Operational ownership
60+ applications. One connected environment.
I support the complete lifecycle of critical financial applications, from incident diagnosis and controlled change to middleware health and production stability.
SYS.OPS / MTY25.6866° N · 100.3161° W
Critical systems.Calm operations.
I'm David Urrea, a Unix application support engineer working where uptime, security and clear thinking matter.
RHEL / AIXWEBSPHERE / MQF5 / DATAPOWERANSIBLE / BASH
Not everything important is visible. My job is to understand what connects underneath and keep it dependable.
$ cat /career/experience.log
2024 / NOWCURRENT NODE
Application
Support Engineer
AFIRME Financial Group · Unix
HIGH AVAILABILITY
National payment rails
SPEI · SPID · CoDi
I help keep essential payment systems secure, traceable and available every day.
How I operate:
- MONITORINGDynatrace and Applications Manager
- DIAGNOSISUnix hosts, middleware and network paths
- AUTOMATIONRepeatable work with Ansible and Bash
- PREVENTIONCertificates, gateways and controlled change
Operational details are intentionally generalized. Good security also means knowing what not to publish.
$ ./map-stack --verbose
TOOLS I TRUSTOperating systems
Red Hat Enterprise Linux · AIX
Middleware
WebSphere Application Server · MQ · Integration Bus · Tomcat
Traffic & security
F5 BIG-IP · DataPower · API Connect · Apache Proxy · SSL/TLS
Automation & control
Ansible · Bash · Control-M · Dynatrace
$ ls -la /credentials
LEARNING_PATHEducation · 2018-2024
Bachelor of Computer Science
Universidad Autónoma de Nuevo León
Monterrey, México
Professional license · 14600993
Open official registry ↗- 01Cybersecurity Basics 4.0Asociación de Bancos de México↗
- 02Linux Commands & Shell ScriptingIBM / Credly↗
- 03Fundamentals of Red Hat Enterprise LinuxRed Hat / Coursera↗
- 04Business Analytics with ExcelJohns Hopkins / Coursera↗
- 05Payment Systems: SPEI, SPID & BDTAfi Global Education · 2025✓
- 06Fraud PreventionAsociación de Bancos de México · 2026↗
- 07AML & Counter-Terrorism Financing 8.0Asociación de Bancos de México · 2026↗
- 08AI Fluency Framework & FoundationsAnthropic · 2026↗
- 09Red Hat System Administration I & IIRH124 · RH134✓
$ ./open-channel --secure
Need someone who stays clear when systems don't?
● CONNECTION READY