Location
London

Hours
Full Time

Salary
Negotiable

About the Role
The Tripadvisor Group connects people to experiences worth sharing and aims to be the world’s most trusted source for travel and experiences. The Tripadvisor Experiences Engineering team is distributed across Europe and is responsible for the platform, mobile apps, and all their supporting infrastructure. We run the systems that help operators build their businesses and enable third parties to utilise our inventory. We provide tools that help our customer services team deliver world-class service to travellers and operators internationally.

We are looking for a Principal Product Engineer who combines deep engineering craft with strong product instincts. You will work across the stack—mobile, web, backend—wherever the highest-leverage problem exists that quarter. You will partner with product, design, and data teams to identify what’s worth building and ship it end-to-end. While breadth is expected, you will have real depth in the mobile app ecosystem, as our customer-facing experiences primarily live there. This role requires a generalist with mobile expertise who can lead an iOS architecture review one day and resolve a backend latency issue the next.

Key responsibilities include identifying, scoping, and shipping changes that impact business metrics across mobile, web, services, and data layers; architecting long-lasting, high-performance, reliable, scalable systems; leading technical design reviews considering code, product impact, time-to-ship, and operational cost; driving operational maturity in release management, observability, incident response, and performance monitoring; partnering with PMs, designers, and engineering leaders to shape product direction; setting the technical bar by example; and communicating trade-offs clearly to engineers, product partners, and senior stakeholders.

Experience
10+ years of software engineering experience with significant hands-on coding. Proven track record of shipping product-impacting work end-to-end, not just owning a single layer. Deep expertise in the mobile app ecosystem (iOS and/or Android) with strong fluency in Swift and/or Kotlin and related technologies such as offline sync, push notifications, authentication, persistence, networking, REST/GraphQL. Demonstrated breadth with serious work in at least one of web frontend, backend services, data/infra, or platform tooling alongside mobile. Comfortable troubleshooting production issues across stacks including crash analysis, latency tracing, and release-health debugging.

About You
Strong product judgment with the ability to make and defend decisions about what not to build. Excellent cross-functional collaboration skills that elevate the team. Ability to lead technical design reviews and communicate trade-offs clearly to diverse stakeholders. Passionate about building scalable, reliable systems and driving operational excellence.

Qualifications
Background in marketplaces, bookings, or transactional consumer products is a plus. Experience close to data such as experimentation, analytics instrumentation, or machine learning-adjacent work is desirable.