AI-Native Backend Engineer: Build Scalable Systems

reacher; United States; Remote; USD 150,000 - 210,000; Full time

Job summary

Reacher is seeking a senior software engineer who thrives at the intersection of AI and product development. You will own features end-to-end, shape architecture, mentor engineers, and engage directly with customers to turn vague ideas into polished experiences.

You will build scalable backend systems using Python, FastAPI, PostgreSQL, and GCP, write clean code, and drive AI-enabled velocity in a high-urgency environment. Join a post-revenue startup shaping creator tooling.

Qualifications

• 2–6 years of professional full-stack experience at a product-first company or FAANG-level environment.
• Strong AI-native development experience using Claude Code.
• Expert in Python, FastAPI, PostgreSQL, and GCP.
• Ability to design scalable backend systems and mentor engineers.

Responsibilities

• Own and lead product features end-to-end: research, design, implement, test, ship.
• Lead and shape engineering architecture; set code standards.
• Mentor engineers in AI-native workflows and best practices.
• Talk directly to customers and translate requirements into UX.
• Design scalable backend systems (Python, FastAPI, PostgreSQL, GCP).
• Write clean, maintainable, testable code with minimal oversight.
• Drive architectural decisions to boost AI-assisted velocity.
• Ship fast and learn fast in a high-urgency environment.

Skills

AI coding

Python

FastAPI

PostgreSQL

GCP

System design

Code reviews

Prompt engineering

Mentoring

React

TypeScript

Tools

Claude Code

Agent SDK

REST/GraphQL

React ecosystem

Job description

Reacher is seeking a senior software engineer who thrives at the intersection of AI and product development. You will own features end-to-end, shape architecture, mentor engineers, and engage directly with customers to turn vague ideas into polished experiences.

You will build scalable backend systems using Python, FastAPI, PostgreSQL, and GCP, write clean code, and drive AI-enabled velocity in a high-urgency environment. Join a post-revenue startup shaping creator tooling.