Staff Software Engineer (Invoicing and Billing)

• We’re looking for seasoned backend software engineers to join the teams behind Gusto’s Invoicing and Billing platform — the billing platform that generates accurate invoices for our customers and integrates with our revenue and accounting systems
• As a Staff Software Engineer, you’ll operate across the full lifecycle of Gusto’s commerce systems: shaping architecture early in the design process, improving and maintaining a high throughput transactional billing platform, building self-service internal features and APIs, and owning their performance long after launch
• That means engineering the core commerce engine, enabling product teams to launch new products and Gusto to monetize its offering. Support new billing models for Gusto like multi-entity, multi-currency anniversary billing
• Design, build, and test Gusto core billing platform – usage jobs, subscriptions, orders, invoice generation, payments, reporting, accounting integrations
• Mentor other engineers to help solve some of the hardest technical problems out there in very complex domains and at a large scale
• Help scale one of the largest Ruby/Rails and Javascript/React applications in the world
• Collaborate with our Product Engineering, Product Management, Data, and Design teams to understand customer pain points, come up with solutions, and then prototype, iterate, and launch daily
• Build products that our customers genuinely love

Benefits

• Gender-affirming care and support
• Family care and support, including family planning and fertility benefits
• A variety of mental health resources
• Medical, dental, and vision insurance for employees and dependents
• Free meals and refreshments at the office (conversation and community is an added bonus!)
• Paid vacation, sick time, bereavement, and holidays, paid leaves, sabbatical, and more

• Ability to effectively communicate across engineering teams and with business stakeholders
• Experience with large scale refactors, performance and reliability issues, and a strong sense of ownership over all aspects of your platform area
• Passion for creating scalable, efficient platforms for users
• Successful applicants typically have 8+ years of software development experience
• Experience leveraging AI tools or systems to accelerate development, improve testing, and deliver new platform capabilities
• Experience in, or interest working in, Ruby on Rails
• Ability to mentor engineers to maximize their performance and impact
• Experience owning multi-quarter projects that solve complex engineering problems and make measurable user impact at scale
• Experience in building large high throughput distributed systems
• Curiosity and experimentation with emerging AI frameworks, applying and sharing best practices to evaluate and scale AI use safely across teams
• Experience in the Commerce domain: invoicing, commerce, payment processing space revenue recognition