Senior Full-Stack Engineer, Fintech - Build Next-Gen Banking

Global Placement Firm; San Francisco (CA); On-site; USD 180,000 - 275,000; Full time

Benefits offered by this job

Equity

Job summary

GPF Staffing is recruiting a Senior Full Stack Software Engineer for a rapidly growing fintech company focused on neobank and merchant platforms serving Mexico's underserved markets. This on-site role offers significant ownership of greenfield products across banking, payments, lending, and AI-powered services.

You will join a small team to build scalable financial tech, own end-to-end features, and help establish the technical foundation for rapid growth in a hands-on, product‑minded

Qualifications

• 4–8+ years of professional software engineering experience, with a strong background in full-stack development.
• Experience shipping production-grade frontend and backend applications.
• Strong proficiency in TypeScript, React, Node.js, and modern full-stack JavaScript frameworks.
• Experience designing, developing, and maintaining scalable backend services and APIs.
• Strong understanding of SQL, relational databases, data modeling, and database performance.
• Experience with message queuing systems and asynchronous processing.
• Ability to independently own complex features throughout the entire software development lifecycle.
• Experience building reliable, scalable systems that support growing user bases or significant transaction volumes.
• Strong product mindset balancing engineering quality, UX, and business objectives.
• Willingness to work on-site in San Francisco five days per week.

Responsibilities

• Build and own full-stack features end-to-end from UI to backend and production deployment.
• Design and develop scalable services to support high transaction volumes across lending, payments, and ledgers.
• Develop core banking and merchant-facing applications for thousands of small and medium businesses.
• Contribute to architectural decisions, engineering standards, and development practices.
• Collaborate with product managers, designers, and engineers to translate requirements into production-ready software.

Skills

Full-stack development

TypeScript

React

Node.js

SQL databases

APIs

Distributed systems

Tools

Git

CI/CD

Docker

Job description

GPF Staffing is recruiting a Senior Full Stack Software Engineer for a rapidly growing fintech company focused on neobank and merchant platforms serving Mexico's underserved markets. This on-site role offers significant ownership of greenfield products across banking, payments, lending, and AI-powered services.

You will join a small team to build scalable financial tech, own end-to-end features, and help establish the technical foundation for rapid growth in a hands-on, product‑minded