Open to opportunities

Gabriel User

@gabrieluser6

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Tech Lead and Senior Software Engineer specializing in Java, Spring, and scalable microservices.

Brazil

Message

What I'm looking for

I seek a technical leadership role where I can drive architecture, mentor teams, work on scalable microservices, and leverage DevOps and cloud practices.

I am a Full Stack Developer and Tech Lead with deep experience designing and implementing RESTful APIs using Java and the Spring ecosystem, focused on efficiency, security, and scalability.

I have strong frontend skills in Angular and ReactJS and embrace DevOps practices with Docker and AWS to deliver reliable cloud-native solutions.

As a team leader I drive architectural direction, mentor engineers, manage sprint planning, and reduce cycle times—achieving measurable improvements in development and review throughput.

Previously I led migrations to Keycloak, implemented MFA, worked extensively with event-driven architectures (Kafka, RabbitMQ), and contributed across the full stack to deliver robust, maintainable products.

Experience

Work history, roles, and key accomplishments

Current

Tech Lead

Current

Wiley

Oct 2024 - Present (1 year)

Lead a backend team building RESTful microservices and event-driven systems, drove architectural direction and refactoring, and improved delivery by reducing development time 50% and code review time 80%.

Java Spring Boot Microservices Event Driven Architecture Kafka Docker AWS Team Leadership

Senior Software Engineer

Wiley

Sep 2024 - Oct 2024 (1 month)

Developed and maintained microservice functionalities and REST APIs, performed code reviews, onboarded new developers, and introduced AI tools to optimize internal processes.

Java Spring Boot REST APIs Microservices Code Review AI Tools CI CD Agile

Software Engineer

Wiley

Dec 2023 - Sep 2024 (9 months)

Maintained and developed features in a microservice ecosystem, ensured code quality through reviews, and collaborated with international teams on technical solutions and onboarding.

Java Spring Boot Microservices REST APIs Code Review Agile Troubleshooting Onboarding

Backend Developer

DB1 Global Software

Jun 2022 - Dec 2023 (1 year 6 months)

Led migration of a legacy security system to Keycloak, integrated authentication across APIs with custom JWT and user federation, implemented MFA via email, and ensured code quality through reviews.

Keycloak Java Spring Boot JWT MFA OAUTH2 REST APIs Code Review

Junior Backend Developer

X-Brain

Oct 2021 - Jun 2022 (8 months)

Developed new features and unit tests using Java and Spring Boot, participated in code reviews and contributed to backend feature implementation.

Java Spring Boot Unit Testing REST APIs Git Code Review Debugging

Software Development Intern

Tata Consultancy Services

May 2021 - Oct 2021 (5 months)

Implemented features and unit tests with Java and Spring Boot and participated in peer code reviews during internship engagements.

Java Spring Boot Unit Testing REST APIs Code Review Agile

Education

Degrees, certifications, and relevant coursework

Universidade Positivo

Analysis and Systems Development

2021 - 2022

Completed an Analysis and Systems Development program focused on software development fundamentals, practical Java and Spring Boot skills, and application lifecycle practices.