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Senior Software Engineer I

Validately

Validately

Software Engineering
United Kingdom · Barcelona, Spain · Remote
Posted on Sep 16, 2025

We’re UserTesting—the leader in human insight. Our mission is to help organizations craft exceptional customer experiences through fast, actionable feedback.

We empower teams to build the best products and experiences by embedding real human perspectives into every stage of the development process—from ideation to launch. With the world’s strongest participant network, AI-powered analysis, expert services, and seamless integrations, we help companies eliminate guesswork, align stakeholders, and bring customer needs into sharp focus.

Trusted by more than 3,000 organizations worldwide—including 75 of the Fortune 100—UserTesting delivers measurable business outcomes, reduces risk, and helps teams deliver with confidence. Joining our team means being part of a passionate group focused on transforming how companies understand and connect with their customers.

Let’s build experiences people love—together.

At UserTesting, we’re on a mission to make the world a more human place by building products that empower companies to deeply understand their customers. As part of our global Engineering Team, you’ll contribute to enhancing our innovative SaaS platform, helping shape the future of the Human Insights industry.

We’re a company that values your personal and professional growth just as much as the impact you’ll make. Our team is supportive, inclusive, and committed to fostering a sense of belonging. We leverage scaled agile practices to ensure transparency, alignment, and continuous improvement across our teams.

Your Role:

As a Senior Software Engineer, you’ll play a critical role in designing and building scalable, reliable systems. You’ll collaborate closely with a diverse team to create software solutions that are impactful, efficient, and forward-thinking. This role also requires the interpersonal skills to communicate, mentor and learn effectively, and contribute meaningfully to our technical evolution.


Duties/Responsibilities:

  • Daily analyzing and designing reliable & scalable Engineering solutions.

  • Collaborating and guiding the team to bring solid software to production.

  • Providing technical context and finding key points to boost the best decisions.

  • Bringing fresh views on Frontend, Backend and Software strategies.

  • Communicating and documenting solutions, so they can optimally go through building phases.

  • Design scalable & maintainable solutions to absorb the significant usage growth we are facing.

  • Being an active player while building our software, able to take and/or clarify the most difficult aspects.

  • Enforcing best practices, advocating for clean code and helping others succeed through Engineering review processes.

Required Skills/Abilities:

  • You have strong technical skills and solid conceptual foundations.

  • Experience with Typescript, Node.js, gRPC, Kafka, Mongo DB, React, GraphQL, CSS.

  • You love Distributed Software, Cloud solutions, Microservices & Serverless Architectures.

  • You are committed to building highly reliable & scalable systems.

  • You are eager to learn, screen those learnings and apply the best suited for a bounded context.

  • You have experience in discussing, spiking & benchmarking Engineering solutions.

  • You speak fluent English.

  • Familiarity with Reactive & Domain Driven Architectures.

  • Demonstrates values which are important to us: teamwork, proactive attitude, accountability, ownership, continuous learning and growth, transparency, empathy, inclusivity.

Education and Experience:

  • Bachelor’s degree in computer science or equivalent.

  • At least seven (7) years related experience required.

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.