Principal Engineer

3 Weeks ago • All levels • Game Engine • Technical Art

Job Summary

Job Description

Unknown Worlds seeks an experienced Principal Engineer to lead development on a new game project using Unreal Engine 5. Responsibilities include architecting and developing core gameplay systems, ensuring performance and integration with creative goals; establishing a strong technical foundation; mentoring engineers new to Unreal; collaborating with the Engineering Lead on risk mitigation; and contributing to technical documentation. The ideal candidate possesses expert-level C++ and Unreal Engine knowledge, demonstrated through shipped titles, a passion for mentorship, a T-shaped skillset, and the ability to balance hands-on work with technical guidance. The role involves significant impact and broad scope, requiring strong problem-solving skills and collaboration across various systems.
Must have:
  • Expert C++ and Unreal Engine knowledge
  • Shipped game titles experience
  • Mentorship and technical guidance
  • System architecture and development
  • Performance optimization
  • Collaboration and communication
Good to have:
  • Current-gen console development
  • Profiling and optimization
  • Engineering tools or asset pipelines experience
Perks:
  • Annual professional development
  • Home office stipends
  • Paid time off for volunteer work

Job Details

THE OPPORTUNITY

Unknown Worlds is seeking an experienced Principal Engineer to help drive the development effort on a new game project. As a key technical expert, you will play a critical role in building foundational systems in Unreal Engine 5 and guiding our engineering team through the transition to Unreal.

You excel at being a hands-on problem solver, helping to architect, implement, and optimize core gameplay and engine systems while also mentoring the team to deepen their Unreal expertise and develop strong technical foundations. This is a high-impact, broad-scope role—perfect for a generalist who enjoys working across a variety of systems. Reporting to the project engineering lead, you will help surface technical risks, refine development workflows, and contribute directly to the codebase while maintaining a strong focus on team mentorship.

This is a remote position on a fully distributed team.  We are looking for a candidate with the flexibility to collaborate with a team located primarily in the East and West Coast US time zones.

Responsibilities

  • Architecting and developing key gameplay features and systems, ensuring they are well-integrated, performant, and aligned with the project’s creative and technical goals.
  • Establishing a strong technical foundation for the project, designing scalable systems that will support long-term development and iteration.
  • Providing clear and concise mentorship and technical guidance to engineers who are new to Unreal.
  • Collaborating closely with the Engineering Lead to proactively identify technical risks and design effective mitigations.
  • Contributing to technical documentation, capturing best practices and key architectural decisions to support long-term development.

Qualifications

  • Expert level knowledge of game development in C++ and Unreal Engine, demonstrated through multiple shipped titles across multiple platforms.
  • Passionate about mentoring and helping others grow–with a proven track record of providing code reviews, architecture reviews, and day-to-day support with empathy and patience.
  • T-shaped skillset, with broad technical knowledge across game development systems, deep expertise in at least one area, and strong adaptability to new challenges and technologies.
  • Effectively balance hands-on implementation with technical guidance.
  • Possess excellent judgement in balancing long-term scalability and robustness with immediate development needs, ensuring pragmatic use of time and effort.

Preferences

  • Experience with current generation console development, profiling and optimization.
  • Previous work with engineering tools or asset pipelines as a secondary or complimentary skill.

 

Don’t meet every single requirement? 

Studies have shown that women and people of color are less likely to apply at jobs unless they meet every single qualification.  At Unknown Worlds we are dedicated to building a diverse, inclusive, and authentic workplace, so if you’re excited about this role but your past experience doesn’t align perfectly with every qualification in the job description, we encourage you to apply anyway.  You might just be the right candidate for this or other roles.

 

Reasonable Accommodation

KRAFTON Americas is committed to the full inclusion of all qualified individuals. As part of this commitment, the Company will ensure that persons with disabilities are provided reasonable accommodations. If reasonable accommodation is needed to apply for an open position, perform essential job functions, and/or to receive other benefits and privileges of employment, please contact the HR Talent team at KRAFTON Americas, to begin the interactive process.

EEOC statement

KRAFTON Americas provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type.

Due to recent scams, our recruiters will only reach out to you via @sds.com, @krafton.com, @unknownworlds.com or @pubg.com. If you received an email and are unsure you can always email recruiting_ka@krafton.com. 


We make games that are accessible and engaging for players all over the world.  We believe in hiring and supporting the most talented and creative people of diverse backgrounds.  That support includes annual professional development and home office stipends, as well as paid time off for volunteer/non-profit work.  Join us and be a part of our growing and innovative studio. 

Unknown Worlds Entertainment, Inc. is an Equal Employment Opportunity Employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender perception or identity, national origin, age, marital status, protected veteran status, or disability status.

 

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