Principal Engineer: Marketplace Search 

Amex GBT is a place where colleagues find inspiration in travel as a force for good and – through their work – can make an impact on our industry. We’re here to help our colleagues achieve success and offer an inclusive and collaborative culture where your voice is valued. 

The Marketplace Search team builds features and experiences to empower our travelers to search for all our product offerings and allow travelers to book their complete trips on the platform.  

Summary of Job Description :

To provide nextGen Search architecture and leadership to Marketplace Team across our GBT Solutions. This position will closely work with Product owners, business partners and Search engineers to come up with nextGen architecture plans, technology choices, design and lifecycle, and information integrity. A search principal engineer will resolve,  develop architectural approaches & solutions, conduct architectural reviews and recommend how to proceed with the applications (replace, retire, maintain, etc.).

What you'll do:

• Owning the development of nextGen Architecture Solutions for Marketplace Team.
• Leading in the evaluation of new technology around Search – Semantic search, LLMs, Vector Databases.

• Drive overall search platform roadmap and implementations 

• Participate in the Architecture assessment and design for infrastructure domains that provide core capabilities for the Marketplace. 

• Participate in the Architecture design of integrated systems across Marketplace and GBT solutions. 

• Define which data is extracted and the rules by which it is transformed for simple to moderately sophisticated projects. 

• Participate in nextGen technology evaluation and recommendations. 

• Participate in the development and maintenance of current and planned north star architecture. 

• Applies a GBT wide view to support the adoption of standards and practices and promote reuse, specifically around AI Search. 

• Participate in the design and implementation of Marketplace data model and metadata structures. 

• Participates in the analysis of technology industry and market trends to resolve their potential impact on the Marketplace Architecture. 

What You Will Have: 

• Ability to effectively communicate with internal and external teams that include business partners and third-party vendors. 

• Guides engineers and resources on the techniques and approaches used in design processes. 

• Resolves moderately complex issues that occur on the Search platform roadmap and design processes. 

• Communicates with stakeholders and business partners to elicit and gather client requirements. 

• Knowledge of techniques and tools that promote effective analysis; ability to resolve the root cause of organizational problems and create alternative solutions that resolve these problems. 

• Collaborate with data engineers to curate and process large text datasets for model training  

• Integrate LLMs into product applications and build intuitive interfaces for model interaction 

• 5+ years of experience in a technical leadership role and setting technical direction. 

• 3+ years of experience working in a complex, matrixed organization involving cross-functional, and/or cross-business projects 

Consideration For Top Candidates Include: 

• Position requires a four-year degree from an accredited college or university in computer science, information technology, or related field or equivalent work experience. 

• 10+ years of relevant engineering experience 

• Exposure to Large Language Models (Open AI LLMs), AI app development frameworks, Vector databases and NLP 

• Experienced with open-source search technologies that may include Elasticsearch or Solr. 

• Hands-on coding experience with Java and Spring framework. 

• Expertise with Search engine optimization, mapping user journeys, search relevancy and high availability architecture 

• eCommerce platform experience.  

• Metadata, taxonomy, and search integration experience 

• Strong demonstratable experience delivering components, products, and/or experiences in public cloud and/or hybrid eco-systems. 

• Cloud development experience that may include AWS, Azure, etc. 

• In-depth understanding and experience in two or more of the following: complex e-commerce applications, substantial real-time event and message processing, data lakes, cloud data processing, SQL and NoSQL data modeling. 

• Strong understanding of Agile SDLC implementation in proud eco-system including environments management, test automation, peer review, CI/CD, optimization, etc. 

• Must have excellent communication skills and be able to deal with critcal issues, mentor and coach and/or persuade others on new technologies, new applications, or potential solutions. 

The #TeamGBT Experience 

Work and life: Find your happy medium at Amex GBT. 

• Flexible benefits are tailored to each country and start the day you do. These include health and welfare insurance plans, retirement programs, parental leave, adoption assistance, and more. 

• Travel perks: get a choice of deals each week from major travel providers on everything from flights to hotels to cruises and car rentals. 

• Develop the skills you want when the time is right for you, with global tuition assistance, access to over 20,000 courses on our learning platform, leadership courses, and new job openings available to internal candidates first. 

• We strive to champion Diversity, Equity, and Inclusion in every aspect of our business at GBT. You can connect with colleagues through our global Inclusion Groups, centered around common identities or initiatives, to discuss challenges, obstacles, achievements, and drive company awareness and action. 

• Wellbeing resources to support mental and emotional health for you and your immediate family. 

• And much more!