Senior .NET Software Developer [FinTech]

Senior .NET Software Developer [FinTech]

We are a software development outsourcing company, and we are looking for an experienced .NET Developer! We are focused on FinTech, RegTech, and Industry 4.0 – you will be focused on clients. CSHARK is a software development partner in every sense – we write code and act as an IT consultant.

We are looking for a Software Developer familiar with coding in C# and .NET. The role will suit you if you have a passion for backend and are open to work in frontend development if needed. You will be familiar with the full SDLC process and comfortable working in a dynamic, fast-changing environment.

Senior .NET Developer will be involved in the full project life cycle developing a product which is resold to multiple financial clients. You will be involved in the analysis, design, development, testing, and documentation of software projects.

The most important of all is your career development. The next generation of talent will fuel Fenergo's success. This is why we actively seek the best and the brightest minds to join us. Launch your career with an opportunity that connects you to a strong network, enables you to do your best work and actively supports your career.

Main Responsibilities:

  • Developing and maintaining of web enterprise-grade applications based on .NET 4.7, ASP.NET Web API's
  • Prototyping of new functionalities/ new versions of the product according to the client's expectations using C# and Web API 2
  • Adapting the existing solution to customer requirements
  • Implementing unit tests
  • Developing new modules based on existing solutions
  • Responsible for code reviews and ensuring coding standards are followed
  • Managing the deployment of new releases
  • Using GIT as a version control system
  • Work with TFS and Azure DevOps
  • Participating in planning, daily stand-ups and retrospective meetings organize in English
  • Depends on the project - contacting clients in English

You're a perfect fit if you:

  • Have at least 5 years' .NET experience with C#, ASP.NET
  • Have strong expertise with ASP.NET Web API 2, RESTful Web Services
  • Are experience in database design/programming with MS SQL and Oracle
  • Have knowledge about JSON and XML
  • Using WCF Service and REST
  • Have practical experience in the design and development of multi-layer architecture
  • Display English language skills at B2 level
  • Have skills such as good communication within the team, ability to work in a team and effective organization of working time (choosing the right priorities)
  • Speak Polish (C1 level is a minimum)

Nice to have:

  • Design patterns
  • Elasticsearch
  • Ability to optimize SQL queries and analyze database performance (MS SQL and/or ORACLE)
  • HTTPS / SSL protocol and e.g. security certificates
  • Building responsive web pages supporting touch interactions
  • Building public-facing websites which are secure, performant highly scalable and remotely maintainable
  • Experience in the financial services/banking/insurance industry sectors

Are you interested in this job offer?


Some reasons why you would enjoy working with us


International projects
and teams


Relocation and business travel opportunity (Ireland, France, Australia, Canada, USA, Germany, Switzerland, India, etc.)


Flat organizational structure– the Board is at your disposal


Regular team integration events


Internal technical workshops, soft skills training and Mint Slash Meetups, where you can also be a trainer


English lessons


We create and develop a technical blog (you can also participate in it)


You can choose the form of cooperation (B2B, UoP)


Flexible working hours


Remote work - depends on a project


Employee referral bonus between 3 000 and 7 000 PLN


Access to the company’s library

Recruitment process
The right mix of people on board is the key to success. That’s why the recruitment process is very important to us.

or technical interview


interview and company


if you decide to join us :)

Are you interested in this job offer?

Contact Us
If you have questions or need more information
CSHARK recruitment team - Małgorzata Naumowicz
Małgorzata Naumowicz
IT Recruitment Lead
+48 887 733 009
CSHARK recruitment team - Katarzyna Dudek-Suś
Katarzyna Dudek-Suś
IT Recruitment Specialist
+48 887 788 099
CSHARK recruitment team - Monika Burkiewicz
Monika Burkiewicz
IT Recruitment Specialist
+48 887 733 003