• Apply modern engineering principles and practices to solution delivery and employ this rigor throughout the full software lifecycle; from initial concept and architecture through deployment, as well as while refining existing systems and solutions. • Take ownership of complex technical problems and work with other engineers to find innovative solutions that meet both technical standards and business needs. • Provide leadership in following engineering best practices, including all phases of the process from design to deployment. • Design, develop, and maintain custom Oracle applications and integrations using PL/SQL, Oracle Forms, Oracle Reports, and Oracle Application Framework (OAF) or related technologies. • Design, build, and maintain highly complex solutions with a security first mindset. • Provide technical leadership in designing, developing, and reviewing solutions. • Design and implement data integration solutions between Oracle applications and external systems using APIs, web services, and ETL tools. • Analyze functional requirements and translate them into technical design documents and scalable solutions. • Proactively seek out opportunities for architectural improvements, optimizations, and innovations. • Work with other engineers to identify areas for improvement, assess new technologies, and help shape the direction of the organization's technical roadmap.

• Design and build core authentication and authorization infrastructure • Implement and evolve our identity protocols - OAuth 2.0, OIDC, SAML/SSO, session management, and JWT - powering secure access for hundreds of thousands of developers and their projects. • Own the reliability, correctness, and security posture of identity services across our distributed platform, from API gateway to backend services to the login UI. • Identify architectural improvements and drive them from initial design through production, with a security-first lens at every step. • Build the identity layer for AI and agentic workflows • Design and implement agent attribution - establishing verifiable, auditable identity for AI agents acting on behalf of users and organizations at platform scale. • Collaborate with platform and product teams to define the identity primitives that underpin Sanity's AI Content Operating System, including authorization models for agentic contexts. • Collaborate across the stack and raise engineering quality • Work end-to-end across backend services (Node.js/TypeScript), PostgreSQL, and frontend auth flows - owning features from design through delivery. • Participate in code reviews, architectural discussions, and incident response; contribute to on-call for identity services. • Partner closely with security, platform, and product teams on cross-cutting concerns and help set the technical direction for the Identity domain.

We are knowmad mood! Somos una compañía líder en transformación digital, en constante evolución y a la vanguardia de la tecnología. Nacimos para provocar un cambio real a través de la innovación y el desarrollo sostenible, con la misión de aportar valor a los clientes e impulsar nuestro talento. Formado por más de 3.000 personas creativas, digitales e innovadoras conectadas a un propósito y capaces de generar conexiones con personas de todo el mundo. Un equipo responsable, flexible y con alta capacidad de adaptación a las necesidades de nuestros clientes y del mercado, a la vez que proporciona valor, visión, creatividad, expertise, profesionalidad y pasión por la tecnología en cada proyecto. Los valores que marcan nuestro rumbo y nos guían hacia la excelencia son la colaboración, la innovación, el compromiso, la diversión y la confianza. ¿Qué es lo que valoramos? Que tengas al menos 5 años de experiencia como Arquitecto o Líder Técnico en: - Entornos Host / Mainframe con PL1. - Conocimiento avanzado de DB2 (entorno Host). - Experiencia en migraciones o replicaciones de datos hacia PostgreSQL. - Experiencia en arquitecturas de integración y replicación de datos. - Experiencia evaluando impacto en consumo y rendimiento del Host - Capacidad de gestionar equipos. ¿Cuáles serían tus funciones? - Optimización de problemas en el rendimiento. - Migración de código PL1 a Java (versiones 6, 7 u 8). - Adaptación del código para operar contra PostgreSQL en lugar del entorno PL1. - Migración de datos desde DB2 hacia PostgreSQL. Y con nosotros podrás disfrutar de: ✅Contrato Indefinido ✅ 100% REMOTO ✅Formación interna y acceso a certificaciones ♻Consulta nuestro calendario aquí: https://www.knowmadmood.com/es/talento/formacion ✅Plan de retribución flexible (seguro médico, transporte, tickets guardería, tickets restaurante) ✅Embajador de nuestra marca, a través de nuestro plan amigo ¡Recomienda a tus amigos y llévate un extra! ✅¡Eventos, meetups, techdays, charlas...y mucho más! ✅ 26 días de descanso (22 días vacaciones, 2 días de libre disposición y 24 y 31 diciembre festivos por defecto) ✅ Horario: 8.30 a 18h ( flexible) L-J y V 8 a 15h e Intensiva de Verano Julio y Agosto de 8 a 15h Para estar al corriente de nuestras novedades síguenos aquí -> knowmad mood En knowmad mood nos comprometemos con la igualdad de oportunidades y el respeto a la diversidad. Aplicamos nuestro Plan de Igualdad y el principio de no discriminación en todos nuestros procesos de selección.

