Senior C# .NET Developer

Development & Operations · Warszawa, mazowieckie
Department Development & Operations
Employment Type Contractor
Minimum Experience Experienced

FARA is a leading supplier of IT solutions to the public transport sector. We deliver solutions and products providing real-time information to efficiently solve the different needs of the stakeholders in the sector. Our intelligent and easy-to-use systems contribute to a more efficient transit service, increased quality and better safety.

FARA is facing strong international expansion with new products and features, and we are seeking highly motivated

Senior C# .NET Developer

In our team, we deal with a system responsible for collecting real-time data from public transport vehicles and providing this information to passengers and system operators.

We are looking for someone who:

  • wants to be part of a team that creates solutions that collect and display data in real time
  • likes to face performance problems
  • likes to design and implement new components / services
  • is not afraid of working with project documentation (acquiring knowledge about requirements)
  • cares about the quality of the solution provided, like implements functionality and valuable unit tests
  • understand that maintaining existing products and fixing errors is just as important as making new software
  • likes to automate manual work (automatic building and running unit tests, automation of integration tests, tools supporting manual tests)
  • likes teamwork, and can solve problems on their own
  • is independent and can carry out entrusted tasks while keeping in mind to:
  • use the recommended technologies
  • design a solution that can be easily divided among other developers if needed
  • discuss the architecture / problems / requirements with the team if needed
  • implement and test completed functionalities before submitting to integration tests
  • is willingly to acquire new competence (learn new technologies, libraries)


  • C# .NET 4.5+
  • Minimum 6 years of commercial experience
  • Experience in developing and maintaining Web Services/Windows Services
  • Experience in writing useful unit tests (Nunit)
  • Experience with system optimization, microservices, application scalability and reducing technical debt 
  • Ability to write complex SQL queries (nice to know MS SQL)
  • Experience in work with Visual Studio
  • Good knowledge about GIT or SVN
  • Ability of designing new components/services, which will be easy to develop, test and maintenance in the future)
  • Bachelor’s / Master’s degree in Computer Science or equivalent experience
  • Good English skills, we use English on a daily basis

Nice to have:

  • .NET Core
  • Databases: MS SQL, Redis
  • Backend technologies: Masstransit (RabbitMQ), ReactiveExtensions, Topshelf, Entity Framework, WebAPI, WebSockets
  • Frontend technologies: AngularJS, HTML5, CSS
  • Tools: Jira, Bamboo, Confluence, Crucible, Resharper
  • Other: machine learning

We offer:

  • Positive and friendly working environment
  • Flexible working hours
  • Cooperation with International Team
  • Professional and personal development in a fast growing company
  • Competitive terms and conditions
  • And much more:


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  • Location
    Warszawa, mazowieckie
  • Department
    Development & Operations
  • Employment Type
  • Minimum Experience