theaveragedev

Mobile Developer

I’ve spent the last few years working across React Native, React, Next.js, Python, Django, FastAPI, Java and SpringBoot. 

Building healthcare, fintech, and B2B apps from the ground up, a lot of that work involved partnering closely with product, design, backend, and QA to ship features that were both stable and intuitive. I enjoy that process—turning a Figma file into something fast, accessible, and reliable. It’s where the craft lives.

Along the way, I’ve also gotten pretty comfortable navigating complex systems. At Loka, for example, I worked with HIPAA-compliant architectures, integrated Node.js and FastAPI services, and helped streamline communication between mobile and web layers. Testing is another area I care about, and I’ve used Jest, RTL, Cypress, and Vitest to keep codebases predictable and easy to evolve.

What keeps me excited, though, is the chance to join a team that values good engineering and gives space for people to grow together. I like solving real problems with people who care about the details—both in the product and in the way we collaborate. That’s the kind of environment I’m looking for, and it’s the one I see reflected in your work.

If my background matches what you’re aiming to build, I’d be glad to talk and explore things further.

Thanks for reading, and hope we can connect soon.


Experience: 7 years

Yearly salary: $66,000

Hourly rate: $40

Nationality: 🇧🇷 Brazil

Residency: 🇧🇷 Brazil


Experience

Mobile Developer
Loka
2023 - 2025
Facilitated cross-functional collaboration between product designers, backend engineers, and QA teams to build React Native and Next.js apps for healthcare and construction management, delivering features from scratch based on Figma designs and wireframes, accelerating time-to-market by 30%. Led integration of Node.js and FastAPI microservices into scalable frontend applications, collaborating with backend engineers to streamline API workflows and improve system reliability by 25%. Delivered HIPAA-compliant features by coordinating with security specialists, backend engineers, and QA teams, enhancing data protection, performance, and accessibility across mobile and web platforms. Developed custom reusable React hooks and components in collaboration with frontend engineers, reducing technical debt and increasing development efficiency by 40%. Implemented comprehensive automated test suites using RTL, Jest, Vitest, and Cypress, working closely with QA teams to improve test coverage by 80% and reduce production bugs. Collaborated closely with product designers, backend engineers, and DevOps teams to deliver end-to-end solutions, resolving 30+ critical issues and improving overall application stability by 20%.
Frontend Engineer
Miratech
2022 - 2023
Facilitated cross-functional collaboration between frontend engineers, product designers, and QA teams to enhance fintech web and mobile apps using React, AngularJS, and TypeScript, improving feature delivery speed by 25%. Collaborated closely with design teams using Figma to deliver high-quality, pixel-perfect interfaces, increasing user satisfaction and reducing UI-related bugs by 30%. Led frontend performance optimization efforts, reducing load times by ~20% and ensuring accessibility and usability across web and mobile platforms. Participated in code reviews and architecture discussions with frontend and backend engineers, shaping best practices and improving code maintainability by 35%.
Frontend Developer
AMcom TI
2022 - 2023
Facilitated cross-functional collaboration between frontend and backend engineers, QA teams, and product managers to build and launch knowledge-sharing and e-commerce platforms using React, TypeScript, Gatsby, NestJS, and GraphQL, increasing platform engagement by 30%. Led integration of third-party APIs including Twilio, Stripe, and payment gateways into scalable web applications, collaborating with backend engineers to streamline payment and messaging workflows, reducing transaction errors by 25%. Developed unit and integration tests with Jest, Cypress, and RTL in coordination with QA teams, improving application reliability and reducing production bugs by 40%. Collaborated with cross-functional teams in an Agile environment to deliver high-impact features, enhancing user experience and accelerating sprint delivery by 20%.
Full-stack Developer
eNe Soluções
2019 - 2022
Facilitated cross-functional collaboration between frontend and backend engineers, QA teams, and product managers to build a knowledge-sharing platform using React Native and NestJS, improving user engagement by 35%. Collaborated with UX designers to design simplified onboarding flows for non-technical users, implementing OTP login and reducing account setup friction by 40%. Led development of e-commerce features with React and GraphQL, focusing on developer experience and scalable architecture, increasing feature deployment efficiency by 25%. Integrated third-party APIs for payments and messaging in coordination with backend engineers and QA teams, ensuring high performance, reliability, and minimal downtime across web and mobile platforms.
Junior Developer
WCORE Technology
2018 - 2019
Worked closely with cross-functional teams to gain early experience in debugging, release management, and team collaboration, contributing to smoother project delivery and reduced production errors. Facilitated backend development with Python/Django and PostgreSQL/MySQL, integrating database solutions that enhanced data reliability and application scalability. Collaborated with frontend engineers and content teams to develop and maintain institutional websites using JavaScript and WordPress, improving site performance and reducing maintenance issues by 20%.

Skills

backend
java
postgres
python
front-end
english
portuguese