Senior Software Engineer, Full-stack

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 $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 role

As a Senior Software Engineer, you'll work in close collaboration with our product, design, and tech operations teams. You'll be responsible for implementing and refining our realtime collaboration, maps, data visualization, rich text, and presentation features, as well as workflows and integrations—all of which are distinguished by rich and highly interactive user interfaces. This is a hands-on role, but you'll also play a key function in continuously improving our end-to-end architecture and developer experience.

What you'll do

• Own team-level architecture, delivering strategic and tactical software to address defined problems

• Begin to influence work outside of your direct team, solving complex problems impacting performance, features, and product design

• Support and unblock peers through async reviews, pairing, and mentorship

• Work in an async-first way, aligning clearly on scope, tradeoffs, and outcomes

• Build across the stack, using TypeScript/React/Node with PostgreSQL, Redis, and Kubernetes under the hood

What we look for

• 3-5 years of experience as a Software Engineer, including owning meaningful product or platform surfaces

• Experience collaborating across teams to deliver elegant, strategic solutions to defined problems

• A comprehensive understanding of the current state of web technology and best practices

• A track record of shipping in B2B SaaS or similarly demanding domains

• Clear, context-rich communication across PRs, RFCs, and collaborative docs

• Comfort navigating ambiguity and low-process, async environments

• Hands-on experience improving team velocity via tooling or process improvements

Core tech we use

• 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