Marcus H.
Full-stack Product Engineer

Skills

Cascading Style Sheets

Visual Basic

Transact-sql

Visual Basic .Net

Microsoft Sql Server

Oracle Database

Html

Javascript

Python

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Bio

An accomplished IT professional with extensive expertise in the integration of business processes, systems architecture, infrastructure, networking, and database management. Specialization centers around Microsoft technologies, including C#, Visual Basic.NET, ASP.NET, and SQL Server. Demonstrates flexibility and adaptability through proficiency in Linux, Python, and MySQL since 2018, exemplified by work on advanced projects such as facial recognition systems. Renowned for quickly mastering new technologies and seamlessly transitioning across various technical environments.

.NET Developer
12/1/2022 - Present

Managed tickets via Jira, utilizing Agile methodology with Scrum to ensure efficient workflow. Conducted surveys of new requirements and initiated software improvements and technological upgrades to .Net Core 6.0. Leveraged Jenkins for continuous integration and deployment processes.
Senior Systems Development Analyst – CLT
5/1/2021 - 12/1/2022

Demonstrated proficiency in Agile Scrum methodology, utilizing tools such as JIRA, GIT, Jenkins, and Sonar. Gained extensive experience working with Oracle databases and developing software using C# and PL-SQL. Regularly employed technologies including Nhibernate, JavaScript, jQuery, Ajax, HTML, CSS, Web Services, Web Forms, MVC, and Windows Forms. Operated and maintained critical systems like SCPROD, GM, APLAT, and GOFP. Completed training on ISO 9001 standards to ensure quality management and compliance.
Senior Systems Analyst
12/2/2012 - 4/2/2014

Contributed to the development of the SIGEM System for the Secretary of Education of the State of Rio de Janeiro, produced onsite at the client PRODERJ and adhering to their methodologies. Demonstrated expertise in coding functionalities for Excel data importation, with the software capable of monitoring file system folders and initiating import events. The code was designed to be transformed into a Windows service, utilizing C#. Participated in multiple requirement gathering meetings for the SIGEM System, ensuring thorough understanding and documentation of project needs.

Developed critical project documents including the Project Opening Term (TAP), Software Requirement Definition (DRS), and project schedules. Created UML diagrams such as Activity Diagrams, Class Diagrams, and Use Case Elaborations, alongside developing the data model. Prototyped system screens using the Pencil tool for initial design visualization.

Exhibited technical proficiency in MVC 4 architecture, jQuery, LINQ, lambda expressions, and data annotations, primarily utilizing the C# language.
Managing Partner.
6/2/2012 - 12/2/2012

Developed an SQL code generator and architected a layered software creation process with high levels of automation in the implementation phase. Utilized procedures and rules within a SQL Server database, and created a generic Web Service to handle CRUD operations across Web, Mobile, and desktop projects. Additionally, designed generic components for web site projects.

During the creation of a web system for managing job openings and resumes, leveraged expertise in programming languages and frameworks including C#, VB.NET, and Transact-SQL. Employed advanced techniques such as reflection and AJAX, and applied principles of inheritance and interfaces. Implemented design patterns such as Factory to ensure robust and maintainable code architecture.
Project Coordinator
10/2/2010 - 6/2/2012

Successfully led the coordination of a development team, establishing and defining solution architecture while standardizing programming practices. Conducted thorough analysis, programming, testing, validation, and documentation of systems. Developed proficiency in Visual Studio 2008 and 2010, including extensive use of WebService and programming for Windows Mobile, Windows Forms for desktop applications with UI multithread updating, and multithread console applications for databases using Visual Basic.net. Demonstrated expertise in building Windows services utilizing multithreading for mobile database generation. Managed databases efficiently with SQL Server 2005 and 2008, as well as SQL Mobile 3.5. Delivered robust solutions through ASP.NET programming.
Mid-Level Systems Analyst
3/2/2010 - 10/2/2010

Analysis, programming, testing, approval, and documentation of systems under the DownStream team's responsibility. Gained expertise in developing and maintaining the Supply Point System (SPA) at a national level, accessible via the provided governmental address. Worked on Sic Bolsas, an academic scholarship control system on the intranet using ASP3.0, demonstrating skills in web-based intranet application development. Also contributed to the Product Movement System (SIMP) utilizing VB6 technology, showcasing proficiency in Visual Basic.
Mid-Level Systems Analyst
1/2/2007 - 1/2/2009

Analyzed legacy systems to implement the ERPMicrosiga system, focusing on modules such as Fixed Assets, Billing, and Inventory. Conducted extensive data migration from DOS and Windows systems to SQLServer, DBF, and Paradox databases. Maintained billing systems using Visual Basic 6.0, SQL Server, and a 3-tier model. Provided maintenance for collection systems with a similar tech stack. Ensured the smooth operation of a franchise control system utilizing Delphi 3.0 and MSDE. Supported the accounting and reporting system for currency variation developed in Clipper using DBF with ADS. Created installers for Visual Basic 6.0 systems and performed checks and analyses of inconsistencies in the billing database model, identifying the need for improvements. Maintained ASP.NET 2.0 and ASP.NET 3.5 systems, and facilitated the migration of WebServices to WCF technology.
Programmer - Visual Basic 6.0
6/2/2004 - 11/2/2007

Involved in the entire project life cycle, participating in various systems through process surveys, reverse engineering, documentation, routine optimization, and training. Organized the work environment by creating distinct databases for the development, approval, and production environments in the development of new modules, with limited access for each team. Coordinated tasks across IT areas to ensure timely project delivery, adhering to the IQMS methodology (Integrated Quality Management System).

Worked on several significant systems including Import, which records and controls the entire process of the company's import operations and their associated costs; Stock Analysis, aiding in predictions about stock obsolescence based on sales estimates and current stock positions; Invoice, managing and issuing documents necessary for exporting the company's products; SisCost, assisting in the calculation and documentation of planning costs for items used in the factory; and Omega, monitoring production to ensure products are manufactured within established standards.