Summary
Willian S is a versatile and results-oriented Full Stack Developer with strong expertise in building scalable, high-performance applications using technologies like Node.js, React, TypeScript, Docker, and AWS. With a background in backend, frontend, DevOps, and automation, he brings a well-rounded approach to modern software development. At DevelopsToday and Grupo ICTS, Willian delivered impactful solutions such as implementing strategic caching with Redis, optimizing SQL queries, integrating AI platforms, and improving CI/CD workflows—boosting system performance by over 30% and reducing load times by 20%. He has also developed and deployed microservices-based architectures with REST and GraphQL APIs, async queues (RabbitMQ), and extensive testing strategies using Jest and Cypress. Passionate about clean code, scalability, and developer efficiency, Willian is a proactive problem-solver with strong communication skills and a commitment to continuous learning. Fluent in Portuguese and proficient in English, he thrives in fast-paced remote environments and is driven by a passion for engineering excellence.
Meet Willian S.
Assessment Scores. Click to see explore details:
Perfect score on React Counter Component, Difficulty Easy
Average score on Movie Management Component, Difficulty Medium
Great score on ReactJS Application Performance copy, Difficulty Medium
Average score on ReactJS's Virtual DOM Efficiency, Difficulty Medium
Average score on LRU Cache Algorithm, Difficulty Hard
Average communication and problem solving skills
Experience
DevelopsToday LTD
Full Stack Developer (Full-Time)
Dec 2024-Feb 2025
Implemented strategic caching with Redis and used CDN to reduce loading times.
Refactored and optimized SQL queries for improved system performance.
Configured CI/CD pipelines (Bitbucket) and containerization with Docker.
Developed web scraping scripts (Cheerio) and workflow automation with (Puppeteer).
Integrated Sentry for real-time error monitoring.
Integrated AI agents and platforms such as ChatGPT, Gemini, RapidAPI, and Huggingface.
Performed prompt engineering by creating and optimizing prompts for better interaction with AI tools.
Technologies: Node.js, React.js, Redis, Bitbucket, Docker, Cheerio, Puppeteer, ChatGPT, Gemini, RapidAPI, Huggingface, CI/CD
Grupo ICTS
Full Stack Developer (Full-Time)
May 2022-Nov 2024
Designed and implemented full-stack applications (React.js, Next.js, Node.js, Python) focusing on microservices.
Developed REST/GraphQL APIs with JWT authentication and async queues (RabbitMQ).
Assisted in deploying projects to (AWS) and VM's.
Implemented unit tests (Jest) and E2E testing (Cypress).
Designed communication protocols between services, including embedded systems.
Technologies: React.js, Next.js, Node.js, Python, RabbitMQ, AWS, Jest, Cypress, Docker, CI/CD
Kenzie Academy
Peer Coach (Part-Time)
Aug 2021-Jan 2022
Provided guidance on (HTML, CSS, JavaScript, and React) projects.
Helped students overcome personal barriers to learning.
Offered constructive feedback to improve students’ performance.
Established trust-based relationships to foster open communication.
Technologies: JavaScript , HTML , CSS
Education
Full Stack Web Development
2021-2022
Kenzie Academy - Curitiba, Paraná
High School
2016-2019
Colégio Estadual Dr. Rômulo Almeida - Santo Antônio de Jesus, Bahia
