Sr. Software Engineer - VC-Backed AI Startups (San Francisco / NYC)

24/7 ProTAS is seeking Sr. Software Engineers to join fast-growing VC-backed startups in San Francisco and New York. Work with cutting-edge AI technologies and modern JavaScript (TypeScript, NodeJS, ReactJS), contributing to high-growth companies backed by $5M-$100M in funding. Ideal candidates have 4-10 years of experience, a Computer Science degree from a top-tier university (MIT, Stanford, UC Berkeley, etc.), and strong startup experience. We value engineers with proven longevity (2+ years per role) and diverse backgrounds. No large-company-only experience. No visa sponsorship. This is an incredible opportunity to innovate at startups poised for major exits (IPO or acquisition).