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Candidate Resume
David O
Senior Full Stack Engineer | Brazil
Brazil
Summary

Full Stack Engineer with 9+ years of experience developing scalable web and mobile applications, with strong expertise in Python, Django, Django REST Framework, and React Native. Experienced in designing high-performance backend APIs, building cross-platform mobile applications, and integrating systems in cloud environments such as AWS and Azure. Solid background in database design with PostgreSQL and MySQL, API-driven architectures, and performance optimization.

Technical Skills
Languages
Python, JavaScript, TypeScript, SQL
Backend
Django, Django REST Framework, Node.js, Express.js, REST APIs, GraphQL
Frontend
React, React Native (iOS & Android), Next.js, Angular, HTML5, CSS3, Tailwind CSS
Databases
PostgreSQL, MySQL, MongoDB, Redis
Cloud & DevOps
AWS (EC2, S3, Lambda), Azure, Docker, CI/CD Pipelines, GitHub Actions
Testing
PyTest, Jest, Cypress, Unit Testing, API Testing
Work Experience
Full Stack Engineer
Zco Corporation
Remote (USA) | Jun 2022 - Present
Engineered scalable backend services using Django and DRF for high-availability applications. Built React Native mobile features for iOS and Android. Designed RESTful APIs for real-time transactional workflows. Developed optimized PostgreSQL schemas and integrated third-party services through REST APIs and webhooks.
Full Stack Developer / Analytics Engineer
Agência M2BR
Rio de Janeiro, Brazil | Apr 2019 - Apr 2022
Developed backend systems using Python and Django for high-volume analytics platforms. Built API layers with DRF for frontend dashboards. Designed and optimized PostgreSQL schemas for data-intensive operations. Automated data workflows and background processes.
Full Stack Developer
Code Farm
Brazil | Dec 2017 - Jun 2019
Built full-stack web applications for e-commerce platforms using Python and JavaScript. Developed REST APIs for order processing and payment integration. Optimized backend performance through query tuning. Built monitoring and logging features.
Education
Bachelor's Degree in Mathematics and Computer Science
Federal University of Rio Grande do Sul
2013 - 2017