Skip to content
CirclebackCirclebackSan Francisco, CA

Senior Software Engineer

Senior Product Engineer who owns problems end-to-end: deciding on the right product and technical approach, building full-stack features across web, desktop, mobile, and backend, then shipping to paying customers. Requires 3-5 years shipping experience, strong product sense, and AI-native curiosity at a fast-moving YC startup.

170k – 250k/yr
On-site5+ YOEFullstack Engineering

About the role

What you'll do

  • Take on a problem, figure out the right approach, build it across the full stack, and ship it.
  • Understand how a feature connects to everything else, both technically and from a product standpoint.
  • Ship across web (React, Next.js), desktop (Electron, Swift), mobile (React Native), and backend.
  • Work on AI-powered outcomes, search, transcription, on-device recording, performance, and automations.
  • Experiment with new AI models and techniques.
  • Raise the bar for the team through code review and building reusable tools.
  • Ship real features to thousands of paying customers every week.

Who you are

  • 3-5 years of experience building and shipping software, preferably at startups.
  • Made real decisions about the right product and technical approach.
  • Eye for detail with strong opinions about how things should work.
  • Think about how something fits into the bigger picture.
  • Drawn to work that compounds.
  • Curious how great products work.
  • AI-native and at the frontier of how software gets built.
  • Always looking for ways to get better at doing the work.

Why join

  • Ship fast with a high bar for quality.
  • Small team, large problem in a new product category.
  • Profitable and growing virally.
  • Build software that people love and use daily.
  • Care about craft and want to build something ambitious with a small, fast-moving team.

Skills

ReactNext.jselectronSwiftReact Nativeai modelssearchtranscriptionautomations

Similar roles

Fullstack Engineering jobs
Snowflake

Senior Software Engineer

SnowflakeVirginia

Senior Software Engineer building and maintaining scalable distributed systems, Kubernetes platforms, and secure cloud infrastructure for Snowflake's National Security (NatSec) public sector customers in air-gapped environments. Requires active TS/SCI clearance with Polygraph, 7+ years experience, and strong cloud/distributed systems expertise.

170k – 245k/yrHybrid7+ YOEFullstack Engineering
Circleback

Senior Software Engineer

CirclebackSan Francisco, CA

Senior full-stack engineer building AI-powered meeting notes, search, and workflows at a YC-backed startup. Own ambiguous problems end-to-end across web, desktop, and mobile; set technical direction and raise the engineering bar.

170k – 250k/yrOn-site5+ YOEFullstack Engineering
Office Hours

Senior Software Engineer, Search & Discovery

Office HoursSan Francisco, CA +1

Senior engineer to own end-to-end search, discovery, and recommendations for an expert matching platform, including data indexing, relevance/ranking, knowledge graphs, and LLM-assisted features. Requires 6+ years software engineering experience with strong backend skills and search/recommendation background.

170k – 220k/yrHybrid6+ YOEFullstack Engineering
Prove AI

Senior Software Engineer, Identity Platform

Prove AINew York, NY +3

Senior Software Engineer building scalable microservices and event-driven platforms for Prove's phone-centric identity verification and fraud detection services. Requires 6+ years experience, strong Java/OOP, cloud, and database skills; prefers Kafka, Flink, React.

170k – 210k/yrRemote6+ YOEFullstack Engineering
Neon

Senior Software Engineer

NeonNew York, NY

Senior full-stack engineer building and scaling a payments and e-commerce platform for game publishers. Requires 5+ years experience with strong React and TypeScript skills, plus experience leading projects.

170k – 190k/yrOn-site5+ YOEFullstack Engineering