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 Enterprise Middleware Engineer is responsible for the reliability, security, and performance of enterprise integration and messaging platforms, including GoAnywhere MFT, AWS ElastiCache, AWS MSK (Kafka), and IBM MQ. This role owns platform operations (build, run, and support), automation, incident/problem management, capacity planning, and works closely with application, infrastructure, and security teams to enable secure data movement and event-driven integration at scale. 

What You'll Do

• Administer, configure, and support Go Anywhere MFT (workflows, secure file transfers, keys/certs, user/partner onboarding, scheduling, auditing). 
• Operate and maintain AWS MSK (Kafka) clusters (brokers, topics, partitions, replication, retention policies, upgrades/patching, client connectivity). 
• Administer IBM MQ environments (Queue Managers, channels, queues, clustering, SSL/TLS, HA/DR, monitoring, performance tuning). 
• Manage AWS ElastiCache (Redis/Memcached) including scaling, failover, backups/snapshots, parameter tuning, and performance optimization. 
• Ensure high availability, resilience, and disaster recovery readiness (RTO/RPO alignment, failover tests, runbooks). 
• Work with application teams on integration patterns, client configuration, connectivity troubleshooting, and best practices. 
• Coordinate with InfoSec, Networking, and Cloud Platform teams on secure network paths (VPC, subnets, security groups, NACLs, private endpoints). 
• Implement and maintain TLS/mTLS, certificate lifecycle management, encryption standards, secrets management, and secure authentication/authorization. 
• Support compliance requirements (audit logging, access reviews, change control, least privilege). 
• Partner onboarding/offboarding for MFT and secure integration endpoints

What We're Looking For

• 3 - 5 years’ experience in middleware/integration/platform engineering roles supporting production systems. 
• Hands-on administration experience (3 - 5 Years) with at least two of the following: Kafka (AWS MSK), GoAnywhere MFT, AWS ElastiCache (Redis/Memcached), IBM MQ 
• Strong understanding of messaging/integration concepts: queues/topics, pub-sub, delivery semantics, ordering, retries, dead-letter handling, and back-pressure. 
• 3 - 5 Years of experience with Linux administration, networking fundamentals (DNS, TLS, firewalls, ports), and troubleshooting distributed systems. 
• Working knowledge of AWS core services and constructs: VPC, IAM, EC2, CloudWatch, security groups, KMS, Secrets Manager/Parameter Store. 
• Production support experience including incident management, RCA, and change/release processes. 
• Scripting/automation skills (Python/Shell) and familiarity with IaC (Terraform/CloudFormation). 
• Excellent documentation and communication skills; ability to work cross-functionally

Preferred Qualifications 

• Deep expertise in one or more platforms: 
• IBM MQ: MQ clustering, multi-instance QM, AMS, advanced channel auth records (CHLAUTH), TLS mutual auth. 
• Kafka/MSK: broker sizing, partitioning strategy, consumer lag tuning, ACLs/SASL, schema registry patterns, MirrorMaker/replication. 
• GoAnywhere MFT: advanced workflows, API integration, PGP automation, partner lifecycle management, compliance auditing. 
• ElastiCache Redis: clustering/sharding, replication groups, persistence strategy (AOF/RDB), latency tuning. 
• Experience implementing DR strategies and performing resiliency testing (game days / failover drills). 
• Certifications (nice-to-have): AWS Certified Sy sops/DevOps, IBM MQ certification, Confluent/Kafka training, security fundamentals. 

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 20,000 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 don’t meet every requirement? If you’re passionate about our mission and believe you’d be a phenomenal addition to our team, don’t worry about “checking every box;" please apply anyway. You may be exactly the person we’re looking for!