Open to opportunities

Rafael Costa

@rafaelcosta

Message

I am a Full Stack Developer focused on Java and APIs.

Brazil

Message

What I'm looking for

I seek mid-level Full Stack or Back-End roles building APIs and integrations with Java/Spring Boot and Node.js, collaborating cross-functionally in a product-focused team that values continuous learning and measurable impact.

I am a Full Stack Developer with over four years of experience in technical support, API integrations, and web development. I transitioned from client-focused support roles into software engineering while keeping a customer-centric mindset.

I improved API integration resolution time by 30% through hands-on guidance using Postman and REST APIs, and I regularly assisted users in customizing e-commerce store layouts with JavaScript, CSS, and HTML to enhance usability.

I collaborate with cross-functional teams to deliver scalable solutions and have supported fraud prevention efforts using data visualization in Tableau. I leverage tools such as Spring Boot, Node.js, Postman, and GitHub to build and troubleshoot services.

I am continuing formal studies in Systems Analysis and Development (Fullstack, Apps & AI) and have completed backend-focused training and certifications, including a Back End Path course and an English B1 certificate.

I look for opportunities where I can build reliable APIs and integrations, contribute to product improvements, and grow technically within a collaborative, impact-driven team.

Experience

Work history, roles, and key accomplishments

Current

Support Analyst

Current

Nuvemshop

Apr 2020 - Present (5 years 5 months)

Provided technical support to partner developers, guiding API usage with Postman and REST APIs, improving integration resolution time by 30%. Assisted users in customizing e-commerce store layouts using JavaScript, CSS, and HTML, resulting in enhanced user satisfaction and usability.

Tableau Postman)Zendesk REST APIs JavaScript CSS HTML GitHub Git SQL Redash Know Your Customer (KYC)

Client Partner

Twitter / X

Sep 2019 - Apr 2020 (7 months)

Conducted quantitative and qualitative data analysis to provide actionable insights, improving advertising campaign efficiency with Excel and Forsight. Created market segmentation reports and applied SEO strategies to guide business decisions, increasing audience engagement.

Excel Salesforce Keynote SEO

Technical Support

Indra Company / iFood

Feb 2019 - Sep 2019 (7 months)

Delivered B2B technical support for application users via remote access tools such as TeamViewer, ensuring fast and efficient issue resolution. Developed performance dashboards in Excel and automated operational processes with ShellScript, reducing troubleshooting time and improving efficiency.

Shell Scripts Excel TeamViewer Windows

Education

Degrees, certifications, and relevant coursework

FIAP

Bachelor’s in Systems Analysis and Development, Fullstack, Apps & Artificial Intelligence

2024 - 2026

Prototyped a web solution to reduce environmental impact using Figma, Oracle SQL Developer, HTML, CSS, and JavaScript as part of the Global Solution Project.