Lead Low-Latency C++ Engineer for Core Systems — On-Site NYC

Fionics; New York (NY); On-site; USD 190,000 - 260,000; Full time

Job summary

Fionics in New York, on-site, is seeking a Senior C++ Engineer to lead the core engineering group while remaining hands-on and deeply involved in code and architecture. The role emphasizes ownership of critical systems and performance optimization, working alongside top-tier teams with strong domain experience.

Crypto exposure is not required if the candidate meets the technical bar. The position offers substantial impact, real scope, and a long-term home for a senior engineer who wants to shape

Qualifications

• 7 to 12+ years in low-latency C++ from a top-tier firm.
• Hands-on senior engineer who can lead a core engineering group
• Deep systems and performance background
• No crypto experience required if the technical bar is met

Responsibilities

• Lead the core engineering group while staying hands-on. Real scope, real ownership.
• Not a step away from the code. Drive critical system and performance initiatives as part of the core team.

Skills

Low-latency C++

Leadership

Systems & performance

Job description

Fionics in New York, on-site, is seeking a Senior C++ Engineer to lead the core engineering group while remaining hands-on and deeply involved in code and architecture. The role emphasizes ownership of critical systems and performance optimization, working alongside top-tier teams with strong domain experience.

Crypto exposure is not required if the candidate meets the technical bar. The position offers substantial impact, real scope, and a long-term home for a senior engineer who wants to shape