Job title: Senior Backend Engineer
Job type: Permanent
Emp type: Full-time
Salary type: Annual
Salary: USD $250,000.00
Location: San Francisco, CA
Job ID: 35355

Job Description

Senior Backend Engineer (AI + Devtools)

Stealthy, Hyper-Growth AI Startup

San Francisco – Onsite 3 days/week

$250k base + 0.1–0.4% equity + Visa Support (H1B / TN)

$27.5M Funding

 

This isn’t your average backend role.

We’re working with a stealthy, fast-growing AI startup that’s fundamentally rewriting the rules of enterprise document workflows. Their platform isn’t just parsing documents—it empowers developers to build intelligent agents that reason, act, and scale over hundreds of millions of documents. With 4M+ open-source downloads monthly, Fortune 500 clients are already relying on their infrastructure.

They’re looking for a Backend Engineer (4+ yrs experience) who thrives in early-stage, high-velocity environments and can own backend systems end-to-end, from prototype to production. Bonus if you’ve shipped AI/LLM-native applications or contributed meaningfully to open-source projects.

 

What You’ll Own:

  • Build & Scale: Take core APIs and backend services from concept → production, handling millions of documents.

  • Full Lifecycle Ownership: Lead backend projects, design robust systems, and translate user feedback into impactful features.

  • Collaborate at the Top: Work closely with product, engineering, and enterprise customers to shape the roadmap.

  • Tech Stack Leadership: Python, Kubernetes, Terraform, Postgres, Temporal, and the freedom to innovate at scale.

 

What They’re Looking For:

  • Proven Backend Experience: 4+ years building and shipping APIs or backend services in production.

  • Startup Pedigree: Early-stage experience (Pre-Seed → Series B) with rapid career growth.

  • AI / LLM Exposure: Experience building AI-native apps, developer tooling, or B2B infrastructure.

  • Technical Fluency: Python backend, Docker/Kubernetes/Helm, Postgres, Terraform, Temporal.

  • Soft Skills: Scrappy, adaptable, articulate, and excited to own real impact in a fast-moving environment.

 

Why This Role is Special:

  • Impact at Scale: Infrastructure processing 200M+ documents per month, with 4M+ downloads of the open-source framework.

  • Fast-Growth Startup: $27.5M funding, backed by top-tier investors, and scaling aggressively.

  • Equity & Pay: Up to $250k base + 0.1–0.4% equity, your work grows with the company.

  • Visa Support: H1B transfers & TN visas available, open doors for international talent.

 

This is your chance to architect the backbone of enterprise AI, work with cutting-edge technology, and make a visible impact from day one.

 

Apply now to help build the future of AI-powered enterprise workflows.