David M. Jentjens
David M. Jentjens
Senior Frontend Lead
Profile

Senior Frontend Lead with 7+ years building enterprise-scale web applications. Currently leading frontend development of GSPT (Global Seed Planning Tool) at PepsiCo — a React/TypeScript application used across multiple global markets for potato seed supply chain optimization.

My work spans scalable UI architecture, design system implementation, REST API integration, and cross-functional collaboration with distributed teams across the US and India. I also have solid backend experience with Node.js, and I'm comfortable owning full-stack concerns when the project calls for it.

Previously led development teams at Intelltech building software for major mining industry clients including Vale, Usiminas, and Anglo American. Scope included CI/CD pipeline architecture and a GitLab-to-GitHub Enterprise Cloud migration across ~60 repositories.

CS degree from PUC-Rio. Certifications in Machine Learning and UX from Udacity. Fluent in German, English, and Portuguese.

Technical Skills
Frontend: React, TypeScript, Next.js, HTML, CSS, JavaScript
Backend: Node.js, C#, Python, REST APIs
Databases: PostgreSQL, Redis, MongoDB
DevOps: CI/CD, Git, GitHub Actions, GitLab CI
Other: Agile, Design Systems, Machine Learning
Languages
PortugueseNative
GermanFluent
EnglishFluent
FrenchBasic
Work Experience
PepsiCo logo
Frontend Lead
PepsiCo · Full-time
Oct 2024 - Present · 1 yr 8 mos
Plano, TX · Remote
Lead frontend development of GSPT (Global Seed Planning Tool), a React/TypeScript application used for potato seed supply chain optimization across global markets. Architect scalable UI components using PepsiCo's Peacock design system, integrate REST APIs, and coordinate with distributed backend and design teams across the US and India. Deliver features end-to-end in Agile sprints with full QA ownership.
Intelltech logo
Senior Software Engineer
Intelltech · Full-time
Mar 2023 - Oct 2024 · 1 yr 7 mos
Foz do Iguaçu, Paraná, Brazil · Remote
Software development and technical leadership for mining industry clients including Vale, Usiminas, and Anglo American. Scope included GitLab-to-GitHub Enterprise Cloud migration (~60 repositories), CI/CD pipeline architecture, design system maintenance, DevOps documentation, and delivering strategic technical reports to leadership.
Portal Solar logo
Full Stack Developer
Portal Solar · Full-time
Jan 2023 - Apr 2023 · 4 mos
São Paulo, Brazil · Remote
Developed SEO-optimized institutional sites with Next.js & Ruby on Rails backend. Created & maintained Solaris design system for React/React Native apps.
Tmov logo
Full Stack Developer (React + Node)
Tmov · Full-time
Mar 2022 - Jan 2023 · 11 mos
Londrina, Paraná, Brazil · Remote
Built transportation logistics platform connecting cargo shippers with truckers. Tech stack: React, Node.js, .NET Core, SQL Server.
ICA PUC-Rio logo
Full Stack Developer
ICA PUC-Rio · Full-time
Aug 2018 - Mar 2022 · 3 yrs 8 mos
Rio de Janeiro, Brazil
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.
Education
PUC-RIO, 2018–2021
Bachelor of Computer Science
Verified Digital Diploma ↗
UFRJ, 2017–2018
BA Computer Science (transferred to PUC-Rio via scholarship)
Certifications
Anthropic logo
Claude Certified Architect – Foundations (CCA-F)
Anthropic, 2026
View Certificate
Udacity logo
User Experience Nanodegree
Udacity, 2022
View Certificate
Udacity logo
Machine Learning Engineer Nanodegree
Udacity, 2021
View Certificate
Contact
Email:
davidjentjens@gmail.com