
Aleksander Kowalczyk
Verified Expert in Engineering
Software Developer
Aleksander is a senior .NET developer with experience in software architecture design and analysis, project management, and team leadership. Thanks to the variety of industry sectors and roles in his background, he has the ability to learn quickly and to manage unexpected obstacles.
Portfolio
Experience
Availability
Preferred Environment
TFS, Subversion (SVN), Git, WebStorm, Visual Studio, .NET Core, React
The most amazing...
...thing I've created is a framework for rapid development of line-of-business applications.
Work Experience
Senior Full-Stack Developer
Munu AS
- Developed a QR-based self-service app for F&B/HoReCa.
- Created a modern POS system working offline and online, synchronized with self-service ordering.
- Started the process of growing the development team by hiring senior developers.
- Introducing product development processes, from ideation to delivery.
- Mobile app for waiters for a quick and efficient ordering process.
Senior Full-stack Developer
RetailPOS (Toptal Client)
- Wrote the main POS app for a touch-based POS device.
- Created a small POS app for Android phones and tablets.
- Developed the TableApp for customer self-service for Android tablets.
- Integrated all of the above with various peripherals like bank terminals, weights, displays, bard code, QR scanners, etc.
- Created a service for communication between the apps.
Senior Full-stack Developer
Meeteor, LLC (Toptal Client)
- Integrated Google Calendar using the Google Calendar API in the back-end using Ruby on Rails and creating a Google Chrome Extension for the front-end.
- Integrated Outlook Desktop for PC (2010-2016 versions) with a custom Outlook COM add-in.
- Integrated Office 365 in the scope of Outlook web and desktop, 2016 Windows and Mac, with a custom office app.
- Integrated Atlassian HipChat using React in the front end and Node.js in the back end.
Senior .NET Developer
iQuest, LLC
- Created the architecture for a public-facing, cloud-based web application using Onion Architecture and domain-driven design.
- Implemented the foundations of the web application back-end tier using WebAPI in the newest ASP.NET 5 version.
- Implemented the foundation of the web application front-end tier using ASP.NET 5 and AngularJS.
- Trained co-workers in ASP.NET 5 to participate in the development of the major web app of the platform.
- Consulted on technical matters with the founders on the technical possibilities in the scope of app development.
- Provided time estimations and project management support.
Senior .NET Developer and Technical Lead
OpenSky Data Systems
- Created a mobile Tablet PC Windows 8.1 application with user-friendly touch support that provides a unified approach for medical staff to conduct clinical assessments for home and acute care of elderly patients.
- Created a library that fixes bugs in touch support WPF and adds support to the Win8 touch keyboard.
- Analyzed technical solutions as the tech lead and suggested the most appropriate ones for provided expected functionalities.
- Consulted with project managers on development processes, timing, and approaches, as well as UI/UX design.
- Discussed possible reasons for issues and ways to analyze them more deeply with QA to provide better feedback for developers.
- Trained developers in WPF, MVVM, and best practices in developing Windows desktop applications with touch support.
- Projected the whole structure of the solution on the client-side.
- Implemented the projected solution in collaboration with the development team.
Senior .NET Developer and IT Manager
KOBA Systems
- Created a sales system designed to support ticket sales for transportation companies, with potential for sophisticated generation of preconfigured sales reports and statistics on demand by the end-user.
- Developed a project management system for accounting companies.
- Built and maintained the front-end software for ticket machines and ticket POS.
- Conducted business analysis for a dedicated rehabilitation hospital system.
- Served as the project manager and team leader in the development process on the first pilot phase for a dedicated system for a rehabilitation hospital.
Senior .NET Developer and IT Manager
Inteko
- Recruited developers and IT specialists and established an IT department.
- Managed the newly-established IT department consisting of .NET developers, testers, support, and implementation specialists.
- Created an MS SQL/WCF-based back-end for 32 ticket machines selling tickets of the Silesian Railways.
- Built an MS SQL/WCF back-end and a Windows embedded front-end client application that allows for the sale of Silesian Railway tickets by various sales agents such as small shops. The sales system was used by 60 sales agents.
- Created a server component that receives data from GPS Trackers mounted in 72 trains via TCP/IP signals and a web application that allows for following actual train positions and routes.
Senior .NET Developer | Project Manager
Tectocom
- Programmed the Windows Client part of a dedicated product management system in WPF.
