Senior C++ Engineer - Core Systems

Fionics; New York (NY); On-site; USD 180,000 - 280,000; Full time

Job summary

Fionics, a crypto-native market maker, seeks a senior C++ engineer to anchor and lead the core systems group in New York. You will set technical standards, influence architecture, and mentor the team while coding daily.

Expect a high-performance, low-latency infrastructure across multiple venues. You will collaborate with peers from top finance firms and shape how critical systems are built and deployed.

Qualifications

• 7 to 12+ years experience in C++ at a tier-1 HFT or prop firm.
• Deep low-latency core systems experience.
• Able to lead and mentor while coding daily.

Responsibilities

• Anchor and lead the core systems group in New York.
• Set technical standards and influence system architecture.
• Mentor teammates and contribute hands-on coding.

Skills

C++

Low-latency

Leadership

Job description

A crypto-native market maker running systematic strategies across dozens of venues, on and off chain. They're hiring a senior C++ engineer to anchor and lead the core systems group in New York. This is the person the rest of engineering looks to.

Why it's worth a look

• A leadership seat on the systems a market maker lives or dies on. You set the technical standard for the core group.
• Real influence. The team is young and strong and needs a senior hand to lead it. You shape how things get built, not just keep them running.
• Heavy investment in high-performance, low-latency infrastructure. Serious engineering across dozens of markets.
• Peers out of top traditional finance firms. Research-first, well capitalised, regulated and maturing fast.

What we're looking for

• 7 to 12+ years in C++ from a tier-1 HFT or prop firm
• Deep low-latency core systems experience
• Someone who leads and mentors while still in the code every day

The bar is high. This is a seat for a top systems engineer who wants to lead.

Comp

Comp is not the constraint for the right person. They can also be patient on notice periods and non-competes.