Senior Backend-Focused Fullstack Engineer

Senior Backend-Focused Fullstack Engineer

Compensation : $160K$250K base + equity

Location : San Francisco, CA (Hybrid : 23 days onsite / week)

Visa Sponsorship : Not available

Who are we?

Were a high-growth, venture-backed AI startup scaling rapidly from 7-figure to 8-figure revenue. With a lean, high-caliber engineering team and a Series B raise around the corner, we’re building systems that support thousands of concurrent AI agents interacting in real time. You’ll join us as one of the first 30 employees, working directly with the CTO and founding team to build the infrastructure powering our next stage of growth.

Why Join Us?

Rapid growth : from 7-figure to 8-figure revenue by end of year

• Series A backed by top-tier investors; Series B in motion
• Total ownership over your work and technical decisions
• Equity upside in a company with real traction and unicorn potential
• Work alongside top-tier engineers in a collaborative, high-output team
• Solve cutting-edge infrastructure challenges in AI deployment at scale
• Tackle systems that support millions of user interactions daily

Ideal Candidate Profiles

About the Role

You’ll design and scale backend systems that keep thousands of concurrent AI agents communicating with minimal latency. You’ll help us auto-scale AI workloads, harden our infrastructure, and tackle high-throughput, low-latency challenges.

If you love building, want to take ownership, and are hungry to solve real-world AI problems at scale this is your moment.

Responsibilities

Must-Haves

We're only advancing candidates who meet most of the following :

Cultural alignment : high agency, low ego, work ethic

Be prepared to answer these questions

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