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Senior Software Engineer
Citadel Securities
New York, NY
Citadel Securities is seeking a Senior Software Engineer to design and build critical data platforms in a high-performance, time-sensitive en...
Pay not listed Apply Now
2026 Entry Level Software Engineer
BAE Systems
Nashua, NH (+3 others)
You may not always see it, but our technology is embedded everywhere. At BAE Systems our Electronic Systems (ES) Sector engineers develop the...
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O'Reilly Auto Parts
Springfield, MO
O’Reilly Auto Parts has a proven track record of growth and stability. O’Reilly is full of successful career stories and believes in a strong...
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Sr. Software Engineer- IAM
O'Reilly Auto Parts
Springfield, MO
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Software Engineer
Design Catapult, Inc.
Fountain Valley, CA
Design Catapult Inc. is a unique industrial and engineering company located in Fountain Valley, CA. We emphasize in product design and protot...
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Software Engineer in Test/Test Engineer-NO C2C
PDSSOFT INC.
Plano, TX
Software Testing Engineer Location: Plano, Texas Years of Experience: 7-10 Years Responsibilities Design, develop, and execute...
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New York, NY
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Software Engineer - ASL - Open Rank
Georgia Tech Research Institute
Huntsville, AL
The Georgia Tech Research Institute (GTRI) is the nonprofit, applied research division of the Georgia Institute of Technology (Georgia Tech)....
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Software Test Engineer
SAIC
Huntsville, AL
SAIC is seeking a Software Test Engineer in Huntsville, AL. The Network, System Integration and Test Environment (NSITE) is a Government owne...
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Data Team Lead - IT Software Engineer III
State of Idaho
Boise, ID
The Idaho Department of Fish and Game (IDFG) seeks a Data Team Lead – Software Engineer III to join the Idaho Fish and Wildlife Information S...
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Senior Software Engineer

Citadel Securities is seeking a Senior Software Engineer to design and build critical data platforms in a high-performance, time-sensitive environment. This is a hands-on engineering role w...

Pay not listed Apply Now

Citadel Securities is seeking a Senior Software Engineer to design and build critical data platforms in a high-performance, time-sensitive environment. This is a hands-on engineering role with a strong emphasis on development, paired with end-to-end ownership of the systems you create in production. You will work closely with senior business and operational stakeholders to translate urgent, real-world data needs into scalable, reliable, and production-grade software.

What You’ll Do
  • Core Responsibilities (Development-Focused)
    • Design, build, and maintain high-performance data services and platforms with a focus on correctness, scalability, and efficiency
    • Develop Python-based services, libraries, and tooling to support data delivery and operational workflows
    • Architect systems that interact with large-scale databases and distributed data stores
    • Collaborate with engineering teams to improve system architecture, deployment strategies, and production readiness
    • Own systems end-to-end, from initial design through deployment and ongoing production support
  • Reliability & Operations (SRE-Oriented)
    • Ensure the reliability and availability of production systems through monitoring, alerting, and incident response
    • Participate in incident management and rapid-response troubleshooting
    • Improve system resilience through automation, observability, and operational tooling
    • Support Linux-based environments, containerized services, and networking infrastructure
What We’re Looking For
  • Technical Skills
    • Strong software engineering experience with deep expertise in Python
    • Extensive experience working with databases and data-intensive systems
    • Deep understanding of Linux systems and production environments
    • Experience with Kubernetes, containerization, and service networking (e.g., NGINX, load balancing)
    • Familiarity with SRE best practices, including monitoring, alerting, on-call support, and post-incident analysis
  • Experience & Attributes
    • 10+ years of experience building and operating production systems
    • Proven ability to perform under pressure and deliver in time-critical situations
    • Experience working directly with senior stakeholders and business leaders
    • Strong sense of ownership with the ability to drive ambiguous problems to completion
    • Clear and effective communicator, especially during high-stakes or time-sensitive situations
Why Join Us
  • This role offers the opportunity to build impactful, business-critical systems while maintaining full ownership of their performance in production. You’ll operate in an environment that values execution, precision, and reliability—where your work has immediate and visible impact.
About Citadel Securities
  • In accordance with applicable law, the base salary range for this role is $150,000 to $300,000.
  • In addition, the employee who fills this role will be eligible to participate in a discretionary incentive compensation program, as well as a wide array of benefit programs, such as medical and life insurance, retirement and tax-free savings plans, and access to other healthcare programs.
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