Maik R.
Full-stack Product Engineer

Skills

Node.js

Spring Boot

Delphi

Java

Javascript

Angular

React

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Bio

Senior Developer with over three decades of diverse project experience and proficiency in various programming languages. Possesses a robust self-taught foundation, with a keen focus on addressing complex challenges, developing innovative solutions, and exploring emerging technologies.

Senior Systems Analyst
11/1/2023 - 3/1/2024

Collaborated on the migration of development in Java Spring Boot and DB2 to create a REST API for the SICM Municipal Credits System. Developed the frontend using ReactJS and Typescript to ensure an optimized and functional user experience. Utilized the SCRUM methodology, participating in daily alignment meetings and weekly sprint reviews. Employed GitHub for code versioning and merge requests, fostering efficient team collaboration. Managed and tracked request stories using Redmine, effectively ensuring project goals were met within established deadlines.
Senior Systems Analyst
12/1/2011 - 10/1/2023

Successfully implemented Oracle ORDS to enable REST APIs with HTTP/HTTPS protocols and OAUTH2 security authentication. Utilized OpenShift containers and Docker for the development of both frontend and backend applications. Led the creation of REST APIs for PIX services and internal operational store projects such as self-checkout, price auditing, and dispatch, employing Node.js/Oracle with JWT security authentication and documenting APIs with Swagger. Developed hybrid mobile applications using Ionic, Angular, and React. Crafted a web dashboard for commercial management chart visualization using Delphi DataSnap and jQuery, reducing BI software licensing costs and consulting fees. Created a dynamic dashboard tool that allows for the construction of customized indicators across company sectors, providing comprehensive and real-time operational performance views for enhanced decision-making.

Resolved a commercial department issue by creating a dynamic tool for generating posters, labels, and customized reports, improving operational materials' creation efficiency and contributing to fiscal incentives. Developed an application for wedding list management in a Windows CE environment using C#, supporting communication through web services built in ASP.NET and Java JAX-WS. The project later migrated to a hybrid solution using Ionic for the frontend and Node.js for the backend, achieving a more flexible and scalable system architecture. Also contributed to the maintenance of Java Spring Boot projects as RESTful APIs.
Senior Software Engineer
6/1/2010 - 12/1/2011

Implemented the use of biometrics in a Delphi medical record system integrated with Oracle and Informix databases. Assisted in reducing the backlog of various hospital management systems using Delphi and C# languages. Developed SQL and PL/SQL scripts for extracting and manipulating data from Oracle and Informix databases. Participated in the development and customization of hospital management software for a large healthcare network, demonstrating expertise in database management and software development.
Senior Systems Analyst
3/1/2008 - 10/1/2009

Served as a developer focused on software system maintenance, utilizing Delphi, C#, Oracle, and Informix databases. Delivered specialized consulting services involving the analysis of projects developed in Java. Played a key role in developing and integrating biometric functionality into software solutions using Delphi language.
Senior Systems Analyst
4/1/2005 - 7/1/2006

Participated in the development of a commercial sector application using Delphi and SQL Server in a layered architecture. Actively contributed to an integration project with the Microsiga system, utilizing SQL Server Agents to establish effective communication between systems. This integration led to significant enhancements in the efficiency and effectiveness of business processes. Developed technical expertise in Delphi and SQL Server, demonstrating proficiency in creating scalable, robust systems.
Founding Partner
1/1/2004 - 12/1/2009

Managed service contracts, ensuring projects were completed within deadlines, budgets, and quality standards through the development of project plans, task assignments, and risk management. Created websites, e-commerce solutions, and sales force mobile apps for PalmOS and WinCE, enhancing businesses' online presence, sales, and mobile functionality. Provided consultancy to identify and address technological needs by analyzing business processes and recommending customized solutions to optimize efficiency, reduce costs, and improve operational quality.
Senior Systems Analyst
4/1/2001 - 1/1/2003

Conducted research and development of new technologies for the development of the Windows CE and PalmOS platforms. Worked on sales force projects using Satellites, Embedded Form (VB/VC++), AppForge, and C# for mobile solutions on PalmOS and WinCE platforms. Developed a data synchronization application in Visual Basic with SQL Server and Interbase. Participated in the maintenance and development of applications in Delphi. Performed tasks in infrastructure as a Windows NT/2000 and Linux network administrator.
Gerente de TI translates to IT Manager from Portuguese to English. However, IT Manager is not an educational institution, but rather a job title. Please provide the name of an educational institution for translation or clarification.
3/1/2000 - 12/1/2000

Managed IT operations for multiple stores, supervising IT teams, infrastructure, networks, and related equipment and software. Participated in the installation and implementation of the IT System SIAC utilizing Itautec for a new branch. Conducted system analysis and development in Delphi with an Interbase database for administrative functions. Implemented essential services including proxy server, SMTP server, and FTP server for file sharing, internet access, and email communication. Managed Novell Netware 3.12 network administration and successfully transitioned to the Windows NT platform.
Senior Systems Analyst
7/1/1999 - 2/1/2000

Assumed responsibility for managing Information Technology throughout the aquatic park complex and the commercial office. Developed and analyzed the Park Management System using Delphi and SQL Server. Designed and implemented a financial administration system using Delphi and SQL Server. Administered Windows NT and SQL Server networks, as well as turnstile systems, access cards, and customer consumption. Implemented proxy and SMTP servers to facilitate internet access and email usage. Managed hardware and software purchases and maintenance, ensuring optimal performance and uptime for all IT-related operations.
Head of Data Processing Center
8/1/1989 - 9/1/1998

Designed and developed a commercial management system in Clipper language, replacing spreadsheets to achieve significant improvements in sales analysis and management of margin and stock, resulting in a 30% increase in productivity in data processing. Additionally, designed and developed a market research application which led to a 30% boost in decision-making regarding product pricing relative to competitors. Developed an application that expedited the typing and printing of inventory records, and another that streamlined the accounting closing process by integrating it with the company's accounting system, RM Sistemas. Led the implementation and administration of the Itautec system (SIAC), ensuring system updates, maintenance, and user training. As a Novell Network Administrator, oversaw and resolved network issues for Windows NT-based systems. Managed the IT and infrastructure department for superbox division stores located in São Paulo-SP, Jundiaí-SP, and Recife-PE, ensuring optimal performance of all technological systems and supervising daily operations.