Guilherme Martins
@guilhermemartins2
IT technician specializing in technical support, systems analysis, and data annotation.
BrazilWhat I'm looking for
I am an IT technician with solid experience in technical support (Level 1 & 2), systems analysis, and data annotation for AI/ML projects. I have a proven track record ensuring system stability, validating large datasets, reporting technical issues to engineering teams, and maintaining precise documentation.
I thrive under pressure and in production environments, delivering user support, hardware/software troubleshooting, and operational continuity for broadcast and enterprise systems. I am adaptable, a continuous learner, fluent in English, willing to relocate, and committed to clear communication and high-quality results.
Experience
Work history, roles, and key accomplishments
Data Annotator
Stepwise Inteligência e Serviço de Apoio à Decisão LTDA
May 2021 - Oct 2025 (4 years 5 months)
Performed large-scale data annotation and classification for AI/ML models, ensuring accuracy and consistency through strict quality-control processes and reporting technical issues to engineering teams.
Sports Commentator
Rádio 88.7 Cidade Livre FM
Aug 2017 - Jul 2018 (11 months)
Delivered live sports commentary and analysis in real-time broadcast environments, collaborating with production and technical teams under high-pressure conditions.
Systems Analyst
Rádio 88.7 Cidade Livre FM
Aug 2017 - Jul 2018 (11 months)
Provided on-site and remote IT support, installed and maintained software and OS, monitored system performance and resolved incidents to ensure uninterrupted broadcasting operations.
Education
Degrees, certifications, and relevant coursework
FATEC Mococa
Bachelor's Degree in Information Technology Management, Information Technology Management
Completed a Bachelor's degree in Information Technology Management with focus on IT operations, systems support, and technical administration.
Availability
Location
BrazilAuthorized to work in
Job categories
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