Open to opportunities

Rafael Coutinho

@rafaelcoutinho

Full-stack developer intern at Masterboi building web applications and Python automations that replace manual processes.

Brazil

Message

What I'm looking for

I’m open to full-stack development opportunities where I can build applications and automations end to end.

At Masterboi, I develop web applications and internal automations, from gathering requirements with business teams to delivery and maintenance in production. I work across the front end and back end with React, TypeScript, Hono, and Bun, and build Python automations integrated with Microsoft Graph API.

At CESAR School, I’m a teaching assistant for Software Infrastructure, supporting students with Linux exercises and topics like processes and memory. I’ve also supported courses in imperative and functional programming and programming fundamentals, teaching programming logic and C.

I enjoy building end to end, from C games and Arduino projects to Java and Spring APIs with AI integrated through tool calling. I’m interested in architecture that keeps the model outside the core domain, rather than adding AI for its own sake.

Experience

Work history, roles, and key accomplishments

Current

Teaching Assistant, Software Infrastructure

Current

CESAR School

Aug 2026 - Present (3 months)

Teaching assistant for the Software Infrastructure course, focused on operating systems, Linux and infrastructure fundamentals.

• I support students during office hours and help them work through hands-on exercises in a Linux environment.
• I reinforce the hardest topics of the course: processes, memory and the command line.
• I work alongside the professor tracking student submissions.

Current

Software Development Intern

Current

Masterboi

Dec 2025 - Present (11 months)

I develop web applications and internal automations end to end, from gathering requirements with business teams to delivering and maintaining them in production.

• Front-end and back-end with React, TypeScript, Hono and Bun.
• Python automations (RPA) integrated with the Microsoft Graph API, replacing manual processes with reliable routines.
• Bridge between business and technology: I understand

Teaching Assistant, Imperative and Functional Programming

CESAR School

Mar 2026 - Sep 2026 (6 months)

Teaching assistant for the Imperative and Functional Programming course, focused on programming logic and the C language.

• I support students during office hours and review their code one on one.
• I reinforce the topics with the highest failure rates: pointers, dynamic memory allocation and structs.
• I help the professor with grading and feedback on submissions.

Class Representative

CESAR School

Feb 2026 - Jul 2026 (5 months)

Class representative for the Computer Science undergraduate program during the 2026.1 term.

• Acted as the bridge between students and the program coordination, raising the class's issues and bringing answers back.
• Organized class communication and helped move collective academic matters forward.

Teaching Assistant, Programming Fundamentals

CESAR School

Sep 2025 - Dec 2025 (3 months)

Teaching assistant for the Programming Fundamentals course, supporting first-semester students.

• I teach programming logic with Python to students writing their first lines of code.
• I support them during office hours and help them work through exercises.
• My first teaching experience, which led to the teaching assistantships that followed.