I am a senior software developer with 12 years of experience in the Microsoft technology stack, delivering full-stack solutions for international clients across aviation, education, e-commerce, healthcare and sales. I design, develop and maintain robust applications, focusing on quality, performance and maintainability, while prototyping ideas and reducing technical debt. I spent 17 months in the USA as part of an AIESEC internship and I’m fluent in English, comfortable working in global teams. I continually explore modern technologies such as Azure, .NET Core and NoSQL to stay ahead of the curve, and I enjoy learning and sharing knowledge with colleagues.

Marcin Wasik

I am a senior software developer with 12 years of experience in the Microsoft technology stack, delivering full-stack solutions for international clients across aviation, education, e-commerce, healthcare and sales. I design, develop and maintain robust applications, focusing on quality, performance and maintainability, while prototyping ideas and reducing technical debt. I spent 17 months in the USA as part of an AIESEC internship and I’m fluent in English, comfortable working in global teams. I continually explore modern technologies such as Azure, .NET Core and NoSQL to stay ahead of the curve, and I enjoy learning and sharing knowledge with colleagues.

Available to hire

I am a senior software developer with 12 years of experience in the Microsoft technology stack, delivering full-stack solutions for international clients across aviation, education, e-commerce, healthcare and sales. I design, develop and maintain robust applications, focusing on quality, performance and maintainability, while prototyping ideas and reducing technical debt.

I spent 17 months in the USA as part of an AIESEC internship and I’m fluent in English, comfortable working in global teams. I continually explore modern technologies such as Azure, .NET Core and NoSQL to stay ahead of the curve, and I enjoy learning and sharing knowledge with colleagues.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate

Language

English
Advanced
German
Intermediate
Polish
Fluent

Work Experience

Senior .NET Developer at Exadel / Codete
September 1, 2018 - Present
Maintenance of a CRM system for retail sellers of building security systems; Windows desktop application + web platform; optimization and refactoring to reduce technical debt; prototyping new ideas; writing unit and integration tests; bug fixing.
.NET Developer at ITMagination
August 31, 2018 - October 16, 2025
Internal applications support; backend code for multiple web applications; designing APIs for multipurpose websites; unit and integration tests; bug fixing.
.NET Developer at ABB
April 30, 2017 - October 16, 2025
Internal applications support; backend code for various web applications; API design for multipurpose websites; bug fixing; contributed to a global program for career development and certification.
Junior .NET Developer at Trustee / Mansourcing Sp. z o.o.
August 31, 2015 - October 16, 2025
Luxmed CRM; internal applications support; backend API development; involved in multi-project web solutions; environment included ASP.NET MVC, NHibernate, Entity Framework, and SQL Server.
Intern .NET Developer at ScheduleSoft
May 1, 2012 - October 16, 2025
Workforce management software; internal applications support; backend code development; USA internship in Madison, WI.
Intern .NET Developer at ASTOR Sp. z o.o.
September 1, 2006 - October 16, 2025
Workforce management software; implemented minor functionalities for the company CRM (e.g., document collaboration, MMC console).

Education

Master of Computer Science at The Jagiellonian University
January 1, 2003 - January 1, 2008
Master of Economy at Cracow University of Economics
January 1, 2005 - January 1, 2010

Qualifications

AZ-900: Microsoft Azure Fundamentals
January 1, 2023 - October 16, 2025
Modern architecture of web applications – Microservices, REST, noSQL
January 1, 2016 - October 16, 2025
Project patterns in ASP.NET
January 1, 2016 - October 16, 2025
Advanced programming in .NET Framework 4.5
January 1, 2015 - October 16, 2025
SQL Server for programmers
January 1, 2014 - October 16, 2025
Machine Learning / Introduction to Artificial Intelligence / Databases (Stanford Online)
January 1, 2012 - October 16, 2025

Industry Experience

Software & Internet, Education, Healthcare, Professional Services, Retail

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate