Open to opportunities

René Bizelli

@renbizelli

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Senior Full Stack Developer with over 15 years of experience.

Brazil

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What I'm looking for

I'm looking for a collaborative environment that values innovation and growth.

I'm a Senior Full Stack Developer with over 15 years of experience in software development, specializing in both backend and frontend technologies. My expertise includes implementing robust APIs and creating modern, intuitive interfaces. I've worked across various sectors such as finance, fraud prevention, CRM, pharmaceuticals, HR, oil, tourism, real estate, and geolocation, participating in projects from conception to final delivery.

In my recent role at ClearSale, I was part of a multidisciplinary team responsible for the implementation and maintenance of a sales analysis management application. I handled large volumes of data and integrated systems through messaging, while also mentoring junior developers. My key achievements include creating a new version of the application with enhanced UI/UX features, migrating databases from SQL to MongoDB, and implementing workers for data synchronization between systems.

With a strong foundation in both technology and team collaboration, I am committed to continuous improvement and delivering high-quality solutions. I hold advanced degrees in Software Engineering and Information Systems, and I am always eager to learn and adapt to new challenges in the tech landscape.

Experience

Work history, roles, and key accomplishments

Senior Full Stack Developer

ClearSale

Aug 2021 - Jul 2025 (3 years 11 months)

Implemented and maintained the sales analysis management application, handling large data volumes and system integrations. Developed APIs, workers, and modern interfaces, while also mentoring junior developers.

.NET Core Angular Vue React SQL MongoDB Azure Azure DevOps Kubernetes

Senior Full Stack Developer

Air Liquid Brasil

Mar 2021 - Sep 2021 (6 months)

Developed new functionalities for systems, including APIs and interfaces, and maintained legacy systems. Contributed to a team focused on enhancing existing applications.

.NET Core SQL Server Azure DevOps

Senior Full Stack Developer

Nextter Digital

Feb 2017 - Apr 2021 (4 years 2 months)

Worked on high-availability systems for multi-level marketing with a large active user base. Developed the Tronar application using Xamarin and managed the backend for the Foxtter family security application with NodeJS and Google Firebase.

.NET NodeJS MongoDB Mongoose Firebase Xamarin SQL Angular React

Education

Degrees, certifications, and relevant coursework

Fullcycle

Pós-graduação, Golang avançado

2025 - 2025

Concluiu a pós-graduação em Golang avançado pela Fullcycle em 2025, aprofundando conhecimentos em programação com Golang. Este curso focou em tópicos avançados da linguagem.

Unicamp

Pós-graduação, Engenharia de Software

2013 - 2013

Concluiu a pós-graduação em Engenharia de Software pela Unicamp em 2013, aprofundando conhecimentos em metodologias e práticas de desenvolvimento de software. Este curso focou em aspectos teóricos e práticos da engenharia de software.

Mackenzie

Graduação, Sistemas de Informação

2005 - 2005

Concluiu a graduação em Sistemas de Informação pela Mackenzie em 2005, adquirindo uma base sólida em desenvolvimento de sistemas e gestão de tecnologia. Este curso abordou diversas áreas da tecnologia da informação.