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# Full Stack Engineer (Backend-Leaning)

- **Company:** David Joseph & Company
- **Location:** San Francisco, CA, United States
- **Experience:** Experienced
- **Salary:** $120,000.0 - $200,000.0
- **Contract:** Permanent contract
- **Skills:** User Authentication, Software Debugging, Distributed Systems, Python (Programming Language), OAuth, Systems Integration, TypeScript, Large Language Models, Backend, Information Technology, Front End Software Development, Webhooks
- **Published:** October 22, 2026
- **Apply:** https://www.thejobnetwork.com/job/a43d437d-8e6d-4bac-b57a-5e577bf01e6f/full-stack-engineer-backendleaning

## About the Role

* 2-4 years of experience as a backend-leaning full-stack software engineer.
 * A track record of building and running production systems used by enterprise customers.
 * Professional, hands-on experience with TypeScript.
 * Genuine full-stack comfort across both backend and frontend, with Python as the primary backend language.
 * Experience at an early-stage startup (roughly under 50 people) with real, hands-on ownership.
 * A bachelor's degree in Computer Science or a closely related field.
 * Authorization to work in the US as a citizen, green card holder, or on OPT with several years of runway remaining. This role does not offer visa transfer or sponsorship.

Nice to Haves

 * A background as a founder, or an active hackathon builder.
 * Prior exposure to agent evaluation, LLMs, or evals/QA work.

## Description

This is a backend-leaning full-stack role (roughly a 90/10 backend-to-frontend split) building the systems behind the platform and its next generation of agent products. Most of the challenge lives in the backend: data modeling, queues, execution pipelines, integrations, observability, reliability, and debugging distributed workflows. You should also be comfortable taking a feature through the full stack and shipping the product surface that makes the underlying system useful. You will have real ownership over architecture and product decisions and work closely with a small, highly technical team and enterprise customers.

What you'll be doing

 * Build the backend systems powering an agent evaluation and continuous-improvement platform.
 * Shape the data models behind evaluation datasets, experiment runs, agent traces, knowledge versions, and customer-defined quality criteria.
 * Own enterprise integrations end to end: authentication, OAuth, webhooks, incremental syncs, backfills, rate limits, schema changes, retries, monitoring, and production support.
 * Own features from technical design through deployment, monitoring, customer feedback, and iteration.
 * Work directly with customers to diagnose failures and turn one-off needs into reusable product capabilities.

Tech stack: Python, TypeScript, distributed systems, enterprise integrations; relational and vector databases.