Senior Software Engineer

Radley James; New York (NY); On-site; USD 130,000 - 210,000; Full time

Job summary

Radley James in New York seeks an experienced Software Engineer to join a fast-paced engineering team focused on high-performance systems for the trading business.

You will design, develop and optimise distributed, latency-sensitive software in modern C++, collaborating with quantitative researchers, traders and engineers to translate ideas into production systems.

Qualifications

• Strong professional experience developing software in C++.
• Excellent understanding of software engineering fundamentals, data structures and algorithms.
• Experience building performance-critical, concurrent or distributed systems.
• Strong problem-solving and analytical skills.
• Experience working with Linux and modern development tooling.
• A passion for writing clean, efficient and maintainable code.
• The ability to communicate clearly and work effectively in a highly collaborative environment.

Responsibilities

• Design, develop and maintain high-performance software in modern C++.
• Build reliable, scalable systems operating in demanding, real-time environments.
• Profile and optimise code for latency, throughput and efficiency.
• Work closely with quantitative researchers and traders to translate ideas into production systems.
• Investigate complex technical problems and develop robust solutions.
• Contribute to system architecture, engineering practices and technical direction.
• Review code and share knowledge with other engineers.
• Continuously explore new technologies and approaches to improve our systems.

Skills

C++ development

Data structures & algorithms

Performance-critical systems

Problem-solving

Linux development

Clean code

Team communication

Job description

A world-leading trading firm operating at the intersection of technology and financial markets. The success is built on exceptional people, cutting-edge technology and a relentless focus on solving complex problems.

They are looking for an experienced Software Engineer with strong C++ expertise to join the engineering team and help build the high-performance systems that power the trading business.

The Role

As a Software Engineer, you’ll work on challenging technical problems where performance, reliability and scalability matter. You’ll collaborate closely with quantitative researchers, traders and other engineers to design, develop and optimise sophisticated trading infrastructure.

Your work could span everything from ultra-low-latency systems and market connectivity to distributed services, data infrastructure and performance-critical applications.

What You’ll Do

• Design, develop and maintain high-performance software in modern C++
• Build reliable, scalable systems operating in demanding, real-time environments
• Profile and optimise code for latency, throughput and efficiency
• Work closely with quantitative researchers and traders to translate ideas into production systems
• Investigate complex technical problems and develop robust solutions
• Contribute to system architecture, engineering practices and technical direction
• Review code and share knowledge with other engineers
• Continuously explore new technologies and approaches to improve our systems

What We’re Looking For

• Strong professional experience developing software in C++
• Excellent understanding of software engineering fundamentals, data structures and algorithms
• Experience building performance-critical, concurrent or distributed systems
• Strong problem-solving and analytical skills
• Experience working with Linux and modern development tooling
• A passion for writing clean, efficient and maintainable code
• The ability to communicate clearly and work effectively in a highly collaborative environment

Experience in areas such as low-latency systems, networking, operating systems, compilers, distributed systems or financial technology would be advantageous, but is not essential.