J. Sebastian Mateus

IT/Cloud Technologies Professional

Atlanta, GA 30339

contact@sebastianmateus.com    +1 470 800 1046

Professional Summary

I am a seasoned IT professional with 5+ years of experience in hardware and software support, passionate about empowering enterprises through cloud and hybrid ecosystems.

My professional goal is to become an expert in Microsoft Azure, focusing on endpoint management, IT infrastructure, and cloud deployment to help businesses optimize and modernize their technology environments.

I thrive on solving complex challenges, mastering emerging technologies, and delivering impactful solutions that drive efficiency and innovation.

Fluent in English and Spanish.

Skills & Knowledge

  • System Engineering
  • Dev/Ops
  • APIs
  • Identity & Access Management
  • Automation
  • Large Language Models
  • TCP/IP
  • DNS
  • DHCP
  • OSI Model
  • Firewalls
  • IP Filtering (NSGs)
  • Virtualization
  • Windows
  • Azure Cloud
  • Microsoft 365
  • AWS
  • Intune
  • GitHub
  • Generative AI
  • Windows
  • MacOS
  • Android
  • iOS
  • Linux
  • Mobile Device Repairs
  • PC Hardware Assembly
  • Hardware Diagnosis
  • Salesforce
  • Zendesk
  • ServiceNow
  • Slack
  • Outlook
  • Microsoft Teams
  • Cisco Jabber
  • Active Listening
  • Empathy
  • Clear Communication
  • Adaptability
  • Conflict Resolution
  • Reliability
  • Resilience
  • Resourcefulness
  • System Engineering
  • Dev/Ops
  • APIs
  • Identity & Access Management
  • Automation
  • Large Language Models
  • TCP/IP
  • DNS
  • DHCP
  • OSI Model
  • Firewalls
  • IP Filtering (NSGs)
  • Virtualization
  • Windows
  • Azure Cloud
  • Microsoft 365
  • AWS
  • Intune
  • GitHub
  • Generative AI
  • Windows
  • MacOS
  • Android
  • iOS
  • Linux
  • Mobile Device Repairs
  • PC Hardware Assembly
  • Hardware Diagnosis
  • Salesforce
  • Zendesk
  • ServiceNow
  • Slack
  • Outlook
  • Microsoft Teams
  • Cisco Jabber
  • Active Listening
  • Empathy
  • Clear Communication
  • Adaptability
  • Conflict Resolution
  • Reliability
  • Resilience
  • Resourcefulness

Work Experience

Desktop Configuration Analyst II

Tekstream Solutions, Atlanta, GA — November 2024 - Present

Assigned to Chick-Fil-A Inc - Contract

  • Configured and deployed enterprise 4000+ laptops and mobile devices using MDM tools like Intune, Microsoft Autopilot, and Entra in hybrid environments.
  • Ensured security compliance by auditing devices with Intune, Workspace ONE, Carbon Black, and Azure Security Center.
  • Managed IT requests, device staging, and inventory through ServiceNow.
  • Led Hardware Asset Management (HAM) initiatives to improve tracking and lifecycle management.
  • Streamlined operations with IT documentation and provisioning guides.
  • Provided credential management support with SailPoint and Entra ID.
  • Collaborated on cross-functional projects to enhance hybrid cloud infrastructure.

Bilingual Technical Support Specialist

CDE Inc., Marietta, GA — July 2024 - November 2024

  • Provided technical support for EBT, WIC, ECC, and POS systems.
  • Troubleshot hardware, software, and network issues.
  • Resolved merchant inquiries efficiently using CRM and ticketing systems.
  • Maintained performance metrics and collaborated with internal teams.
  • Processed equipment orders as needed.

Bilingual Technical Support Analyst

Assurant, Atlanta, GA — June 2022 - July 2024

  • Provided bilingual technical support primarily for T-Mobile customers.
  • Supported multiple operating systems including Microsoft, MacOS, Android, and iOS.
  • Diagnosed and resolved incidents across various platforms.
  • Utilized remote access tools for efficient support.

Bilingual Medical Collections & Billing Agent

Hollis Cobb Associates, Atlanta, GA — April 2021 - June 2022

  • Managed accounts receivable for Northside, Well Star, and Grady hospitals.
  • Handled an average of 200 calls per day in collections.
  • Secured patient payments using strict security protocols.
  • Coordinated with the AR department for insurance claim submissions.

Field Repair Technician for Device Insurance Claims

Asurion, Atlanta, GA — October 2019 - April 2021

  • Performed 1000+ certified repairs on mobile devices across multiple brands.
  • Provided on-site support and repair services for device insurance claims.
  • Managed repairs, sales, and POS system operations.
  • Mentored new hires to improve team competency.

Mobile Device and Computer Technician

uBreakiFix, Duluth, GA — July 2019 - October 2019

  • Repaired 500+ mobile electronics and computers.
  • Conducted authorized repairs using official parts and software.
  • Managed back-of-house operations.
  • Provided leadership support when needed.

Portfolio

Project 1

Project Title 1

Short description for project 1.

View Project
Project 2

Project Title 2

Short description for project 2.

View Project
Project 3

Project Title 3

Short description for project 3.

View Project

Education

SAE Institute of Technology — Diploma in Audio Engineering (2012-2013)