UI Programmer (Reactor Team)
Tripledot Studios
Software Engineering, Product, Design
London, UK
Posted on Feb 13, 2026
Tripledot is one of the largest independent mobile games companies in the world.
We are a multi-award-winning organisation, with a global 2,500+ strong team across 12 studios.
Our expanded portfolio includes some of the biggest titles in mobile gaming, collectively reaching top chart positions around the world and engaging over 25 million daily active users.
Tripledot’s guiding principle is that when people love what they do, what they do will be loved by others.
We’re building a company we’re proud of – one filled with driven, incredibly smart and detail-orientated people, who LOVE making games.
Our ambition is to be the most successful games company in the world, and we’re just getting started.
The role is working within the Reactor Team
The role is working within the Reactor Team
We are the architectural backbone of Tripledot Studios, building the systems and pipelines that power every studio globally. We proactively identify friction and engineer solutions that allow hundreds of developers to ship faster. If you want to define how games are made at a global scale and own your impact from day one, this is your team.
Role Overview
We’re looking for a Game Developer who will act as the architect of UI systems and complex feature implementation, with a strong eye for UX and motion.
- Department
- Engineering
- Employment Type
- Permanent - Full Time
- Location
- London, UK
- Workplace type
- Hybrid
- Reporting To
- Ugis Brekis
Key Responsibilities
- Building robust, reusable UI components and frameworks used across multiple studios.
- Programming the logic and sequencing for internal animation systems.
- Ensuring UI logic is performant (minimising rebuilds/draw calls) on mobile devices.
- Creating solutions that are stable and scalable for use by hundreds of internal developers.
- Independent worker who proactively optimises codebase and workflows.
Skills, Knowledge and Expertise
- Mastery in Unity UGUI - expert-level implementation of complex, scalable UI hierarchies and prefabs.
- Advanced C# architecture, strong OOP principles, specifically applied to UI systems and feature development.
- Proven ability to implement intricate UX flows and transitions from Figma specs into Unity.
- Experience designing systems/tools used by other developers or artists.
Benefits
- 25 days paid holiday in addition to bank holidays to relax and refresh throughout the year
- Hybrid Working: We work in the office 3 days a week, Tuesdays and Wednesdays, and a third day of your choice.
- 20 days remote working: Work from anywhere in the world, or use the time to cover mandatory office days to WFH, 20 days of the year.
- Daily Free Lunch: when in the office you get £12 every day to order from JustEat.
- Regular company events and rewards: quarterly on-site and off-site events that celebrate cultural events, our achievements and our team spirit.
- Employee Assistance Program: Anytime you need it, tap into confidential, caring support with our Employee Assistance Program, always here to lend an ear and a helping hand.
- Family Forming Support: Receive vital support on your family forming/ fertility journey with our support program [subject to policy]
- Life Assurance & Group Income Cover: Financial protection for you and your loved ones.
- Continuous Professional Development: Propel your career with continuous opportunities for professional development.
- Private Medical Cover & Health Cash Plan: Opt-in (P11d benefit) comprehensive private medical cover with Bupa and cash plan with Medicash.
- Dental Cover: Opt-in (P11d benefit).
- Cycle to Work Scheme: Salary sacrifice bike purchase scheme.
- Pension Plan: Qualifying earnings or opt-in 4% contributory match schemes offered.
About Tripledot
We are Tripledot Studios, our mission is to bring the knowledge and experience of a chart-topping mobile games company into a close-knit, collaborative environment. Our teams drive projects together from conception to launch in an indie-style process combining data and creativity to make games that can be enjoyed by everyone.