Summary
Overview
Work History
Education
Skills
Languages
Timeline
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Javier Bello Carrillo

Cartago

Summary

  • MTA Microsoft Certified: Windows Server Fundamentals
  • PowerShell: Scripting for Server Administration
  • AZ-900 Microsoft Certified: Azure Fundamentals
  • AZ-104 Microsoft Certified: Azure Administrator
  • AZ-500 Microsoft Certified: Azure Security Engineer Associate

Overview

13
13
years of professional experience

Work History

Senior Systems and Infrastructure Engineer

Auxis LLC
05.2021 - Current

IT Infrastructure Ops and engineering for internal Auxis and external customers (Hybrid position):
• Windows Server maintenance (2008, R2, 2012, 2016, 2019, 2022).
• Windows Server migration/commission/decommission procedures.
• Extensive MS Active Directory, DNS, DHCP, ADFS, DFS services administration.
• MS NPS – RADIUS configuration and maintenance.
• In-depth AD replication problem solving.
• Entra ID and Entra Connect management/problem solving.
• 365 in-depth: Exchange, 365 SMTP, SharePoint, Defender and Power Platform.
• Teams Admin Center experience.
• Azure Entra ID services, including Identity, SSO, MFA, CA, RBAC, ACS, apps rollout, etc.
• Azure disk migration and resizing processes.
• Extensive Azure: Compute, Storage, PaaS, Backups, Network.
• Intune management: Apps, update policies, scripting, etc.
• AWS EC2 roll-up and maintenance.
• AWS workloads: IAM, Identity Center, Route53, Certificates, Lambda, peering and SSO.
• WSUS and SCCM patching systems knowledge.
• Hyper-V system management in-depth.
• Hardware management: datastores, vSphere, vCenter/ESXi, PowerEdge Dell and Lenovo XClarity.
• Storage solutions knowledge: ReadyNAS, QNAP Storage, PURE, Cisco UCS.
• Full backups implementation; strategy/DB/reporting/alerts configuration and maintenance: Microsoft Azure Backup Server (MABS), Azure, Veeam and MSP360.
• Security layer administration: Proofpoint, Barracuda, 365 Defender, SentinelOne, AlertLogic.
• Cisco Duo 2FA and Umbrella full administration.
• Daily monitoring over LogicMonitor including implementation processes.
• Sectigo and self-signed SSL certificates lifecycle: purchasing, upgrading and commissioning.
• Certificate routines with OpenSSL.
• Leading and mentoring other teams such as the Windows team, SMEs and Service Desk; creating documentation and knowledge data for Engineering, NOC and SD.
• Working as an escalation PoC engineer during P1 or critical incidents.
• On-call role and back-up Lead Engineer.

  • Streamlined processes by automating repetitive tasks using scripting languages such as Logic Apps, Runbooks, PowerShell.
  • Partnered with other IT teams to develop a cohesive strategy for integrating cloud-based solutions with existing infrastructure components.

Syniverse

ITS Systems Engineer
07.2019 - 04.2021

Intermediate Engineer level.Daily work under portfolio-management projects; main approach is to understand the company’s constant needs from the infra tech layer and then apply Microsoft IT changes.
• Microsoft Windows Enterprise support for the internal Microsoft environment that includes:
• Windows Server 2003, 2008 R2, 2012 R2; Windows 10 background.
• Monthly server patching coordinator.
• In charge of enterprise server decommission and continuous-improvement process.
• Active Directory management (AD users/machine objects, permissions provisioning).
• Troubleshooting technical issues raised by internal teams related to VMs in prod/lab envs (performance, remote access, server/client, Azure deployment).
• Domain Controllers, NPS, DFS and File servers maintenance and troubleshooting.
• DHCP/DNS server management.
• GPO template deployment and administration.
• Azure MFA and self-password user/computers management.
• PowerShell 5.0 scripting for admin tasks.
• Basic VMware vSphere 6.5 and 6.7 client; vCenter host handling.
• Basic Office 365 email troubleshooting.
• Basic SCCM knowledge and other IT apps such as LAPS and ADDM.

