Remote Source

    Senior Full Stack Software Engineer

    Remote
    Full-Time
    Senior (7+ yrs)
    Engineering & Development
    Posted on June 4, 2026
    We are looking for an experienced Full Stack Software Engineer to help build and maintain Proof's products.
    What you'll do as a Senior Full Stack Software Engineer at Proof:
  1. Collaborate with Product and Network and Agent Experience team engineers to design, create, and maintain features for Proof's customers and users
  2. Write quality code with a high degree of autonomy, meeting standards for performance and reliability
  3. Use AI tools in your day-to-day coding, review, and deployment processes to work more effectively and deliver a quality experience for our customers
  4. Drive project scoping activities and discussions around requirements and trade-offs
  5. Troubleshoot complex technical issues in production, pertaining to team's areas of ownership
  6. Drive improvements, collaboration, and best practices through code reviews and mentoring
  7. Proactively write and maintain technical documentation
  8. Participate in production on-call rotation several times a year, after receiving in-depth training
  9. What we're looking for:
  10. 5+ years experience building complex, customer-facing web applications using Ruby on Rails and React
  11. Experience with electronic signature, identity verification, or online notarization products preferred
  12. Familiarity with regulated or compliance-heavy product environments preferred
  13. Concern for quality and enthusiasm for writing unit and integration tests
  14. A willingness to learn any part of the stack: back-end services, data layer, web interfaces, APIs, 3rd party integrations, cloud infrastructure and so on
  15. Comfort with adapting to new technology and new opportunities
  16. A sense of ownership over the code you write, from technical design through to production
  17. Bias towards action and solutions
  18. The ability to work independently on well-defined problems while knowing when to ask for help
  19. Effective communication and active listening skills, with a thoughtful, collaborative approach to problem-solving
  20. You'll really stand out if you have:
  21. Experience with GraphQL and AWS

  22. Our tech:
  23. Proof platform's back-end is Ruby on Rails, Postgres SQL, Redis, hosted on AWS. Our front-end apps are built with React, GraphQL, Apollo and TypeScript.
  24. Our engineering culture:
  25. Proof has a strong focus on mentorship, with regular 1:1s, reviews, and check-ins to ensure that you are learning & growing as an engineer. Your manager will help you set personal goals, support your learning, and track your progress against those goals, to encourage you in the growth of your career, wherever it may take you.
  26. You'll be part of a small, cross-functional team with a highly collaborative process that values thoughtful communication, not just with other engineers but with all parts of the organization.
  27. We’re a startup with big plans, and there’s so much to do. Whether it’s an antiquated legal process, an edge-case user interaction, a quirky piece of code, or unnecessary friction in the CI/CD process, we show up every day with the goal of digging in and leaving something better than we found it.
  28. Our Proof Pillars:
  29. Pave the Way: When obstacles arise, we break through barriers with passion and perseverance. We lead with creativity and forward-thinking. We aim to set new standards and shape the future in a repeatable, scalable way so the path to success is easier for our team to follow.
  30. Own It: We embrace the responsibility that comes with supporting life's most important transactions. When a problem arises we relentlessly pursue the solution with a 'Yes before no' attitude. Because every problem and every transaction is treated like it's our own.
  31. Act with Integrity: We are in the business of building trust and it is at the core of everything we do. We are honest and transparent with our customers, each other and ourselves. If we make a mistake, we own up to it right away and do what it takes to make it right. Our dedication to security and compliance is key to earning trust, fighting fraud and ultimately, our success.
  32. Play to Win: We believe excellence is about always striving to be better so when we get it wrong, we iterate, we learn and we grow. We know we can only go so far alone, we're better together and collectively, we win!
  33. Here are some of our great benefits:
  34. Medical, dental, and vision benefits
  35. Life insurance, long and short-term disability coverage
  36. 401k Plan with a 4% match, beginning on your hire date
  37. Unlimited Sick and Vacation time
  38. 14 paid company holidays
  39. Company Chillax week
  40. 12 weeks of paid parental leave
  41. 4 week sabbatical after 5 years of continuous full time employment
  42. Health Reimbursement Arrangements for fertility and gender affirmation
  43. Lunch on Proof through Grubhub credit
  44. Monthly work from home stipend
  45. Professional development credit
  46. Monthly reimbursement for Wellness
  47. And more!
  48. Company:  Proof

    Provides online proofing and approval software for creative and marketing review workflows.
    201-500 employees
    Marketing & Advertising
    HQ: United States