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.
We are looking for a passionate and highly skilled full stack senior engineer with strong technical depth and a keen interest to build and scale next-generation customer
This role operates in a fast-paced, highly matrixed environment with geographically distributed teams and integral technology partners.
What You'll Do
Ensure high standards of quality, reliability, security, and performance across traditional software components.
Collaborate closely with Architecture and Data Platform teams to define technical principles, data strategy, and system foundations.
Proactively identify risks and bottlenecks related to data dependencies, model performance, scalability, and production readiness, and drive cross-functional resolution.
Build and maintain backend services using Java and NodeJS in a microservices architecture.
Develop intuitive and responsive user interfaces using React and JavaScript.
Integrate and consume RESTful APIs and ensure efficient data flow between frontend and backend systems.
Write reusable, testable, and efficient code in Python as needed for backend scripts or services.
Implement secure authentication and authorization flows using OKTA integration (SAML).
Participate in code reviews, design discussions, and contribute to team knowledge sharing.
Troubleshoot and debug complex issues across the stack.
Collaborate with DevOps for deployment,



CI/CD pipelines, and monitoring.
What We're Looking For
7-10 years of software engineering experience, with 2+ years in a technical lead role.
**Strong hands-on experience in**:
Java, and Spring framework
Microservices architecture
REST APIs and service integration
Public cloud platforms (AWS)
Hands-on experience with ReactJS and modern JavaScript (ES6+).
Solid understanding of microservices architecture and design patterns.
Experience building and consuming REST APIs.
Experience with Python for backend scripting or service development.
Proven experience integrating with OKTA or similar identity management providers.
Strong understanding of secure coding practices and OAuth2/SAML flows.
Familiarity with CI/CD tools, Git, and Agile development practices.
Excellent problem-solving, and teamwork skills.
Excellent oral and written communication skills in English.
**Nice to have**:
Experience building or supporting systems that integrate with AI/ML components such as model inference services, data pipelines, or intelligent automation workflows is a plus.
Familiarity with cloud-native services.
Experience in Expense Management and Travel industry domains.
Knowledge of GoLang and Cloude code.




Exposure to responsible AI practices, governance, or compliance considerations.
Knowledge in AI/ML platforms or frameworks is a plus.
Experience in NodeJS
**Education**:
- Bachelor's or Master's degree in Computer Science, Information Technology, or a related field.
Location Mexico City, Mexico
Click here to learn more about the benefits we offer in Mexico.
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 wellbeing resources to support you and your immediate family.
**Travel perks**: get a choice of deals each week from major travel providers on everything from flights to hotels to cruises and car rentals.
We strive to champion Inclusion in every aspect of our business at Amex 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.
And much more!
Click Here for Additional Disclosures in Accordance with the LA County Fair Chance Ordinance.
Furthermore, we are committed to providing reasonable accommodation to qualified individuals with disabilities.
Please let your recruiter know if you need an accommodation at any point during the hiring process.
For details regarding how we protect your data, please consult the Amex GBT Recruitment Privacy Statement.

📌 Full Stack Senior Engineer (Xico)
🏢 American Express Global Business Travel
📍 Xico