Role Overview
We are seeking a technically strong and motivated C# Developer to join the Securities Finance Technology team within Jefferies’ Equities – Prime Services division. You will help design, build, and support strategic trading and servicing systems that power a global Securities Borrowing & Lending (SBL) business. The role involves close collaboration with trading, operations, and technology stakeholders, with opportunities to work across modern cloud-native architecture and high-performance platforms.
Key Responsibilities
Design, develop, and maintain core in-house Securities Borrowing & Lending (SBL) platforms and related services.
Deliver new features and enhancements across server-side and client-side components using C# and .NET (Core/Framework).
Partner with developers, product stakeholders, and users to clarify requirements, prioritize work, and deliver high-impact outcomes.
Build and maintain automated tests (unit/integration) and support UAT/business testing activities.
Participate in code reviews, contribute to engineering standards, and drive continuous improvements in code quality, reliability, and SDLC practices.
Support production systems as needed, including troubleshooting, root-cause analysis, and incident remediation.
Required Qualifications
Strong proficiency in C#, with hands-on experience in .NET Core and/or .NET Framework (server-side and client-side development).
Working knowledge of AWS, including EKS, EC2, S3, SQS, and SNS.
Strong SQL skills; experience with Microsoft SQL Server preferred.
Familiarity with modern engineering tools and workflows, including Kafka, RabbitMQ, Jira, Bitbucket, and Bamboo.
Experience using GitHub Copilot effectively within a development workflow.
Strong communication skills, ownership mindset, and ability to collaborate across teams.
Preferred Qualifications
Prior experience or understanding of Securities Lending / Securities Finance or related products (e.g., Equity Swaps).
Exposure to Java and/or Python.
Familiarity with Airflow, Snowflake, and AWS QuickSight.
What You’ll Bring
Strong problem-solving skills and attention to detail in a production-focused environment.
Ability to work effectively in a global team and deliver under time-sensitive business priorities.
Interest in building resilient, scalable systems for a high-throughput financial platform.
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