Concept Onyx Recruitment

Lead/Senior Sim Developer

Are you a Lead/Senior Sim Developer who wants to be part of a groundbreaking mission to redefine human performance and revolutionize training?

  • Senior / Lead Sim Developer with ideally 5+ years experience in either Unity3D or Unreal Engine.
  • Fully remote and flexible working.
  • Salary budget up to £80k + excellent benefits.

Are you a Lead/Senior Unreal or Unity3D Developer who wants to be part of a groundbreaking mission to redefine human performance and revolutionize training?

About the Hiring Company
We’re on a mission to save lives by unlocking every individual’s potential through innovative simulation and training solutions. Our vision is to make personalized, adaptive learning environments accessible to everyone, transforming the way people are trained. Our clientele includes major players in aerospace, defense, and renewable energy sectors. We’re committed to creating shared value for our stakeholders and upholding sustainable practices.

The Role
We are seeking an experienced Lead/Senior Unreal or Unity3D Developer to join our team. In this role, you’ll lead a talented development team, shaping our engineering culture and driving excellence in development processes. Responsibilities include designing, implementing, and optimizing simulation software, collaborating closely with engineers, designers, and artists.

Required Skills

  • Proficient in C++ coding principles with 4+ years of experience
  • Strong knowledge of Unreal Engine 4/5 or Unity3D
  • Ideally 5+ years of experience in gaming or real-time simulation development
  • Ability to manage development engineers and mentor junior team members
  • Excellent problem-solving skills and attention to detail
  • Strong communication skills and ability to work effectively in a team

Bonus Points for:

  • Experience with data architecture integration
  • Knowledge of human performance data
  • Customer-facing experience
  • Background in gaming, simulation, aerospace, or defense


  • Competitive salary with annual benchmarking
  • Generous pension contribution
  • Employee assistance program with medical insurance and mental health support
  • Remote and flexible working arrangements
  • Additional perks including 5G SIM card and hardware package

Join us and be part of a team committed to driving innovation and transforming training paradigms. Apply now to embark on your next challenge!

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