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Senior Backend Engineer

Location: San Francisco, CA (Hybrid – 3 days/week in-office)
Compensation: $200K–$300K + equity
Visa sponsorship: Available

About the Company

We’re building an AI-first platform that automates e-commerce, acting as a full-stack solution for businesses to sell products online. Customers simply provide what they want to sell, and the platform handles shop creation, marketing, analytics, and optimization — dramatically reducing time and cost compared with traditional solutions like Shopify or Squarespace.

Backed by top investors, we’ve grown from zero to over 3,000 paying customers in less than 18 months. Our product is designed to scale quickly while maintaining high reliability and performance.

Why Join

  • High impact: Architect the backend for systems supporting thousands of customers, ensuring high availability and fault tolerance.

  • Mentorship & leadership: Guide junior engineers while owning critical projects.

  • Rapid growth potential: Work at the intersection of AI and e-commerce, a $1T+ market, with strong exit potential.

  • Innovative tech stack: TypeScript, Node.js, Kafka, Clickhouse, Redis, Postgres, Vercel, Fly.io, Sentry, Mezmo, Grafana.

The Role

As a Senior Backend Engineer, you will:

  • Design and implement backend systems, including ingestion pipelines, distributed carts/hosting, and multi-tenant applications.

  • Improve CI/CD pipelines and deployment stability.

  • Mentor junior engineers on best practices, coding standards, and system design.

  • Contribute to architecture decisions impacting scalability, reliability, and performance of our platform.

Qualifications

Experience:

  • 4+ years in production distributed systems and service-oriented architectures.

  • Experience at top VC-backed startups or degrees from top CS programs.

  • Familiarity with scale-related infrastructure challenges (analytics, payments, event streaming, SaaS).

  • Founder or founding team experience is a plus.

Skills:

  • Strong knowledge of distributed systems, load balancers, caching, databases, APIs, high availability, redundancy, and fault tolerance.

  • Experience with asynchronous systems like Kafka, Clickhouse, or similar.

  • Comfortable in TypeScript/Node.js or willing to learn.

  • Product and customer-focused mindset, with an eye for design and user experience.

Soft Skills:

  • Collaborative and proactive problem-solver.

  • Enjoys mentoring and developing teammates.

  • Can operate as an individual contributor while influencing technical strategy.

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