Senior Frontend Engineer — Real-Time Cyber Ops UI

Twenty Technologies in the United States is seeking a senior frontend engineer to build mission-critical operator interfaces. You will own features end-to-end, craft real-time visualizations, and collaborate across backend, product, design, and operations to ensure reliability in cloud and on-prem environments. You should have 5–8 years of frontend experience with React/Type Script, strong web fundamentals, and a track record of shipping performant UI at scale; this is an on-site role with clear