Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I am Mário Antônio Costa Júnior, a technology professional with over 20 years of IT experience spanning healthcare, academic research, and insurance. I have led data validation and migration initiatives, founded and served as CTO of a startup delivering ERP solutions for the public sector, and have managed multiple R&D projects at the Institute of Computing, UNICAMP. Today I work as a development consultant for Fitpark in São Paulo and as a co-founder of Claire in Lisbon, building an app platform that provides Eye Care Professionals with virtual technical support, calculations, and ordering tools for specialty contact lenses management. I enjoy architecting scalable systems, leveraging AWS, containers, and modern frameworks, and collaborating with cross-functional teams to deliver value.…I am Mário Antônio Costa Júnior, a technology professional with over 20 years of IT experience spanning healthcare, academic research, and insurance. I have led data validation and migration initiatives, founded and served as CTO of a startup delivering ERP solutions for the public sector, and have managed multiple R&D projects at the Institute of Computing, UNICAMP. Today I work as a development consultant for Fitpark in São Paulo and as a co-founder of Claire in Lisbon, building an app platform that provides Eye Care Professionals with virtual technical support, calculations, and ordering tools for specialty contact lenses management. I enjoy architecting scalable systems, leveraging AWS, containers, and modern frameworks, and collaborating with cross-functional teams to deliver value.

Mário Antônio Costa Júnior

Project Manager, Web Developer, Data Scientist, +2





I am Mário Antônio Costa Júnior, a technology professional with over 20 years of IT experience spanning healthcare, academic research, and insurance. I have led data validation and migration initiatives, founded and served as CTO of a startup delivering ERP solutions for the public sector, and have managed multiple R&D projects at the Institute of Computing, UNICAMP. Today I work as a development consultant for Fitpark in São Paulo and as a co-founder of Claire in Lisbon, building an app platform that provides Eye Care Professionals with virtual technical support, calculations, and ordering tools for specialty contact lenses management. I enjoy architecting scalable systems, leveraging AWS, containers, and modern frameworks, and collaborating with cross-functional teams to deliver value.…I am Mário Antônio Costa Júnior, a technology professional with over 20 years of IT experience spanning healthcare, academic research, and insurance. I have led data validation and migration initiatives, founded and served as CTO of a startup delivering ERP solutions for the public sector, and have managed multiple R&D projects at the Institute of Computing, UNICAMP. Today I work as a development consultant for Fitpark in São Paulo and as a co-founder of Claire in Lisbon, building an app platform that provides Eye Care Professionals with virtual technical support, calculations, and ordering tools for specialty contact lenses management. I enjoy architecting scalable systems, leveraging AWS, containers, and modern frameworks, and collaborating with cross-functional teams to deliver value.

Available to hire

I am Mário Antônio Costa Júnior, a technology professional with over 20 years of IT experience spanning healthcare, academic research, and insurance. I have led data validation and migration initiatives, founded and served as CTO of a startup delivering ERP solutions for the public sector, and have managed multiple R&D projects at the Institute of Computing, UNICAMP.

Today I work as a development consultant for Fitpark in São Paulo and as a co-founder of Claire in Lisbon, building an app platform that provides Eye Care Professionals with virtual technical support, calculations, and ordering tools for specialty contact lenses management. I enjoy architecting scalable systems, leveraging AWS, containers, and modern frameworks, and collaborating with cross-functional teams to deliver value.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

English

Advanced

Spanish; Castilian

Beginner

Portuguese

Fluent

Work Experience

CTO co-founder at Claire

November 1, 2023 - Present

Responsible for architecting and implementing the solutions necessary for the project's success. The platform provides Eye Care Professionals with virtual technical support, calculations, and ordering tools for specialty contact lenses management. The solution is developed in PHP with Apache and dockerized to run inside AWS.

Development consultant at Fitpark

December 1, 2021 - Present

Responsibility includes bug fixing, implementing new features, and developing a new software version while maintaining system stability. Currently exploring AI to automatically identify specific vehicle types (e.g., ambulances, police) using convolutional neural networks (CNN). Technologies include Python, Django, AWS, Docker, HTML, jQuery, CSS, TensorFlow, unit testing, and Asana for task management.

Project Manager at Institute of Computing - University of Campinas

May 1, 2017 - March 1, 2020

Managed multiple R&D projects (approximately eight) funded by private companies and the public sector. Responsibilities included task control (roadmaps and deadlines), resource management, financial oversight with disbursement planning, and delivering reports to government science agencies. Negotiated with multinational companies such as LG, Samsung, and Motorola.

CIO at Global Data Soluções de Internet

June 1, 2004 - August 1, 2016

Led the development of Data Health, an ERP solution for managing healthcare data across city health centers. Implemented agile processes, secured partnerships (e.g., Intel, VIVO), achieved SBIS certification, and handled data import/export (e.g., CID10 codes). Technologies included PHP, MySQL, JavaScript, Linux, SAAS, load balancing, and data governance.

Desenvolvedor/Manager at Neoassist Serviço de Internet

July 1, 2004 - August 1, 2008

Led a development team delivering solutions to exchange defective products for Nike Latin America; managed roadmaps, resolved conflicts, delivered presentations, and performed data migrations.

Developer at TopWay Comércio e serviços de informática

January 1, 1999 - July 1, 2003

Responsible for developing and managing IT solutions, coordinating data migrations and project deliveries, and maintaining client relationships.