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 $123m+ from top-tier investors, including Battery Ventures, General Catalyst, Insight Partners, and Human Capital, and today, Onebrief is valued at $1.1B. With this continued growth, Onebrief is able to make an impact where it matters most.
About the roleWe're hiring a Principal Engineer to lead cross-cutting, high-leverage initiatives; the kind that span multiple teams and shape how we scale. You’ll define bets, align stakeholders, and drive technical strategy beyond your own code.
This is the most senior IC role within Engineering. You’ll partner with Eng Managers, PMs, and Staff+ engineers to architect systems that multiply team effectiveness. Your judgment will guide company-level tradeoffs. And when the moment calls for it, you’ll still roll up your sleeves and build.
This is a role for someone who creates clarity in the fog and is equal parts strategist, architect, and mentor
What you'll doDefine and drive strategic initiatives across multiple teams, often in ambiguous or undefined problem spaces
Shape platform and system architecture to improve reliability, extensibility, and team velocity
Mentor Staff and Senior engineers, guiding through design reviews, initiative framing, and technical alignment
Lead initiative scoping and framing, not just implementation but also helping teams define the right bets
Engage directly in critical implementation, especially where risk is high or leverage is real
Bring clarity to messy contexts, helping others navigate tradeoffs and align
~8 - 12+ years of experience as a Software Engineer and in your most recent roles you're driving technical impact across teams and time horizons
A record of leading multi-quarter initiatives and evolving system architecture
Strong architectural judgment with a tight link to product and business outcomes
Thoughtful, high-context communication thats driven by a desire clarity, not control
A pattern of multiplying others: through systems, standards, and mentorship
The ability to move fast with judgment while knowing when to ship, and when to reshape
Frontend: React, TypeScript, Vite, shared component libraries, client-side observability
Backend: Node.js, PostgreSQL, Redis, secure RESTful APIs
Infrastructure: Kubernetes, AWS, CI/CD pipelines
Integrations: CSV/Excel/KML importers, JWT auth, PDF exports, DoD data systems
Top Skills
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.
Gallery
Onebrief Offices
Remote Workspace
Employees work remotely.
