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Senior Fullstack Developer

Tech
San Francisco, CA | Full-time | Office
Our client is a rapidly scaling, venture-backed startup in San Francisco that’s redefining the way organizations approach hiring and interviews using conversational AI and advanced analytics. They're building a powerful platform used by both candidates and enterprise clients — transforming interviews into actionable data at scale.
We're now seeking a hands-on Full-Stack Software Engineer who thrives in fast-paced, product-led environments and is ready to take ownership of real-world problems across the entire stack.

What You'll Do
This role offers a chance to join an early team shaping the future of hiring tech. You'll collaborate directly with the founders and play a critical role in building scalable solutions for both the candidate-facing product and enterprise dashboard.

Key areas you’ll work on:
🔸 Candidate Experience (AI Interviewing Engine)
  • Optimize real-time performance (aiming for sub-200ms response time)
  • Fine-tune large language models to improve answer quality and reduce hallucinations
  • Build architecture to support scale and concurrency
🔸 Enterprise Platform (Analytics & Integration)
  • Integrate with external hiring systems (ATS, HRIS)
  • Design and build fast, intuitive dashboards to present structured interview data
  • Own and deliver new feature development from concept to deployment

Core Requirements:
  • 5+ years of professional experience building full-stack applications
Strong with:
  • React / Next.js / TypeScript
  • Node.js, Python (FastAPI preferred)
  • Azure, Docker, Kubernetes
  • Experience building scalable systems and APIs
  • Strong fundamentals in system architecture and backend design
Bonus Experience:
  • UI implementation from Figma designs
  • Experience with AI/LLM-based tools
  • Prior work in early-stage startups
  • Background in top-tier engineering teams or universities

This role is a great match if you:
  • Have a builder’s mindset — hands-on, proactive, and focused on outcomes
  • Enjoy solving ambiguous, complex technical problems
  • Thrive in a fast-paced, startup environment where iteration and ownership are key
  • Are curious, self-motivated, and ready to grow with a high-performing team

What’s on Offer
  • Direct involvement in building a product with real-world impact
  • Daily collaboration with visionary founders and senior leadership
  • High growth potential in a breakout startup environment
  • Competitive salary + equity
  • Health insurance, unlimited PTO, and regular team events
  • On-site in SF: full relocation support available (must be work-authorized in the US)
You're welcome!
Fill the form below and we contact you soon
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