Demo

C# Developer, Equity Derivatives

Jefferies
New York, NY Full Time
POSTED ON 11/6/2025
AVAILABLE BEFORE 12/5/2025
Job Description

This Front Office development role requires strong skills in ideally C# .NET & C . The successful candidate will be part of a wider global team working on our Derivatives platform on behalf of our growing Derivatives business.

They will have worked on similar platforms in the recent past, and been personally and deeply involved in the build, enhancement and support of complex platforms in a fast-paced front office environment. Whilst part of a team with a supportive business as our partner, they must be able to work independently, and seek input at the appropriate times where necessary. Experience working in Equity Derivatives or a closely related area a definite plus, but the candidate should demonstrate a willingness & ability to learn quickly. You should have experience and understanding of best practice hands on software development across the technology stack.

Key responsibilities:

  • Develop and enhance C# .NET & C front office applications and services adhering to specifications and direction from others.
  • Debugging and maintaining written code
  • Take a functional specification or business ask and design, implement & unit test technical solutions.
  • Communicate and collaborate with trading desk, middle office personnel and peer technology teams.
  • Identifying and handling technical risks and issues.
  • Working in a project team alongside other developers.
  • Participate in code reviews in a structured and collaborative way
  • Providing technical support to stakeholders in the organization.
  • Reporting on project statuses and developments to senior team members.
  • Participating in project meetings with management and other team members.

Qualifications:

  • Recent strong experience in C# .NET & some working knowledge of C .
  • Recent experience working on any RDBMS is essential.
  • Knowledge of Distributed Cache technologies, Apache.Ignite, AWS, Kafka, KDB/q, and Python are strong plus.
  • Relevant experience in capital markets working.
  • Strong knowledge & understanding of financial products– ideally Equity derivatives or a closely related areas.
  • Recent experience in real time or near real time trading systems.
  • Recent experience working on OMS, and/or Risk.
  • Ability to write clean, easy to understand code.
  • Strong problem-solving capabilities.
  • Excellent written and verbal communication skills.
  • Ability to work independently and complete projects with minimal supervision.
  • Sound understanding of coding and development processes.
  • 6 years of working experience in financial software development.
  • Successful candidate is expected to have undergraduate degree level or above with Computer Science background.

Primary Location Full Time Salary Range of $150,000 - $200,000.

About Us

Jefferies Financial Group Inc. (‘‘Jefferies,’’ ‘‘we,’’ ‘‘us’’ or ‘‘our’’) is a U.S.-headquartered global full service, integrated investment banking and securities firm. Our largest subsidiary, Jefferies LLC, a U.S. broker-dealer, was founded in the U.S. in 1962 and our first international operating subsidiary, Jefferies International Limited, a U.K. broker-dealer, was established in the U.K. in 1986. Our strategy focuses on continuing to build out our investment banking effort, enhancing our capital markets businesses and further developing our Leucadia Asset Management alternative asset management platform. We offer deep sector expertise across a full range of products and services in investment banking, equities, fixed income, asset and wealth management in the Americas, Europe and the Middle East and Asia.

At Jefferies, we are committed to building a culture that provides opportunities for all employees regardless of our differences and supports a workforce that is reflective of the communities where we work and live. As a result, we are able to pool our collective insights and intelligence to provide fresh and innovative thinking for our clients.

Jefferies is committed to creating and sustaining a workforce that welcomes individuals from all backgrounds to apply. Our employment decisions are made without regard to race, creed, color, national origin, ancestry, religion, pregnancy, age, medical condition, physical or mental disability, marital status, domestic partner status, sex, sexual orientation, gender, gender identity or expression, veteran or military status, genetic information, reproductive health decisions, or any other factor protected by applicable law. We are committed to hiring the most qualified applicants and complying with all federal, state, and local equal employment opportunity laws. As part of this commitment, Jefferies will extend reasonable accommodations to individuals with disabilities, as required by applicable law.

The salary offered will take into consideration an individual’s experience level and qualifications. In addition to salary, Jefferies Financial Group is proud to offer a comprehensive benefits package to eligible, full-time employees or part-time employees, who are scheduled to work at least 30 hours or more per week, including an annual discretionary incentive and retention bonus, competitive employee benefits, including: medical, dental & vision coverage; 401(k); life, accident, and disability insurance; and wellness programs. Jefferies also offers paid time off packages that include planned time off (e.g., vacation), unplanned time off (e.g., sick leave), and paid holidays, and for full time employees, paid parental leave.

Salary : $150,000 - $200,000

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