Leandro P.

Full-stack Product Engineer

Senior Software Engineer
9/1/2021 - 1/1/2024

Achieved substantial improvements in software infrastructure through refactoring and enhancement of a legacy API. Provided significant support to the customer service team, addressing technical issues and ensuring smooth operations. Assisted cross-functional teams in the implementation and maintenance of PHP, Laravel, and design patterns, emphasizing clean code principles and SOLID design. Played a key role in documenting, architecting, and developing several microservices, including patient integration, patient management, prescription analysis, and KYC (Know Your Customer). Developed a webhook microservice named Scorpion. Automated project deployments using Gitlab, enhancing efficiency and reliability. Created a comprehensive PHP boilerplate and an installer to streamline the setup of microservices.

Engaged in extensive development with Keycloak (Java) and facilitated integration with third-party partners. Conducted technical integration analyses to ensure seamless connectivity. Authored RFCs to establish best practices for Git commits, branching, merge requests, and security protocols. Developed a standard PHP image in a Dockerfile, optimizing it for security by excluding the root user. Implemented security pipelines in Gitlab utilizing Grype to identify vulnerabilities, and established code analysis pipelines to ensure adherence to PSR RFC standards, enhancing overall code quality and security.

Senior Software Engineer
1/1/2019 - 8/1/2021

Implemented cadastral analysis of companies and a new payment gateway for customers. Developed and integrated the neoassist system while enhancing financial processes. Delivered consolidated results for the BI team and deployed scripts within the 2-plan framework. Designed email templates using Liquid language. Demonstrated technical skills in PHP, CSS, HTML, and Javascript, working with frameworks such as Laravel and Angular, and libraries including Bootstrap, Jquery, and Node.js. Utilized preprocessors SASS and LESS. Managed MySQL and Mongo databases. Leveraged AWS resources, including EC2, RDS, OpsWorks, CloudFront, S3, ELB, Route53, and resource management with tagging for monitoring and cost reduction.

Senior systems analyst
2/1/2016 - 12/1/2018

Developed proficiency in PHP, CSS, HTML, and JavaScript while working on the BigData, Service Protocol, Freight Classification, and API projects. Leveraged frameworks such as Laravel and Angular, as well as libraries like Bootstrap, jQuery, Node.js, and preprocessors SASS and LESS. Contributed to the Administrative and Central System of the Subscriber by delivering various features. Gained expertise in managing databases, specifically deploying MySQL and MongoDB (Mongo Atlas). Performed MySQL script refactoring for Mongo document integration and executed complex Mongo queries using aggregates for data manipulation. Utilized AWS resources including EC2, RDS, OpsWorks, CloudFront, S3, ELB, and Route53. Managed AWS resources with tags for effective monitoring and cost reduction.

Senior systems analyst
9/1/2013 - 1/1/2016

Led the development of the Project Portal (EPROJ) and various systems including the Strategic Management Guidelines and Operational Systems, HR Library System, Organizational Chart System, Quality Diary, and the 5S System for SGI. Created a new system template utilizing Bootstrap and customized the Codeigniter framework for new organizational systems. Provided technical support for Legacy Systems and the Logix ERP, ensuring operational continuity. Developed and maintained flow creation and support using the LECOM platform. Enhanced professional skills through participation in courses related to Project, Risk, and Time Management, Business Analysis of Projects, and Project Requirements Analysis. Gained proficiency in Business Intelligence (BI), Office 365, and management languages. Facilitated training sessions as a UGB Basic Management Unit Facilitator and led the Esmaltec Systems Team as a facilitator, fostering teamwork and better project outcomes.

Senior PHP Programmer
1/1/2012 - 4/1/2013

Developed proficiency in creating a variety of digital platforms, including websites, blogs, and comprehensive systems, leveraging a deep understanding of front-end and back-end development. Demonstrated expertise in conducting thorough requirements analysis to ensure project specifications align closely with client needs and expectations. Delivered exceptional technical support to end-users, providing troubleshooting and resolving technical issues efficiently.

PHP Programmer
5/1/2011 - 12/1/2011

Spearheaded the development of advanced camera security systems, focusing on the introduction and integration of innovative surveillance technologies. Gained deep technical expertise in Python and C++ for backend system development, along with proficiency in using OpenCV and TensorFlow for real-time image processing and machine learning tasks. Implemented high-efficiency algorithms to enhance object detection and facial recognition accuracy. Utilized RESTful APIs to enable seamless communication between cameras and central monitoring systems. Ensured robust data storage solutions with MySQL and PostgreSQL, and leveraged cloud services like AWS for scalable deployment and maintenance. Demonstrated adeptness in version control and collaborative coding practices using Git and Jenkins for continuous integration and delivery (CI/CD). Enhanced system security through the implementation of advanced encryption protocols and adhered to industry standards and compliance requirements. Regularly conducted performance tuning and system optimizations to achieve low latency and high throughput in surveillance operations.

PHP Programmer
10/1/2010 - 4/1/2011

Developed proficiency in the development of websites, blogs, and systems, with a strong emphasis on requirements analysis. Demonstrated expertise in providing technical support for various projects, ensuring seamless operation and user satisfaction. Proficient in utilizing modern web development tools and frameworks to deliver high-quality, scalable solutions.

Intern
3/1/2009 - 12/1/2010

Gained extensive experience as a systems developer at a Documentation and Research Center and an Educational Resource and Support Center. Developed technical proficiency in languages and frameworks including PHP as well as tools such as Doctrine and Silex. Conducted significant work with front-end technologies Ext JS 4.2 and modern JavaScript frameworks NodeJS and Vue.js. Acquired expertise in database management with PostgreSQL and MongoDB, ensuring data integrity and efficient retrieval. Leveraged version control systems SVN and Git for collaborative code maintenance and version tracking. Engaged in problem-solving strategies to optimize system performance and user satisfaction.

Computer Science at Federal University of Goiás
2007 - 2012

Computer Software Engineering at State University of Ceará
2013 - 2014