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Open to new opportunities · Guarulhos/SP, Brazil

IT Operations, Infrastructure & Automation

Systems Analyst with over 15 years of experience, combining corporate infrastructure management, high-level support and the development of automation that replaces critical manual routines.

View Experience Download CV (EN)
15+
Years of IT experience
T1 → T3
Support and operations
M&A
Expansion and integration
EN
International support

Companies I have worked with

Microsoft Visa Dasa Sanofi Linx BYJU'S AFIP 
# profile.py
class SystemsAnalyst:
    name       = "Odarcy Junior"
    focus      = ["Operations",
                  "Infrastructure",
                  "Support"]
    stack      = ["Python", "Flask",
                  "Linux", "Windows"]
    experience = 15  # years
    based      = "Guarulhos/SP, Brazil"
Professional profile

From the user's desk to automating the whole environment

I started answering tickets at Microsoft and spent the last fifteen years moving up the chain: VIP support for boards and executives, laboratory infrastructure during M&A operations, IT coordination for all of Brazil and, today, building the automation that keeps critical environments running.

That path gave me something rare: I understand the problem from the perspective of the person filing the ticket, the person keeping the server up, and the person writing the code that makes the ticket disappear.

Legacy modernization

Batch scripts converted into monitorable Python services.

Complex projects

IT rollout for new sites and post-acquisition integration.

High-level support

VIP service and international teams in the US, France and India.

Documentation

Procedures, knowledge base and team training.

Experience

Operations, infrastructure and support

Fifteen years keeping critical systems online, building the infrastructure behind them and supporting the people who depend on both.

Systems operations

Keeping critical applications running: advanced support, root-cause analysis and permanent fixes — from LIS systems and clinical equipment interfacing to corporate platforms.

Tier 2 & 3 support LIS systems Root cause VIP support

IT infrastructure

Wired and wireless networks, Windows and Linux servers, virtualization and endpoint security. Infrastructure rollout for new sites and environment integration during M&A operations.

Networking & Wi-Fi Hyper-V · VMware Active Directory M&A rollout

End-user support

From service desk to VIP support for boards and executives, in Portuguese and English, with teams in the US, France and India. Focused on SLA, documentation and training to cut repeat tickets.

Service desk International support ITIL Training

Career timeline

  1. 11/2024 — 07/2026 São Paulo, Brazil

    Systems Analyst

    AFIP — Associação Fundo de Incentivo à Pesquisa

    Operations and automation for the laboratory environment: advanced support for clinical analysis systems and development of the tools that replaced critical manual routines.

    • Advanced support for automation systems, clinical analysis equipment interfacing and the LIS (Laboratory Information System).
    • IT rollout for new outpatient and hospital units, ensuring correct system integration of the new analysis equipment.
    • Conversion of legacy Batch scripts into autonomous Python services (Windows Services), driven by external configuration files.
    • Flask visual interface and a TCP proxy server routing communication for multiple lab devices individually.
    • Automated Linux agent via systemd for continuous availability monitoring of local and external devices.
    Python Flask Windows Services systemd Proxy TCP LIS
  2. 06/2024 — 11/2024 São Paulo, Brazil

    IT Operations Consultant

    Visa Inc.

    Day-to-day field service operations in a merger and acquisition project, reporting to headquarters in the US and regional management in Brazil.

    • Planning and execution of field service activities in Brazil, including Microsoft, Apple and mobile device deployment.
    • Coordination of vendors and third parties for IT contracts, equipment orders and delivery assurance.
    • Oversight of hardware and software inventory and equipment distribution across all Brazilian offices.
    • Ensuring operations complied with internal policies, plus direct end-user support.
    M&A Field services Microsoft Apple Gestão de ativos
  3. 11/2022 — 06/2024 São Paulo, Brazil

    IT Coordinator

    BYJU'S FutureSchool

    Coordination of support and field service operations in Brazil, reporting to headquarters in India and to regional management.

    • Support for employees on Salesforce, Talkdesk and Google Workspace, focused on a fast and smooth experience.
    • Oversight of hardware and software inventory plus equipment setup and distribution across Brazil.
    • Tight control of IT costs, aligning spend with the strategy defined for the country.
    • Documentation of assets, systems and procedures, with performance, incident and project status reports.
    Coordenação Salesforce Google Workspace Talkdesk Custos de TI
  4. 07/2019 — 11/2022 Barueri, Brazil

    Senior Infrastructure Analyst

    Dasa S/A

    Infrastructure rollout for newly acquired laboratories (Brazil expansion and M&A), from network and workstation planning through post-delivery support.

    • Management of M&A integration support, minimizing operational impact during process and system migration.
    • Planning of workstation distribution and network infrastructure for the new units.
    • Oversight of inventory, procurement processes and correct equipment configuration across Brazil.
    • Evolution of IT procedures, with performance, incident and project status reporting.
    Infraestrutura Redes M&A Workstations Laboratórios
  5. 11/2014 — 07/2019 São Paulo, Brazil

    Senior Support Analyst — VIP Support

    Linx Sistemas

    Tier 2 and 3 support for the board, presidency and executives, with field service across Windows, macOS, iOS and Android environments.

