Back-end Engineer
Back-end Engineer
Available for hire
Years of
experience
4+ years
Experience
level
Mid-level
Available
for
Full-time, Part-time, Freelance
I am a Backend Engineer who thrives on complexity. My story is defined by solving critical problems across diverse industries—from ensuring scientific accuracy in HealthTech algorithms (DASS-21) to handling high-concurrency transaction volumes in Fintech.
What sets me apart is my ability to bridge the gap between 'Legacy' and 'Modern'. I have a proven track record of taking monolithic, hard-to-maintain PHP systems and transforming them into scalable, high-performance Node.js architectures. I specialize in the AWS Serverless ecosystem and Hexagonal Architecture, not just because they are trendy, but because they solve real scalability pains. I bring the mindset of an architect to the hands-on work of a developer.
Skills
Languages
Employment History
Backend Engineer at
Stefanini
Current
2024
-
Now
Executed the migration of specific internal projects to Hexagonal Architecture using TypeScript, enforcing code standards to decouple business logic and improve long-term maintainability.
Developed the Points Management Engine (Loyalty) and partner integrations, implementing custom authentication and validation mechanisms to ensure transaction security.
Develop and maintain solutions using AWS Serverless infrastructure, integrating Lambda, DynamoDB, SQS, and Redis with a focus on cost efficiency and resource optimization.
Backend Engineer mid-lelvel at
Mutant
2023
-
2024
Worked within the Aura squad (Vivo's AI), developing and integrating solutions for the employee support chatbot via WhatsApp.
Implemented and optimized complex conversational flows and FAQ sections using Node.js, focusing on response accuracy and internal support automation.
Executed backend service integrations with the WhatsApp platform using internal libraries, ensuring the stability and performance of the corporate communication channel.
Backend Engineer jr at
Prissi lab
2022
-
2022
Maintained and evolved the MVP for Prissi (Mental Health AI), developing new features using a lean stack with Node.js and Express.
Executed a critical fix on the DASS-21 (Depression, Anxiety, and Stress) metric calculation algorithm, ensuring the accuracy and reliability of the platform's pre-diagnoses.
Implemented backend gamification mechanics to increase user engagement and retention throughout the application lifecycle.
Backend Engineer jr at
in8 Holding
2022
-
2023
Developed automation scripts and crawlers for real-time airline ticket retrieval, implementing data normalization pipelines for end-user consumption.
Contributed to the codebase modernization strategy, migrating legacy scripts (Node.js + Axios) into a robust and scalable architecture using NestJS.
Optimized request/response workflows within the automation tools, focusing on increasing search performance and long-term system maintainability.
Backend engineer jr at
Urbit City
2021
-
2024
Led the strategic rewrite of the core API from legacy PHP to a high-performance architecture using Node.js, NestJS, GraphQL, and PostgreSQL with PrismaORM.
Developed data collection pipelines and automation routines (Web Scraping) by orchestrating Node.js microservices with Python (Selenium) scripts.
Established the technical standard for new APIs, ensuring the modernization of the stack and the long-term scalability of the company's ecosystem.
Education
Bachelor of Computer Science at
UNIFACS
Current
2021
-
Now
Technical Degree of Systems Development at
SENAI
2019
-
2020