Job description

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