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Matheus da Silva

@matheusdasilva1

Senior Supervisory Systems Analyst at NARI Brasil, upgrading SCADA/SAGE at Marimbondo II and moving toward OT cybersecurity.

Brazil
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What I'm looking for

I'm looking to advance into OT/ICS cybersecurity, applying my SPCS/SCADA engineering and high-voltage substation experience to protect critical utility infrastructure against cyber threats.

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

NB
Current

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.

CB

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.

CB

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.

Education

Degrees, certifications, and relevant coursework

PS

Postgraduate in Defensive Cyber Security

Postgraduate Specialization, Defensive Cyber Security

Ongoing postgraduate specialization in Defensive Cyber Security, expected to complete in late 2026.

FIAP logoFI

FIAP

Bachelor of Technology, Information Technology Project Management

Completed a Bachelor of Technology in Information Technology Project Management in January 2026.

IF

Instituto Nossa Senhora de Fátima

Technical Diploma, Electrotechnics

Completed a Technical Diploma in Electrotechnics in 2016.

Tech stack

Software and tools used professionally

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