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Founding Backend Engineer (Rust)

Renumerate
San Francisco, CA Full Time
POSTED ON 12/19/2025
AVAILABLE BEFORE 1/18/2026
Onsite Hybrid — San Francisco, CA

160,000 – 225,000 USD per year Equity

About Renumerate

We’re a venture-backed Bay Area team on a mission to leverage AI in a practical way to help consumer-focused subscription companies drive better customer retention and gain real-time insight into what motivates their subscribers to stay.

Build the future of customer retention

Chances are you’ve subscribed to a product or service—and chances are higher you’ve seen a terrible cancellation workflow. What if the experience was seamless for both businesses and subscribers? That’s where Renumerate comes in.

We’re looking for a Founding Backend Engineer to architect the systems, infrastructure, and AI-powered workflows that will power our platform.

As Our Founding Backend Engineer, You’ll

  • Design and build the core backend services and APIs for our product.
  • Lead development in Rust with PostgreSQL and cloud infrastructure.
  • Partner with ML engineers to integrate AI-driven insights and automation.
  • Build scalable systems to handle subscription data, retention experiments, and real-time reporting.
  • Establish backend engineering best practices, deployment pipelines, and architecture foundations.
  • Collaborate closely with frontend and product to ship features quickly and reliably.

Our stack today: Rust, PostgreSQL, React, and constrained AI for retention insights.

You Might Be a Great Fit If You Have

  • 3 years of experience building backend systems and APIs.
  • Proficiency in Rust (or a strong systems/backend language and willingness to dive deep into Rust).
  • Experience with cloud platforms (AWS, GCP, or similar) and deployments.
  • Comfort with databases like PostgreSQL and data modeling.
  • Excitement about building resilient, high-performance infrastructure from scratch.
  • (Bonus) Familiarity with subscription/e-commerce/payment systems.
  • (Bonus) Experience with ML/AI integrations.

What We Offer

  • Competitive salary: 160,000 – 225,000 USD per year
  • Meaningful equity ownership in the company
  • Medical, dental, and vision insurance
  • 401k
  • A role where you shape the company, culture, and product from day one

Salary : $160,000 - $225,000

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