Senior Staff Software Engineer, Money Group

About Gusto At Gusto, we're on a mission to grow the small business economy. We handle the hard stuff — payroll, health insurance, 401(k)s, and HR — so owners can focus on their craft and their customers. With teams in Denver, San Francisco, and New York, we support more than 500,000 small businesses nationwide and are building a workplace that reflects the people we serve. All full-time employees receive competitive base pay, benefits, and equity (RSUs) — because everyone who helps build Gusto should share in its success. Offer amounts are determined by role, level, and location. Learn more about our Total Rewards philosophy. AI is a fundamental part of how work gets done at Gusto. We expect all team members to actively engage with AI tools relevant to their role and grow their fluency as the technology evolves. AI experience requirements vary by role and will be assessed during the interview process. About the Role We're hiring a Senior Staff Engineer to serve as a Technical Lead across multiple pods in the Money Group – Gusto's fastest-growing organization and a cornerstone of the company's transformation into the Small Business Finance Platform. You'll leverage deep domain expertise to help shape the technical vision for systems that power consumer and business financial health including financial accounts, money movement, lending, expense controls, etc. – ensuring the architecture scales as we grow. This role spans strategy and execution: guiding architectural direction across a group of 15-20 engineers, vetting external partners, prototyping new product lines to unblock product decisions, extracting services from our monolith, and mentoring the engineers around you. You'll be the person who fills whatever role the group needs to hit its goals – from hands-on coding to strategic planning to unblocking other teams. If you're excited about building financial infrastructure with real impact on the people and businesses that power the modern economy, we'd love for you to join us. About the Team Money is Gusto's fastest-growing group, building financial products for both sides of the employment relationship. For small businesses, we're extending the category of employer-facing financial services – bill pay, invoicing, working capital, expense cards, and cash flow insights that help SMBs get paid faster and pay others with confidence. For employees, we build tools that reduce financial stress: on-demand pay, high-yield cash accounts, automated savings, and credit-building features. This is a deeply technical domain spanning payments infrastructure, lending, multi-party integrations, and mobile-first experiences – with the complexity and scale to match. Together, these teams are building toward a unified financial operating system for small businesses – accounting, banking, payments, lending, and tax – all connected to Gusto's payroll and people platform. Our unique advantage is Gusto's authority over payroll data, which we leverage to build a payroll-confidence engine no standalone fintech can replicate. Sub-Teams Business Money: Business Money is building the financial operating system for small businesses on Gusto. We help owners manage how money flows in and out of their business – from paying bills and running payroll on time, to accessing capital and controlling employee expenses. Our tools (expense management, lending/payroll protection, cash flow insights, invoicing) give business owners more confidence and control over their cash flow so they can focus on building their business. Whether it's a Money Dashboard that flags payroll risks before they happen, or a Payroll Bridge loan that covers a cash shortfall, we're shaping solutions that make a real difference for SMBs. Consumer Money: Consumer Money exists to help every employee achieve financial peace of mind through the connection between their employment and their personal finances. Our teams build the products that give workers more control over their money – on-demand pay, high-yield cash accounts, automated savings, and credit-building features – all anchored to the paycheck relationship Gusto already powers. We earn a lasting relationship with members by reducing financial stress and helping them keep more of what they earn. Tax Credits: Tax Credits builds automated tax credit products – starting with R&D credits – directly integrated into Business Money's financial engine. By embedding credit eligibility and filing into the same data model that powers accounting and cash-flow insights, we turn annual tax savings into an automated, always-on lever for small businesses. Payments: Payments Engineering owns the infrastructure that moves money across Gusto – ACH, real-time payments, disbursements, and fund flows that underpin payroll, lending, and all financial products in the group. This team ensures money moves reliably, compliantly, and increasingly in real time. Here's what you'll do day-to-day: • Serve as a Technical Lead across multiple pods in the Money Group – setting architectural direction, unblocking engineers, and ensuring high-quality delivery aligned with long-term goals. • Help define the technical vision for your domain areas within the Money Group, and own the shorter-term projects that move us toward it. • Contribute to the architecture connecting Gusto's People Stack and Finance Stack, owning the pieces within your teams' domains. • Lead service migration from a large Ruby-on-Rails monolith into a service-oriented architecture, defining clean domain boundaries across money movement, lending, and tax. • Manage a complex partner ecosystem, including leading technical due diligence in vendor evaluation. • Build prototypes and proof-of-concepts to de-risk new ideas and unblock product decisions quickly. • Tackle complex, ambiguous problems in close partnership with Product Management, Design, Data Science, Compliance, and Operations. • Drive AI-native architecture decisions – from LLM-p