Senior Software Engineer I

Location: Edinburgh, Barcelona

Remote Type: Remote

Time Type: Full time

Job Description

The Opportunity

We’re looking for a Senior Software Engineer I to join our Testing team within our growing technology organization.

At UserTesting, we power human understanding by enabling organizations to learn directly from real users. As a Senior Software Engineer, you’ll contribute to the systems that support how our customers design, run, and analyze tests across our platform.

We are looking for an engineer who is excited to continue growing their skillset — including developing broader full-stack capabilities over time. Across our team, we actively support engineers in expanding their technical scope to enable better collaboration, deeper technical discussions, and more fluid decision-making around where solutions should live within the system.

What You Will Be Doing

• Design, build, and enhance features that support growing product usage and evolving customer needs

• Own work end-to-end — from technical design through implementation, testing, and production release

• Collaborate with your team to translate product requirements into technical solutions, while building and maintaining a robust scalable platform

• Collaborate closely with other engineers through pair programming, knowledge sharing, and code reviews

• Support and review code from peers, promoting clean code and high engineering standards

• Identify opportunities to simplify complexity and improve development workflows

• Troubleshoot production issues and ensure reliable system behavior
   

What We’re Looking For

Core Experience

• Strong backend development experience with NodeJS in production environments

• Solid backend development experience and comfort working on APIs and services

• Good understanding of software design principles, testing practices, and maintainable architecture

• Experience delivering production-ready software as part of a collaborative engineering team

Growth Mindset

• Eagerness to learn new technologies and expand beyond your primary area of expertise

• Interest in developing full-stack capabilities over time

• Adaptability to evolving technical and organizational requirements

Nice to Have

• Experience with frontend technologies such as React

• Experience mentoring other engineers or guiding projects

• Exposure to working across different layers of the stack
   

How You Work

• Comfortable working within and improving existing systems

• Thoughtful about trade-offs between speed, quality, and long-term maintainability

• Proactive in identifying improvements and proposing practical solutions

• Collaborative communicator who works effectively with cross-functional partners

• Committed to high-quality engineering practices, including unit testing and code reviews

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.

UserTesting is an Equal Opportunity Employer and a participant in the U.S. Federal E-Verify program.  Women, minorities, individuals with disabilities and protected veterans are encouraged to apply.  We welcome people of different backgrounds, experiences, abilities and perspectives.  UserTesting will consider qualified applicants with criminal histories in a manner consistent with the San Francisco Fair Chance Ordinance, as applicable.