Senior Fullstack Engineer

A fast-growing marketplace platform is building the financial engine behind its double-sided marketplace and they are hiring a Senior Fullstack Engineer (70% backend) to help own it. You'll be working on real-time payments infrastructure moving large ACH transactions across a platform that grew 500+% last year, backed by leading industry investors. What you'll be doing: 🔹 Processing thousands of large-value transactions ($100K+) via Stripe and banking partner integrations 🔹 Building and maintaining a custom double-entry ledger system 🔹 Developing new ledgers for upcoming lending and financial products 🔹 Working ~70% backend (Python) with React/React Native on the frontend 🔹 Collaborating in a tight-knit payments pod (3 engineers total) What we're looking for: ✅ 4+ years fullstack experience with large financial transactions (ACH, real-time payments) ✅ AI-natice, especially with Claude ✅ Strong Python backend skills; comfortable across React/React Native ✅ Experience with Stripe, Postgres, AWS Details: 💰 c.$180K base + competitive equity + pension +health 🌎 100% remote, must be US-based ✈️ Open to visa transfers (OPT, H1B) 🏢 ~50 employees | Well-funded, backed by top-tier investors There's lot's more to discover! 📩 Interested or know someone who'd be a great fit? Apply here or reach out to me directly — john@treqs.ie