Software Engineer - UI

1 Month ago • 3 Years + • Frontend Development

Job Summary

Job Description

Atomic Theory seeks a talented UI Engineer to implement and maintain robust UI systems for immersive player experiences. Responsibilities include collaborating with cross-functional teams, debugging UI systems, writing clean and optimized code for UI features (screens, menus, HUDs), and ensuring high-quality user interactions. The role requires 3 days per week onsite in Cardiff, UK, with remote work options for the remainder. Ideal candidates possess 3+ years of game engine programming experience (Unity, Unreal, or similar), strong C++/C# skills, and proven UI system design and implementation capabilities.
Must have:
  • 3+ years game engine programming experience
  • Strong C++/C# skills
  • Proven UI system design & implementation
  • Problem-solving & debugging skills
  • Effective communication & collaboration
Good to have:
  • Shipped game experience
  • Feature ownership
  • Large-scale project experience
  • UI implementation in released product
Perks:
  • Hybrid working arrangement
  • Competitive salary & benefits
  • Private pension
  • Optional private medical, dental, vision
  • Annual leave, bank holidays, winter break
  • Annual research credit
  • Professional development opportunities
  • Work-life balance, no crunch
  • Maternity/Paternity/Adoption leave
  • Weekly team lunches, snacks, team lounge

Job Details

Please note that this is a hybrid position based in Cardiff, requiring 3 days onsite each week, with the option for remote work on the remaining days.


Part of the Rocket Science Group, Atomic Theory comprises a multinational team of seasoned AAA veterans with roots extending from Blizzard, PUBG, Epic, and Unity. We have a track record of delivering player-centric, AAA-quality experiences, and we're unwavering in our commitment to performance, accessibility, and the meticulous attention to the engineering tools and frameworks that underpin exceptional gameplay.


But Atomic Theory is more than just a studio; for us, it's a sanctuary, a place where our diverse experiences intersect and combine to carry our solutions to the next level. We are dedicated to helping studios and publishers navigate the toughest challenges across today's game development landscape. With offices in Albany, NY; Austin, TX; and Cardiff, UK, we thrive on the opportunity to Get Sh!t Done on a global scale.

ABOUT THE ROLE:


We are looking for a talented and experienced UI Engineer to join our team. In this role, you will be responsible for implementing and evolving robust technical solutions to deliver quality user experiences with our partners, enabling players worldwide. You will craft smooth interactions that empower all types of players to deeply engage with games.

WHAT YOU’LL DO:

  • User Interface Development: Implement and maintain robust UI systems for impactful and immersive player experiences.

  • Collaboration: Work closely with cross-functional teams to gather feedback and improve user interface designs.

  • Problem-Solving: Debug and resolve technical challenges efficiently to maintain the quality and performance of UI systems.

  • Code Maintenance: Write clean, maintainable, and optimized code for UI features, screens, menus, and HUDs.


WHAT WE VALUE:

  • Game Development Experience: 3+ years of programming experience with game engines (e.g., Unity, Unreal, or proprietary systems).

  • Technical Proficiency: Strong C++/C# skills and solid math foundations.

  • UI System Expertise: Proven ability to design, implement, and maintain UI systems in game environments.

  • Problem-Solving Skills: Strong critical thinking and debugging skills.

  • Communication Skills: Ability to collaborate and communicate effectively with internal and external teams.

  • Self-Motivation: Capacity for self-motivation, independent work, and maintaining a strong work ethic.

  • Adaptability: Willingness to receive and act on constructive feedback.


WHAT YOU MAY ALSO HAVE:

  • Shipped Game Experience: Previous experience contributing to one or more shipped titles as an engineer.

  • Feature Ownership: Experience owning the implementation of impactful game features.

  • Team Collaboration: Experience working with larger teams and contributing to large-scale projects.

  • UI Implementation: Developed and shipped UI features, screens, menus, or HUDs in a released product.



WHAT WE CAN OFFER:

  • Hybrid Working Arrangement: Our office in Cardiff is located right in the City Centre, just a couple minutes away from the Cardiff Central Train Station! As a member of our team, you’ll have the flexibility to work at home and collaborate with your fellow engineers in person.

  • Competitive Salary and Benefits Package: Your health and wellbeing is important to us, so we offer a variety of benefits including: 

    • Private Pension via Salary Sacrifice

    • Optional Private Medical, Dental, and Vision Coverage

    • Annual Leave, Plus Bank Holidays and Winter Break Office Closure

  • Annual Research Credit: We always encourage personal growth, so we provide all of our team members with an annual credit to further enhance your skills! 

  • Professional Development: We offer biannual reviews, as well as opportunities to collaborate across disciplines, internal tech talks, and the chance to learn from specialists with backgrounds from across the games and software development industries. 

  • Work-Life Balance: We really believe that home life comes first and we promote a flexible working environment. And as an added bonus: We don’t crunch! 

  • Family Friendly: We understand the importance of family, which is why we offer 6 weeks full of Maternity, Paternity, and Adoption Leave to support you during this exciting time!

  • Office Perks: In addition to everything above, we also provide: 

    • Weekly Team Lunches

    • Snacks, Including the Good (Yorkshire) Tea

    • Fully Equipped Team Lounge, Including our Favourite Consoles and Games

    • And, most importantly, a supportive and creative working environment made up of talented and friendly people, as well as the opportunity to work on some pretty cool games and projects – if we do say so ourselves!

A FRIENDLY NOTE FROM THE RECRUITMENT TEAM:

Let us do the work for you: Even if your profile isn’t an exact match for all of the qualifications listed above, we still want you to apply. Our team members come from a variety of different industries, not all of which are immediately relevant to game or software development, and we welcome all candidates of similarly varied backgrounds, communities, and identities. 


Rocket Science is an equal opportunity employer and is committed to providing a worry-free workplace void of discrimination or harassment. Rocket Scientists are expected to foster and champion an environment in which everyone has the opportunity to feel included and is afforded the respect and dignity they deserve. 

Rocket Science does not accept unsolicited résumés from recruiters, employment agencies, or staffing firms.  

#li-hybrid

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About The Company

You know us already. We're the team (behind the team) behind many of the world's hottest games. We specialize in multiplayer, publishing platforms, server scaling, and player retention.

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Cardiff, Wales, United Kingdom (Hybrid)

Cardiff, Wales, United Kingdom (Hybrid)

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