Senior Software Engineer II

About Us

UserTesting is the leader in human insight, helping organizations craft exceptional customer experiences through fast, actionable feedback. With a global participant network, AI‑powered analysis, expert services, and seamless integrations, we empower teams to build, launch, and improve products with real human perspectives.

The Opportunity

Full Stack Engineer with 5+ years experience to join our growing technology organization. As a Full Stack Developer on the Testing team, you’ll design and build scalable features across front‑end and back‑end systems, collaborating with cross‑functional partners to turn user needs into high‑quality solutions.

What You Will Be Doing

• Design and build reliable, scalable engineering solutions to support growing usage.
• Collaborate with the team to deliver high‑quality software to production.
• Contribute to system architecture, sharing technical context and defending proposals.
• Bring fresh ideas across front‑end, back‑end, and software strategy.
• Write clear documentation to support smooth implementation.
• Tackle complex challenges while promoting best practices, clean code, and effective reviews.

What We’re Looking For

• Ability to design, develop, and maintain both front‑end and back‑end systems that are scalable, reliable, and performant.
• Strong back‑end skills with Ruby and Node.js, plus front‑end experience using TypeScript/React.
• Ability to work within existing architectures with a focus on consistency, maintainability, and delivery.
• Comfortable writing clear documentation, contributing to code reviews, and ensuring high‑quality standards.
• Able to troubleshoot issues across the stack, understand existing systems quickly, and propose effective solutions.
• A collaborative team player who values feedback, clean code, and continuous improvement.
• Experience with Test‑Driven Development (TDD) or Behavior‑Driven Development (BDD) is a plus. At a minimum, we’re looking for someone who actively promotes and applies unit testing as part of their day‑to‑day development practices.
• Strong collaboration and communication skills in cross‑functional teams.
• A proven track record of delivering production‑ready software in a timely manner.
• Fluent in English.

What We Offer

• A mission‑driven environment focused on human understanding and purpose‑led innovation.
• Inclusive culture that celebrates diverse experiences, identities, and voices.
• Employee Assistance Program (EAP)
• Health Insurance
• Employee Referral Program
• Professional Development Stipend
• Remote work stipend
• Wellness reimbursement
• Volunteer days to support your community involvement

UserTesting is an Equal Opportunity Employer and a proud participant in the U.S. Federal E‑Verify program. We welcome people of all backgrounds, abilities, and experiences, and are committed to fostering a workplace where everyone belongs and thrives. Qualified applicants with criminal histories will be considered in accordance with the San Francisco Fair Chance Ordinance, as applicable.