Nicolas Rabelo
@nicolasrabelo
Full Stack Developer at HL Systems who helped replace a Delphi system with web and mobile ordering tools, cutting operating costs by 20%.
BrazilWhat I'm looking for
At HL Systems, I contributed to replacing a legacy Delphi system with a web and mobile platform for managing orders and deliveries. The new system reduced operating costs by 20% and delivered responses up to three times faster.
I developed the web front end in React and the mobile front end in React Native, with a Python and Flask back end. I also maintained the legacy systems during migration so users could continue working without interruption.
My projects include finderCafé, a React app that finds nearby cafés using geospatial searches and an interactive map, and Bibliopedia, a book-review platform. I’m pursuing a postgraduate qualification in Blue Team cybersecurity at FIAP and am interested in secure development and DevSecOps.
Experience
Work history, roles, and key accomplishments
Assistente de Programação
HL Systems
Dec 2024 - Present (1 year 10 months)
Developed a complete order and delivery management system (web and mobile) from scratch, replacing a legacy Delphi system and reducing operational costs by 20%. Maintained legacy systems during migration and participated in Scrum ceremonies.
Education
Degrees, certifications, and relevant coursework
FIAP
Pós-graduação, Cybersecurity
2026 -
Ongoing postgraduate specialization in Cybersecurity (Blue Team), started in August 2026.
Alura
Segurança da Informação para todos, Information Security
Completed the Information Security for All certification in August 2026.
Cisco
Introduction to Cybersecurity, Cybersecurity
Completed the Introduction to Cybersecurity certification in June 2026.
Impacta Tecnologia
Tecnólogo, Systems Analysis and Development
Completed Technologist degree in Systems Analysis and Development in June 2025.
Tech stack
Software and tools used professionally
Availability
Location
BrazilAuthorized to work in
Portfolio
finder-cafe.vercel.appSalary expectations
Social media
Job categories
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