Senior Backend Engineer - FinTech APIs (Remote)

Remote; San Francisco (CA); Remote; USD 145,000 - 175,000; Full time

Benefits offered by this job

Stock options

Performance-based bonuses

Health insurance

Vision insurance

Dental insurance

Flexible vacation

Educational assistance

Free gym membership

Casual dress code

Remote work arrangements

Parental leave

Job summary

Self Financial, a venture-backed FinTech, is hiring a Backend Software Engineer to own backend services powering mobile and web experiences. You’ll work with Python, Flask, and FastAPI, delivering scalable APIs and robust data models in a fast-paced environment.

You’ll collaborate with Product, Design, and QA to ship user-focused improvements, mentor junior engineers, and help raise the technical bar across the team, all while supporting a remote-friendly, inclusive culture.

Qualifications

• 5+ years of professional software engineering experience with backend ownership in production.
• Strong working knowledge of Python and web application fundamentals.
• Solid understanding of REST APIs and backend-client communications.
• Comfort with Git and collaborative development workflows.
• Track record of writing reliable, secure, and maintainable code.

Responsibilities

• Design, build, and maintain backend services and APIs using Python, Flask, and FastAPI with ownership over your system area.
• Develop REST endpoints for web and mobile clients with scalability in mind.
• Model data in relational databases and optimize queries and indexes.
• Integrate with payment processors, credit bureaus, messaging, and analytics tools.
• Write clean, tested, secure, and maintainable code with code reviews.

Skills

Python

REST APIs

Web fundamentals

Git workflows

Backend ownership

Team collaboration

Education

Bachelor's degree in Computer Science or related field

Equivalent practical experience

Tools

Flask

FastAPI

PostgreSQL

MySQL

Docker

AWS

Job description

Self Financial, a venture-backed FinTech, is hiring a Backend Software Engineer to own backend services powering mobile and web experiences. You’ll work with Python, Flask, and FastAPI, delivering scalable APIs and robust data models in a fast-paced environment.

You’ll collaborate with Product, Design, and QA to ship user-focused improvements, mentor junior engineers, and help raise the technical bar across the team, all while supporting a remote-friendly, inclusive culture.