Consequential Work. Dedicated People.

About Onebrief

Onebrief builds collaboration and AI-powered workflow software for military planning and operational coordination.

Today, many critical planning workflows still rely on fragmented systems, static documents, and disconnected tools that make collaboration and decision-making unnecessarily difficult. Onebrief brings modern software, AI, and real-time collaboration into those environments, helping teams operate with greater clarity, coordination, and adaptability in situations where decisions carry real-world consequences.

We are a distributed team of builders from military, operational, and technology backgrounds who care deeply about improving how important work gets done. Some team members work remotely, while others work directly alongside customers in operational environments around the world.

Founded in 2019, Onebrief is backed by leading investors including General Catalyst, Battery Ventures, Insight Partners, Sapphire Ventures, and Human Capital. Valued at more than $2 billion, we continue to invest in product innovation, AI capabilities, and team growth.

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

We are looking for a Game Play Engineer who loves solving cutting-edge technical challenges to deliver great player experiences.

As a Gameplay Engineer, you’ll join a team of experienced game developers building AtomEngine, our scalable cloud-based simulation and modeling platform. In this role, you’ll work with our awesome team, building new gameplay systems and user experiences.

What You'll Do

• Collaborate closely with designers to iterate on gameplay concepts and specifications, ensuring features are technically feasible, performant, and deliverable within schedule constraints

• Implement new gameplay systems and player-facing features in AtomEngine using Godot, GDScript, and C++

• Profile, analyze, and optimize gameplay systems to ensure high performance and responsiveness across a range of scenarios and scales

• Design gameplay features with a practical understanding of where logic lives (client vs server), how state is replicated, and how latency and scale impact gameplay behavior and player experience

• Partner with QA and testing teams to validate features, identify edge cases, and iterate on bugs related to gameplay correctness, performance, and user experience

• Write and maintain clear technical documentation describing system behavior, interfaces, dependencies, and constraints to support collaboration and long-term maintainability

What We Look For

• 3+ years of game engine or gameplay engineering experience, with experience both shipping and supporting live service games

• Familiarity with popular game engines (Godot, Unity, Unreal)

• Experience optimizing performance of systems

• A mindset focused on player experience at massive scales

• Due to federal contract requirements, U.S. Citizenship is mandatory for this position.

Notice to Third Party Recruitment Agencies
Please note that Onebrief does not accept unsolicited resumes from recruiters or employment agencies. In the absence of an executed Recruitment Services Agreement, there will be no obligation to any referral compensation or recruiter fee. In the event a recruiter or agency submits a resume or candidate without an agreement Onebrief explicitly reserves the right to pursue and hire those candidate(s) without any financial obligation to the recruiter or agency. Any unsolicited resumes, including those submitted to hiring managers, shall be deemed the property of Onebrief.