Customer Success Engineer, Battle Road [Ft. Leavenworth] - Relocation Provided

Onebrief; Leavenworth (KS); On-site; USD 90,000 - 120,000; Full time

Job summary

Onebrief is seeking a Customer Success Engineer to work directly onsite at Ft. Leavenworth. This role focuses on deploying cutting-edge military modeling and simulation technology to enhance training environments. The ideal candidate will have over 3 years of experience in software engineering, possess strong coding skills in languages such as C# and Python, and hold an active Secret or Top Secret security clearance. This mission-facing position offers a unique opportunity to directly impact military operations and train leaders effectively.

Qualifications

• 3+ years of professional experience in software or solutions engineering.
• Experience writing and maintaining production-quality code.
• Proficiency in at least one general-purpose programming language.

Responsibilities

• Deploy AtomEngine into live military training environments.
• Work directly onsite at Ft. Leavenworth, embedded with customers.
• Write code to develop features and capabilities for AtomEngine.

Skills

Software engineering

Solutions engineering

Technical customer facing

C#

Python

C++

GDScript

Systems thinking

Problem solving

Job description

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 $320 m+ from top‑tier investors, including Battery Ventures, General Catalyst, Sapphire Ventures, Insight Partners, and Human Capital, and today, Onebrief is valued at $2.15 B. With this continued growth, Onebrief is able to make an impact where it matters most.

Position Overview

At Battle Road by Onebrief, we’re building the next generation of military modeling and simulation technology through AtomEngine, our modern, game‑engine‑based platform. We are replacing decades‑old legacy systems with a more accurate, flexible, and operationally relevant simulation environment. Our technology is already being used in major U.S. military training exercises and command environments. We are seeking a Customer Success Engineer who wants their technical work to directly influence how military leaders train, plan, and make decisions. This is not a traditional customer success role. This is mission‑facing engineering.

About The Role

As a Customer Success Engineer, you operate at the intersection of engineering and mission execution. You deploy into real‑world military training environments, including Secret and air‑gapped systems. You develop features for, extend, and configure AtomEngine iteratively onsite with customers. You may be standing in front of senior officers, fielding questions, adapting simulations live, and ensuring customers achieve their goals on the platform. You are the last mile between cutting‑edge simulation technology and the warfighter. If you take pride in how you show up, remain composed in challenging environments, and enjoy earning trust and building advocates, this role will challenge and reward you.

Location Requirement: Ft. Leavenworth

Work directly onsite at Ft. Leavenworth, embedded with customers.

What You Will Do

• Deploy AtomEngine into live military training environments, including classified and air‑gapped systems
• Work directly onsite at Ft. Leavenworth, embedded with customers to learn their needs and iterate alongside them
• Write code to develop capability at the edge, prototyping and implementing new AtomEngine features that help customers achieve their goals via both the Mod Kit and source control branches
• Partner with the core product & engineering teams to learn the code base and drive changes back to the mainline
• Configure and adapt entities, behaviors, and operational scenarios to reflect real‑world requirements
• Troubleshoot technical issues in real time during high‑visibility exercises, sometimes in front of large audiences
• Teach technical concepts clearly to mixed technical and non‑technical audiences, helping military stakeholders understand not just how the platform works, but why it works
• Engage constructively with key stakeholders and respond to challenging questions with clarity and professionalism
• Translate real‑world friction into actionable feedback for Product and Engineering
• Improve documentation and repeatability so deployments scale over time
• Occasional Travel (approximately 20%)

What Makes This Role Different

• You will operate in rooms where decisions matter
• You will help replace legacy systems that have been in place for decades
• You will represent Battle Road daily to officers, colonels, and generals
• You will see your work applied in real‑world training environments

What We Look For

• 3+ years of professional experience in a software engineering, solutions engineering, or technical customer‑facing role involving hands‑on development
• Demonstrated experience writing and maintaining production‑quality code, including extending existing frameworks, SDKs, or plugin systems
• Proficiency in at least one general‑purpose programming language used for application or game‑adjacent development (e.g., C#, Python, C++, GDScript, or similar)
• Strong systems thinking and understanding of modular, maintainable software design
• Comfort working with customers face‑to‑face to debug, iterate, and validate solutions in real‑world environments
• Self‑directed and effective in fast‑moving, ambiguous environments
• Active Secret or Top Secret security clearance
• Willingness and ability to work from Ft. Leavenworth
• Willingness and ability to travel occasionally (20%)

Preferred Qualifications

• Experience presenting or teaching technical concepts to large groups
• Experience in modeling, simulation, game engines, or defense‑related systems