C++ Software Engineer

Quantum Search; New York (NY); On-site; USD 180,000 - 250,000; Full time

Job summary

Quantum Search is partnering with a world-class HFT firm to hire exceptional C++ Software Engineers to build and refine ultra-low latency systems. You’ll own performance-critical components near the core business where microseconds matter.

You will build and evolve high-performance C++ systems, analyse bottlenecks, and apply a deep understanding of system and hardware interactions to push latency, throughput, and scalability forward.

Qualifications

• Bachelor’s degree in Computer Science, Engineering or related field.
• Solid C++ experience with recent hands-on development.
• Experience with latency-sensitive or performance-critical systems.
• Strong knowledge of multi-threading, memory management, and CPU architecture.

Responsibilities

• Build and evolve high-performance C++ systems with focus on latency and throughput.
• Analyse and optimise systems by removing bottlenecks.
• Apply understanding of system and hardware interactions to solve low-level challenges.
• Contribute to technical direction with a performance-first mindset.

Skills

C++

Multithreading

Lock-free programming

Memory management

Concurrency

CPU architecture

Latency optimization

Education

Bachelor's degree in CS/Engineering

Job description

We are partnered with a world-class HFT firm looking to hire exceptional C++ Software Engineers to help build and refine ultra-low latency systems, with direct ownership over performance-critical components that sit close to the core of the business where microseconds matter.

Key Responsibilities

• Build and evolve high-performance C++ systems with a focus on latency, throughput, and scalability
• Analyse and optimise systems by identifying and eliminating performance bottlenecks
• Apply a deep understanding of system and hardware interactions to solve low-level engineering challenges
• Contribute to technical direction with a performance-first mindset

Required Experience

• Bachelor’s degree (or higher) in Computer Science, Engineering or related field
• Solid C++ experience is non-negotiable (recent hands-on development required)
• Proven track record working on latency-sensitive or performance-critical systems
• Deep understanding of: multi-threading, lock-free programming, memory management, concurrency, or CPU architecture
• Ability to work in environments where performance is a primary design constraint