I've been working as a backend developer for 5 years and strongly believe in the transformative potential of technology. Early in my career, I gained experience at a real estate startup, contributing to both backend and frontend services. Later, at Solidaridad, I focused on developing APIs with Python and Django. Almost single-handedly, I implemented the entire testing infrastructure and developed security measures that significantly contributed to the app's user growth and improved productivity.Upon joining Mobiplus in 2021, I took on the challenge of starting the development of a new product from scratch. I played a crucial role in building four applications, which grew to have over 200,000 monthly accesses within a year. I've dedicated my efforts to constructing scalable and easily maintainable applications using Domain-Driven Design (DDD) and Test-Driven Development (TDD) architecture patterns.
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Backend DeveloperMobiplus Feb 2022 - Feb 2024São Paulo, Brazil- Took a pivotal role at Mobiplus in developing and enhancing the IclinicRx, which experienced significant growth, reaching 376K monthly visitors during my tenure.- Implement adapters and API using Golang for seamless communication between physicians and the base team.- Utilize Behavior-Driven Development (BDD) patterns to ensure scalability and maintain conceptual integrity.- Migrate data from the older, unnormalized database (IclinicRx) to a new one using a CMS (Directus).- Contribute to the creation of an API search engine using Amazon CloudSearch.- Ensure decoupling of the database and service for flexibility in storage and business logic changes. -
Backend DeveloperSolidaridad Network Apr 2020 - Jan 2022São Paulo- Develop and maintain a robust web application, leveraging Django and PostgreSQL databases for structured data, as well as AWS S3 for NoSQL storage. - Provide support for server infrastructure and AWS Cloud networks, including EC2 instances, VPCs, Elastic Beanstalk, and Router configuration. - Implement ETL routines using Pandas and SQL scripts into Google BigQuery databases. - Ensure high-quality software by creating and executing comprehensive test plans, while also automating failure monitoring reports to proactively identify and address issues. -
Python Developer - JuniorConfitec Tecnology Sep 2019 - Apr 2020São Paulo- Build APIs using Python and Flask, ensuring seamless communication between various web systems. - Support and integrate these systems with AWS services such as DynamoDB for NoSQL storage and S3 for file storage. - Develop user-friendly back-office features using React, enhancing the overall functionality and user experience of the application. -
Developer InternshipApe11 Jan 2019 - Sep 2019São Paulo- Develop backend solutions for frontend applications using Python, ensuring efficient and reliable functionality. - Implement ETL routines by leveraging web scrapers and crawlers to extract and transform data for seamless integration into the system. - Develop back office with AWS services using APIs built in Node.js and GraphQL, facilitating seamless communication and data exchange between systems.
Willian Pacheco Education Details
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Computer Science -
Environmental Management -
Sistema De Informação
Frequently Asked Questions about Willian Pacheco
What is Willian Pacheco's role at the current company?
Willian Pacheco's current role is Backend Developer | Python | Golang | APIs | DDD | AWS | SQL/NoSQL.
What schools did Willian Pacheco attend?
Willian Pacheco attended Faculdade De Tecnologia De São Paulo - Fatec-Sp, University Of Sao Paulo - Usp, Universidade De São Paulo.
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