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 Game Engine Engineer, you'll play a critical role in shaping the technical direction of AtomEngine, our scalable cloud-based simulation and modeling platform. You will serve as a technical leader for the engine team, driving architectural decisions, establishing engineering standards, and guiding the evolution of the core platform that enables simulation, AI, and modeling capabilities across the company.
In this role, you'll partner closely with engineering leadership and cross-functional teams to balance near-term product needs with long-term platform investments, ensuring AtomEngine remains performant, scalable, and extensible as the platform grows.
Key Responsibilities
Define and drive the technical vision and architecture of AtomEngine, ensuring the platform can support current and future simulation, AI, and modeling requirements.
Lead the design and evolution of core engine systems, frameworks, and developer tooling, establishing patterns that enable multiple teams to build effectively on the platform.
Own architectural decisions spanning engine runtime, editor tooling, performance infrastructure, and platform scalability.
Identify and drive high-leverage investments that improve performance, reliability, maintainability, and developer productivity across the engine ecosystem.
Lead complex technical initiatives that span multiple teams, aligning stakeholders and driving execution from concept through delivery.
Partner with simulation, AI, platform, and product engineering teams to ensure engine capabilities effectively support higher-level systems and organizational priorities.
Establish and champion engineering standards, architectural principles, and development best practices across the engine codebase.
Serve as a technical mentor and force multiplier for other engineers through design reviews, technical guidance, and knowledge sharing.
Proactively identify technical risks, architectural bottlenecks, and scaling challenges, developing pragmatic strategies to address them before they become constraints.
Balance short-term delivery objectives with long-term platform strategy, making thoughtful tradeoffs that maximize both engineering velocity and system health.
9+ years of professional software engineering experience, including significant experience developing game engines, simulation platforms, or other performance-critical systems.
Demonstrated experience owning the architecture and technical direction of large-scale engine, platform, or infrastructure systems.
Deep understanding of game engine architecture, including rendering, ECS frameworks, data-oriented design, tooling, asset pipelines, or runtime systems.
Proven track record leading complex technical initiatives that require alignment across multiple teams and stakeholders.
Strong experience optimizing performance, scalability, reliability, and developer workflows in large codebases.
Experience establishing engineering standards, conducting architecture reviews, and influencing technical decision-making beyond your immediate team.
Strong systems-thinking skills with the ability to evaluate long-term platform tradeoffs and investment opportunities.
Familiarity with modern game engines such as Godot, Unity, Unreal Engine, or equivalent technologies.
Experience shipping and supporting complex live-service products.
Due to federal contract requirements, U.S. Citizenship is required for this position.
Nice to Have
Experience with military simulation, constructive modeling, or defense software
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 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.
Skills Required
- 9+ years of professional software engineering experience, including significant experience developing game engines, simulation platforms, or other performance-critical systems.
- Demonstrated experience owning the architecture and technical direction of large-scale engine, platform, or infrastructure systems.
- Deep understanding of game engine architecture, including rendering, ECS frameworks, data-oriented design, tooling, asset pipelines, or runtime systems.
- Proven track record leading complex technical initiatives that require alignment across multiple teams and stakeholders.
- Strong experience optimizing performance, scalability, reliability, and developer workflows in large codebases.
- Experience establishing engineering standards, conducting architecture reviews, and influencing technical decision-making beyond your immediate team.
- Familiarity with modern game engines such as Godot, Unity, Unreal Engine, or equivalent technologies.
- Experience shipping and supporting complex live-service products.
- Strong systems-thinking skills with ability to evaluate long-term platform tradeoffs and investments.
- U.S. Citizenship (required due to federal contract requirements).
- Experience with military simulation, constructive modeling, or defense software.
- Experience working on real-time-strategy (RTS) games.
- Experience working alongside government customers.
Onebrief Compensation & Benefits Highlights
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Leave & Time Off Breadth — Feedback suggests unlimited PTO, paid holidays and sick time, plus company‑wide vacations are prominent parts of the package. These offerings indicate ample flexibility to take time away from work.
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Flexible Benefits — A remote‑first setup with flexible schedules is emphasized, and a dedicated home‑office stipend supports effective remote work. These elements point to strong day‑to‑day flexibility and location autonomy.
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Retirement Support — Benefit summaries describe a 401(k) with employer matching. This indicates tangible support for long‑term financial planning.
Onebrief Insights
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.
We’re a fully remote organization - and believe it makes us a more powerful team. We bring together incredible professionals without the constraints of time zones or personal circumstances.
