Senior Frontend Engineer, Video UI
At a glance
Senior Frontend Engineering role at knightscope. Sunnyvale · full-time · $170,000–$200,000 base.
techroles summary, based on the employer's posting.
What you'll do
- Run the Signals video UI codebase through development and maintenance as it moves in-house from its vendor
- Take over product knowledge from the current vendor UX designer
- Coordinate with video and streaming backend engineers to deliver the full streaming experience
- Set the frontend approach to testing, accessibility and performance, then prepare the codebase for another frontend hire
What you bring
- At least seven years working in frontend engineering
- Strong hands-on experience building video interfaces with real-time media players or WebRTC clients
- Deep knowledge of a modern frontend framework, with React preferred
- You can own a customer-facing interface from start to finish
Who this fits
This senior role suits an engineer ready to establish the frontend codebase and standards for a two-person team. It is full-time and on-site in Sunnyvale, California.
From the employer
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
Frontend Engineering work from LinkedIn, X, Reddit and Upwork, in one list.
Each morning you get everything that fits, strongest first.
Frontend Engineering$170k+
Find me workBy the team behind techroles.