Senior Software Engineer, Full-Stack

Found

Senior Software Engineer developing customer-facing features for fintech company Found. Collaborating across product teams and ensuring high code quality in a full-stack environment.

Posted 6/16/2026full-timeRemote • California, New York • 🇺🇸 United StatesSeniorWebsite

Tech Stack

Tools & technologies

MySQLReactReduxRubyRuby on RailsTypeScript

About the role

Key responsibilities & impact

Ship 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
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
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

Requirements

What you’ll need

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.

Benefits

Comp & perks

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.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Ruby on RailsReactReduxTypeScriptMySQLSpannerbackend APIsdata modelingcode reviewperformance optimization

Soft Skills

communicationcollaborationmentorshipproblem-solvingconstructive feedbackrelationship buildingtechnical planningteam healthclear thinkinggood judgment