Profile
Experienced Software Engineer and Tech Manager. Computer Science graduate, with 7+ years of experience in React and Node.
Interests
Web and Mobile apps
DevOps
REST APIs
Machine Learning
Cool projects
Skills
HTML, CSS, JS, TS7 years exp.
React, Node.js, C#7 years exp.
DevOps, Agile, PostgreSQL5 years exp.
Python, Machine Learning3 years exp.
C, Java2 years academical exp.
Redis, MongoDB1 year academical exp.
Languages
PortugueseMother tongue
GermanFluent
EnglishFluent
FrenchBasic
Education
PUC-RIO, 2018-2021
BA Computer Science
UDACITY - 2020-2021
Artificial Intelligence Nanodegree with Python and TensorFlow
UFRJ - 2017 - 2018
BA Computer Science, transferred to PUC-Rio via scholarship in 2018
Work Experience
PEPSICO - Feb 2024 - Present
Senior Frontend Engineer
Lead development of GSPT (Global Supply Planning Tool), managing potato supply & demand optimization for chip manufacturing worldwide. Architect scalable solutions for complex agricultural supply chain logistics.
INTELLTECH - Apr 2023 - Feb 2024
Tech Manager (QA) & Sr. Full Stack Developer
Led development teams & QA processes for mining industry clients. Built front-end libraries, CI/CD pipelines, and comprehensive testing frameworks (unit, integration, e2e). Managed centralized design system.
PORTAL SOLAR - Jan 2023 - Apr 2023
Full Stack Developer
Developed SEO-optimized institutional sites with Next.js & Ruby on Rails backend. Created & maintained Solaris design system for React/React Native apps.
TMOV - Mar 2022 - Jan 2023
Full Stack Developer (React + Node)
Built transportation logistics platform connecting cargo shippers with truckers. Tech stack: React, Node.js, .NET Core, SQL Server.
ICA PUC-RIO - Aug 2018 - Mar 2022
Full Stack Developer & Software Engineer Intern
Developed React interfaces & AI solutions for enterprise clients including Petrobras & Intel. Full-stack development using React, Node.js, C#, and Python across multiple high-impact projects.
Contact
Phone:
+55 (21) 97535-2974
Email:
davidjentjens@gmail.com
References
IVAN MATHIAS FILHO
PhD Professor and Coordinator, PUC-Rio
ivanmf@puc-rio.br
LEONARDO FORERO MENDOZA
PhD Professor, UERJ
mendoza@ele.puc-rio.br