Summary
Overview
Work History
Education
Skills
References
Timeline
Generic
Jeronimo Orona

Jeronimo Orona

Los Angeles,CA

Summary

Results-driven Application Support Specialist with expertise in incident response, root cause analysis, and cloud solutions. Proven ability to enhance system stability and efficiency through proactive monitoring and troubleshooting.

Overview

19
19
years of professional experience

Work History

Application Support Specialist

FLYR
12.2023 - 02.2025
  • Delivered proactive application support by identifying and resolving potential issues before they impacted operations, ensuring reliability across FLYR's cloud-based airline solutions.
  • Helped establish the company's first Application Support Specialist team, building processes that strengthened system stability and efficiency.
  • Managed and troubleshot Apache Airflow DAGs and Argo Workflows by monitoring logs, performing root cause analysis, and controlling workflow lifecycles (suspend, resume, terminate) to resolve failures, optimize performance, and ensure high system uptime.
  • Built and scaled integrations within FireHydrant, PagerDuty, and Slack to trigger automated alerts from Datadog and Sentry, improving monitoring and response across all cloud applications.
  • Investigated, diagnosed, and troubleshot incidents, providing clear communication with both technical teams and non-technical stakeholders.
  • Documented resolution steps, maintaining an internal knowledge base for long-term efficiency.

Senior Technical Services Engineer

Kaleyra
04.2016 - 01.2023
  • Supported and executed product deployments and configuration changes within the Cloud, using change management processes within AWS, EC2, and/or Kubernetes.
  • Troubleshooting and resolution of production issues created in JIRA and ServiceNow, following ITIL principles.
  • Initiated and led cross-team collaboration in order to prioritize solution delivery.
  • Documented processes, authored Knowledge Base articles, and Runbooks within Confluence.
  • Performed root cause analysis, report creation, and impact analysis for critical issues using UNIX/SQL shell scripting.
  • Created shell scripts and cron tasks for any and all repetitive tasks requiring automation.
  • Analyzed network traces, TCP dumps, API calls, and SMS encoding for an in-depth analysis of performance-related issues.
  • Mentored and trained new TSEs and sales personnel as an SME and senior engineer.

Support and Implementations Engineer

TigerText
08.2015 - 04.2016
  • Engineered the implementation and integration of healthcare enterprises' existing user directories within the TigerText SaaS product.
  • Provided troubleshooting for escalated issues, with exceptional customer service.
  • Lead Engineer and point of contact for the implementation and deployment of the TigerText SaaS product.
  • Worked directly with development teams in both beta testing and UAT of patched releases.
  • Reduced project duration by 50%, met deadlines exceedingly ahead of schedule, and increased departmental efficiency.
  • Produced internal and customer-facing technical documentation, and Knowledge Base articles.

Senior Content Security Support Engineer

Cisco Systems, Inc
09.2005 - 06.2015
  • Worked with Cisco Secure Email customers to identify email infrastructure security issues, suggest available systems hardening methods, and support the implementation of encryption protocols such as SSL/TLS, StartTLS, and Envelope Encryption (CRES).
  • Excelled in troubleshooting and resolving complex issues, such as Data Loss Prevention (HIPAA, FERPA, PCI, SOX, and GLBA compliance), LDAP authentication (Microsoft Active Directory and OpenLDAP), email delivery, and envelope encryption.
  • Established the initial Support department for the IronPort Systems startup, and contributed to the development of an award-winning technical support team.
  • Supported all levels of Cisco IronPort Email Security customers during both the evaluation and post-sales periods.
  • Implemented clients' existing user database (RDBMS: Oracle, MS SQL, etc.) Within the Cisco product.
  • Administered customer configurations and Python scripting within a Unix (FreeBSD) CLI.
  • Trained and mentored staff, consulted on performance tuning and optimization, and offered Advanced Services (Content Filter scripting, etc.).
  • Identified the need for Knowledge-Centered Support and produced content for IronPort’s first globalized Knowledge Base, including instructional videos and technical blogs.

Education

Computer Science and Information Systems -

De Anza College

Skills

  • Application support
  • Root cause analysis
  • Knowledge Base Article publication
  • Monitoring tools (Datadog, Sentry)
  • Incident response (FireHydrant, PagerDuty)
  • Google Cloud Platform solutions
  • BigQuery analytics
  • Kubernetes orchestration (GKE)
  • SQL scripting
  • Version control with Git
  • Ansible automation
  • REST API development
  • Regulatory compliance
  • Unix and Linux systems
  • Bash scripting
  • Windows server administration
  • OS X operations
  • Active Directory management
  • Virtualization with VMware
  • Network protocols (TCP/IP)
  • XML data handling

References

Pawel Holderny

Sr. Manager, Airline Customer Support, FLYR

Email: pawel.holderny@gmail.com

"I had the pleasure of managing Jeronimo during his time as an Application Support Specialist at FLYR, where he supported our global airline customers while working in the Americas timezone. Jeronimo consistently delivered reliable support by following runbooks and ensuring smooth day-to-day operations, while also taking initiative to refine and adjust processes where improvements were needed. His structured and detail-oriented approach made him a dependable team member in a high-paced, customer-facing environment. What stood out most, however, was his ability to build and maintain strong relationships with our customers. His professionalism and communication skills helped foster trust and ensured issues were addressed with both technical accuracy and customer care. I am confident that Jeronimo will be a valuable asset to any organization looking for a dedicated and customer-focused support professional."

==============================================================

Fraser, Disney-Willis,

Senior Director, Platform Operations, Kaleyra

Phone: 310-463-1142 Email: willisf@gmail.com

"During the 6 years Jerry reported to me, he managed a series of complex, highly technical (in-house developed) applications and systems, with some integrated into client and vendor platforms. Jerry had to reverse engineer how these worked after our team inherited them through an acquisition. With no documentation or tribal knowledge handover, Jerry worked it out and created architecture and support documentation, including runbooks for our NOC, becoming the subject matter expert for these systems with no fallback to rely on. Jerry also regularly liaised with vendors, clients, and internal stakeholders and managed highly impactful incidents until resolution.

I was fortunate to have Jerry on my team, and I’d hire him again in a heartbeat."

==============================================================

Nasir Shakour

Support Manager / Escalation Manager , Cisco / IronPort

Email: nasirshakour@gmail.com

"Jerry was on the team of Customer Support Engineers reporting to me. He has a natural grasp of technology; but most importantly, works to find the right resources when needed. Jerry handled customer issues in the ticket queue with a laser like efficiency that made him often the top at case resolution in a quarter. He then turned those issues into solutions for the customer solutions database just as efficiently, which allowed his work to scale. Jerry also has a calm demeanor that gives confidence to the customers during conversations. Jerry definitely has my recommendation. If I was building another CSE team, Jerry would be one of the first people I called."

Timeline

Application Support Specialist

FLYR
12.2023 - 02.2025

Senior Technical Services Engineer

Kaleyra
04.2016 - 01.2023

Support and Implementations Engineer

TigerText
08.2015 - 04.2016

Senior Content Security Support Engineer

Cisco Systems, Inc
09.2005 - 06.2015

Computer Science and Information Systems -

De Anza College
Jeronimo Orona
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