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Full Stack Software Engineer with 5+ years of experience building and maintaining modern web applications using Java, Spring Boot, React, TypeScript, Ruby on Rails, and AWS. I design scalable REST APIs, cloud-native solutions, and responsive user interfaces with a strong focus on architecture, performance, and maintainability. I’ve contributed to enterprise platforms serving 14M+ users across 30+ countries, working end-to-end from UI/UX to backend services, cloud infrastructure, and production deployments in agile environments. I enjoy refactoring legacy systems, improving engineering workflows with internal tools, and delivering high-quality software with cross-functional teams.…Full Stack Software Engineer with 5+ years of experience building and maintaining modern web applications using Java, Spring Boot, React, TypeScript, Ruby on Rails, and AWS. I design scalable REST APIs, cloud-native solutions, and responsive user interfaces with a strong focus on architecture, performance, and maintainability. I’ve contributed to enterprise platforms serving 14M+ users across 30+ countries, working end-to-end from UI/UX to backend services, cloud infrastructure, and production deployments in agile environments. I enjoy refactoring legacy systems, improving engineering workflows with internal tools, and delivering high-quality software with cross-functional teams.

Gabriel Dienstmann Sieczkowski

Full Stack Developer, Web Developer, Software Engineer, +2

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Full Stack Software Engineer with 5+ years of experience building and maintaining modern web applications using Java, Spring Boot, React, TypeScript, Ruby on Rails, and AWS. I design scalable REST APIs, cloud-native solutions, and responsive user interfaces with a strong focus on architecture, performance, and maintainability. I’ve contributed to enterprise platforms serving 14M+ users across 30+ countries, working end-to-end from UI/UX to backend services, cloud infrastructure, and production deployments in agile environments. I enjoy refactoring legacy systems, improving engineering workflows with internal tools, and delivering high-quality software with cross-functional teams.…Full Stack Software Engineer with 5+ years of experience building and maintaining modern web applications using Java, Spring Boot, React, TypeScript, Ruby on Rails, and AWS. I design scalable REST APIs, cloud-native solutions, and responsive user interfaces with a strong focus on architecture, performance, and maintainability. I’ve contributed to enterprise platforms serving 14M+ users across 30+ countries, working end-to-end from UI/UX to backend services, cloud infrastructure, and production deployments in agile environments. I enjoy refactoring legacy systems, improving engineering workflows with internal tools, and delivering high-quality software with cross-functional teams.

Available to hire

Full Stack Software Engineer with 5+ years of experience building and maintaining modern web applications using Java, Spring Boot, React, TypeScript, Ruby on Rails, and AWS. I design scalable REST APIs, cloud-native solutions, and responsive user interfaces with a strong focus on architecture, performance, and maintainability.

I’ve contributed to enterprise platforms serving 14M+ users across 30+ countries, working end-to-end from UI/UX to backend services, cloud infrastructure, and production deployments in agile environments. I enjoy refactoring legacy systems, improving engineering workflows with internal tools, and delivering high-quality software with cross-functional teams.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

Portuguese

Fluent

English

Advanced

Work Experience

Full Stack Software Engineer at HP

March 1, 2025 - Present

Develop and maintain enterprise web applications using React and Ruby on Rails for a platform serving 14 million+ users across 30+ countries. Build and maintain Micro Frontend (MFE) applications, contributing to a modular and scalable frontend architecture. Led refactoring of legacy micro frontends to improve maintainability, scalability, and code organization. Implement new product initiatives requiring architectural changes across core business logic. Develop internal tools used by Product Owners to manage and track Jira tickets, improving engineering workflows and operational efficiency. Collaborate in Agile teams through planning, code reviews, and production releases.

Full Stack Software Engineer at LIS (Software Innovation Laboratory) - HP / PUCRS

September 1, 2024 - March 31, 2025

Develop enterprise full-stack applications using React, Java Spring Boot, Python, and AWS. Build a customizable dashboard for managing and analyzing thousands of defect and support tickets. Implement scalable backend services across different system modules using Spring Boot and Python. Design REST APIs and responsive frontend interfaces integrated with cloud-native services. Build serverless solutions using AWS Lambda, API Gateway, and DynamoDB, with authentication via Amazon Cognito. Develop backend services using PostgreSQL for Java Spring Boot applications, covering the full lifecycle from requirements analysis to deployment.

Web Developer / UI Designer at MS Design Agency

April 1, 2024 - September 30, 2024

Designed and developed institutional websites, landing pages, and web applications for large companies. Created responsive UIs using React and designed end-to-end user experiences in Figma. Managed the full development lifecycle as the company’s sole web developer, from design to deployment. Developed and customized WordPress solutions according to client requirements. Performed production deployments on Linux KVM environments using containerized applications. Worked directly with clients to turn business requirements into high-quality digital products.

Freelance Web Developer / UI Designer

May 1, 2020 - Present

Designed and developed web platforms for civil engineering companies using React and Java Spring Boot. Delivered end-to-end digital solutions including institutional websites, landing pages, and e-commerce platforms for Brazilian clients. Implemented marketing integrations such as Google Analytics and lead capture solutions to support marketing teams. Designed modern UI prototypes in Figma and converted business needs into production-ready applications. Managed projects across requirements gathering, UI/UX design, development, deployment, and ongoing maintenance.