Bartosz Zapałowski

For a Toptal client, I built a custom Shopify shop with custom redirection/discount handling and supported Apache machines.

Technologies: Shopify, Shopify API, Liquid, JavaScript, PHP, and Apache.

For a Toptal client, I built the application for handling data input and import from Excel and a companion application to do warehouse management operations.

Technologies: PHP 7, Symfony 4, MySQL, Vue.js 2, and PHPOffice.

I built a driver guidance system for Banedanmark. It helps them choose their cruising speed and update it appropriately when real-time changes. This expertly helps reduce operating costs and increases passenger well-being by eliminating unnecessary stops.

I completed DevOps tasks like build setups, deployments to the environment, auto-running tests for each Git push, and situational troubleshooting.

Technologies: Java, WebSockets, Redis, MySQL, PostgreSQL, Docker, and Jenkins.

I developed a system to provide a data overview of the Danish municipality's citizens' and businesses' cases.

Technologies: .NET 4.5, MVC, Redis, Elasticsearch, WCF, Excel, SQL Server, SharePoint, and Jenkins.

I built a search engine for Danish citizens' cases, documents, and benefits. It is an interim solution used in production while waiting for an external vendor to complete the final system.

Technologies: C#, Elasticsearch, Hangfire, and SQL Server.

This back-office car fleet management service includes car maintenance and invoicing. The application was split into small parts (DDD and microservices) to ensure that each part has as few dependencies as possible and, thus, is easier to maintain.

Technologies: .NET 4.0, Solr, Oracle, JavaScript, Durandal, NServiceBus, and Microservices.

I developed a real estate advertisement portal working on the back end and end user-facing systems. Pitched usage of Solr to drastically increase search performance and capabilities.

Technologies: .NET 4, Solr, SQL, and JavaScript.

I developed the front end of a moto-advertisement search portal working on the back end and end user-facing systems. Pitched Solr to dramatically increase search performance and capabilities.

Technologies: .NET 4, Solr, and JavaScript.

I built an SEO support site for Domiporta.pl, applying various SEO suggestions to boost search results in major search engines. A quick and short project, sharing the database with the main site.

Technologies: C#, and Solr.

An authentication and authorization system that I developed for Wolters Kluwer Poland products, including online and offline products, with the C++ library to connect to an API.

Technologies: .NET 3.5, Castle MonoRail, the Castle ActiveRecord, .NET 4, ASP.NET MVC, ADO.NET, C++, and TeamCity.

I built an online dish-ordering system for a chain of Chinese restaurants in Warsaw, including a customer and back-office app integrated with a coupon printer.

Technologies: CakePHP, MySQL, and C#.

I built an automatic notary act content recognition module as an add-on to Kancelaria Notarialna, Microsoft Word, and Libre Office.

The architecture resembled microservices architecture but was placed in one app—each part did just what it was supposed to do—to keep Regular Expressions as simple as possible and to ease maintenance and extensibility.

Technologies: .NET 2, VBA, Regular Expressions, TeamCity, and Microservices.

I developed this multilingual, multidomain, online Q&A service, utilizing external experts deployed in Belgium and Spain.

Technologies: .NET 2, Castle Monorail, Castle Windsor, and Castle ActiveRecord.

I built a bug reporting module for desktop and web apps, specially made for a specific type of back-office app.

Although it was built for specific software, it was built as a microservice, so it would be possible to integrate it into any new software Wolters Kluwer produced and ensure that WK.Reporter itself has as little knowledge about it as other systems as possible.

I developed a module for the automatic updating of products.

Although it was built for specific software, it was built as a microservice, so it would be possible to integrate it into any new software Wolters Kluwer produced and ensure that WK.Updater itself has as little knowledge about other systems as possible.

Technologies: BITS, NET 3.5, Windows Forms, Microservice

I built this WordPress CMS, which integrates data from multiple tour operators and a search engine to peruse, purchase insurance, and reserve Eurotunnel trips.

Technologies: WordPress, PHP, and Regular Expressions.

I built a monitoring and alerting system that monitors debtors and alerts them when a debtor files for bankruptcy in Poland. Parses government-issued PDF files with bankruptcy records.

Technologies: Solr, Apache Tika, and Bash.

I built a system for a local chocolate producer in Warsaw to help to keep track of the production quantities and adhere to the recipes. It was fully a one-person job, from gathering the requirements, coding, testing, and deploying to maintaining the solution.

Technologies: PHP, Symfony, and MySQL.

I integrated this application with probably the largest worldwide travel platform. I also extended the API database and helped shape the application.

Technologies: .NET Core (C#), SQL Server, ReFit, Elasticsearch, and Entity Framework Core.