Software Engineer II - Athlete Performance
London · United Kingdom - London · GBP 51,000-86,000 · Remote · Posted Sep 29, 2026
At a glance
- Workplace
- Remote
- Location
- London · United Kingdom - London
- Salary
- GBP 51,000-86,000 · Base salary
About the role
- The Software Engineer II will join a cross-functional product team within the Athlete Performance group to build mobile applications and core data services.
- The role focuses on developing hardware-agnostic communication interfaces to stream live sensor and optical tracking data to cloud and mobile clients.
- Engineers will translate complex biomechanical data into actionable metrics for elite coaches, athletes, and medical teams.
Responsibilities
- Collaborate with Engineering, Quality Assurance, Product, Design, and Scrum disciplines to deliver feature-rich mobile and back-end services.
- Take ownership of specific features, defining low-latency communication interfaces across the stack.
- Build user-facing application features that turn complex sensor data into clear, actionable insights.
- Write high-quality code and conduct code reviews.
- Solve technical problems using modern mobile and cloud development best practices.
- Collaborate with senior engineers and tech leads to refine technical architecture skills.
Requirements
- Hands-on experience developing native or cross-platform mobile applications, ideally with React Native (iOS and Android).
- Experience working with different API styles and communication patterns for streaming data across mobile clients and back-end systems.
- Ability to work as a team player to solve problems and share knowledge.
- Excitement to build intuitive interfaces that translate complex physical or optical sensor data into digestible information.
- Solid core engineering skills and willingness to learn mobile frameworks, time-series data streams, or cloud architecture.
- Must be within commuting distance of London and able to work in-office more days than remote.
Preferred qualifications
- Hands-on experience with modern cloud infrastructure (AWS/GCP), microservice architectures, time-series databases, and CI/CD deployment pipelines.
- Background working with real-time video, wearable devices, or streaming optical/sensor data.
- Experience in sports technology or performance analytics.
- Experience with mobile build and release pipelines (GitHub Actions).
- Experience with distribution platforms such as TestFlight and Firebase App Distribution.
- Experience with testing frameworks such as Jest and Detox.
Benefits
- Flexible vacation time above statutory leave
- Company-wide holidays
- Timeout (meeting-free) days
- Remote work options
- Professional development resources
- Medical benefits
- Retirement benefits
- Employee Assistance Program
- Employee resource groups
Workplace
- Time spent collaborating in-office is a regular part of the role.
- Expected to work more days in-office than remote.
- Specific in-office schedule can be coordinated with the team.
Skills
- React Native
- iOS
- Android
- AWS
- GCP
- Time-series Databases
- CI/CD
- GitHub Actions
- TestFlight
- Firebase App Distribution
- Jest
- Detox