
Matheus da Silva
@matheusdasilva1
Senior Supervisory Systems Analyst at NARI Brasil, upgrading SCADA/SAGE at Marimbondo II and moving toward OT cybersecurity.
What I'm looking for
At NARI Brasil, I execute work on SPCS, SCADA, and substation supervisory systems, including IEC 61850 integration and OT network infrastructure. I'm leading the SCADA/SAGE upgrade at Marimbondo II Substation, establishing parallel operation with NS3000 systems across shared IEDs.
At CYMI Brasil, I supervised field engineering teams on high-voltage transmission projects, coordinating integration, testing, and commissioning. I also deployed and validated redundant PRP/RSTP network topologies using RedBoxes.
I'm building on my substation automation experience to move into OT/ICS cybersecurity. I'm pursuing a postgraduate specialization in Defensive Cyber Security and developing knowledge of IEC 62443, IEC 62351, NIST, and ISO/IEC 27001.
Experience
Work history, roles, and key accomplishments
Senior Supervisory Systems Analyst
NARI Brasil
Dec 2025 - Present (9 months)
Executes technical activities on SPCS, SCADA, and substation supervisory systems, managing IEC 61850 integration and mission-critical OT network infrastructure. Leads SCADA/SAGE system upgrades and performs advanced troubleshooting.
SPCS Technical Supervisor
CYMI Brasil
Oct 2023 - Dec 2025 (2 years 2 months)
Supervised field engineering teams on high-voltage SPCS and substation automation transmission projects, overseeing operational schedules, multi-vendor integration, functional testing, and commissioning. Coordinated multiple field work fronts and acted as primary technical interface with client engineering representatives.
Substation / SPCS Specialist Technician
CYMI Brasil
Jan 2022 - Nov 2023 (1 year 10 months)
Executed IED integration, communication verification, parameterization, logic validation, and formal commissioning within SPCS architectures. Conducted SAGE supervisory system integration, point-to-point command testing, energization support, and assisted operation during commissioning phases.
Automation Systems Analyst
ABOUT Brasil
Jul 2021 - Jan 2022 (6 months)
Delivered automation system engineering, system integration, supervisory interface configuration, and diagnostic evaluations of industrial control systems. Supported configuration, functional verification, and testing of industrial automation platforms.
Automation and Control Technician
ABOUT Brasil
Oct 2018 - Jul 2021 (2 years 9 months)
Executed field technical activities involving automation, control loops, and electrical systems related to industrial facilities and energy infrastructure. Performed diagnostic routines, hardware installations, and preventive maintenance on automation equipment.
Education
Degrees, certifications, and relevant coursework
Postgraduate in Defensive Cyber Security
Postgraduate Specialization, Defensive Cyber Security
Ongoing postgraduate specialization in Defensive Cyber Security, expected to complete in late 2026.
FIAP
Bachelor of Technology, Information Technology Project Management
Completed a Bachelor of Technology in Information Technology Project Management in January 2026.
Instituto Nossa Senhora de Fátima
Technical Diploma, Electrotechnics
Completed a Technical Diploma in Electrotechnics in 2016.
Availability
Location
Authorized to work in
Salary expectations
Social media
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