Jairo A.

Full-stack Product Engineer

Full-Stack Developer / Tech Lead
1/1/2023 - Present

Developed and launched a B2B portal for estimating and purchasing photovoltaic solar energy products, tailored to enhance the company’s import and distribution operations specializing in MLPE. Engaged in the full cycle of web-based application development, leveraging technical expertise in C# and Angular to foster project success. Played a crucial role in requirements gathering and solution delivery, collaborating closely with team members to align with client needs. Emphasized producing clean, efficient, and maintainable code through adherence to best practices and participation in thorough code reviews to ensure high standards and code quality. Handled the integration of the portal with the company’s ERP system, Protheus, to streamline operations. Administered Azure Cloud infrastructure, applying DevOps practices to optimize deployment and system management. Demonstrated technical proficiency with Angular.js, JavaScript, TypeScript, Node.js, C#, .NET Core, HTML, CSS, Azure DevOps, RESTful APIs, and SQL, ensuring robust and scalable application development.

Full Stack Developer / Tech Lead
7/1/2021 - 12/1/2022

Contributed to the development of a real estate portal for both B2B and B2C markets, leveraging artificial intelligence technologies including IBM Watson. Operated within an agile team adhering to Scrum methodologies to deliver robust technical solutions for the product. Gained mastery in a variety of technologies such as Node.js, React, JavaScript, and TypeScript, while also utilizing frameworks and libraries including Sequelize, TypeORM, Nest.js, Express.js, ejs, and jQuery. Demonstrated proficiency in front-end technologies with hands-on experience in HTML and CSS. Managed cloud infrastructures on IBM Cloud, Azure, and AWS, and optimized performance through the use of Redis and MongoDB. Ensured effective version control and collaborative development using Git.

Software developer
11/1/2020 - 6/1/2021

Excelled in requirements development, programming, and implementation phases of software Protheus. Spearheaded and guided correction and maintenance activities in various programs, ensuring optimal functionality and performance. Drafted and prepared comprehensive documentation throughout the software development life cycle. Played a pivotal role in the implementation of new systems, contributing to streamlined processes and enhanced system capabilities.

Full Stack Developer
5/1/2020 - 11/1/2020

Contributed to an agile team focused on developing web products by writing code and unit tests in accordance with established programming practices and design standards. Utilized technologies including Caché (Intersystems), Angular, and Node.js to deliver high-quality software. Actively participated in crafting technical solutions while collaborating closely with architecture and product teams to ensure alignment with overall project objectives and technical requirements.

Software developer
11/1/2019 - 5/1/2020

Managed the requirements development, programming, and implementation phases of the specific software Protheus. Led correction and maintenance activities for various programs while ensuring their efficient operation. Engaged in the preparation of thorough documentation and facilitated the seamless implementation of new systems. Demonstrated technical expertise in software lifecycle management and system integration. Contributed to the successful maintenance and enhancement of software functionalities.

Software developer
11/2/2014 - 11/1/2019

Achieved remarkable performance and proficiency in several areas of inventory management, billing, and financial operations. Demonstrated expertise in the Inventory sector by monitoring products at customers' locations using the Fluig mobile tool. This tool is built with BPM processes leveraging technologies such as jQuery, JavaScript, CSS, HTML, and Web Services, specifically designed for the mobile environment. Developed sophisticated billing routines to manage the shipment and return of products from third parties, alongside generating integrated Excel reports for efficient follow-up processes using AdvPL technology. In the Financial domain, successfully developed CNAB files for seamless bank integrations and created, tested, and deployed bank slips to be sent alongside invoices.

Additionally, managed and monitored Oracle database backups, ensuring data integrity through the control of standby servers, and maintained synchronized data to mitigate disaster risks. Contributed significantly to system development by creating and testing database triggers, functions, procedures, and restoring databases for testing purposes. Developed and tested BPM processes using the Fluig system with a focus on web technologies (Java, JavaScript, CSS, HTML, Web Services) to facilitate the integration between Fluig and Protheus tools.

Linux Instructor
1/2/2014 - 12/2/2015

Developed and delivered comprehensive preparatory courses for the CompTIA Linux+ certification. Crafted detailed theoretical content and practical material tailored to ensure students gained a clear understanding of core Linux concepts and the certification assessment format. Focused on critical areas such as system configuration, command-line interface operations, and security. Utilized instructional technology to enhance learning outcomes and utilized a variety of teaching methods to accommodate different learning styles. Ensured that all course materials were up-to-date with the latest Linux distributions and best practices. Achieved a high pass rate among students through rigorous curriculum design and effective instructional techniques.

Systems Analyst
3/2/2009 - 10/2/2014

Developed expertise in systems related to civil construction, providing support and analysis for the Protheus system in various modules including Billing, Accounting, Financial, and Inventory. Created reports and specific routines for concrete production branches and quarries, with a focus on AdvPL development. Managed, analyzed, and supported the Linx sales system for vehicle resale and workshops. Administered and performed tuning on Oracle databases, creating scripts for monitoring, maintaining standby servers, and ensuring data synchronization to mitigate disaster scenarios. Formulated policies and routines for backup and restore to support system development and testing. Administered Linux systems, developing scripts for environmental monitoring and management. Managed Fortinet firewall systems to maintain integrated and connected environments across all company branches.

Analysis and Development of Systems at São Paulo Northern State University UNORP
2010 - 2013