Principal Software Engineer, Onebrief
Full-stack
$215-265k
+ Equity
Operating system for military command
Open for applications
Operating system for military command
201-500 employees
Open for applications
$215-265k
+ Equity
201-500 employees
Company mission
To enable faster, smarter decisions, by syncing data across all products in real-time.
Role
Who you are
- 15+ 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
What the job involves
- We'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
- Define 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
- 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
Our take
Onebrief is transforming military planning with its software platform, which simplifies and speeds up operational tasks for US military headquarters worldwide. The platform enhances decision-making and streamlines complex planning, supporting various missions from defense to humanitarian aid.
The company has continuously updated its offering, for example by launching an API for better integration with other military tools, and developing offline access for remote use. It has also added AI features as part of continued innovation to meet the evolving needs of military users.
Onebrief has secured substantial funding which has allowed it to grow significantly. The latest round, secured in early 2026, will support rapid scaling and comes alongside the company's acquisition of Battle Road Digital, a leading defense innovation company applying gaming technology to defense and national security challenges.
Kirsty
Company Specialist at Welcome to the Jungle
Company
Funding (last 2 of 7 rounds)
Jan 2026
$200m
SERIES D
Jun 2025
$20m
SERIES C
Total funding: $344.2m
Company HQ
Aliamanu - Salt Lakes - Foster Village, Honolulu, HI
Leadership
Grant Demaree
(Co-Founder & CEO)Mentor at Alchemist Accelerator. Their career spans leadership in the 101st Airborne Division and strategic roles in international operations.
Share this job
View 21 more jobs at Onebrief