Senior Financial Data & Payments Systems Engineer

Gusto; California; Hybrid; USD 180,000 - 240,000; Full time

Benefits offered by this job

Equity (RSUs)

Job summary

Gusto seeks an experienced software engineer to advance the financial backbone—ledger, reconciliation, and reporting—driving architectural decisions and scalable systems. You will mentor engineers, own end-to-end delivery, and collaborate across Finance, Compliance, and Operations to ensure reliable payroll and payments infrastructure.

You should have 10+ years building robust, distributed systems; familiarity with Ruby on Rails and TS/React is a plus.

Qualifications

• At least 10+ years of engineering experience in a collaborative, test-driven environment.
• Experience building fault-tolerant, distributed systems and guiding large-scale projects.
• Ability to architect, build, test and maintain production-grade code across teams.
• Strong communication to facilitate informed tradeoffs and cross-functional alignment.
• Bonus: experience with Ruby on Rails, TypeScript, and React.

Responsibilities

• Design, build, and test financial data systems recording all movements and reports.
• Construct scalable reconciliation to align internal records with banks and partners.
• Lead end-to-end variance investigations with tooling and runbooks to root causes.
• Own the payment profile setup, verification, and funding rules.
• Scale one of the world’s largest Ruby/Rails and TS/React apps and mentor engineers.
• Collaborate with cross-functional teams including Engineering, PM, Design, Data Science, Finance.

Skills

10+ years exp

Distributed systems

Architecture decisions

Leadership across teams

Ruby on Rails

TypeScript/React

Job description

Gusto seeks an experienced software engineer to advance the financial backbone—ledger, reconciliation, and reporting—driving architectural decisions and scalable systems. You will mentor engineers, own end-to-end delivery, and collaborate across Finance, Compliance, and Operations to ensure reliable payroll and payments infrastructure.

You should have 10+ years building robust, distributed systems; familiarity with Ruby on Rails and TS/React is a plus.