Staff Game Play Engineer, Battle Road

ABOUT ONEBRIEF Onebrief is collaboration and AI-powered workflow software designed specifically for military staffs. By transforming this work, Onebrief makes the staff as a whole superhuman - meaning faster, smarter, and more efficient. We take ownership, seek excellence, and play to win with the seriousness and camaraderie of an Olympic team. Onebrief operates as an all-remote company, though many of our employees work alongside our customers at military commands around the world. Founded in 2019 by a group of experienced planners, today, Onebrief’s team spans veterans from all forces and global organizations, and technologists from leading-edge software companies. We’ve raised $320m+ from top-tier investors, including Battery Ventures, General Catalyst, Sapphire Ventures, Insight Partners, and Human Capital, and today, Onebrief is valued at $2.15B. With this continued growth, Onebrief is able to make an impact where it matters most. Battle Road Digital, part of Onebrief, applies state-of-the-art innovations and experience from the video game industry to build the future of simulations, modeling, and operations with AtomEngine – our proprietary cloud-based game engine that’s making the world playable. ABOUT THE ROLE As a Staff Gameplay Engineer, you'll be a senior technical leader on the AtomEngine team — setting the architectural direction for gameplay systems, providing cross-team technical guidance, and directly improving the quality and velocity of everything we ship. This is a high-impact individual contributor role with broad organizational influence. WHAT YOU'LL DO - Own and drive gameplay systems architecture across AtomEngine, providing technical direction on complex, cross-cutting problems - Provide architectural input across multiple concurrent projects — raise the quality ceiling and hit rate on feature delivery - Collaborate closely with designers and PMs to shape features from concept through delivery, ensuring technical feasibility, performance, and schedule alignment - Implement and optimize gameplay systems using Godot, GDScript, and C++ - Design with a deep understanding of client/server architecture, state replication, latency, and scale - Partner with QA and testing teams to validate features, identify edge cases, and drive quality outcomes - Mentor mid and junior engineers — invest in the team's growth, not just your own output - Write and maintain clear technical documentation to support long-term maintainability and cross-team collaboration - Balance delivery, quality, and long-term maintainability through sound technical judgment and pragmatic tradeoffs. WHAT WE LOOK FOR - 9+ years of game engine or gameplay engineering experience, with demonstrated Staff or equivalent scope - Deep familiarity with and experience tailoring game engines — Godot, Unity, Unreal, or custom - Sees and cultivates emergent behaviors across multiple interacting systems - Experience shipping and supporting live service games at scale - Proven ability to architect complex gameplay systems and communicate technical decisions to cross-functional stakeholders - Track record of raising engineering quality and velocity across a team, not just within your own work - Demonstrated technical judgment in balancing feature delivery, system quality, technical debt, and long-term investment - Ability to create clarity and drive execution in ambiguous problem spaces - History of simplifying systems, reducing complexity, and improving maintainability - Low ego — you're here to make the product and the team better - U.S. Citizenship required due to federal contract requirements Nice to Haves - Experience with military simulation, constructive modeling, or defense software - Familiarity with entity component systems or simulation-at-scale architecture - Experience working on real-time-strategy (RTS) games - Experience working alongside government customers Notice to Third Party Recruitment Agencies Please note that Onebrief does not accept unso