DeFi Core Systems Engineer — Trader/Dev Path (London)

Company: Fionics
Apply for the DeFi Core Systems Engineer — Trader/Dev Path (London)
Location: London
Job Description:

Fionics seeks DeFi Software Engineers to build and ship production systems powering live DeFi trading in London. The team is small, technical, and highly capable, offering a path toward trader/developer hybrid roles. This is an on-site role with no remote options.

You will own your work end-to-end within a lean engineering team, solving high-performance problems in a fast-moving market. Candidates with production systems experience in fintech are especially welcome.

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Posted: October 24th, 2026