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Platform Engineer

New York, Miami, Zurich

Job Description
Role Overview:
Citadel Securities is seeking an exceptional Platform Engineer to join our Research Platform Engineering team in Miami, Zurich or New York. Our Research Platform teams are at the forefront of designing and developing the distributed systems, data platforms, and research infrastructure that power large-scale simulations, analytics, and model development across the firm. These systems are critical in allowing researchers to transform data into actionable insights and alpha-generating trading strategies.
Opportunities may be available from time to time in any location in which the business is based for suitable candidates. If you are interested in a career with Citadel, please share your details and we will contact you if there is a vacancy available.
Responsibilities:
Design and build distributed platforms and services that support quantitative research, simulations, AI-powered applications, and large-scale analytics workflows
Develop scalable platform services and data systems for ingestion, transformation, storage, and lifecycle management of large datasets
Build and maintain backend services, APIs, and SDKs that improve researcher productivity and self-service capabilities
Improve performance, reliability, and scalability of critical research systems operating in high-throughput environments
Collaborate closely with researchers and engineers to translate research requirements into production-read systems
Qualifications:
Bachelor’s degree in Computer Science or a related field
3+ years of professional software engineering experience
Strong programming skills in Python, Go, or C++, or similar systems-oriented languages
Experience building and operating distributed systems in production environments
Experience designing scalable backend services, APIs, and data-intensive applications
Strong understanding of distributed systems, data-intensive applications, and system design fundamentals
Experience with cloud platforms (AWS, GCP, Azure) and modern infrastructure technologies
Experience with technologies such as Kafka, Kubernetes, Spark, Airflow, distributed databases, or similar systems is a plus


In accordance with applicable law, the base salary range for this role is $175,000 to $350,000.

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.

About Citadel Securities

Citadel Securities is a technology-driven, next-generation global market maker. We provide institutional and retail investors with world-class liquidity, competitive pricing and seamless front-to-back execution in a broad array of financial products. Our teams of engineers, traders and researchers harness leading-edge quantitative research and the accelerating power of compute, machine learning and AI to power our analytics and tackle the market’s and our clients’ most critical challenges. Together, we are forging the future of capital markets. For more information, visit citadelsecurities.com.

About Citadel Securities

Citadel Securities is a technology-driven, next-generation global market maker. We provide institutional and retail investors with world-class liquidity, competitive pricing and seamless front-to-back execution in a broad array of financial products. Our teams of engineers, traders and researchers harness leading-edge quantitative research and the accelerating power of compute, machine learning and AI to power our analytics and tackle the market’s and our clients’ most critical challenges. Together, we are forging the future of capital markets. For more information, visit citadelsecurities.com.

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Citadel Securities is an equal opportunity employer. We provide all individuals consideration for employment and advancement opportunities without regard to race, religion, color, gender, pregnancy, national origin, age, disability, military or veteran status, sexual orientation, genetic information and any other classification protected by applicable federal, state and local laws.
