Jobs · Engineering · California

Founding Product Engineer

SF Tensor · San Francisco, CA · 8 mo ago
On-siteEngineering$225k–$275k/yrFull-time

Job Summary

We are seeking a Founding Product Engineer to own the entire user-facing surface of our training platform. This role requires taking vague features and shipping them from start to finish, focusing on both the technical and user experience aspects.

About the Role

This role involves taking ownership of product areas, from scoping to building and iterating. You will be responsible for creating clean, fast, and polished web interfaces with Next.js, writing backend services in Bun/TypeScript, deploying and managing infrastructure on AWS, and obsessing over the small details that make a product great.

Responsibilities

  • Take full ownership of product areas: scoping, designing, building, and iterating on them
  • Build clean, fast, polished web interfaces with Next.js that feel almost native
  • Write simple, performant backend services in Bun/TypeScript
  • Deploy and manage infrastructure on AWS (EKS, S3, and the usual suspects) using Kubernetes
  • Obsess over the small things, from loading states, smooth animations, solid error handling to edge cases
  • Make smart product tradeoffs with little hand-holding: know when to ship fast and when to spend extra time polishing
  • Help shape our product culture and engineering standards as one of the first engineers on the team

Requirements

  • Proven experience shipping complete products, not just individual features
  • Serious frontend skills: you're very comfortable with React/Next.js, CSS, and modern web APIs
  • A sharp eye for design and motion: you notice when an animation eases awkwardly, when padding feels inconsistent, or when something just looks cheap
  • Solid backend chops: you can build APIs, work with databases, and troubleshoot production issues
  • Enough infrastructure comfort to handle AWS, containers, and Kubernetes
  • Ability to move independently in ambiguous situations
  • Real taste. You have strong opinions (and reasons) about what makes software feel good to use
  • Experience with Bun, or eagerness to dive in
  • Background in developer tools, infrastructure products, or building for technical users
  • Familiarity with Cloudflare (Workers, R2, etc.)
  • Time spent at early-stage startups or as an early employee
  • Open-source contributions or a public portfolio you're proud of
  • Comfort using design tools like Figma to mock things up yourself when needed

Qualifications

You should have a background in developer tools, infrastructure products, or building for technical users. Experience with Bun, or eagerness to learn it, is a plus. Familiarity with Cloudflare (Workers, R2, etc.) is also beneficial.

Benefits

The base salary range for this full-time position is $225,000 - $275,000 + bonus + equity + benefits. Relocation assistance is offered.

Pay

$225K - $275K

Schedule

Full-time

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