Software Engineer III (Senior) in London

Join our Integrations Squad! We are growing our engineering team at Trustpilot and are looking to welcome a Senior Software Engineer into our B2B Integrations Squad!

About the Team and Mission

The Integrations Squad's mission is to empower businesses of all sizes—from sole traders to global enterprises—to seamlessly incorporate Trustpilot into their customer feedback workflows. As a Senior Software Engineer, you will be instrumental in overseeing the health and evolution of 20+ distinct integrations (including Shopify, Salesforce, and HubSpot), improving scalability whilst optimising for future growth. You will join a cross‑functional team with full ownership of our products and codebase, where you will take part in every step of the development process, from ideation to maintenance. Your expertise will guide architectural decisions, ensure code quality, and mentor fellow engineers, promoting a culture of technical excellence and innovation.

What You’ll Be Doing

• Backend Stability & Scalability: Understand the existing technical landscape to plan, implement, and release new features with a focus on system reliability.
• Architectural Oversight: Architect solutions to handle the complexities of 20+ integrations while maintaining the internal tools and documentation used to improve team resilience and tech footprint.
• Adaptable Problem Solving: Troubleshoot existing software, resolve bugs across the full stack, and navigate a multifaceted technical environment with ease.
• Technical Leadership: Inspire and guide the organization with your knowledge of how to solve complex architectural challenges and naturally untangle legacy systems.
• Best Practices & Infrastructure: Help lead the technical direction of the team through the adoption of engineering best practices, robust tooling, and Infrastructure as Code.
• Mentorship & Coaching: Mentor, coach, and support less experienced colleagues to help them grow.
• Strategic Collaboration: Collaborate closely with Engineering and Product leadership to align technical debt reduction with long‑term business value.

Who You Are

• Senior-Level Full‑Stack Expertise: Experience at a senior level building full‑stack applications, paired with a deep focus and passion for backend engineering on Cloud Services, system stability, and modern frontend tools like React, Next.js, and CSS Modules.
• A Growth Mindset for Legacy Systems: You are energized by a complex backlog, finding genuine satisfaction in driving platform‑wide improvements and untangling legacy code.
• Deep Backend Proficiency: Extensive proficiency in Node.js, TypeScript, and JavaScript, with strong understanding of APIs, Webhooks, and OAuth protocols.
• Strong Cloud & Infrastructure Knowledge: Proficient experience with AWS (Lambda, SQS, DynamoDB, ECS, SNS, CloudFormation), containerization, data, and infrastructure systems like Docker, Terraform, PostgreSQL, and BigQuery.
• Customer‑centric: A solution‑oriented mindset dedicated to the customer experience, thriving in collaborative environments where you can help establish clear ownership boundaries across enterprise platforms like Salesforce and Zuora.
• Supportive Leadership: Motivated to encourage yourself and the people around you to constantly improve in a healthy, sustainable way.
• Team Focus: Understanding that maintenance‑heavy work requires resilience, acting as a supportive leader who ensures every team member feels valued.

What’s in it for you

• A range of flexible working options to dedicate time to what matters to you.
• Competitive compensation package and bonus.
• 25 days holiday per year, increasing to 28 days after 2 years of employment.
• Two paid volunteering days a year to give back to the causes that matter to you and your community.
• Rich learning and development opportunities supported through the Trustpilot Academy and Blinkist.
• Pension and life insurance.
• Health cash plan, online GP, 24/7 Employee Assistance Plan.
• Full access to Headspace, a popular mindfulness app to promote positive mental health.
• Paid parental leave.
• Season ticket loan and a cycle‑to‑work scheme.
• Central office location complete with table tennis, gaming corner, coffee bars and all the snacks and refreshments you can ask for.
• Regular opportunities to connect and get to know your fellow Trusties, including company‑wide celebrations and events, ERG activities, and team socials.
• Access to over 4,000 deals and discounts on things like travel, electronics, fashion, fitness, cinema discounts, and more.
• Independent financial advice and free standard professional mortgage broker advice.
• Talent acceleration programs: Fast‑track your career with our tailored development programs designed to support growth at whatever stage of your career.

We want to be a part of creating a more diverse, equitable, and inclusive world of work for all. We’re excited to hear about your experiences along with how you will contribute to our working culture. Even if you don’t feel you meet all the requirements, we'd still really like to hear from you!

Equal Employment Opportunity

Trustpilot is committed to creating an inclusive environment where people from all backgrounds can thrive and where different viewpoints and experiences are valued and respected. Trustpilot will consider all applications for employment without regard to race, ethnicity, national origin, religious beliefs, gender identity or expression, sexual orientation, neurodiversity, disability, age, parental or veteran status. Together, we are the heart of trust.

Trustpilot is a global company and our data practices are designed to ensure that your personally identifiable information is appropriately protected. Please note that your personal information will be transferred, accessed, and stored globally as necessary for the uses and disclosures stated in our privacy practices.