Principal Software Engineer

Atlas Search; New York (NY); On-site; USD 180,000 - 240,000; Full time

Job summary

Atlas Search in NYC seeks a senior C++ engineer to design, develop, and optimize ultra-low-latency trading components in a global trading and execution environment.

You will lead architecture discussions, mentor engineers, and provide Level 3 production support for distributed systems, while hands-on coding ~80% of time.

Qualifications

• 10+ years of C++ development experience in a Linux environment.
• Deep expertise in low-latency C++, including cache-conscious data structures and the C++ memory model.
• Strong systems-level performance experience with latency optimization and kernel bypass concepts.
• Proven experience building electronic trading, market data, crossing, or execution systems.

Responsibilities

• Design, develop, and optimize critical components across stat-arb, low-latency, and high-touch trading platforms.
• Build systems designed for microsecond-level latency and high-performance execution.
• Partner closely with business analysts and senior stakeholders on architecture, design, and implementation.
• Serve as a technical leader and subject matter expert across the front office.
• Provide Level 3 production support for globally distributed trading systems.
• Mentor and guide a highly technical development team.

Skills

C++ development

Low-latency

Latency optimization

Electronic trading

CI/CD / Agile / SRE

Job description

Senior C++ Engineer – Global Trading & Execution | NYC

We’re looking for an exceptionally talented, hands-on C++ Engineer to join a high-performance Global Trading & Execution technology team in NYC. This is a highly technical role focused on building and optimizing statistical arbitrage and ultra-low-latency execution platforms within a sophisticated trading environment.

You’ll spend roughly 80% of your time hands-on engineering, with the remaining time focused on technical leadership, mentoring, and coordinating a small team of highly skilled developers.

What You’ll Do

• Design, develop, and optimize critical components across stat-arb, low-latency, and high-touch trading platforms
• Build systems designed for microsecond-level latency and high-performance execution
• Partner closely with business analysts and senior stakeholders on architecture, design, and implementation
• Serve as a technical leader and subject matter expert across the front office
• Provide Level 3 production support for globally distributed trading systems
• Mentor and guide a highly technical development team

What We’re Looking For

• 10+ years of C++ development experience in a Linux environment
• Deep expertise in low-latency C++, including cache-conscious data structures, lock-free programming, and the C++ memory model
• Strong systems-level performance experience with kernel bypass, CPU/core isolation, NUMA, thread/memory placement, and latency optimization
• Proven experience building electronic trading, market data, crossing, or execution systems
• Experience with exchange-native protocols, feed handlers, and co-located trading environments
• Strong architecture and system design capabilities
• Experience leading or mentoring small, highly technical engineering teams
• Excellent communication skills with both technical and non-technical stakeholders
• Familiarity with CI/CD, build automation, Agile development, and SRE methodologies

The Ideal Candidate

You’re someone who thrives in highly technical, fast-moving environments and enjoys solving difficult performance and systems challenges. You bring strong engineering judgment, architectural thinking, and a continuous-improvement mindset — while still being willing to stay close to the code.