dinners or our bi-weekly team run
• Paid vacation: We want people to take time off to rest and rejuvenate. Runna offers 25 vacation days + bank holidays
• Tools: You'll receive all new equipment including a laptop, running watch of your choice, and anything else you need to do your best work
• Get paid to Run(na): We have a dedicated hour block each week where you'll get paid to run! Whether you want to build up to your first 5k or do that tough intervals sessions it's up to you!
• Enhanced family care: 3 months fully paid when you welcome a new Runna into the family, as well as fertility support & a host of other benefits