Senior Software Engineer, Systems

Onebrief
Chantilly, Loudoun County, VA

About us

Onebrief is a revolutionary platform for military staff workflows and operational planning. The software is designed to enable smarter, real-time decisions. With unparalleled collaboration features, AI-enhanced tools, and customizable workflows, Onebrief makes staffs superhuman. The expanding roster of customers includes COCOMs and Service Components worldwide.

Founded in 2019 by a group of experienced planners, today, Onebrief’s workforce of 120+ spans veterans from all forces and global organizations, and technologists from leading-edge software giants. Onebrief’s growth is exemplary, having raised $53M+ and counting from leading venture investors.

What you will achieve

As a Software Engineer, you'll work in close collaboration with our product, design, and tech operations teams. You’ll help Onebrief build AI and integrations within other DoD systems, creating the best military plans inside highly classified environments. You'll be working end to end on our platform, with a primary focus on server side development, designing and managing complex systems for our customers while working alongside our customers in SCIFs. Because of the onsite needs (80% of the time) and client facing nature, you have a military background to help understand our customers and develop with the users in mind. We expect 25% of travel to clients sites and SCIFs, so active security clearance is required at start..

Core Technologies: Node.js, Typescript, Postgres, Redis, Kubernetes, React

About You

The ideal candidate has worked on B2B SaaS applications and has experience in the defense tech ecosystem. Experience in the defense world will help us better understand the challenges our customers are facing, as well as the technology and networks our customers are utilizing.

Qualifications

  • You are a trained and experienced (3+ years) systems or backend engineer, but capable of full-stack development to collaborate with the wider engineering team.

  • You are a stickler for great developer experience and have frequently rolled up your sleeves and found solutions that made the whole team better.

  • You have prior military experience.

  • You are able to attain and maintain an active security clearance.

  • Most importantly, you are a true Onebriefer:

    • You are obsessed with creating value for real users

    • You are ambitious, scrappy, and a creative problem-solver

    • You learn quickly, work iteratively, and naturally seek collaboration

    • You approach your work with integrity, intellectual honesty, and a low ego

    • You communicate frankly, clearly, and succinctly

    • You thrive as a self-starter, embracing autonomy and ambiguity

    • You are a U.S. citizen

Posted 2026-01-16

Recommended Jobs

Manager, Technology Risk Oversight

Capital One
McLean, VA

Manager, Technology Risk Oversight Capital One is one of the fastest growing organizations in the world today, powered by our passion for our customers. We are serious about technology, we dr…

View Details
Posted 2025-12-04

Residential Service Plumber

Work With Your Handz
Charlottesville, VA

Your Expertise, Their Peace of Mind: Residential Service Plumber Opportunity We have been Charlottesville's go-to for keeping homes comfortable for nearly a century. We've got a long history of do…

View Details
Posted 2026-01-14

CNC Machinist

DBS Staffing Services, Inc.
Norfolk, VA

Join Our Team as a CNC Machinist! DBS Staffing Services, Inc. is excited to offer an outstanding opportunity for skilled CNC Machinists. As a family-owned staffing company, we specialize in matchin…

View Details
Posted 2026-01-14

Senior Financial Risk & Audit Leader - Hybrid

PenFed Credit Union
McLean, VA

A leading financial institution is hiring a Senior Financial Risk Management & Accounting Auditor in McLean, Virginia. This role involves planning and executing audits to assess compliance and improv…

View Details
Posted 2026-01-15

Lawn Care Technician

Virginia Green
Roanoke, VA

Job Details Description Position Summary The Service Leader is responsible for providing Lawn care, aeration and seed, tree and shrub care and other services sold by Virginia Green. They make…

View Details
Posted 2026-01-06

County Director

Sparks Group
Richmond, VA

Job Summary/Company : Sparks Group has partnered with a leading international children's charity dedicated to helping kids in need seeking a County Director for their location in the southern tip…

View Details
Posted 2025-12-05

Printer Sales & Service Technician

TyrrellTech
Fredericksburg, VA

TyrrellTech is a growing company, looking for an enthusiastic employee to help with both sales and technical service in the Northern Virginia area. We are looking for someone who would start inside a…

View Details
Posted 2025-12-16

Sr. Manager, Sr. Counsel (Flexpert Program)

Capital One
McLean, VA

Sr. Manager, Sr. Counsel (Flexpert Program) Virtual Open House: January 14th 4:30 EST To kick off our Flexpert hiring process, we invite you to attend our Virtual Open House on Wedne…

View Details
Posted 2026-01-05

Transportation Operator III

Virginia Department of Transportation
Prince George, VA

Job Identification 11355 Job Category Transportation Operations Posting Date 01/06/2026, 01:30 PM Locations Prince George AHQ Apply Before 01/13/2026, 04:59 AM Job Schedule Full time…

View Details
Posted 2025-12-15

Senior Career Repositioning - Remote Work Structure

3 Years On A Rock
Virginia Beach, VA

Shape Your Next Chapter — Remote Leadership & Growth Opportunity You’ve earned your experience through real responsibility — leading people, making decisions, and navigating complexity over time. …

View Details
Posted 2026-01-06