Game Engine Engineer, Battle Road

Reposted 6 Days Ago
Hiring Remotely in United States
Remote
150K-220K Annually
Mid level
Software • Defense
Building the future of the military staff.
The Role
The Game Engine Engineer designs and evolves core engine systems for AtomEngine, improving performance and scalability while collaborating with simulation and AI engineers.
Summary Generated by Built In
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

We are looking for a Game Engine Engineer who can operate comfortably across engine subsystems, reason about performance and scale, and conceive and develop thoughtful abstractions.

The Game Engine Engineer implements, and evolves the core systems that power AtomEngine, our proprietary cloud-based game engine for large-scale simulation and modeling. Operating at the foundation of the platform, this role works across engine subsystems to ensure performance, scalability, and correctness as simulation complexity grows, developing and refining engine-level abstractions that support complex entities, behaviors, environments, and runtime systems.

Successful candidates are systems-minded engineers comfortable working near the engine core, navigating ambiguity, and applying strong technical judgment to build clean, composable, and durable foundations rather than one-off solutions.

What You'll Do
  • Design, implement, and evolve core engine systems that power the AtomEngine runtime and editor.

  • Design, build, and maintain complex, reusable engine systems and tools that form the foundation of AtomEngine.

  • Analyze and lead efforts to improve performance, scalability, and stability across the engine and its dependent systems.

  • Balance short-term delivery needs with long-term architectural clarity and maintainability

  • Collaborate closely with simulation engineers, tools developers, and AI engineers to integrate engine capabilities into higher-level systems

  • Contribute to code quality, technical standards, and best practices across the engine codebase

  • Identify technical risks and propose pragmatic solutions that preserve system integrity while maintaining development velocity

What We Look For
  • 3+ years of software engineering experience, with a history of shipping games working across subject areas

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

  • Strong knowledge of standard engineering practices and a high bar for quality

  • 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.

Top Skills

Atomengine
Godot
Unity
Unreal
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The Company
Honolulu, HI
300 Employees

What We Do

Before Onebrief, military planning and collaboration was slow, inefficient, and resource-intensive. Building slides with no version control as partners collaborated would have staffs spend weeks or months on a single product or document.

With Onebrief, these workflows are now simple and collaboration between large commands is efficient. Staff optimization is the key to building a more resilient, more effective military. Today Onebrief users report at least 2x time savings - and growing.

Onebrief is a first of its kind software for the military. While many others have tried to build a solution for this problem, Onebrief’s “card” structure for reusing data and enabling real time updates is what makes this possible. Core features and attributes that make this platform powerful include:
- Global Collaboration
- Real-Time Updates
- AI Automation
- Interoperability + Integrations
- Deployable across Secret and Top Secret Networks

Mission Driven

Onebrief is composed of professionals from backgrounds of all kinds - spanning veterans across forces and organizations, and technologists from leading-edge software giants.

Onebrief is more than just a software platform; it's a mission-driven company dedicated to improving the efficiency and effectiveness of military planning. By joining the team, you'll contribute to solutions that directly support national security and the work of service members.

Your work directly addresses critical challenges that military planners and operators face daily. Every line of code and every design decision contributes to real-world outcomes.

The software was designed and built by a team of experienced planners - lending a nuanced perspective on the challenges our partners face. Our team embeds alongside users - from
the Pentagon to the Indo-Pacific - to build a platform that meets their unique needs.

Rapid, Strategic Growth

Our users love the platform and growth is scaling, most recently reporting operational usage growth at a 19,600% annualized rate. Stronger utilization is underway and we’re at an exciting period of advancement.

As a rapidly growing organization, you'll directly influence its direction and long-term success. Over the past year we’ve seen exciting growth metrics:

First, our headcount has grown 150% YoY to keep pace with our product advancement and customer growth.

Our funding has skyrocketed, most recently raising our Series C, led by top-tier venture investors who have deep expertise in defense tech.

Why Work With Us

Impactful Transformation

At Onebrief, we believe optimizing the military staff is the most impactful thing - on a per-dollar basis - in defense tech right now. This has the potential to save the department of defense billions of dollars and save users countless hours. It’s a longstanding problem that we’re uniquely positioned to solve.

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Onebrief Offices

Remote Workspace

Employees work remotely.

Typical time on-site: None
United States

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