Open to opportunities

Joseph Martinez

@josephmartinez

Message

I am a Senior Full Stack Engineer building scalable React, Spring Boot, GraphQL applications.

United States

Message

What I'm looking for

I seek a senior full-stack role building scalable React/Spring Boot/GraphQL apps in an Agile, collaborative team where I can lead, mentor, and improve system performance and security.

I am a Senior Full Stack Engineer with 5+ years designing and building scalable web applications using React, Spring Boot, GraphQL, and PostgreSQL.

I drive measurable improvements in performance and quality: I increased API efficiency by 60%, raised test coverage by 38%, reduced post-deployment defects and security vulnerabilities through TDD, Cypress testing, and a CodeQL pre-commit pipeline.

I lead Agile Scrum teams, mentor engineers on best practices, and streamline complex workflows such as scheduling, data management, and inventory operations. I look for opportunities to lead technical delivery, mentor teammates, and build secure, high-performance systems.

Experience

Work history, roles, and key accomplishments

Current

Full Stack Engineer

Current

AT&T

Apr 2025 - Present (6 months)

Led TDD adoption across Java Spring Boot and React codebases, increasing code coverage by 38% and reducing post-deployment defects by 42%. Mentored teams on GraphQL, NodeJS, and TypeScript to boost API efficiency 60% and reduced backend vulnerabilities 47% via a CodeQL pre-commit pipeline.

Test Driven Development Java Spring Boot React GraphQL NodeJS TypeScript CodeQl

Full Stack Engineer

Smile Brands Inc.

Aug 2022 - Apr 2025 (2 years 8 months)

Led end-to-end development of React/Next.js and GraphQL applications with PostgreSQL, improving system efficiency by 60% and reducing long-standing bugs by 75%. Implemented code standards, Cypress testing, and GitHub review processes, cutting refactor and bug-fix time by 50%.