pjsen.eu

Przemyslaw Seneczko

PJSEN Consulting

Welcome to my personal web page. I am professional software developer based in Warsaw, Poland. I hold both Bachelor's of Science and Master's of Science degrees in Computer Science (Institute of Computer Science), from Faculty of Electronics and Information Technology, Warsaw University of Technology.

I have more than 10 years of commercial experience in designing, maintaining and deploying medium sized and large sized systems written in the C# language, running on top of the Microsoft .NET:

• ASP.NET and ASP.NET Core applications using REST communication (Web API)
• SPA architecture applications developed with TypeScript language and using Angular and React frameworks
• Data access layers implemented with Entity Framework, LINQ and Microsoft SQL Server
• Micro-service based and modular monolith architectures applications
• Asynchronous communication between components of a distributed system implemented with RabbitMQ and MassTransit
• Usage of popular developer tools such as: Visual Studio, Visual Studio Code, GIT, JIRA/Confluence, BitBucket, Azure DevOps, Microsoft Azure public cloud
• Architecture of IT systems, modelling of business subdomains boundaries and the Domain Driven Design approach in software engineering
• I am also member of Microsoft Certified Professional program having passed:
  • 70-536 — Microsoft .NET Framework - Application Development Foundation,
  • 70-511 (Technology Specialist) — Windows Applications Development with Microsoft .NET Framework 4. (WPF)

My primary technical interests include:

• object oriented programming in C#, ISO C++, JavaScript, TypeScript, Python languages:
  1. development of web applications based on Microsoft technology stack
  2. development of desktop applications running on Windows
  3. design of scripting tools using PowerShell; Bash shell; Perl, AWK, Python languages
  4. system programming
• operating systems — internals, administration, programming interface
• database systems — designing solutions optimized for custom application requirements
• systems architecture — choosing the most appropriate technical solutions for components of a system and designing communication processes between them. Modelling those solutions having considered business domains boundaries and then mapping into the solution space in actual software

To some extent, I am also interested in:

• application, operating system and network security
• techniques of parallel programming and data access synchronization mechanisms
• kernel mode programming (only Linux kernel so far)
• software engineering, perceived as systematization of software design and programming principles, rather than developement methodologies along with management practices
• methods of software reverse-engineering
• digital electronics and computer architecture

My non-technical fields of interest include:

• being well informed about current affairs in my country and around the world (I'm an enthusiast of Feedly)
• reading — journalism, blogosphere, fiction and literature of manners (disregarding ones, that are weakly related to the real life)
• English language
• finances and economics
• lifehacking and methods of personal development
• sports — I especially try to practice on regular basis: running, cycling, swimming
• philosophy of minimalism

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Contact via email address:

• contactpjsen.eu

Directly from this site, you can visit:

• my technical blog (English),
• web site of my project Simple File Annotator — which is an application, that allows you to easily assign text annotations to any file (legacy).