Douglas D.

Full-stack Product Engineer

Tech Lead
5/1/2021 - Present

Led the technology team with a focus on Node.js and TypeScript, achieving significant project milestones and enhancing backend development efficiency. Developed and implemented robust backend services, leveraging the power of Node.js for scalable server-side applications. Demonstrated proficiency in TypeScript, ensuring type safety and reducing runtime errors. Collaborated with cross-functional teams to integrate Node.js applications seamlessly with front-end technologies and various database systems. Played a key role in optimizing development workflows, utilizing tools such as Git for version control and continuous integration systems to maintain high code quality standards.

Senior Back-End Developer
3/1/2021 - 8/1/2021

Served as a Senior Back-end Developer, with a strong emphasis on GoLang. Developed proficiency in designing and implementing scalable, high-performance systems. Utilized GoLang extensively for building microservices architecture, ensuring optimal performance and reliability. Demonstrated deep knowledge in working with Docker and Kubernetes for containerization and orchestration, achieving seamless deployment processes. Applied expertise in SQL and NoSQL databases such as PostgreSQL and MongoDB, ensuring efficient data management and retrieval. Managed source code and collaboration using Git, incorporating best practices in version control. Integrated continuous delivery pipelines using Jenkins, boosting deployment efficiency. Developed and maintained RESTful APIs, ensuring robust and secure communication between services. Employed monitoring and logging tools such as Prometheus and ELK stack for maintaining system health and performance. Facilitated team growth and knowledge sharing through mentoring junior developers and conducting code reviews.

Senior Developer
12/2/2020 - Present

Led the design and implementation of scalable web applications using Java, Spring Boot, and Hibernate. Utilized advanced frontend frameworks such as React.js and Angular to enhance user interface development. Streamlined CI/CD processes through Jenkins and Docker, significantly improving deployment efficiency. Employed AWS for cloud services, optimizing performance and scalability of applications. Demonstrated deep knowledge of microservices architecture and RESTful API development. Expertly managed databases including MySQL, PostgreSQL, and MongoDB for robust data management solutions. Spearheaded code quality initiatives and collaborative development using Git and Bitbucket. Mentored junior developers, fostering an environment of continuous learning and technical excellence.

Backend Engineer
7/2/2020 - 2/2/2021

Gained expertise in Python and Java, with substantial experience in developing and maintaining scalable backend systems. Utilized frameworks such as Django and Spring Boot for efficient web application development. Leveraged RESTful and GraphQL APIs to enhance data interchange capabilities between client and server. Worked extensively with relational databases including MySQL and PostgreSQL, along with NoSQL databases such as MongoDB and Redis, to ensure optimal data storage solutions. Employed containerization using Docker and orchestrated services with Kubernetes for streamlined deployment processes. Applied automated testing methodologies using PyTest and JUnit to ensure code reliability and integrity. Enhanced continuous integration and deployment pipelines using Jenkins and GitLab CI, facilitating seamless code integration and delivery. Developed proficiency in using cloud platforms like AWS and Azure to deploy and manage services at scale. Ensured robust code version management and collaborative development through Git and GitHub, fostering a streamlined and efficient workflow.

Web Systems Developer/Programmer
8/2/2017 - Present

Demonstrated proficiency in PHP and Ruby on Rails, consistently developing new features and maintaining existing systems. Leveraged frameworks such as AngularJS and React to enhance front-end capabilities. Utilized PostgreSQL and MySQL for efficient database management and wrote complex queries to optimize performance. Engaged in continuous integration and deployment processes using Jenkins and Docker, ensuring seamless updates to the system. Conducted code reviews and collaborated with team members using Git for version control. Implemented RESTful APIs to facilitate communication between various components of the system. Developed and maintained unit and integration tests, contributing to overall code quality and system reliability.

Web Developer
5/2/2014 - 7/2/2017

Developed proficiency in HTML5, CSS3, and JavaScript, with extensive experience using modern front-end frameworks such as React and Angular. Demonstrated expertise in server-side languages including Node.js and Python, particularly with Express.js and Django frameworks. Engaged in database design and management utilizing MySQL, PostgreSQL, and MongoDB. Utilized version control systems like Git and SVN for collaborative development and code maintenance. Implemented RESTful APIs and integrated third-party services and APIs to enhance the functionality of web applications. Conducted performance optimization and cross-browser compatibility testing to ensure robust and responsive user interfaces. Applied Agile methodologies, using tools such as Jira and Trello, to manage project timelines and deliverables effectively.

Information Technology at Tiradentes University - Unit
2017 - 2022

Computer Technician at CEPEP - Mossoró
2014 - 2015