Application Support Engineer

7 days ago

Chicago, Illinois, United States High Trail Full time $140,000 - $170,000 per year

Job Title: Application Support Engineer – Capital Markets (Trading Systems / FIX Protocol)

Location:
Chicago, IL (Onsite – 5 days a week)

Employment Type:
W2

Duration:
12 months (strong potential to extend)

About the Role

We are seeking an experienced Application Support Engineer for a client of ours, with a strong background in Investment Banking (IB) and electronic trading systems. The ideal candidate will support multiple trading platform initiatives within a high-performance, fast-paced financial environment. This position is ideal for someone who thrives in front-office support, understands FIX connectivity, and can ensure seamless system performance for business-critical applications.

Key Responsibilities

  • Provide hands-on production support for trading and order management systems, including FIX connectivity and broker/client onboarding.
  • Monitor, troubleshoot, and resolve real-time issues in trading environments across multiple asset classes.
  • Collaborate closely with development, QA, and infrastructure teams to ensure system stability and performance.
  • Manage message flows and integration points between internal and external systems using RabbitMQ and similar messaging technologies.
  • Perform root-cause analysis for incidents, maintain detailed documentation, and implement preventative measures.
  • Work with SQL databases for data validation, log analysis, and issue diagnosis.
  • Participate in on-call rotation and incident response for production systems.
  • Drive automation and process improvements across existing workflows to optimize performance and uptime.

Required Skills & Experience

  • 5–7 years of experience in Application Support / Production Support within an Investment Banking or Capital Markets environment.
  • Strong experience with FIX Protocol (message structure, connectivity, and troubleshooting).
  • Proficiency in SQL for querying, validation, and debugging issues.
  • Experience with RabbitMQ or other enterprise messaging systems.
  • Solid understanding of trading platforms, order routing, and post-trade processes.
  • Exposure to DevOps tools such as Jenkins, Docker, Kubernetes, and CI/CD pipelines preferred.
  • Strong problem-solving, analytical, and communication skills.
  • Ability to work onsite and collaborate with cross-functional teams in a dynamic environment.

Preferred Background

  • Prior experience supporting trading desks or electronic trading platforms.
  • Knowledge of Linux/Unix, scripting languages (Python, Shell), and monitoring tools (ELK, AppDynamics, etc.).
  • Familiarity with Fidessa, Bloomberg, or other market connectivity systems a plus.

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