Walmir Henrique R. Machado Email & Phone Number

São Paulo, Brazil

As a Full Stack Developer at Banco Midway, I am responsible for maintaining, enhancing, and optimizing the loan management system, ensuring it meets business and regulatory requirements.Key Responsibilities:• Developing and maintaining legacy systems built on .NET Framework 4, ensuring high availability and reliability of critical processes for the business.• Designing, optimizing, and managing complex SQL queries and stored procedures to efficiently handle and process large datasets, improving overall system performance.• Identifying, troubleshooting, and resolving critical issues, implementing enhancements to streamline operations and ensure continuous compliance with business and regulatory requirements.• Collaborating closely with cross-functional teams to analyze business needs, define technical requirements, and deliver effective, scalable solutions.• Driving improvements in system architecture and performance by suggesting and implementing strategic solutions that align with the company’s goals and technical roadmap.

Belo Horizonte

As a Technical Lead and Backend Developer, I played a key role in high-complexity projects, utilizing .NET 5/6 and other technologies to design, develop, and optimize backend solutions. Below are some of the most impactful projects I contributed to:• LocalPhone: Led the backend development of a communication platform integrating instant messaging, SMS, and audio/video calls, with a strong focus on encryption and Blockchain integration. I designed the backend for both web and mobile platforms, optimizing performance and scalability for real-time communication.• Campus: Developed an educational system for Colégio Santo Agostinho, creating an integrated workflow for teachers to plan lessons efficiently. Focused on building robust backend systems to support a seamless user experience.• XFactor: Contributed to the development of an educational platform for American schools, providing an online portal for extracurricular lessons for students and teachers. As a Full-Stack Developer, I worked with .NET 5 and Blazor, ensuring scalability and high performance across all platform functionalities.• Santander: Worked as a Full-Stack Developer for two years in an outsourced capacity, focusing on MVC and API development using .NET versions 2-4. I was responsible for developing APIs using Hexagonal Architecture, ensuring they met the bank's standards. Key contributions included the optimization of critical systems like customer retention processes and the successful integration during the Olé Bank x Santander merger.In each of these projects, I was responsible for driving technical excellence, ensuring high performance, and collaborating closely with cross-functional teams to deliver scalable, maintainable solutions. I consistently focused on improving system performance, evolving products, and aligning with business goals.

Belo Horizonte

I began my career as a Full Stack Developer, initially working with PowerBuilder and VB.Net, where I quickly developed a strong foundation in both frontend and backend technologies. Over the course of my career, I took on increasing responsibilities, including the following:• Web Services Development: Took charge of maintaining and enhancing SOAP and REST web services for pension and financial products, ensuring seamless communication and data integrity between systems.• Client-Server to Web Migration: Played a crucial role in migrating legacy client-server applications to modern web-based solutions, focusing on ensuring smooth transitions, optimizing performance, and improving scalability.• Client Engagement: Worked directly with clients to gather requirements, provide consulting, oversee deployments, and resolve bugs efficiently. This hands-on approach allowed me to deliver tailored solutions that met client needs and strengthened relationships through excellent customer support.• Cross-Functional Collaboration: Collaborated with diverse teams to ensure the successful integration of solutions and delivery of high-quality products, meeting both business and technical objectives.In this role, I developed a deep understanding of the importance of bridging the gap between development and client satisfaction, ensuring both technical and business goals were consistently met.

Bachelor'S Degree, Computer Science

Final Project: Crowd Computing and Operations Research: Feasibility Study for Application in Physical Stores via Mobile Technology (Grade.

Graphic Design

Technical Education, Informatics