Senior .NET Developer

7083
Senior .NET Developer
Senior .NET Developer
violet-calendar
01.09.2026 – 30.11.2026
experience
5 years
code-editor
Banking and Finance
Hybrid from:
❗️❗️❗️Poland:
Kraków
Job Details
Technical Requirements
Strong proficiency in C# and the .NET ecosystem, including .NET 6 and later versions.
Solid experience working with Microsoft SQL Server.
Good understanding of ASP.NET MVC and Web API development.
Front-end development experience using HTML, CSS, JavaScript, and modern frameworks such as React, Angular, or similar technologies.
Hands-on experience with Git and source control practices.
Strong knowledge of object-oriented programming principles.
Experience developing reusable C# components and libraries.
Familiarity with software design patterns and architectural best practices.
Understanding of scalable application design and development principles.
Experience implementing automated testing frameworks and unit tests.
Knowledge of continuous integration and deployment practices.
Full professional proficiency in English.
Required Technical Skills
C#
●
.NET
●
Microsoft SQL Server
●
JavaScript
●
A/B Testing
●
CSS
●
HTML
●
Git
●
Test Automation
Main Responsibilities
Convert business requirements and user stories into effective application features.
Design, develop, and maintain clean, efficient, reusable, and reliable code.
Ensure high standards of code quality and maintainability.
Optimize application performance, scalability, and responsiveness.
Identify, troubleshoot, and resolve defects, bottlenecks, and technical issues.
Contribute to the ongoing development, testing, and production deployment of .NET-based solutions.
Location Requirements
Location
Hybrid from:
Poland:
Kraków
Other
Important: The client requires work from Kraków office 8 days per month
About the project
IT
Project purpose:
To support the migration from the existing Workforce Management SharePoint platform, we are seeking an experienced Full Stack C# .NET Developer to contribute to the continued enhancement and deployment of ComPass, a new Workforce Management and New Joiner application. In this role, you will be responsible for designing, developing, and maintaining application features while supporting testing, deployment, and production readiness activities. Success in this position requires strong collaboration skills, a problem-solving mindset, attention to quality, and a commitment to delivering robust software solutions.
Recruitment process:
Technical interview with external company (Karat)
1.5-hour technical interview at the end client office
Cultural fit interview
Important:
Please add the candidate’s date of birth to the note, but include ONLY the day and month (e.g. 22.06).
If a candidate successfully completes the recruitment process, they will be required to undergo an identification verification prior to employment. This process will include, but is not limited to, a one-time online inspection of a government-issued photo ID, such as a valid ID card, driver’s license, or passport.
Background check - possible
Important: Client has the right to require MTA (Mandatory Time Away) for up to 10 days per year (usually in December)
Start date: ASAP
End Date: till 30.11.2026 (to be extended)
Location: Specialist needs to work 8 days per month from the end client's office in Kraków.
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