Senior Software Engineer (Full-Stack)

Posted Yesterday
3 Locations
In-Office or Remote
Senior level
Financial Services
The Role
Senior full-stack engineer to build customer-facing features across banking, tax automation, and expense tracking. Work across backend APIs, MySQL/Spanner data models and React/TypeScript frontends. Own end-to-end delivery, improve architecture and reliability, mentor engineers, and drive engineering standards and debt reduction.
Summary Generated by Built In
About Found

The self-employed workforce is a rapidly growing, resilient, and colorful 60 million Americans. But self-employment comes with its own set of challenges: navigating taxes, accounting, bookkeeping, and business banking are just a few. That’s where we come in.

Found is building tools that give self-employed people the security and peace of mind that has historically only been possible at big corporations. We’re a business bank account that automates taxes and expense tracking because we believe small business owners should spend more time doing what they love and less time on their business finances.

We’re looking for kind, resourceful, and passionate people to join us in building the safety net for self-employment.

About This Role

We're hiring a Senior or Staff Software Engineer to work across our product teams. This is a high-impact, full-stack role where you’ll be shipping customer-facing features, raising the technical bar, and helping engineers around you grow.

You'll embed with product teams where the work is most important, partner closely with senior engineers and engineering managers, influence how we build across the organization and have ownership over outcomes.

What You'll DoShip product that drives business impact
  • Build and iterate on customer-facing features in our core product — banking, tax automation, and expense tracking — using Ruby on Rails, React, Redux, and TypeScript

  • Work across the stack: backend APIs, data modeling in MySQL and Spanner, and polished frontend experiences

  • Partner with product and design to go from idea to shipped feature quickly, with a high bar for quality

  • Own your work end-to-end — you'll be involved in scoping, building, reviewing, and monitoring

Improve how the team builds
  • Raise the technical bar through code review, architecture input, and honest, constructive feedback

  • Help establish patterns and conventions that make the codebase easier to work in over time

  • Identify and address reliability, performance, or scalability issues before they become incidents

  • Contribute to reducing tech debt in a way that's practical, not theoretical

Develop engineers around you
  • Act as a technical mentor and thought partner for senior engineers across teams

  • Collaborate closely with engineering managers on technical planning, scoping, and team health

  • Help engineers grow through pairing, code review, and design conversations

  • Model what great engineering looks like: clear thinking, clean code, and good judgment under ambiguity

To thrive in this role, you have:
  • 12+ years of full-stack engineering experience, with strong backend fundamentals

  • Production experience with Ruby on Rails or a comparable framework, and comfort in React/TypeScript on the frontend

  • Experience working with relational databases at scale (MySQL, Spanner, or similar)

  • A track record of working across multiple teams or functions, building relationships and get alignment

  • Strong communication skills: you can explain technical decisions clearly to engineers and non-engineers alike

  • High standards for code quality and a habit of leaving things better than you found them

You may also have:
  • Experience in FinTech, financial services, or products with complex compliance requirements

  • Background as a tech lead, architect, or informal team leader

  • Experience driving engineering-wide initiatives such as standards, migrations, platform improvements

#LI-DNI

About You

Found is built by a team that comes from a variety of backgrounds and experiences, and we firmly believe that diversity, equity, and inclusion are crucial to our success. As we grow, we’re searching for passionate and motivated team members who are excited to bring their skill set to the team and are ready to learn from others.

If you are looking for a role where you will have the opportunity to make a meaningful contribution and great impact, we would love to hear from you!

Perks & Benefits of Found (USA)
  • 401K, FSA, and Commuter Benefits: We offer all employees access to tax-efficient benefit options alongside competitive base compensation.

  • Paid parental leave: Found supports employees through all stages of life, which is why new parents employed by Found qualify for 16 weeks of flexible parental leave.

  • Health benefits: Comprehensive medical, dental, and vision benefits and are always 100% covered for employees, 90% covered for dependents.

  • Work anywhere: We have Found offices in SF and NYC. For team members who work outside those cities, Found also supports fully remote working.

  • Meaningful equity: Everyone on our team should feel and act like an owner, which is why Found offers industry-competitive equity to all of our employees.

  • Generous vacation policy: Vacations, appointments, mental health days- take the time you need.

To learn more about our benefits or the team please go to found.com/careers.

Skills Required

  • 12+ years of full-stack engineering experience
  • Production experience with Ruby on Rails or comparable framework
  • Experience with React, Redux, and TypeScript on the frontend
  • Experience working with relational databases at scale (MySQL, Spanner, or similar)
  • Track record of working across multiple teams or functions and building alignment
  • Strong communication skills to explain technical decisions to technical and non-technical stakeholders
  • High standards for code quality and habit of improving codebase
  • Experience in FinTech or products with complex compliance requirements
  • Background as a tech lead, architect, or informal team leader
  • Experience driving engineering-wide initiatives such as standards, migrations, or platform improvements
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The Company
HQ: San Francisco, California
117 Employees
Year Founded: 2019

What We Do

Found is on a mission to make self-employment easier. With business banking and smart, simple financial tools, we help people seamlessly run their own businesses. With over half the U.S. workforce predicted to be self-employed by 2027, we’re proud to be meeting a real and growing need. Self-employment can be infinitely rewarding, but it comes with a host of challenges. When you are your business, even when the job is done, there’s still a ton of work to do—from bookkeeping to invoicing to taxes. The independence of entrepreneurship can instead feel like a maze of paperwork. That’s where we can help. Found automatically tracks expenses, estimates taxes, and keeps the books organized, all from one easy app. With a Found account, everything from business banking to invoicing to reporting is at your fingertips. In the words of one of our members, “it has given me so much financial freedom and free time.” We’re driven by our mission and we work in support of entrepreneurship, independence, and the sheer joy of loving what you do. Come love what you do at Found. Found is a financial technology company, not a bank. Banking services are provided by Piermont Bank, Member FDIC. The Found Mastercard Business debit card is issued by Piermont Bank pursuant to a license from Mastercard Inc.

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