• Design, develop, enhance, and maintain web applications and internal systems • Lead technical discussions, solution architecture, and system design initiatives • Translate business and functional requirements into scalable and effective technical solutions • Ensure application performance, security, scalability, and maintainability • Develop and integrate APIs, third-party services, and database solutions • Conduct code reviews and ensure adherence to coding standards and development best practices • Troubleshoot and resolve complex technical and system-related issues • Collaborate with cross-functional teams to ensure timely and high-quality project delivery • Mentor junior developers and support technical knowledge-sharing within the team • Contribute to technical documentation, process improvements, and continuous development initiatives

• Design, build, and deploy custom Power Apps solutions based on business and operational requirements. • Develop both Canvas Apps and Model-Driven Apps within the Microsoft Power Platform ecosystem. • Integrate Power Apps with Microsoft Dataverse, SharePoint, SQL Server, Microsoft 365, and external APIs. • Build and optimize workflows using Power Automate to streamline and automate business processes. • Integrate Power BI dashboards and reporting capabilities within Power Apps applications to enhance business insights and analytics. • Troubleshoot, maintain, and enhance existing applications to ensure reliability, scalability, and performance. • Create and maintain technical documentation, user guides, SOPs, and support materials for developed solutions. • Collaborate closely with business stakeholders, project managers, analysts, and other developers to deliver high-quality solutions. • Ensure best practices for security, data integrity, governance, and application lifecycle management are followed. • Continuously identify opportunities to improve workflows, automate repetitive tasks, and optimize operational efficiency.

• Development, maintenance and support of client-related applications; • Implementation and optimization of data load and transformation processes; • Creation of queries to support reports and analytical dashboards to aid decision-making; • Analysis and resolution of performance issues in queries and database processes.

Principal Software Engineer Lisbon - Hybrid or Remote About Tripadvisor The Tripadvisor Group connects people to experiences worth sharing, and aims to be the world’s most trusted source for travel and experiences. We leverage our brands, technology, and capabilities to connect our global audience with partners through rich content, travel guidance, and two-sided marketplaces for experiences, accommodations, restaurants, and other travel categories. The subsidiaries of Tripadvisor, Inc. (Nasdaq: TRIP), include a portfolio of travel brands and businesses, including Tripadvisor, Viator, and TheFork. 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 those which enable third parties to utilise our inventory. We provide the tools which help our customer services team provide world class service to travellers and operators internationally. About the Role We're looking for a Principal Product Engineer who pairs deep engineering craft with strong product instincts. You'll work across the stack - mobile, web, backend - wherever the highest-leverage problem happens to live that quarter. You don't wait for a perfectly scoped ticket; you partner with product, design, and data to figure out what's worth building, then ship it end-to-end. We expect breadth. We also expect real depth in the mobile app ecosystem - our customer-facing experiences live there. But we're not hiring a mobile only specialist. We're hiring a generalist with mobile chops who can lead an iOS architecture review on Tuesday and untangle a backend latency regression on Wednesday. This role is open to candidates based within a commutable distance (generally up to 1.5 hours) of Lisbon, however we also offer flexible hybrid working. What you will do - Identify, scope, and ship the changes that move business metrics - across mobile, web, services, and data layers - Architect long-lasting systems that hold up under real production conditions: performance, reliability, scalability, offline behavior, consistency - Lead technical design reviews across teams, weighing trade-offs not just in code but in product impact, time-to-ship, and operational cost - Drive operational maturity wherever it's weakest - release management, observability, incident response, performance monitoring - including in the mobile apps - Partner with PMs, designers, and engineering leaders to shape what we build, why, and in what order; you're a peer in those conversations, not a downstream implementer - Set the technical bar for the org by example: write the prototype, prove the pattern, then teach it - Communicate trade-offs clearly to engineers, product partners, and senior stakeholders What we’re looking for - 10+ years of software experience, with significant time still spent hands-on in code - track record of shipping product-impacting work end-to-end, not just owning a layer - Real depth in the mobile app ecosystem (iOS and/or Android, with strong fluency in Swift and/or Kotlin and the surrounding ecosystem - offline sync, push, auth, persistence, networking, REST/GraphQL) - and credible breadth beyond it - Demonstrated breadth: you've worked seriously in at least one of {web frontend, backend services, data/infra, platform tooling} alongside mobile, and can hold your own in code review there - Strong product judgment: you've made calls about what not to build, and can defend them with evidence - Comfort troubleshooting in production across stacks - crash analysis, latency tracing, release-health debugging - Excellent cross-functional collaboration; you make the people around you better. Nice To Have - Background in marketplaces, bookings, or other transactional consumer products - Time spent close to data - experimentation, analytics instrumentation, or ML-adjacent work What We Offer - Competitive compensation packages (routinely benchmarked against the latest industry data), including base salary and annual bonuses - “Work your way” with flexibility to suit your lifestyle. Tripadvisor Group takes a remote-friendly approach to collaboration across a worldwide team, with the option to join on-site as often as you’d like or as required by your team. - Flexible schedule. Work-life balance is ingrained in our culture by design. Trust and accountability make it work. - Donation matching. Give back? Give more! We match qualifying charitable donations annually. - Tuition assistance. Want to level up your career? We love to hear it! Receive annual support for qualified programs. - Lifestyle benefit. An annual benefit to spend on yourself. Use it on travel, wellness, or whatever suits you. - Travel perks. We believe that travel is employee development, so we provide discounts and more. - Employee assistance program. We’re here for you with resources and programs to help you through life’s challenges. - Health benefits. We offer great coverage and competitive premiums. - Generous referral scheme. Help us grow and be rewarded with generous awards for referring successful candidates. Our Cultural Pillars: Traveler first We exist to create value for our customer, the traveler. We enable our suppliers and partners to unlock this value. Their collective behaviors and insights are what drives us. Execution is our edge We act fast, experiment, learn from failure, iterate, and improve the solutions of tomorrow across every aspect of our business. Our execution is agile, data-driven, prioritised, and built to scale. We assume no problem is someone else’s problem and finish what can be done today, knowing tomorrow will bring fresh challenges. We succeed together The best outcomes are driven by empathic, humble, and diverse subject matter experts working toward shared goals. We collaborate relentlessly, challenge assumptions, give actionable feedback, and set each other up for success through empowered teams with a clear charter. We transparently take ownership of our growth, individually and as a team. We celebrate the quality of our effort, our learnings, and our collective achievements.