Experience

Kaluza

• United Kingdom
• Utilities
• 300 - 400 Employee

• Senior Software Engineer

  • Aug 2017 - Present



Acumen - Smart Revenue Management

• United Kingdom
• Software Development
• 1 - 100 Employee

• Software Developer

  • Dec 2014 - Aug 2017

  I worked on two applications – Invest, responsible for promotion analysis and Radar, a price optimisation tool. I participated in integration with client finance systems, including SAP. - I traveled to Sydney for 4 weeks lone working in a client’s office for the testing SAP integration project. - I sped up initial promotion cache loading time from 7 minutes to 10 seconds, by rewriting an inefficient LINQ query. - I generalised the initial hierarchy set up process (SQL and T-SQL), to reduce time from 2 days to 30 minutes by implementing manual integration database, generated based on client specific hierarchy. - I prepared and documented the process of setting up application for new clients, to increase the speed of delivery and clarifying for the analysts, what data was required from clients. - I reduced bulk update time from 25 hours to less than a second; and database size from 100GB to 2GB, by changing database structure and removing indexed views. - I set up basic automated deployment with Octopus, which led to fully automated deployments and reduced time required for them. - I undertook many info-share presentations in-house covering different technologies. Languages: C#, SQL, T-SQL, PowerShell Other: .NET 4.6, Simple.Data, WebAPI, ASP.NET MVC, Silverlight, Octopus, Azure (including: WebJobs, Blob Storage, VM, Service Bus, Log Analytics), MongoDB, RabbitMQ, CQRS, Visual Studio Online, Posh-Git, YourKit, TDD, Pair programming Show less



Iglu.com

• United Kingdom
• Travel Arrangements
• 100 - 200 Employee

• Junior Software Developer

  • Oct 2013 - Dec 2014

  I worked on IgluSki and IgluCruise – websites aggregating holidays from other suppliers. - I changed stored procedures, responsible for calculating prices with removing duplicated code, solving bugs and improving performance. It reduced invalid prices from 5 per day to 0. - I rewrote the module responsible for calculating prices and search engine (T-SQL), which reduced the time from 30 seconds to 500 milliseconds, by denormalization. Used by IgluCruise and Planet Cruise websites. - I implemented integration with feefo, to show customer reviews on websites. - I improved performance in C# application responsible for importing prices from suppliers. The time dropped from 20 minutes to 2 minutes by using dictionaries. - I wrote crawler which checked, in all repositories, used tables and stored procedures. Based on its results, I was able to remove 50 tables (from 250) and 300 stored procedures (from 600). Languages: T-SQL, SQL, C#, JavaScript Other: .NET 3.5, LINQ, ADO.NET, MS SQL 2005, ASP.NET 3.5, jQuery 1.8, TeamCity, Mercurial, SVN, Visual Studio 2010, ReSharper 8, Redgate tools for SQL Server Development, BugNET, YouTRACK Show less



Forcom Sp. z o.o.

• Poland
• Software Development
• 100 - 200 Employee

• Software Developer

  • Nov 2012 - Sep 2013

  I worked on Market3 - application for major retail chains, including cash registers, back office and integration with SAP. - I was responsible for product prices and labels. - I created a module for describing promotions to users. - I made a module for user privileges which were sent to cash registers. - I worked on reports like cashier reckon up and on adding some new functionality to the system and resolving bugs. Languages: C#, PL/SQL Other: .NET 3.5, NHibernate, Spring.Net, Windows Forms, LINQ, Rhino Mocks, nUnit, Oracle 11g, XML, ActiveMQ, NAnt, Jasper Reports, TeamCity, Mercurial, Visual Studio 2012, Resharper 8, Redmine Show less



4Kprojekt

• Poznan, Greater Poland District, Poland

• Software Developer

  • Jul 2011 - Nov 2012

  I worked on Document Factory - application to manage documents like invoices, invoice correction, proforma. Users were able to create accounts, add clients, products and create documents e.g. invoices. A lot of time I spent with ExtJS and JavaScript as I was responsible for the frontend development with backend tasks when needed. Languages: C#, JavaScript Other: .NET 4.0, Entity Framework, LINQ, WCF, ASP.NET MVC, ExtJS, documents rendering with RDLC, SQL Server 2008 R2, TFS, Visual Studio 2012, ReSharper 7, Teamlab, TeamCity www4b was a CMS application. It allowed clients to create their own website with some information about their company. Languages: C# Other: .NET 4.0, Entity Framework, LINQ, WCF, ASP.NET MVC, SQL Server 2008 R2, SVN, Visual Studio 2010, ReSharper 6, TeamCity Show less