Senior .NET Developer

Sofia, Bulgaria

Striving for excellence is in our DNA. Since 1993, we have been helping the world’s leading companies imagine, design, engineer, and deliver software and digital experiences that change the world. We are more than just specialists, we are experts.


Currently, we are looking for a Senior .NET Developer for our Sofia office to make the team even stronger.


  • Work within the strategic architecture of the Market Data Exchange (MDX) Platform: reviewing that architecture and making suggestions for improvements as requirements emerge;
  • Deliver code that meets functional requirements within agreed timelines and adhering to industry and client software standards;
  • Deliver architectural & functional improvements that will have a positive impact on our technology estate & business;
  • Ensure the documentation of detailed business requirements and technical specifications in relation to delivered solutions.


  • Good knowledge of and at least 5 years of experience in .NET development with С#;
  • Experience and very good expertise with MS SQL Server, XML, OO design;
  • Good understanding of object-oriented programming principles;
  • Practical knowledge of design patterns;
  • Development experience in large scale, high volume, multi-threaded and highly distributed systems;
  • Good knowledge of abstract data structures and algorithms;
  • Experience with Visual Studio IDE, commonly used version control systems like SVN/Git;
  • Experience working with quantitative models;
  • Experience and interest with Agile and Test Driven Development methodologies;
  • Analytical mindset and high attention to detail;
  • Excellent investigative and problem-solving abilities;
  • Able to work well individually or as part of a geographically distributed team;
  • Excellent communication skills in English.

Nice to have

  • Work experience on projects with high performance / low Latency aspects;
  • Experience in fixed income and forex trading;
  • Knowledge in Java;
  • Experienced in software performance measurements and improvements;
  • Knowledge in graph theory and experience with graph databases – in particular, JanusGraph;
  • Google Cloud experience (specifically Pub/Sub, GKE and OpenTS);
  • Kubernetes experience is considered an advantage;
  • Terraform experience is a plus.

We offer

  • Personal development program that will allow you to be valued for your strengths;
  • Wide range of professional trainings and workshops;
  • Attractive salary, additional health and dental insurance as well as other social benefits;
  • Broad projects variety and possible mobility between projects over the time;
  • Experience exchange with colleagues around the world;
  • Work-life balance and flexible schedule, team buildings and sport opportunities;
  • Modern office in the Infinity Tower business center;
  • If you are interested in this role please send your CV in English. All applications will be treated as strictly confidential;
  • Only short-listed applicants will be contacted.