Senior Engineering Manager, Frontend Platform

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.

We’re looking for a talented Senior Engineering Manager to lead our Frontend Platform team. This team is responsible for the internal UI platform powering all Onebrief interfaces, including our shared design system, component libraries, and core and common functionality. You will work closely with Product, Design, and other Engineering teams to ensure the consistency, reliability, and scalability of the user interface experience across the application. Your team’s work enables all other client side engineering teams to build faster and better.

At Onebrief, your contributions will directly support safer and more effective military operations globally. Join a dedicated, talented team driven by excellence, innovation, and meaningful mission impact.

You enjoy being a people manager and excel at leading teams through complex architectural and organizational changes. You have a strong foundation in frontend technologies and a passion for enabling other teams. You care deeply about developer experience, UI consistency, and scalable infrastructure. Your approach is strategic and thoughtful, and you thrive in a highly collaborative, async-first environment.

• Frontend Platform Development: Lead the evolution of our design system, UI libraries, and shared frontend tooling to enable consistent and performant user experiences.

• Developer Experience: Collaborate with stakeholders to improve frontend developer workflows and reduce friction for engineers building product surfaces.

• Cross-Team Collaboration: Partner with Product Designers, Engineers, and QA to guide architectural decisions and ensure reusable patterns.

• Team Building: Grow, mentor, and lead a team of frontend-focused engineers. Foster a healthy, inclusive, and high-performing team culture.

• 3+ years managing engineers, including hiring, performance management, and career growth

• Proven experience coaching engineers and building healthy team dynamics

• History of leading cross-functional initiatives with Product and Design

• 5+ years of frontend engineering experience, ideally in modern JavaScript frameworks (React preferred)

• Strong understanding of shared UI systems (design systems, component libraries) and DX tooling

• Experience navigating release processes, breaking changes, and long-term migration plans

• Track record of improving developer experience through tooling, documentation, and performance enhancements

• Experience owning long-lived infrastructure that supports multiple product teams

• Familiarity with observability, automated testing, and frontend CI/CD best practices

• Clear, thoughtful communicator who writes well and aligns teams asynchronously

• Comfortable navigating ambiguity and surfacing tradeoffs in architectural decisions

• Brings a collaborative, low-ego leadership style focused on building trust and shared clarity

• Experience with platform teams or shared UI infrastructure

• Background in developer tools or performance-focused engineering

• Familiarity with military, govtech, or other high-trust or regulated environments

Compensation Range: $225K - $275K