Senior API Gateway Developer

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. Were here to help our colleagues achieve success and offer an inclusive and collaborative culture where your voice is valued.

We are seeking an API Gateway Engineer with strong hands-on experience designing building securing and operating API platforms using AWS API Gateway and/or Apigee. The role will focus on API lifecycle management traffic governance security (OAuth2/OIDC JWT mTLS) policy development observability and reliable CI/CD-based deployments. The ideal candidate will also bring full-stack development experience to help teams build and integrate backend services and modern web applications and to drive best practices for API design versioning documentation and performance.

• Design develop and operate API gateways and API management platforms (AWS API Gateway Apigee) for internal and external consumers.
• Build and manage API products proxies routes/resources stages/environments throttling quotas caching and usage plans.
• Implement API security patterns: OAuth2/OIDC JWT validation API keys mTLS WAF integration rate limiting and threat protection.
• Develop and maintain gateway policies (Apigee policies / AWS authorizers request/response transformations validation mediation).
• Build serverless and container-based integrations using AWS Lambda ECS/EKS and any backend services using any one of the programming languages such as Java/Spring Boot or or Python.
• Implement API governance: REST standards naming conventions versioning strategy backward compatibility and deprecation process.
• Create and maintain API specifications (OpenAPI/Swagger) documentation developer portal content and onboarding guides.
• Integrate API gateway with IAM Cognito/Identity providers secrets management and certificate management.
• Set up end-to-end observability: logs metrics traces dashboards and alerts using any one of the platforms including CloudWatch OpenTelemetry ELK or New Relic.
• Diagnose and resolve production issues related to latency throttling auth failures routing certificates and backend dependencies.
• Build and maintain CI/CD pipelines and automation (GitHub Actions/Jenkins Terraform/CloudFormation Maven/npm) for repeatable deployments.

What Were looking for

• Experience Required-5 years in API
• Strong hands-on experience with AWS API Gateway (REST API / HTTP API) stages deployments custom domains throttling caching usage plans and integrations.
• OR strong hands-on experience with Apigee including API proxies policies shared flows environments and deployments.
• Strong understanding of REST API design and best practices; experience with OpenAPI (Swagger).
• Solid experience implementing API security: OAuth2/OIDC JWT API keys RBAC mTLS certificates and integration with IdPs.
• Experience with backend integration patterns: synchronous REST async/event-driven basics; request/response transformation and validation.
• Good proficiency in at least one backend language/framework (Java/Spring Boot or or Python).
• Full-stack understanding: ability to work with front-end frameworks (React or Angular) and connect to APIs.
• Experience with AWS fundamentals: IAM VPC CloudWatch Lambda S3 KMS Route 53 ACM (certificates).
• Strong troubleshooting skills in distributed systems (timeouts retries rate limits TLS issues dependency failures).
• Strong communication and documentation skills for cross-functional work.

Location

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.

• Develop the skills you want when the time is right for you with access to over 20000 courses on our learning platform leadership courses and new job openings available to internal candidates first.

• 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!

All applicants will receive equal consideration for employment without regard to age sex gender (and characteristics related to sex and gender) pregnancy (and related medical conditions) race color citizenship religion disability or any other class or characteristic protected by law.

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.

What if I dont meet every requirement If youre passionate about our mission and believe youd be a phenomenal addition to our team dont worry about checking every box; please apply anyway. You may be exactly the person were looking for!