Full stack Developer- Payments

Employvision Inc.; United States; Remote; USD 120,000 - 170,000; Full time

Job summary

Employvision Inc. is seeking a Senior Full Stack Engineer to build the financial engine powering a double-sided marketplace for trading cards. You will Own real-time payments infrastructure handling large ACH transactions across a growing platform.

The role involves 70% backend work in Python, with React/React Native on the frontend, and collaboration within a small three-engineer payments pod. Remote work available for the USA.

Qualifications

• 3–5+ years of experience in full-stack engineering handling large financial transactions (ACH, real-time payments).
• Experience with real-time payments or large-value ACH processing ($100K+ transactions).
• Backend-heavy full-stack engineering (70%+ backend).
• Familiarity with AI-native development workflow and AI coding tools to accelerate output.

Responsibilities

• Processing thousands of large-value transactions ($100K+) through Stripe and banking integrations.
• Building and maintaining a custom double-entry ledger system for the marketplace.
• Developing new ledgers for future lending and financial products.
• Working 70% backend (Python) with React/React Native on the frontend.
• Collaborating in a small payments pod (3 engineers) on a ticketing basis.

Skills

Real-time payments

Backend heavy

React Native

Tools

Rails

Python

PostgreSQL

AWS

React

TypeScript

Stripe

Job description

Title: Full stack Engineer, Payments

Full-time

Remote- USA

About the Role

We are looking for a Senior Full stack Engineer with 3-5+ years of experience to build the financial engine powering Alt's double-sided marketplace for trading cards. You'll own real-time payments infrastructure processing large ACH transactions across a platform that grew 505% last year — this is not credit card processing, this is moving serious money.

Responsibilities

• Processing thousands of large-value transactions ($100K+) through Stripe and banking partner integrations
• Building and maintaining a custom double-entry ledger system for the marketplace
• Developing new ledgers for future lending and financial products
• Working 70% backend (Python) with React/React Native on the frontend
• Collaborating on a small payments pod (3 engineers total) operating on a ticketing basis

Tech stack:

• Rails
• Python
• Postgres
• AWS
• React
• TypeScript
• React Native
• Stripe

Qualifications

• Seniority: 4+ years of experience in full stack engineering processing large financial transactions (ACH, real- time payments)

Required Skills

• Work experience: Experience with real- time payments or large- value ACH processing ($100K+ transactions)
• Hard skills: AI- native development workflow — actively using AI coding tools (e. g. Claude) to accelerate output
• Baseline: explanation is required if there is any gap in employment
• Work experience: Backend- heavy full stack engineering (70%+ backend)
• Hard skills: Rails
• React frontend; React Native or mobile experience a plus