C# .NET Developer
Chopper Trading - Chicago, IL

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Chopper Trading LLC is a privately owned proprietary trading firm headquartered in Chicago’s historic Board of Trade Building with growing offices in New York, London, San Francisco and Washington DC. Our 200+ employees form a strategic blend of Traders, Software Engineers, and Quantitative Analysts that has consistently produced results since our founding in 2002.

One key to this success has been the pledge to hire extremely bright, motivated, and passionate employees who are tasked with developing our proprietary trading applications and implementing these applications in the financial markets. Chopper Trading thrives on innovative ideas and continuously explores new opportunities within the global marketplace.

Just as important as our employees is the technology they use to reach the market quickly and effectively. Our commitment to this technology has propelled Chopper Trading through the global financial crisis to the top of the proprietary trading community and has the rest of the financial world playing catch up.

All of this is a credit to the vision of our executive leadership whose combined experience in trading and technology is unmatched. We participate in one of the most intense and challenging private sector domains in the world and have effectively positioned ourselves for further success over the coming years. In order to continue to excel we need bright, strategic thinkers who will thrive in a high-performance environment. Chopper Trading rewards intelligence, hard work, and commitment while giving each employee the freedom, opportunity, and support to pursue and achieve success.

  • Participate in requirements gathering
  • Design and develop software solutions
  • Code unit tests
  • Maintain existing code


B.Sc. in Computer Science or Engineering or the equivalent work experience

Experience in software development of large, complex, high-performance systems

Experience with Unit testing

Expertise, based on both knowledge and a minimum of 2 years’ experience in the following areas:
  • Software development best practices
  • Design, architecture
  • User Interface
  • Multi-threaded programming
  • .NET 4.0/4.5
  • C#
  • WPF
  • Database
  • SQL
Special consideration will be given to candidates with the following qualifications:
  • Experience with TCP and UDP multicast based messaging
  • Trading industry experience
  • Microsoft Certification such as, MCSD, MCPD, or MCTS
The successful candidate will be a:

Team player with strong communication skills

Quick learner and an independent worker