Senior Frontend Engineer, Video UI

About Knightscope  Knightscope (NASDAQ: KSCP) is a security technology company building the nation's first Autonomous Security Force: autonomous machines, AI-driven software, and elite security professionals operating as one integrated managed service. The Company is on a mission to make the United States of America the safest country in the world. One Team. One Force.  Job Summary  You will own the Signals video UI, the primary customer-facing surface of the Signals platform, as we bring it in-house from a third-party vendor. You will be the first of a two-person frontend team, setting the standards and codebase that the second engineer will build on.  Location: ONSITE - Sunnyvale, CA About the Role  You will own the Signals video UI, the primary customer-facing surface of the Signals platform, as we bring it in-house from a third-party vendor. You will be the first of a two-person frontend team, setting the standards and codebase that the second engineer will build on.  Key Responsibilities  - Own the Signals video UI codebase and development lifecycle.  - Lead knowledge transfer from the current vendor UX designer.  - Partner with the video/streaming backend team on end-to-end streaming experience.  - Establish frontend standards for testing, accessibility, and performance.  - Prepare the team and codebase for the paired frontend hire later in 2027.  Required Qualifications  - 7+ years in frontend engineering.  - Strong experience with real-time video UI (WebRTC clients, media players).  - Deep experience with a modern frontend framework (React preferred).  - Accessibility and performance-first mindset.  - Comfort owning a customer-facing surface end to end.  Nice to Have  - Security or surveillance product UI experience.  - Design system authoring experience.  - Prior work inheriting a codebase from a vendor or design agency.  Compensation and Benefits  Base Salary: $170,000 to $200,000 (DOE)  Equity: Stock options  Benefits: Medical, dental, vision, 401(k), paid time off  Location Requirement: Full-time, on-site at Sunnyvale HQ