Senior C++ Engineer - Low-Latency Trading Systems

Citadel Securities; Zürich; On-site; CHF 150,000 - 230,000; Full time

Job summary

Citadel Securities is seeking driven engineers to join our next-generation trading infrastructure in a role based in our global offices. You will design, build and optimize high-performance systems that power equity and fixed income trading, collaborating with traders, researchers and engineers to push latency and throughput to new levels.

We value curiosity, ownership, and clear communication. A bachelor’s degree in CS/Engineering is required; trading or finance background is a plus.

Qualifications

• Deep experience in C++ with a passion for clean, performant code.
• Strong grasp of multithreading, concurrency, and distributed systems.
• Curiosity to explore how things work and a drive to improve them.
• Clear, thoughtful communication and the ability to thrive in a high ownership environment.
• Bachelor’s (or higher) degree in a Computer Science, Engineering or related field.
• Background in Trading or finance is a plus but not a requirement.

Responsibilities

• Solve What Matters: Break down intricate challenges and deliver clear, elegant solutions that drive real world outcomes
• Build and Scale: Design, build and maintain high performance systems that are the backbone of our trading infrastructure
• Optimize Everything: Continuously push the limits of latency, reliability, and throughput in a distributed environment
• Partner and Deliver: Collaborate directly with traders, researchers, and fellow engineers to deliver ideas into production
• Own it in production: Take pride in running your code live - Monitoring, supporting and improving it every day

Skills

C++

Multithreading

Distributed systems

Code optimization

Communication

Problem solving

Education

Bachelor's degree in CS/Engineering

Job description

Citadel Securities is seeking driven engineers to join our next-generation trading infrastructure in a role based in our global offices. You will design, build and optimize high-performance systems that power equity and fixed income trading, collaborating with traders, researchers and engineers to push latency and throughput to new levels.

We value curiosity, ownership, and clear communication. A bachelor’s degree in CS/Engineering is required; trading or finance background is a plus.