Lucas Nagasaki Souza Email & Phone Number

São Paulo, Brazil

As a Dev/Tech Lead and Scrum Master, I play a pivotal role in guiding and supporting our team to overcome challenges and attain our objectives effectively.I am responsible for the development and continuous upkeep of high-availability Node.js APIs, applications, and automation processes, ensuring seamless operation and performance optimization.Moreover, I lead the development and maintenance of high-availability React, Next.js, and React Native applications, catering to both internal company tasks and external customer-facing applications. My focus is on delivering top-quality user experiences and meeting client demands.Within our AWS environment, I specialize in implementing scalable solutions that leverage various technologies such as Athena, ELB, EC2, Route 53, and DynamoDB. This involves crafting architectures that can handle growing workloads and ensure reliability.Furthermore, I excel in database modeling using Mongo and Mongoose, guaranteeing robust data management solutions that align with our application requirements.In summary, my role as Tech Lead and Scrum Master combines technical expertise with leadership and project management skills to drive the success of our team and deliver robust, high-performance applications and services while ensuring scalability and availability through AWS technologies.

São Paulo, Brazil

I worked on a wide range of projects and technologies, contributing to the development and enhancement of various systems and applications.I developed routines, coroutines, and automation robots using Python and Node.js, utilizing technologies such as Selenium and Puppeteer for efficient task automation.I also designed complex frontend pages using Angular, Vue, and React to ensure visually appealing and user-friendly user interfaces.For mobile applications, I focused on hotel self-check-in and automated SMS/Calls using React Native, aiming to provide convenient user experiences.On the backend, I crafted robust applications using .NET Core, implementing advanced techniques like Mediatr, Swagger, and Dependency Injection. These applications ran within Docker and Kubernetes infrastructures for scalability and reliability.I served as a Tech Lead and code maintainer for an Automated Call Dialer system, developed in C++ with Boost, Khomp/K3L, Nuance TTS Solution components, and SQL Server as the database, supporting operations in Brazil and the United States.Additionally, I played a key role in developing and maintaining a vacation rental online marketplace portal and gateway, integrated with third-party Property Management Software (PMS) and Payment systems such as PayPal, Stripe, and Payeezy.I applied DevOps techniques to company projects, using Docker, Kubernetes, Jenkins, GITLAB CI, and Vercel to streamline development, testing, and deployment processes.One notable achievement was serving as a Tech Lead, Project Lead, and code maintainer for a communication system designed for Property Realtors in the USA. I oversaw every aspect, from designing the database structure to selecting backend and frontend technologies. This included planning the ideal infrastructure, with .NET 5, SQL Server, RabbitMQ, Vue 3, Auth0, and Vercel hosting.

São Paulo

In this role I took on various responsibilities across a range of technologies, contributing to system maintenance and feature development.I played a crucial role in maintaining and enhancing legacy ASP.NET Web Forms systems, specifically in the context of .NET Framework 4. This involved ensuring the continued functionality and improvement of these systems.Additionally, I worked on the maintenance and feature development of integration robots powered by .NET Framework 4. These robots played a vital role in facilitating seamless data integration processes.In the realm of modern development, I designed and maintained systems and REST APIs using ASP.NET Core MVC, running these applications on CentOS 7. This involved leveraging contemporary technologies and best practices for web development.I also contributed to the maintenance and feature development of web systems built using Node.js, ensuring their reliability and effectiveness.Database maintenance was another crucial aspect of my role, with a focus on PostgreSQL databases. I ensured the integrity and efficiency of these databases to support the applications and systems.Furthermore, I implemented job automation using various scripting languages, including Powershell, Shell Script, and Python, with the support of Jenkins for continuous integration and deployment.To containerize projects and streamline deployment, I utilized Docker Containers, enabling efficient project execution and scalability.

São Paulo Area, Brazil

In my prior role, I managed and developed critical systems across diverse regions and technologies.I was entrusted with the maintenance and management of an Automated Call Dialer system, known as ClientCallPlus, which operated in both Brazil and the United States. This system was developed in C++, incorporating essential components like Boost, Khomp/K3L, Nuance TTS, and relied on SQL Server as its database foundation. My role encompassed overseeing its continuous operation and performance optimization.Additionally, I took charge of a "Bulk SMS Delivery System" strategically positioned in both Brazil and the United States. This system was crafted in C#/.NET Framework 4.5, featuring a highly efficient multithreaded architecture, WebService requests, and seamless integration with Entity Framework and SQL Server as the database tech. My responsibilities included its development, maintenance, and effective management to ensure timely and reliable SMS delivery.In tandem with these responsibilities, I was deeply involved in the development and maintenance of an IVR and Bulk SMS system, built in Java, within the Spring Framework. These efforts contributed to enhancing the functionality and reliability of these systems.Furthermore, I played a pivotal role in the development and maintenance of an internal-use system within a prominent player in the printer industry. This system, built in C#/.NET Framework 4.5, leveraged ASP.NET MVC5 and Entity Framework, in conjunction with SQL Server, to facilitate seamless data management and WebService interactions. I also implemented digital document signatures using e-CPF, ensuring the integrity and authenticity of vital documents.In summary, my previous role demanded a diverse skill set, encompassing C++, C#, Java, and various technology stacks. I was entrusted with the management and development of critical systems, ensuring their reliability and functionality across different regions and industries.

I was a part of the team responsible for managing all the daily video game-related content on SCUB.info. My role encompassed a wide range of activities, including participating in podcasts and creating audio-visual content, producing articles, conducting reviews of newly released games, covering events, and publishing daily news articles on technology and video games.

São Paulo, Brasil

In my previous position, I carried out various responsibilities, including:- Server monitoring for Linux and Windows systems using Nagios, Nagios with Check_MK, and Zabbix.- IP configuration on Linux servers, specifically Debian and CentOS.- Administration of Windows servers (2003, 2008), with a focus on managing IIS.- Administration of Linux servers, including Debian and Red Hat (CentOS), involving the management of services like Apache, Tomcat, JBoss, and Plesk Server.- Management of servers in virtual environments, utilizing platforms such as VMware and Xen.These tasks were part of my overall role, which also encompassed other duties to support IT infrastructure operations effectively.

São Paulo, Brasil

In this role, my responsibilities included:- Handling and resolving service requests efficiently.- Providing support for the configuration and management of Linux and Windows hosting environments through telephone and online support channels.- Creating user-friendly documentation to assist users with tool and product usage, configuration, and troubleshooting.- Configuring and troubleshooting access reporting servers, such as Urchin.These were some of the key tasks I performed, among various other responsibilities, to ensure the smooth operation of our systems and support our users effectively.

São Paulo Area, Brazil

This job provided to me an experience I needed at the time. Since it was my second "first job", I had the chance to do my best to execute every task designated to me, and learn new things in the process.May to August 2009 - Bazaar Registration Department- Assisted in adding products and updating stock quantities in the system.- Generated reports detailing product quantities across stores.September to December 2009 - IT Department- Gained insights into the functionality of sales-related systems used in stores.- Got a glimpse from how the IT department of the company works, providing infrastructure to each company store around our country (Brazil)January to March 2010 - Textile Department- Aided in adding new products to the textile department's control system.- Received and managed new products (new arrivals) from suppliers.- Organized departmental documents and items.April to May 2010 - Pharmacy Management- Receiving and inserting product invoices and bills into the system.

My first job in the administrative area of a great company from our country. Worked as a general assistant in the Legal Sector.

Formado, Análise E Desenvolvimento De Sistemas

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