Alef F.
Back-end and Systems Engineer

Skills

Node.js

Apollo Graphql

Typescript

Github

Javascript

Php

Mysql

Mongodb

Amazon Aws

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Bio

Experienced Developer with eight years in the field and a keen interest in the transformative impact of technology on society.

Mid-Level Backend Developer
9/1/2021 - 12/1/2021

Gained expertise in the development and integration of payment methods directly within the VTEX platform. Acquired proficiency in VTEX-specific technologies and APIs, enabling seamless integration and efficient payment processing. Demonstrated strong skills in creating and deploying solutions that enhance the payment experience for end-users. Engaged in collaborative development, ensuring high-quality code and robust system performance.
Software Engineer
9/1/2022 - Present

Developed a payment solutions platform tailored for notary offices, incorporating new payment possibilities to enhance operational efficiency. Utilized extensive knowledge of PHP and JavaScript frameworks such as React.js to build dynamic user interfaces. Applied expertise in SQL databases for managing transactional data, ensuring secure and efficient payment processing. Leveraged RESTful APIs to integrate third-party payment gateways seamlessly into the platform. Demonstrated proficiency in version control systems, using Git to maintain and collaborate on codebases effectively. Employed agile methodologies to streamline development processes, ensuring timely delivery of project milestones. Ensured compliance with GDPR and other relevant data protection regulations to safeguard sensitive payment information.
Technical Leader
12/1/2021 - 9/1/2022

Served as a technical leader on an international project, developing proficiency in managing cross-functional teams and ensuring seamless collaboration across various time zones. Led extensive work with technologies such as Python, Django, and Flask for backend development, along with React and Angular for front-end interfaces. Demonstrated expertise in database management using MySQL and PostgreSQL, and ensured code quality and version control through Git. Utilized Docker for containerization, Kubernetes for container orchestration, and Jenkins for continuous integration and continuous deployment (CI/CD). Applied Agile methodologies and Scrum framework for efficient project management, and maintained high standards in software development and deployment processes.
Backend Developer Pl
11/1/2020 - 9/1/2021

Developed advanced technical expertise as a backend developer for a healthcare-focused platform. Proficiency achieved in PHP and Python, while mastering frameworks such as Django and Flask. Extensive work on implementing and integrating RESTful APIs. Demonstrated robust skills in database management and optimization using PostgreSQL and MySQL. Utilized Redis for caching solutions to enhance system performance. Practiced collaborative code maintenance, employing version control systems such as Git and Bitbucket. Leveraged Docker for containerization, ensuring consistent environment deployments. Applied thorough understanding of healthcare data compliance standards, including HIPAA, to secure sensitive information. Enhanced platform reliability and scalability through the adoption of microservices architecture.
FullStack Developer
11/2/2018 - 5/2/2019

Maintained and enhanced a wellness marketplace, focusing on the development of new features and the resolution of specific platform issues. Developed technical proficiency in PHP, Laravel, and Vue.js. Leveraged MySQL for database management, ensuring optimal performance and data integrity. Utilized AWS services for scalable deployment and efficient resource management. Employed Agile methodologies and collaborative tools such as Jira and Confluence for effective project management and teamwork. Demonstrated expertise in RESTful API design and implementation to enhance platform functionality and user experience. Ensured code quality and consistency through version control systems like Git. Enhanced platform security by integrating authentication and authorization protocols.
Backend and DevOps Developer
5/2/2018 - 11/1/2020

Led the backend squad and developed a microservices architecture. Built extensive expertise in Node.js, Express, and Docker, ensuring highly efficient and scalable service deployment. Utilized Kubernetes for container orchestration and implemented robust CI/CD pipelines using Jenkins and GitLab CI. Leveraged Kafka for effective streaming data processing and RabbitMQ for message brokering, enhancing system reliability. Designed and maintained RESTful APIs, ensuring seamless integration with front-end applications. Demonstrated strong skills in PostgreSQL and MongoDB for database management. Promoted agile methodologies, fostering collaboration and continuous improvement within the team.
Web Developer
2/2/2018 - Present

Developed technical expertise in web, mobile, and backend development while maintaining a complex marketplace structure. Utilized technologies including PHP, Python, and JavaScript for web applications, and gained proficiency in mobile app development using Swift and Kotlin. Demonstrated strong backend capabilities with Node.js and Ruby on Rails. Managed and optimized databases with MySQL and MongoDB, and implemented real-time data handling using WebSockets. Ensured high code quality and collaborative development practices through the use of Git for version control and Jenkins for continuous integration and deployment. Consistently delivered robust solutions aligned with business needs and user requirements.
Junior Fullstack Developer
10/2/2017 - 2/2/2018

Served as a Software Engineer, developing proficiency in JavaScript, HTML5, and CSS3. Utilized front-end frameworks such as AngularJS and React for dynamic and responsive web application development. Conducted extensive work with back-end technologies, including Node.js and Express.js, ensuring robust and scalable server-side solutions. Demonstrated expertise in database management with MySQL and MongoDB, optimizing queries for performance and efficiency.

Implemented best practices in version control using Git, contributing to collaborative projects through branching, merging, and code reviews. Leveraged Docker for containerization, streamlining development pipelines and deployment processes. Developed strong skills in continuous integration and continuous deployment (CI/CD) using Jenkins and GitLab CI, ensuring fast and reliable software delivery.

Engaged in Agile methodologies, participating in sprint planning, daily stand-ups, and retrospective meetings to enhance team productivity and product quality. Showcased ability in automated testing with frameworks such as Mocha and Chai, maintaining high test coverage and ensuring code reliability. Contributed to the enhancement of microservices architecture, ensuring modular and easily maintainable codebases.

Key accomplishments include the successful migration of monolithic applications to microservices, leading to improved system performance and scalability. Played a pivotal role in the integration of a real-time analytics dashboard, enhancing user experience with real-time data visualization. Demonstrated ability to troubleshoot complex issues, significantly reducing incident resolution time. Developed and maintained RESTful APIs, enabling seamless integration with third-party services and applications.

Throughout the tenure, fostered a culture of continuous learning and improvement, staying current with emerging technologies and industry trends.
Junior Back End Developer
12/2/2014 - 8/2/2017

Developed expertise as a junior developer working on diverse systems, including a source-destination system for street surveys. Gained valuable experience in collaborative projects, particularly in partnership with companies like Eletropaulo, now known as Enel.