> Markdown version of [/jobs/ext/4694833-helix-ai-engineer-backend](https://www.wearedevelopers.com/jobs/ext/4694833-helix-ai-engineer-backend). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Helix AI Engineer, Backend

- **Company:** FIGURE, INC.
- **Location:** San Jose, CA, United States
- **Experience:** Expert
- **Salary:** $200,000
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Software as a Service, Continuous Integration, Django Web Framework, Python (Programming Language), Software Engineering, Systems Integration, Twilio, Scripting, ReactJS, Flask (Web Framework), Backend, Fastapi, Vue.js, Stripe, Webhooks
- **Published:** November 12, 2026
- **Apply:** https://www.careerbuilder.com/job-details/helix-ai-engineer-backend-san-jose-ca--edc35f08-50e6-4900-961b-3f868c21ba73

## About the Role

Artificial Intelligence (AI), Robotics, Artificial Intelligence (AI), Human Intelligence (HUMINT), Application Programming Interface (API), Business-to-Business (B2B), Python Programming/Scripting Language, Product Development, Customer Relationship Management (CRM), Billing, * 5+ years of software engineering experience, including 3+ years building production backend systems

 * Senior-level, hands-on IC who still writes and ships code every day
 * Strong Python backend experience (Django, FastAPI, Flask, or similar), or Go with a willingness to work in Python
 * Real product experience with React or a similar framework (Vue, etc.), leaning backend
 * Experience shipping integrations with third-party platforms and APIs in a B2B or SaaS product
 * Experience building product features that involve payments, such as integrating Stripe or another processor for checkout, invoicing, or billing
 * A track record of fast shipping at a startup or on a small team, with dated launches you can point to
 * Hands-on experience running services on AWS or GCP with containers and CI/CD
 * Able to work onsite in San Jose 5 days a week

Bonus qualifications:

 * Deeper B2B billing experience: usage or invoice-based billing, payouts, idempotency, and reconciliation
 * Experience with the WhatsApp Business API, Twilio, or similar messaging platforms
 * Early engineer at a B2B SaaS startup who helped take a product from zero to paying customers

## Description

* Design, build, and ship production backend services and APIs in Python (Go welcome)
 * Build product-facing web features in React alongside the backend
 * Integrate with external platforms, starting with the WhatsApp Business API, plus messaging, CRM, and partner APIs
 * Ship the payment side of the product: checkout and invoicing flows, processor integrations like Stripe, webhooks, and keeping customer billing accurate
 * Own your services in production on AWS or GCP, including containers, CI/CD, monitoring, and cost
 * Work directly with product and customers to scope, ship, and iterate on 0-to-1 features