Software Engineer, Crypto Trading Core Team

Fionics; Greater London; On-site; GBP 90,000 - 140,000; Full time

Job summary

Fionics seeks engineers for its core team in London, on-site. You will join a small, high-impact group building production-grade systems for crypto market making, with a clear path to hybrid trader/engineer roles.

Candidates should have 2–4 years of experience, a track record in crypto or top tech, and proficiency in C++, Java, C#, or Rust. A ≤6 month non-compete is expected, and compensation is competitive for the sector.

Qualifications

• 2–4 years of engineering experience.
• Currently at a tier-1 crypto market maker, prop, or systematic shop.
• Shipping to production on technically interesting projects.
• Strong education or work track record.
• Languages: C++, Java, C#, Rust (not Python).
• Non-compete of 6 months or less.

Skills

Engineering exp

C++

Java

Rust

Non-Python

Job description

Fionics seeks engineers for its core team in London, on-site. You will join a small, high-impact group building production-grade systems for crypto market making, with a clear path to hybrid trader/engineer roles.

Candidates should have 2–4 years of experience, a track record in crypto or top tech, and proficiency in C++, Java, C#, or Rust. A ≤6 month non-compete is expected, and compensation is competitive for the sector.