HFT C++ Engineer

Fionics; New York (NY); On-site; USD 150,000 - 210,000; Full time

Benefits offered by this job

Real ownership

Small team

Competitive compensation

Job summary

Fionics, a NY-based proprietary HFT firm with ~40 people, seeks a C++ engineer with 3+ years in low-latency systems. You will work on execution engines, market data infrastructure, and performance-focused engineering on live-trading systems.

You'll be part of trading, research, and engineering in the same room, with production deployments in days rather than quarters and a compensation package that is highly competitive for the industry.

Qualifications

• 3+ years of C++ in low-latency systems.
• Experience with live trading or quant environments.
• Proven ability to ship quickly in small teams.

Responsibilities

• Develop execution engines and market data infrastructure.
• Perform full-stack performance engineering on trading systems.
• Deploy code to production in days, not quarters.

Skills

C++

Low-latency

Trading systems

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.