Senior Software Engineer (Fullstack)

At Puzzle, we’re not just building accounting software- we’re reimagining it. Our modern platform integrates seamlessly with today’s fintech stack, giving founders and finance teams real-time visibility into their financials with clarity and ease.

We are ingesting massive amounts of financial data, transforming it into accurate company insights, and delivering those insights through intuitive, elegant user experiences.

As a Senior Fullstack Software Engineer, you’ll spend most of your time building complex, user-facing systems and crafting delightful product experiences, while also rolling up your sleeves on backend APIs and services when needed. You’ll work closely with product and design, proactively shaping features that solve real customer problems with both technical rigor and usability in mind.

This is your opportunity to join a well-funded startup led by accomplished founders. Join us remotely from anywhere in the US or Canada as we embark on this exciting journey.

• Partner with product and design to deliver intuitive, high-impact features that help users understand and act on their financial data
  

• Architect, build, and maintain complex UI components using React, TypeScript, and Next.js
  

• Contribute to shared frontend libraries, design systems, and performance optimization across the app
  

• Build end-to-end features, including backend integration with REST and GraphQL APIs
  

• Collaborate with backend engineers to design scalable data flows and APIs that power the frontend experience
  

• Own features from concept to production, ensuring reliability, usability, and performance
  

• Provide technical mentorship and peer reviews, raising the bar for code quality and product thinking
  

• 5+ years as a software engineer, with experience working across the stack (frontend leaning)
  

• Deep expertise in React, TypeScript, and modern frontend tooling (Next.js experience a plus)
  

• Strong UI/UX sensibilities — you care about creating intuitive, performant, and pixel-perfect experiences
  

• Experience building and integrating with RESTful APIs; GraphQL familiarity a plus
  

• Comfortable writing backend code when needed, particularly for API endpoints or light data transformations
  

• Solid understanding of databases (SQL, NoSQL) and how frontend and backend systems connect
  

• Proactive and self-driven: you take high ownership over projects, from shaping technical direction to delivering a polished user experience
  

• Product-minded: you thrive in cross-functional collaboration and balance user needs with technical trade-offs
  

• Bonus: background in fintech, finance, or accounting systems — or a passion to modernize them

Join Puzzle Financial at a pivotal growth stage where you'll help redefine and reimagine how companies handle their financials while building your career in a flexible, remote-first environment. You'll have the opportunity to make a significant impact, work with innovative founders, and develop valuable expertise at the intersection of modern accounting and fintech.

Here is a preview of some of the amazing benefits here at Puzzle:

• Competitive base pay and meaningful equity

• 100% paid employee health, dental, and vision plans (U.S. & Canada vary)

• 10 observed holidays and a flexible PTO policy so you can recharge

• $1000 home office budget to get you set up for success

• $2400 co-working budget for face time with your colleagues

• $600 learning and development budget

• 401K so you can save for your future

• And much more

Puzzle is an equal opportunity and affirmative action employer. We welcome and encourage diversity in the workplace regardless of gender, race or color, ethnicity or national origin, age, disability, religion, sexual orientation, gender identity or expression, veteran status, or any other characteristics protected by law.

Candidates should be currently residing in the U.S. or Canada to be eligible for this position. If hired, you will be required to present proof of work authorization. This employer is a participant of the E-Verify program.