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Daniel MartinezDM
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Daniel Martinez

@danieluser82

Backend Developer at Igrowker who implemented BlackBox fleet-management APIs with Node.js, TypeScript, and PostgreSQL.

Brazil
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At Igrowker, I developed backend features for BlackBox, a fleet-management platform, including registration, JWT authentication, and driver and vehicle CRUD operations. I used Node.js, Express, TypeScript, Zod, and Prisma, and documented the REST API with Swagger.

On a project called YelpCamp, I built a full-stack app with React and TypeScript, an Express and MongoDB API, automated tests, and CI on GitHub Actions. In my current freelance work, I developed a corporate website for Norpe Ltda using React, Vite, and Tailwind.

At 4Geeks Academy, I resolved over 1,000 student coding issues through guided debugging and handled technical onboarding for more than 500 students. I use Linux daily and work with Git Flow and code reviews.

Experience

Work history, roles, and key accomplishments

FR
Current

Full Stack Developer

Freelance

Apr 2022 - Present (4 years 7 months)

Corporate website for the Uruguayan company Norpe Ltda (developed using React, Vite, and Tailwind; forms managed via Formik/Yup and Formspree). Direct communication with clients for requirements gathering and expectation management. Diagnosing and resolving hardware and software issues by identifying their root causes.

IG

Back End Developer

Igrowker

Feb 2026 - Apr 2026 (2 months)

Backend development for BlackBox, a fleet management platform, as part of a ~10-person team (within a 2-month training program). Implemented user and company registration, JWT authentication with middleware, and centralized error handling (Node.js, Express, TypeScript). Developed CRUD operations for drivers and vehicles—including assignment history—using Zod for validation and Prisma for PostgreSQ

4Geeks Academy logoGA

Prework and Finance Advisor

4Geeks Academy

Jan 2024 - Feb 2025 (1 year 1 month)

Resolved over 1,000 student coding issues through guided debugging and troubleshooting. Managed technical onboarding for more than 500 students, including interviews, environment setup (Git, IDE, dependencies), and platform integration. Provided instruction and one-on-one guidance to students during critical phases of the bootcamp, including weekly code reviews. As of September 2024, also responsi

DS

Full Stack Developer

Devsafio - Sin Juniors No Hay Seniors

Apr 2023 - Sep 2023 (5 months)

Developing an improved version of Devsafio's website, utilizing agile methodologies, strong communication, problem-solving.

SE

Salesman

Self-employed

Feb 2017 - Dec 2019 (2 years 10 months)

Venda de plantas e flores no negócio familiar, de forma esporádica: atendimento presencial aos clientes e recebimento de pagamentos.

SE

Salesman

Self-employed

Feb 2017 - Dec 2019 (2 years 10 months)

Venda de plantas e flores no negócio familiar, de forma esporádica: atendimento presencial aos clientes e recebimento de pagamentos.

Education

Degrees, certifications, and relevant coursework

UD

Udemy

The Web Developer Bootcamp

Jan 2026

UD

Udemy

Electrónica Básica

Nov 2025

SP

SPEAKHABLA

Business English Level Assessment

Jul 2023

ML

Mercado Libre

Checkout Pro

Feb 2023

UT

UTEC - Universidad Tecnológica

Bachelor's degree Information Technology, Computer Science

2018 - 2022

UTEC - Universidad Tecnológica logoUT

UTEC - Universidad Tecnológica

Bachelor's degree Information Technology, Computer Science

2018 - 2022

4Geeks Academy logoGA

4Geeks Academy

Fullstack Developer, Computer Programming

2022 - 2022

UTU - Dirección General de Educación Técnico - Profesional logoUP

UTU - Dirección General de Educación Técnico - Profesional

Bachelor's degree, Information Technology

2014 - 2017

HA

HubSpot Academy

Service Hub Software Certificate

UD

Udemy

The Web Developer Bootcamp

Jan 2026

UD

Udemy

Electrónica Básica

Nov 2025

ML

Mercado Libre

Checkout Pro

Feb 2023

SP

SPEAKHABLA

Business English Level Assessment

Jul 2023

UTU - Dirección General de Educación Técnico - Profesional logoUP

UTU - Dirección General de Educación Técnico - Profesional

Bachelor's degree, Information Technology

2014 - 2017

HA

HubSpot Academy

Service Hub Software Certificate

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