    • Resolution of complex Tier 2 and 3 tickets for VIP staff, with priority handling and discretion.
    • Field service on mobile devices and computers: Windows, macOS, iOS and Android.
    • Asset control and evolution of IT procedures, with performance and incident reporting.
    Suporte VIP Windows macOS iOS · Android Field service

  6. Earlier career

    Career foundation: service desk, field support, quality and training — 2008 to 2014.

    12/2013 — 11/2014

    Senior Support Analyst

    Sanofi Aventis

    Tier 2 and 3 support and VIP service; coordination of Polycom and Cisco videoconferencing support.

    06/2013 — 12/2013

    Support Analyst

    CCI Tecnologia

    Field support across multiple clients, network installation and configuration, and knowledge base expansion.

    09/2012 — 06/2013

    Tier 2 Support Analyst

    Linx Sistemas

    Coordination of the Tier 1 field service team, backlog control and monthly management reporting.

    07/2008 — 06/2012

    Training Analyst · Support & Quality · Technical Support

    Microsoft Corporation

    Progression from technical support (phone, chat and email) to quality monitoring and delivering international training in English with headquarters.

Stack

Technical skills

The technologies I use to operate, automate and keep corporate environments running.

Development & automation

  • Python
  • PowerShell
  • Batch
  • Flask
  • APIs & integrations

Services & networking

  • Windows Services
  • Linux · systemd
  • Proxy TCP
  • Wired & Wi-Fi networks
  • VPN

Systems & virtualization

  • Windows Server
  • Windows · macOS
  • Hyper-V
  • VMware
  • VirtualBox

Identity & security

  • Active Directory
  • Microsoft 365
  • Google Workspace
  • Intune (MDM)
  • Defender · Sophos · Symantec
Portfolio

Automation in production

Solutions built for the AFIP laboratory environment, where manual routines became monitored services.

Linux agent · systemd

Continuous Device Monitoring

An automated Python agent, managed by systemd, that continuously checks the availability and connection status of local and external devices. The goal was simple: find the outage before the laboratory does, not after the first ticket arrives.

  • NOC dashboard with per-unit status, average latency and sync progress
  • Satellite agents reporting into a central inventory
  • Equipment action log: ticket, owner and maintenance window
  • systemd service with auto-restart and structured logging
PythonsystemdLinuxFlaskNOC
View the live dashboard
monitor.odarcyjr.tec.br
live
NOC device monitoring dashboard Open the dashboard
monitor.odarcyjr.tec.br
C:\services\lab-integration\service.log
03:00:01 INFO LabIntegrationService started (pid 4812)
03:00:01 INFO config.yaml loaded · 18 devices
03:00:04 INFO 1,284 results in the integration queue
03:01:37 WARN legacy-device not responding, retry in 30s
03:02:07 INFO legacy-device reconnected · batch reprocessed
03:04:52 OK 1,284/1,284 integrated into the LIS · 0 losses
03:04:52 INFO audit trail written
03:04:53 INFO report sent to the central inventory
03:04:53 INFO next run scheduled for 04:00:00
$
Illustrative mockup — drop static/img/<project>_thumb.png in to show the real screen.
Legacy modernization

From Batch to Windows Services

Conversion of the laboratory's legacy Batch scripts into autonomous Python services running as Windows Services and governed by external configuration files — tuning a routine no longer means editing code.

  • Continuous, resilient execution with automatic restart
  • External configuration: parameters without touching the code
  • Traceable logs for auditing every transfer
Windows ServicesPythonBatchLogging
AWS infrastructure

This site is the infrastructure case study

The portfolio runs on an Ubuntu EC2 instance that already hosted another application — Nginx separates the two by domain, and each one has its own internal port and its own systemd service. Everything described below is standing up right now, serving this page.

Nginx & Gunicorn

Nginx routes by server_name and serves static assets straight from disk; Gunicorn runs Flask over WSGI on its own internal port, isolated from the other application on the instance.

Layered security

A Security Group allowing only 80, 443 and SSH, ufw filtering at the OS level, and security headers set by the application itself.

Automated TLS

Certbot wired into Nginx issuing a Let's Encrypt certificate for the domain, with automatic renewal via a systemd timer.

Coexisting services

A dedicated systemd unit with auto-restart and a /healthz health check — one application going down does not take the other with it.

Request flow

Visitor (browser) odarcyjr.tec.br
DNS · A record EC2 Elastic IP
Nginx · reverse proxy :443 TLS
Gunicorn · WSGI :8010 internal
Flask · app.py templates/index_en.html

Static assets served straight from Nginx with a one-year cache · fonts and icons self-hosted, no external CDN dependency.

Credentials

Education, certifications and languages

Education

Technology Degree in Information Technology Management

Centro Universitário Eniac

In progress · expected completion 06/2027

Technical Course in IT

SENAC — Centro de Educação em Informática

Completed 12/2004

Certifications

  • AZ-900 Microsoft Azure Fundamentals
  • MS-900 Microsoft 365 Fundamentals
  • SC-900 Security, Compliance and Identity
  • ITIL IT Foundation prep course (ITIL Foundations)

Languages

Portuguese

Native

English

Advanced — supporting teams in the US, France and India

Contact

Let's talk

Available for roles in systems operations, IT infrastructure and automation — on-site, hybrid or remote, with availability for domestic and international travel.

Email odarcyjr@gmail.com WhatsApp +55 11 99263-2377 LinkedIn linkedin.com/in/odarcyjr
Download full résumé (PDF)