We believe that we are better together, and at Tripadvisor we welcome you for who you are. Our workplace is for everyone, as is our people powered platform. At Tripadvisor, we want you to bring your unique identities, abilities, and experiences, so we can collectively revolutionize travel and together find the good out there.

The Trust & Safety Moderation and Fraud team is at the very heart of Tripadvisor. Our mission is to help build and maintain trust in our brand and preserve our brand integrity. We are responsible for developing and maintaining complex business rule processing systems for event streams and UI tools for internal users that help do that.  In 2024, we’ve embarked on a multi-year project to complete modernization of our systems to address current system concerns (eg. scaling), strategic business needs, and external needs. To support this initiative, we are seeking a principal-level engineer with strong experience in the business rule processing technology landscape to help us design and deliver a world-class moderation engine.  

As a Principal Software Engineer, you will lead design and development of our modernization effort, a strategic priority that will help drive the success of the Trust & Safety platform for years to come.  As a technology leader, you will promote best practices, mentor and collaborate with other engineers, and contribute to a culture of innovation, ownership, and empowerment.

What you'll do:

• Lead the design and implementation of the new Trust & Safety platform in AWS.
• Leverage your deep knowledge of business rule processing systems to help Tripadvisor build a scalable decision engine with connectivity to a broad set of vendors (e.g. Signal providers, data intelligence, image recognition, etc), including educating the wider Engineering team on key technologies and processes. 
• Own the operational health of the new platform. Implement the right alerting and monitoring to ensure you always have a pulse on performance.  Define SLA/SLO definitions with business and team, and work to create transparency and observability on those metrics.
• Build content ingestion and management systems to help automate content updates & dissemination while building tools for a feedback loop on content accuracy.
• Work closely with stakeholders (e.g. product and design teams) to define system requirements, weighing engineering and product tradeoffs to recommend technical options that are extensible, scalable, robust, secure, and maintainable.
• Lead design and implementation of complex technical systems, estimating scope of work, organizing and prioritizing work, communicating timelines, managing expectations, and providing timely status updates.
• Be responsible for the quality of code you ship, troubleshooting complex issues and driving them to resolution. Own and be accountable for the business-critical systems you deliver. 
• Mentor junior engineers and promote the success of the team by participating in design reviews, providing critical code review feedback, assisting and unblocking team members, contributing to and supporting team values and processes.
• Be responsible for all aspects of software engineering, from design to implementation, QA, operations and maintenance

Skills and Experience:

• Bachelor of Science in Computer Science or equivalent
• 8+ years of large scale, full life-cycle development experience
• Solid foundation in data structures and algorithms, as well as OO, API, and cache design; experience building high-performance and event-driven systems at large scale. 
• Experience with full stack web development in a domain-oriented microservices architecture using many of the following technologies: Java, JavaScript/React, AWS, Tomcat, Linux, PostgreSQL (RDS/Aurora), DynamoDB, and Snowflake
• Experience working in a tech lead capacity, designing and implementing complex software solutions and coordinating the work of other engineers
• Excellent communication and interpersonal skills
• Must be great team player that works well in collaborative and multi-cultural environments.

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 recruitment@tripadvisor.com 

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