Senior Backend Engineer (Python/FastAPI)

Quick Facts

• Role: Senior Backend Engineer
• Focus: Core backend development for a REST API powering iOS, Android, and Web

Description

Lead backend development for a financial services application handling real money at scale internationally. You will build and evolve a Python (FastAPI) monolith on AWS using Postgres and Redis, and integrate with providers for authentication, ledger, payment rails, and cryptocurrency wallet connectivity.

Responsibilities

• Develop and maintain a high-performance, reliable, and secure backend
• Integrate with cryptocurrency wallet and banking service providers
• Work with technical founders to set engineering standards and architecture

Requirements

• 5+ years building and shipping web applications in Python, Go, or Rust
• Experience across backend systems using Postgres, Redis, AWS, etc.

Benefits

• $200K–$400K cash compensation
• Day 1 impact on partner products used by millions globally
• Shape technical vision and architecture as the company scales
• Own major parts of the product and infrastructure
• Ship fast with minimal corporate overhead