Tonimuiller A.
Full-stack Product Engineer

Skills

Asp.net

Ionic

Typescript

Sql

Github

Microsoft Sql Server

Javascript

Mysql

Mongodb

Amazon Aws

Angular

Tonimuiller is available for hire

Hire Tonimuiller A.

All Howdy Candidates are vetted for skills and english proficiency.

Bio

A seasoned Full Stack Developer with over 12 years of diverse experience in the tech industry, specializing in the development of desktop applications using Delphi, mobile applications with Java and Ionic, and web applications with Php and C# .NET. The past decade has seen a dedicated focus on full stack web development, with a particular emphasis on Angular for front-end development and C# .NET for back-end operations. Proficient in creating robust solutions across a variety of domains, including ERP systems, fiscal applications, sales force automation, logistics, e-commerce platforms, healthcare software for clinics and laboratories, financial reconciliation tools, and document management systems. Development methodologies employed range from Software as a Service (SaaS) to monolithic architectures and microservices, showcasing adaptability and a comprehensive understanding of modern software development practices.

Senior .Net Back-end Developer
8/1/2022 - Present

Developed the new official gazette for the state of São Paulo, leveraging microservices, CQRS, and .NET Core 7 within the principles of Clean Architecture. Data management utilized SQL Server and MongoDB, with Entity Framework Core and Dapper as the ORM frameworks for data access. Ensured backend business rules reliability through unit testing with NUnit. Employed Docker containers to supply the necessary infrastructure resources. The system interface was crafted using ReactJS, integrating with REST APIs and SignalR sockets for enhanced usability. Implemented asynchronous communication between microservices using RabbitMQ (AMQP). User searches for journal articles were facilitated by Elasticsearch, and article downloads in PDF format were stored using MongoDB's GridFS. Project management was executed using Scrum methodologies.
ASP.Net Full Stack Developer Analyst
12/1/2020 - 8/1/2022

Developed and maintained integrations with APIs and web services from various acquirers and sales and payment management platforms, including Ifood. Utilized C# .NET and .NET Core to create console applications, class libraries, and Restful web API projects. Implemented Hangfire for scheduling and executing data searches and processing schedules. Delivered data presentation through a system built in Asp.net MVC with C# and jQuery, leveraging SQL Server and NHibernate for data access. Engineered an integration system with a financial market infrastructure registrar using Asp.net Web Api, C#, Angular 11, DevExtreme, Typescript, Entity Framework, and SQL Server. Developed a custom Single Sign-On (SSO) solution with ASP.NET Identity, adhering to OAuth2 and OpenID Connect standards to ensure security. Emphasized code quality and reliability by creating unit tests with NUnit and Mock. Managed CI/CD configuration and maintenance utilizing Jenkins and ensured code quality through Sonarqube analysis.
Software Developer
2/1/2017 - 12/1/2020

Developed proficiency in ASP.NET, including extensive work with technologies such as C#, MVC framework, and Web API. Gained expertise in front-end development with AngularJS and Angular 2+, along with JQuery, CSS, and HTML. Demonstrated capability in leveraging ASP.NET Core for building scalable web applications. Utilized Entity Framework and EF Core for data modeling and database interactions.
Full Stack and Mobile Web Developer
1/1/2015 - 12/1/2017

Developed systems using ASP.NET (VB) and MSSQL Server, as well as PHP and MySQL. Crafted web interfaces utilizing HTML, CSS, and JavaScript frameworks including JQuery, AngularJS, Angular, and Vue.js. Engineered applications for Android and iOS, employing Java for native development and the Ionic framework for hybrid solutions. Spearheaded the development of applications for Google Glass using Java native. Managed and enhanced logistics management systems for the heavy vehicle manufacturing industry with Asp.net web forms (VB.net) and MSSQL Server. Maintained and developed systems in PHP, MySQL, and front-end technologies (HTML, CSS, JavaScript, JQuery, AngularJS, Angular, Vue). Specialized in developing native Android and iOS apps and hybrid applications with the Ionic framework, in addition to Google Glass app development using Java native.
Programmer
1/2/2012 - 12/1/2014

Specialized in developing systems using Delphi with a focus on managing Firebird databases. Acquired expertise in building libraries with C# .NET and developing applications for the Android platform. Advanced skills in ERP systems development leveraging Delphi and database management with Firebird and MS SQL. Demonstrated proficiency in creating C# DLL libraries and delivering robust Android applications.
Java Programmer
2/2/2010 - 7/1/2012

Engineered a comprehensive sales force system for Palm using the J2ME platform, enhancing mobile sales capabilities. Carried out back-end PHP web service development to support the system. Leveraged extensive J2ME expertise to design and implement mobile sales functionalities for Palm OS, ensuring seamless integration through sophisticated PHP web services. Developed a robust architecture to handle data synchronization and system reliability.
Delphi Developer
12/2/2007 - 1/1/2010

Gained expertise in system development utilizing Delphi 7, with a focus on Firebird and Microsoft Access database maintenance. Effectively conducted requirements elicitation and managed user change requests, ensuring precise alignment with user needs. Provided comprehensive user support, demonstrating a strong ability to troubleshoot and resolve issues efficiently.