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# Full Stack Engineer

- **Company:** Milestone Technologies, Inc.
- **Location:** United States (Remote available)
- **Experience:** Expert
- **Salary:** $156,000.0
- **Contract:** Permanent contract
- **Skills:** Django Web Framework, Python (Programming Language), Data Streaming, File Transfer Protocol (FTP), Backend, Kotlin, Stripe, Codebase, Domain Driven Design
- **Published:** June 5, 2026
- **Apply:** https://www.dice.com/job-detail/a0dc9c67-2146-442f-957e-25c94cc8a1a4

## About the Role

We are seeking an experienced Senior Full Stack Engineer with deep expertise in Stripe payments, subscription billing, and ledger reconciliation to join our fintech-focused team. The ideal candidate will be highly skilled in Django and Domain-Driven Design (DDD) patterns, capable of independently managing ops-critical reconciliation tasks, and excited about building robust systems that directly impact financial product operations. Familiarity with card issuing workflows, fraud signal integration, and mobile payment technologies is a strong plus., * Proficient in Django and Python, with firm grasp of Domain-Driven Design (DDD) patterns and modular codebases.

 * Senior level full stack engineering experience with strong practical knowledge of Stripe as the primary payment processor.
 * Production experience with subscription billing and ledger systems, especially in fintech environments (strong preference).
 * Proven ability to independently manage and own ops-critical reconciliation and financial workflows.
 * Working knowledge of Lithic and CFSB card issuing platforms; familiarity with Lion Card for physical cards preferred.
 * Experience with Sardine or similar fraud signal integrations and SFTP data flows.
 * Comfortable navigating complex backend modular architecture

Tech Stack

 * Django and Python; Stripe as primary processor; Lithic and CFSB for card issuing; Lion Card for physical cards
 * Sardine for fraud signals, SFTP integration in flight
 * DDD-style layout in backend

Preferred Skills

 * Fintech experience strongly preferred
 * Familiarity with virtual card mechanics and touch-to-pay technologies.
 * Experience with Swift or Kotlin for mobile payment and card management applications.

## Description

* Own and execute ledger reconciliation processes, including syncing Lithic, CFSB, and Checkout invoices against internal ledgers.
 * Implement per-user lifetime value (LTV) tracking and risk metrics within the ledger system.
 * Complete Sardine integration by developing penalty box rules for fraud signals such as burst card creation and auto-debit disablement.
 * Finalize and rollout the deposit attribution feature including dashboard views and client UI behind a feature flag.
 * Provide engineering support for Magnitude physical card delivery ahead of critical early June milestones.
 * Prepare clear handoff documentation to support smooth knowledge transfer for upcoming team transitions.


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