Senior Engineering Manager, Frontend Platform

Summary

Join Onebrief's dedicated team as a Senior Engineering Manager to lead the Frontend Platform team, responsible for the internal UI platform powering all Onebrief interfaces. You will collaborate with Product, Design, and other Engineering teams to ensure a consistent, reliable, and scalable user interface experience. Lead the evolution of the design system, UI libraries, and shared frontend tooling. Improve frontend developer workflows and reduce friction for engineers. Grow, mentor, and lead a team of frontend-focused engineers. This role requires strong leadership, frontend engineering expertise, and a collaborative approach.

Requirements

• 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

Responsibilities

• Lead the evolution of our design system, UI libraries, and shared frontend tooling to enable consistent and performant user experiences
• Collaborate with stakeholders to improve frontend developer workflows and reduce friction for engineers building product surfaces
• Partner with Product Designers, Engineers, and QA to guide architectural decisions and ensure reusable patterns
• Grow, mentor, and lead a team of frontend-focused engineers. Foster a healthy, inclusive, and high-performing team culture

Preferred Qualifications

• 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