Open to opportunities

Maria Sofia Jeronimo

@mariasofiajeronimo

Full Stack Developer building production systems with Node.js, React, and PostgreSQL, focused on user-centred interfaces.

Brazil

Message

What I'm looking for

I’m looking for a role where I can own end-to-end delivery—building reliable React/Node systems with strong databases—while creating functional, user-centred interfaces and shipping to real users.

I’m a Full Stack Developer and Master of Science student with 2+ years of hands-on experience building production systems with Node.js, React, and PostgreSQL. I’ve owned end-to-end delivery, from database design to production deployment.

As the sole developer of a waste management system deployed to real institutional users, I handled full stack delivery and implemented full CRUD operations for core waste-category data, plus automated report generation. I integrated a responsive React/Next front end with a PostgreSQL database via Prisma ORM to ensure functional cross-device usability.

My background in HCI evaluation shapes how I build: I aim for functional, user-centred interfaces. I also enjoy mentoring—during an internship, I led tutoring for ~30 students and improved code quality scores by 60% through structured technical feedback.

Experience

Work history, roles, and key accomplishments

Full Stack Developer

Federal University of Ceará

Jan 2024 - Jan 2025 (1 year)

Solely delivered a residue management system used by 3 institutions, covering database design through production deployment on Render. Built full CRUD for 5 waste categories and automated report generation, creating a responsive React/Next.js frontend integrated with PostgreSQL via Prisma.

React Next.js PostgreSQL Prisma Render CRUD Development Report Automation

Intern - Programming Tutor

Demócrito Rocha Foundation

Jan 2023 - Present (3 years 5 months)

Tutored ~30 students in programming fundamentals and achieved a 30% course completion rate. Reviewed and provided structured feedback on student projects, improving code-quality scores by 60%.

Structured Feedback Code Review Organization Time Management Scratch Based Learning