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Carlos EsquivelCE
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Carlos Esquivel

@carlosesquivel

Ex-Information Security Analyst at Microsoft investigating security incidents with Defender XDR, KQL, and threat intelligence.

Costa Rica
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What I'm looking for

I’m looking to build and expand my knowledge in remote enterprise support and find a place where I can put that knowledge to the test while helping others and the company grow.

At Microsoft, I iused nvestigate complex security incidents using Microsoft Defender XDR, KQL, and threat intelligence to identify malicious activity and determine root cause.

I applied MITRE ATT&CK methodologies to analyze identity and cloud threats, then deliver customer-facing reports with actionable recommendations for incident response before I was impacted by the most recent round of layoffs.

Before moving into information security, I worked as an Azure Senior Network and Escalation Engineer at Microsoft, helping customers and partners resolve technical problems. At Concentrix, I troubleshot service provider networks for Juniper Networks, including routing protocols and Junos OS hardware issues.

My earlier support work included analyzing NetApp logs and support bundles to identify root causes and workarounds. I’m looking to build my knowledge in enterprise support and put it to use while helping others and contributing to a company’s growth.

Experience

Work history, roles, and key accomplishments

Microsoft logoMI
Current

Information Security Analyst

Oct 2024 - Present (2 years)

Investigated complex security incidents using Microsoft Defender XDR, KQL, and threat intelligence to identify malicious activity, assess attacker behavior, and determine root cause. Applied MITRE ATT&CK methodologies, analyzed identity and cloud threats, and delivered clear customer-facing reports with actionable recommendations to support effective incident response

Microsoft logoMI

Azure Senior Network and Escalation Engineer

Sep 2021 - Oct 2024 (3 years 1 month)

As a Network Engineers for Microsoft, I serve as a frontline technical resource for customers and partners via phone, email, chat or web. We deliver unique value by collaboratively and reactively solving customer problems, providing proactive support advice, contributing to product quality, etc.

Here's a list of the technologies I have become familiar with at my current role:

Strong knowledge

Concentrix logoCO

Juniper Network Engineer

May 2019 - Aug 2021 (2 years 3 months)

I work as Network Engineer for Juniper Networks as a contractor (Concentrix). My daily activities are troubleshooting service provider network protocols, such as BGP, OSPF, ISIS, Multicast, L3 and L2 VPNs, MPLS, LDP, RSVP, VPLS, STP family of protocols, etc.

I also deal with hardware issues on the different platforms running the Junos OS and work L1 & L2 cases.

Concentrix logoCO

Technical Support Storage Engineer

Nov 2017 - May 2019 (1 year 6 months)

I worked as a NetApp Technical Support Engineer. Throughout my experience at NetApp, I have learned to:

• Gather and convey technical information to customers while keeping in mind their business impact, sense of urgency, and whether this information will affect their temperature.

• To analyze logs, support bundles (collection of logs) to identify possible root causes and workarounds, while mee

Teleperformance logoTE

Technical Support Agent

Feb 2017 - Oct 2017 (8 months)

I supported the installation of Autodesk's programs and the installation of Windows licensing server services through phone/chat & emails, most of the time I performed the work under pressure since users were unable to continue with their projects until I provided a resolution to their issues while addressing their emotions since.

Hewlett Packard Enterprise logoHE

Accounts Payable Analyst

Dec 2015 - Nov 2016 (11 months)

My role at this account is to help vendors with their unpaid invoices or with general questions about their accounts with P&G, I have a back office role here as well where I used to check invoices from different vendors through emails using Microsoft Office products. I was selected Top-performer twice, in July 2016 and August 2016.

Education

Degrees, certifications, and relevant coursework

TS

TCM Security

Practical Junior Penetration Tester

Oct 2024

TS

TCM Security

Practical Network Penetration Tester

Dec 2024

CO

CompTIA

CompTIA Security+ ce Certification

Oct 2023 · Expires Oct 2026

CI

Cisco

Introduction to Cybersecurity

Jul 2020

JN

Juniper Networks

Juniper Networks Certified Professional, Service Provider Routing & Switching (JNCIP-SP)

Nov 2020 · Expired Nov 2023

JN

Juniper Networks

Juniper Networks Certified Specialist, Service Provider Routing & Switching (JNCIS-SP)

May 2019 · Expired Jul 2022

JN

Juniper Networks

Juniper Networks Certified Associate - Junos (JNCIA-Junos)

Jun 2019 · Expired Jun 2022

JN

Juniper Networks

Juniper Networks Certified Specialist, Enterprise Routing & Switching (JNCIS-ENT)

Sep 2019 · Expired Sep 2022

UU

Universidad de Costa Rica UCR

Academia de Technologia UCR - CCNA Modulos, Computer Systems Networking and Telecommunications

2016 - 2016

I've completed 4 modules of Cisco

LZ

Liceo Hernan Zamora

Bachelor's degree, Computer Systems Networking and Telecommunications

2007 - 2011

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