Staff Backend Engineer (Fin tech)

Hiring Hub; San Francisco (CA); On-site; USD 200,000 - 400,000; Full time

Benefits offered by this job

Day 1 impact on global products

Opportunity to own technical vision

Ground-floor involvement in stablecoin ecosystem

Job summary

A rapidly growing fintech company in San Francisco seeks a Senior Backend Engineer. You will lead core backend development, designing and scaling systems that power applications and integrate with cryptocurrency wallets and banks. The ideal candidate has over 5 years of experience with Python, Go, or Rust, and proven ability in designing secure and performant systems. This role offers significant responsibility with the potential for leadership as the company grows, making a direct impact on financial inclusion.

Qualifications

• 5+ years building and shipping web applications in Python, Go, or Rust.
• Proven ability to design secure, reliable, and performant systems at scale.

Responsibilities

• Lead core backend development and design scalable systems.
• Integrate cryptocurrency wallets and banking service providers.
• Build a secure platform for real-money transactions.

Skills

Python

Go

Rust

Web applications

Security

Reliability

Tools

Postgres

Redis

AWS

Job description

About the job Staff Backend Engineer (Fin tech)

Location:On-site, San Francisco, California, United States
Compensation: $200,000 $400,000 USD per year

About Us

We're building a next-generation consumer finance app for emerging markets, in partnership with major distribution players. Our platform combines a virtual bank and cryptocurrency wallet, enabling users across the globe to move seamlessly within a single financial ecosystem.

Why now? Stablecoins are transforming cross-border payments. This is a rare chance to rebuild financial infrastructure for the 3 billion people who need better financial rails.

We are a small, senior-only team led by proven founders with successful exits. Well-funded and moving fast, every new hire helps shape our technical direction and product strategy while driving Day 1 impact on global financial inclusion.

The Role

We're seeking a Senior Backend Engineer to lead core backend development. You'll design and scale the systems that power our iOS, Android, and Web applications, including:

Integrations with cryptocurrency wallets and banking service providers.

Critical services for authentication, ledgering, and payment rails.

Building a secure and highly reliable platform for real-money transactions at international scale.

Our early stack will likely be a Python (FastAPI/Pydantic) monolith with Postgres and Redis on AWS, with opportunities to introduce Go and/or Rust for services requiring higher performance or concurrency.

This role is critical You'll work directly with technical founders to define engineering standards, shape architecture, and build a high-performance backend from the ground up. As we scale, this role has the potential to evolve into a backend lead or broader engineering leadership role.

What We Offer

Day 1 impact on partner products used by millions globally.

️ The chance to own architecture and technical vision from the start.

A ground-floor opportunity in the rapidly growing stablecoin ecosystem.

Requirements

5+ years building and shipping web applications in Python, Go, or Rust.

Proven ability to design secure, reliable, and performant systems at scale.

Bonus Points

Experience in financial technology or payments.

Full-stack engineering skills and flexibility to contribute across the stack.

Strong design instincts and product-oriented thinking.