HFT C++ Engineer

Fionics; New York (NY); On-site; USD 180,000 - 230,000; Full time

Benefits offered by this job

Competitive compensation

Job summary

Fionics, a proprietary high-frequency trading firm in New York, is looking for a C++ engineer with 3+ years in low-latency systems. You will work on execution engines and market data infrastructure, delivering live-trading capable software with minimal latency.

Join a small, profitably run team where code ships quickly and ownership is yours from day one, with comp that remains competitive as you grow.

Qualifications

• 3+ years in C++ working with low-latency systems.

Responsibilities

• Develop and optimize execution engines for live trading.
• Build and maintain market data infrastructure for ultra-low latency.
• Perform full-stack performance engineering on systems used for real-time trading.

Skills

C++

Low-latency systems

Live trading experience

Job description

For C++ engineers with 3+ years in low-latency systems at a live HFT or quant shop.

If you're a strong engineer at a big firm, you probably know the pattern:

Inherited systems you can't fundamentally change.

Three layers between your code and production.

A queue of approvals before you can ship.

Comp tied to politics, not output.

This isn't that.

The firm

A proprietary HFT firm in New York. ~40 people. Profitable for over a decade. Built quietly, on purpose. Everything in-house. PnL per person well above industry norm and still growing.

The work

Execution engines, market data infrastructure, full-stack performance engineering on systems that trade live. Trading, research, and engineering in the same room. Your code in production in days, not quarters.

You'll get

Real ownership from day one. A small team with a high bar. Comp highly competitive at every level.