Job description
Senior Mobile Developer (Android) – Contractor
Hawk-Eye Innovations
Join Hawk-Eye Innovations as a Senior Mobile Developer (Contractor)
We’re looking for an experienced Senior Mobile Developer (Android) to join our Tracking team on a contract basis, supporting the development of an in-house mobile application used in live sports tracking and testing environments.
This role is focused on Android development using Kotlin, working closely with camera pipelines, real-time video capture, and on-device machine learning. The application is currently used in Cricket, with scope to expand into other sports.
This is an urgent contractor requirement, ideally suited to a UK-based contractor, with occasional in-person testing at sports venues as required.
What You’ll Be Working On
You’ll be contributing to a production in-house Android application used internally by Hawk-Eye’s tracking and development teams.
Key areas include:
Enhancing and modernising an existing Android application
Improving performance, stability, and user experience
Working directly with mobile camera pipelines using the Android Camera 2 API
Integrating and running machine learning models on-device to support:
Ball tracking
Player tracking
Optimising threading models, lifecycle management, and performance for real-time workloads
Supporting hands-on testing in live sports environments, including occasional on-site testing at sports venues
Collaborating closely with Tracking and Computer Vision teams to ensure clean system integration
Key Responsibilities
Lead best practices for Android mobile development
Design, develop, and maintain high-quality Kotlin-based Android applications
Own complex features from design through to delivery
Work closely with developers across Tracking, Tooling, and Computer Vision
Support testing, debugging, and deployment of new features
Participate in technical discussions and code reviews
Contribute pragmatically in an agile, sprint-based environment
Tech Stack and Experience Requirements (Senior Level)
Essential:
Strong, hands-on experience in Android development using Kotlin
Deep understanding of Android application architecture, lifecycle, and threading
Proven experience working with the Camera 2 API in production
Experience building high-performance, real-time mobile applications primarily using Kotlin
Solid understanding of software design principles and clean code practices
Comfortable working independently and taking ownership as a contractor
Highly desirable:
Experience running or integrating machine learning models on mobile devices
Understanding of on-device performance optimisation for video or ML workloads
Experience with mobile video capture or processing pipelines
Bonus skills:
FFmpeg
OpenCV
Networking
AWS
iOS development
Engagement Details
Contract role
UK-based preferred
Primarily remote, with occasional on-site testing at sports venues
Equal Opportunity Employer
Hawk-Eye Innovations, part of Sony Sports Businesses, is committed to creating a diverse and inclusive environment.
We engage contractors fairly based on skills, experience, and professional capability, and aim to create a respectful and inclusive working environment for all.