Title: Principal Software Engineer - Mobile Location: Lisbon Job Description: 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 Software Engineer experienced in mobile development to join our Tripadvisor Experiences team. We are unable to offer B2B contracts at this time. This role is open to candidates based within a commutable distance (generally up to 1.5 hours) of our office hub in Lisbon. We embrace flexibility in where and how work gets done and also value meaningful in-person moments to connect and collaborate. You can expect a remote-first working model with periodic in-person gatherings at your closest office for team connection, planning, or other key moments. Would you like to build features end to end? Would you enjoy working with a large number of technologies? Do you like moving quickly, releasing features daily, working with other smart and talented engineers? If this sounds like you, we’d love to talk to you. What you will do - Drive the design and architecture of complex, scalable mobile application systems that underpin our customer-facing technology solutions. Capable of designing long-lasting mobile architectures to solve complex problems including performance, reliability, scalability, offline behaviour, consistency, and quality, often across an engineering pillar. - Conduct design reviews at both the engineering pillar level and across the broader engineering organization, with a strong focus on mobile app architecture, platform evolution, and cross-platform integration. - Lead generalisable improvements in mobile operational maturity for the platform, promoting best practices across areas such as release management, app stability, observability, performance monitoring, and incident response. - Work closely with engineering managers, other principal and senior principal engineers to drive technology strategy and roadmap that aligns with the wider organisation or group vision. - Partner with Product Manager(s) and Engineering Manager(s) to establish clear technical delivery milestones for key mobile initiatives and help drive delivery within the agreed scope, quality, and timelines. - Build trusted leadership by being regarded as a go-to person across a wide number of mobile technologies, development practices, and tools used within an engineering pillar or group. - Communicate effectively with technical and non-technical stakeholders to ensure alignment on project goals, technical trade-offs, commitments, and timelines. What we’re looking for - 8+ years of experience in commercial software development, with significant experience delivering large-scale native mobile applications. - Demonstrated excellence in working with cross-functional teams in fast-paced environments, providing both hands-on technical leadership and effective cross-team collaboration. - Excellent command of tools and techniques for troubleshooting mobile production issues, including crash analysis, performance diagnostics, and release health. - Strong experience designing and evolving scalable mobile systems from conception through production operation. - Deep understanding of mobile software architecture, design principles, and engineering best practices across iOS and Android ecosystems. - Deep experience with mobile platforms iOS and Android, native languages including Swift, Kotlin, Objective-C, and Java, and modern mobile architectural patterns. Experience with shared code and cross-platform approaches such as Kotlin Multiplatform. Strong architectural understanding of mobile communication patterns such as REST and GraphQL and the broader mobile ecosystem including local data persistence, networking layers, authentication, offline and synchronisation strategies, and push notification systems. 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. We strive to create an accessible and inclusive experience for all candidates. If you need a reasonable accommodation during the application or the recruiting process, please make sure to reach out to your individual recruiter or our team at AccessibleRecruiting@tripadvisor.com. If you have any additional questions about careers at Tripadvisor you can email us at recruitment@tripadvisor.com. We have all the answers!