- Created add-ins to CAD Application Solidworks and invented integration for them with the product management system.
- Developed add-ins to MS Outlook, MS Excel, and MS Word, integrating them with the product management system.
- Trained developers in the scope of WPF application development.
- Led the team and managed projects to implement the product management system for a pilot customer.
- Conceptualized new functionalities of the PDM such as CAD applications integration, MS Office integration, and CRM.
Senior .NET Developer and Team Leader
Logotec Engineering S.A
- Migrated big CRM and DMS systems from ASP/VB6 to .NET.
- Consulted with implementation specialists and bigger end customers (>100 users) about expected new functionalities.
- Created a local client for Windows (WPF/WCF) that integrates the DMS-managed documents with the Windows File Explorer through the context menu and a tray application.
- Built an add-on to Microsoft Outlook that integrates the mail messages and appointments with a CRM system.
- Integrated the DMS system with MS Dynamics CRM solution.
- Designed a completely new front-end for big DMS and CRM systems in ASP.NET/Ajax.
- Developed a mobile version of the CRM system for Windows Mobile devices.
- Implemented several new functionalities in the DMS and CRM systems.
.NET Developer
Freelance
- Developed a backup tool that watches several directories with MFT/USN Journal and copy-blocked files using Volume Shadow Copy Service.
- Built a dedicated mobile CRM application running on Windows CE.
- Designed and developed an analysis tool for card games.
- Conceptualized and created a highly configurable and reusable framework for data management applications.
- Consulted on the scope of software development and architecture.
.NET Developer
MiComp Computer Systems
- Created an add-on to Microsoft Outlook, allowing full synchronization of mail, appointments, and tasks with a web-based document management system.
- Designed WYSIWYG-based workflow diagrams for the document management system on a WinForms embedded control in an ASP.NET WebForms application.
- Built a drag-n-drop file upload on a web-based system with the help of embedded WinForms controls.
- Wrote data archiving functionality in a document management system written in ASP.NET WebForms.
- Fixed bugs in the document management system (ASP.NET WebForms).
Junior PHP Developer
MMG Marketing Management Group
- Created a highly customizable content management system.
- Built various websites, particularly online shops.
- Designed databases in MySQL for online shop websites.
- Fixed errors in PHP, JavaScript, MySQL on existing websites created by former employees.
- Designed the UI/graphics for various eCommerce websites.
Experience
A7 EBusiness Platform
Quicknotes
A7 DocumentDb Studio
A7 JsonViewer
A7 SqlTools
Skills
Languages
TypeScript, JavaScript, C#, XAML, T-SQL (Transact-SQL), SQL, HTML, HTML5, PHP, CSS, C++/CLI, VB.NET, Visual Basic 6 (VB6), CSS3
Frameworks
.NET Core, ASP.NET Core, ASP.NET MVC 6, Windows Presentation Foundation (WPF), .NET, ASP.NET Web API, Windows Communication Framework (WCF), CSLA, Swagger, ASP.NET MVC, AngularJS, ASP.NET, Entity, ASP.NET Web Forms, .NET Compact, ASP.NET MVC 5, Ruby on Rails (RoR), Redux
Libraries/APIs
React, Node.js, jQuery, Task Parallel Library (TPL), Managed Extensibility Framework (MEF), Windows Forms (WinForms), Entity Framework, Facebook API, OpenStreetMap API
Tools
Visual Studio .NET, SOLIDWORKS, Visual Studio, WebStorm, Git, Subversion (SVN), TFS
Paradigms
Design Patterns, Model View Viewmodel (MVVM), Test-driven Development (TDD), Service-oriented Architecture (SOA), UX Design, Model View Controller (MVC), UI Design, Plugin-Based Architecture, COM+, Agile Software Development
Platforms
Universal Windows Platform (UWP), Xamarin, Azure, Meteor, Windows, Windows Server, Windows Mobile
Storage
Microsoft SQL Server, NoSQL, Azure Blobs, Azure Queue, MongoDB, MSSQLCE, MySQL, Azure DocumentDB, Azure Table Storage, Azure Websites, PostgreSQL
Other
Freelancing, Single-page Applications (SPA), DocumentDB, Web Services, Ajax
Education
Bachelor's Degree in Computer Science and Computer Networks
University of Silesia - Katowice, Poland