Lead UI Engineer is open at 31st Union in San Mateo, California, United States. The posting gives a salary of $134K - $198K. Posted on Mar 24, 2026, and still on 31st Union’s careers page when we last checked, on Nov 14, 2026.
About the role
, you will design and build flexible, scalable, accessible, and high-performance UI systems using modern UE5 frameworks (CommonUI, MVVM, Enhanced Input), while partnering closely with engineers and cross-disciplinary teams. The ideal candidate has deep experience in all aspects of UI development – including hitch-free resource management, integration with latent backend services, support for a wide set of display…
The opening lines of the posting. The rest is on 31st Union’s careers page.
Hiring at 31st Union
31st Union has 14 open roles right now. Most are in Design, Engineering and Operations. See all its roles
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