  • Demonstrated respect, friendliness and willingness to help wherever needed.

Azure VMs Support Engineer

Tek Experts
11.2018 - 07.2019

• Working with support-ticket assignment; each case with a specific support topic.
• Ability to configure/deploy ARM Virtual Machines on top of Windows OS & Linux distros.
• Windows Server 2016, 2019 basic administration.
• Azure administration on resources such as subscriptions, OS/data disks, Azure Backup, Scale Set, Azure Files, storage accounts, PowerShell modules and Azure alerts.
• Basic networking troubleshooting (basic commands, subnetting, VNets, IP reservation, migrations, DHCP, HTTPS/SSH, SMTP protocols, etc.).
• Azure metrics and diagnostic tools handling.

  • Documented technical issues and solutions to enable tracking history and maintain accurate logs.

Level I-II Support Engineer

Tek Experts
02.2015 - 06.2018

• Started as Level I (2015–2017).
• Technical support experience with Micro Focus IT product UCMDB (Universal Configuration Database Management).
• Troubleshooting/solving customer front-end (app) and back-end issues (bugs, XML classes).
• Handling requests such as opening bug reports, raising enhancement requests, testing and delivering hotfixes and CUPs (patches).
• Trainer role (T4 internal cert.) inside the team; recurring meetings with TAMs, R&D, and customers; helping the team with escalated sensitive cases.
• Virtualization mainly with VirtualBox and mRemoteNG remote clients.
• Programming languages: mainly Java and Python.
• On-call role

  • Connected to computer of client using remote link to install programs and applications.

Data Entry Operator

Telespazio Argentina
01.2014 - 12.2014

Professional services position.
• Transcription of cadastre and topographic information from physical scanned images (lots) to electronic media stored in the Registro Nacional de la Propiedad database.
• Tools used for daily tasks: Microsoft Excel, QGIS, tool to save each cadastre case.

Call Center Agent

All American Auto Protection
02.2014 - 03.2014

• Pre-sales and vehicle-insurance offering.
• Customer-service dedicated role.

Facilities Assistance

ICODER
02.2013 - 02.2013

• Assisting the logistics of resident students of the “Los Juegos Nacionales” championship at Joaquín García Monge School villa.
• Customer care and assistance with food, rooms, and navigation inside the villa’s facilities.

Education

Bachelor’s Degree, Systems Engineering -

Universidad Estatal A Distancia De Costa Rica
01-2019

Associate’s Degree, Computer Engineering

Universidad Estatal A Distancia De Costa Rica
San Jose, Costa Rica
01-2015

No Degree - English Communication With Native Speakers

Instituto Nacional De Aprendizaje (INA) — Certified
San Jose, Costa Rica
12-2013

Skills

  • System administration
  • Training and mentoring
  • Process Improvement
  • Written and Verbal communication skills
  • Critical and technical issues solving
  • IT security best practices
  • Cloud services

Languages

Spanish
Bilingual or Proficient (C2)
English
Advanced (C1)

Timeline

Senior Systems and Infrastructure Engineer

Auxis LLC
05.2021 - Current

Syniverse

ITS Systems Engineer
07.2019 - 04.2021

Azure VMs Support Engineer

Tek Experts
11.2018 - 07.2019

Level I-II Support Engineer

Tek Experts
02.2015 - 06.2018

Call Center Agent

All American Auto Protection
02.2014 - 03.2014

Data Entry Operator

Telespazio Argentina
01.2014 - 12.2014

Facilities Assistance

ICODER
02.2013 - 02.2013

Bachelor’s Degree, Systems Engineering -

Universidad Estatal A Distancia De Costa Rica

Associate’s Degree, Computer Engineering

Universidad Estatal A Distancia De Costa Rica

No Degree - English Communication With Native Speakers

Instituto Nacional De Aprendizaje (INA) — Certified
Javier Bello Carrillo