Kleyton S.

Full-stack Product Engineer

Senior Full Stack Developer / Team Leader
7/1/2022 - Present

Developed proficiency in designing and implementing scalable software architecture. Supervised multiple projects focused on cloud-native applications and microservices using Docker and Kubernetes. Demonstrated expertise in backend technologies, including Java, Spring Boot, and Node.js. Mastered frontend frameworks such as React and Angular, ensuring responsive and dynamic user interfaces. Utilized relational and NoSQL databases, specifically PostgreSQL, MySQL, and MongoDB, to meet diverse data storage needs. Spearheaded DevOps practices, integrating CI/CD pipelines with Jenkins and GitLab CI, and ensured seamless deployment automation. Facilitated cross-functional collaboration through Agile methodologies and Scrum frameworks, promoting efficient project management. Led code reviews and maintained high code quality using tools like SonarQube and static code analyzers. Cultivated skills in performance optimization and system monitoring with Prometheus and Grafana.

Full Stack Developer/Team Leader
7/1/2021 - 7/1/2022

Served as a Team Leader and FullStack Developer, honing advanced skills in JavaScript, TypeScript, and Python. Leveraged frameworks such as React, Angular, and Django to architect and implement scalable web applications. Utilized Node.js and Express for back-end development, while managing databases with PostgreSQL and MongoDB. Conducted code reviews and provided mentorship to junior developers, fostering a collaborative and productive team environment. Spearheaded agile methodologies, including Scrum and Kanban, to streamline project workflows and enhance productivity. Ensured code quality and consistency using CI/CD pipelines and version control systems such as Git. Successfully led project milestones and deliverables by coordinating cross-functional teams and aligning technical strategies with business goals.

FullStack Developer
5/1/2021 - 6/1/2021

Demonstrated extensive expertise in Java, Node.js, and React.js while functioning as a Fullstack Developer. Leveraged AWS architecture for scalable and reliable cloud solutions. Engineered back-end systems with Java, bolstering robust data processing and management capabilities. Utilized Node.js for server-side programming, ensuring efficient handling of I/O operations. Developed dynamic and responsive user interfaces with React.js, enhancing user experience and engagement. Implemented and maintained microservices architecture on AWS, incorporating services such as EC2, S3, Lambda, and RDS. Enhanced collaborative development through version control practices using Git. Applied continuous integration/continuous deployment (CI/CD) pipelines to streamline deployment processes and ensure rapid, consistent delivery of updates. Established expertise in RESTful API development and integration, delivering seamless communication between client and server. Conducted comprehensive testing methodologies, including unit tests and integration tests, ensuring high reliability and performance of deliverables.

FullStack Developer
9/1/2020 - 5/1/2021

Mastered programming and software architecture with a focus on GraphQL implementation and API integration. Developed robust applications using Python and TypeScript, leveraging frameworks such as NestJS and React.js for full-stack development. Demonstrated expertise in mobile application development, enhancing both front-end and back-end systems. Maintained and optimized relational databases and NoSQL databases, showcasing a deep understanding of DBMS. Excelled in unit testing to ensure software reliability, and engaged in Agile methodologies for project management and iterative development. Utilized Git for version control and collaborated effectively within development teams. Deployed applications and managed infrastructure through Amazon Web Services (AWS), demonstrating comprehensive cloud computing proficiency.

Backend Developer
7/1/2019 - 9/1/2020

Developed extensive expertise in software architecture, focusing on both relational and NoSQL databases. Applied DBMS principles and ensured efficient database management across various projects. Utilized agile methodologies to streamline development processes and improve project outcomes. Specialized in programming with a strong emphasis on back-end development, leveraging TypeScript and JavaScript to enhance application functionality. Demonstrated proficiency in designing and implementing robust APIs, facilitating seamless data exchange and system integration. Managed code collaboratively using Git, maintaining high standards of version control and repository management. Leveraged Amazon Web Services to ensure scalable and reliable cloud infrastructure, optimizing performance and resource utilization.

Software Development
6/1/2018 - 2/1/2019

Developed expertise in software development and solution architecture. Mastered programming languages such as Java, Python, and JavaScript. Designed and implemented robust backend systems using frameworks like Spring Boot, Django, and Node.js. Utilized front-end technologies including Angular, React, and Vue.js to create dynamic web applications. Delivered scalable and efficient database solutions with MySQL, PostgreSQL, and MongoDB. Gained proficiency in cloud platforms AWS, Azure, and Google Cloud, enabling deployment and management of applications in cloud environments. Applied best practices in continuous integration and continuous deployment (CI/CD) using tools such as Jenkins, Travis CI, and CircleCI. Maintained high code quality and collaboration through Git and GitHub. Demonstrated keen analytical skills by conducting thorough system analyses to identify and resolve performance bottlenecks. Ensured comprehensive documentation and streamlined workflows by using JIRA and Confluence.

Operation Supervision
11/1/2011 - 6/1/2017

Developed advanced skills in Node.js, focusing on process automation to optimize workflows. Utilized Express.js to build efficient and scalable APIs. Gained proficiency in JavaScript, both in frontend and backend contexts, creating seamless data interchange systems. Employed MongoDB for high-performance data storage and retrieval, ensuring efficient database management. Leveraged Docker for containerization, streamlining deployment processes and improving application continuity. Employed Jenkins for continuous integration and continuous delivery (CI/CD), automating the testing and deployment pipeline. Showcased ability to manage version control with Git, promoting collaborative code development. Utilized Mocha and Chai for comprehensive unit and integration testing, ensuring application reliability and performance. Successfully implemented security best practices, including OAuth and JWT, to safeguard sensitive data during application interactions.

Analysis and Development of Systems at UNIGRANRIO
2014 - 2017

Java Developer at Alura Cursos Online
12/1/2016

Java: Mastering Collections - 20 hours at Alura Cursos Online
7/1/2016

Java III: Main APIs and Libraries - 12 hours at Alura Cursos Online
7/1/2016

Java II: Object Orientation - 12 Hours at Alura Cursos Online
1/1/2016

Eclipse: Extreme Productivity in the IDE with Java - 12 hours at Alura Cursos Online
1/1/2016

Safety Technician at Senac
1/1/2013