Senior Full-Stack Engineer (+ Equity) at SYSTM

Job Title: Senior Full-Stack Engineer

Company Description: SYSTM - VC-backed fintech building the stablecoin financial OS

Job Description: As the most critical hire of 2026, you will own the technical architecture of a platform revolutionizing cross-border finance. Working directly with a founder from Plutus, you will build the infrastructure for stablecoin payments and an AI‑powered Agentic CFO layer, transitioning the product from early design partners to global scale.

Location: London, UK

Why this role is remarkable:

• Significant equity stake (1–5%) in a pre‑seed startup founded by Jasper Tay, the former Co‑Founder & COO of Plutus with a decade of regulated fintech experience.
• You will be the primary technical leader, making all build‑vs‑buy decisions and shaping the engineering culture from the ground floor as the company closes its funding round.
• Direct exposure to the cutting ed...