Application & Middleware Management
Managed the complete lifecycle for over 60 critical financial applications, handling installation, configuration, updates, and incident resolution.
Professional Experience
Application Support Engineer – Unix
AFIRME FINANCIAL GROUP | 2024 - Present
High-Availability & Load Balancing
Administered and supported F5 BIG-IP and Apache-Proxy environments for load balancing, providing key configuration support to ensure application uptime.
Security Gateway Administration
Responsible for the administration and troubleshooting of IBM Datapower gateways, supporting API Connect and Integration BUS to secure system integrations.
Core Payment System Operations
Entrusted with supporting the operational integrity of Mexico's core payment systems (SPEI, SPID, & CoDi). My role is to help ensure the security and stability of high-volume, national-level interbank transactions.
Technical Skills
Operating Systems
- Red Hat Enterprise Linux
- AIX Administration
Middleware & Application Servers
- IBM WebSphere Application Server
- IBM WebSphere MQ
- IBM API Connect
- IBM Integration BUS
- Apache Web Server & Proxy
- Tomcat
Networking & Security
- F5 BIG-IP Load Balancing
- IBM Datapower Gateway
- SSL Certificate Management
Automation & Orchestration
- Ansible
- Bash Scripting
- BMC Control-M
Monitoring & APM
- Dynatrace
- Applications Manager
Core Competencies
- Incident Management
- Advanced Troubleshooting
- System Automation
Certifications & Training
- Linux Commands & Shell Scripting Essentials – IBM / Credly
- Fundamentals of Red Hat Enterprise Linux – Red Hat / Coursera
- Business Analytics with Excel: Elementary to Advanced – Johns Hopkins / Coursera
- Red Hat System Administration I (RH124) – Red Hat Training and Certification
- Red Hat System Administration II (RH134) – Red Hat Training and Certification
Education
Bachelor of Computer Science
Universidad Autónoma de Nuevo León, Monterrey
Professional License & Verification
This official credential, issued by the Government of Mexico's Secretary of Public Education, certifies the holder as a qualified professional, requiring the completion of a full university degree.
- Full Name for Verification: David Alejandro Urrea Miranda
- License Number: 14600993