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HFT C++ Engineer

Job in Mundelein, Lake County, Illinois, 60060, USA
Listing for: Fionics
Full Time position
Listed on 2026-10-22
Job specializations:
  • Software Development
    Software Engineer, AI Engineer (Applied/Software)
Job Description & How to Apply Below
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.

New York. On-site.

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