Remote: Senior Backend Engineer — Fintech Payments & Temporal

Black Dragon Capital; United States; Remote; USD 120,000 - 190,000; Full time

Job summary

DragonPay, a fintech startup for U.S. credit unions, is hiring a Senior Full Stack Engineer with a backend focus. You will design, implement, and operate transaction-processing workflows and platform services using TypeScript, NestJS, PostgreSQL, and Temporal.

You will collaborate with the technical lead to build reliable orchestration, secure REST APIs, and AI-assisted development practices while ensuring correctness, security, and fault tolerance across distributed systems.

Qualifications

• Backend development with TS/Node.js in production.
• Experience with NestJS and durable workflow systems.
• Strong knowledge of distributed systems and data modeling.

Responsibilities

• Design, develop, and maintain back-end applications and services using TypeScript, Node.js, and NestJS.
• Build and maintain durable transaction‑processing workflows using Temporal.
• Develop reliable orchestration across asynchronous operations, internal services, and external systems.
• Design workflows that safely handle retries, timeouts, failures, interruptions, and recovery without duplicating financial transactions.
• Develop automated testing for workflows, failure scenarios, recovery behavior, and service integrations.

Skills

TypeScript

Node.js

NestJS

Distributed systems

PostgreSQL

AWS

REST APIs

Git & CI/CD

AI-assisted development

Problem solving

Tools

Temporal

Docker

Kubernetes

Terraform

React

Job description

DragonPay, a fintech startup for U.S. credit unions, is hiring a Senior Full Stack Engineer with a backend focus. You will design, implement, and operate transaction-processing workflows and platform services using TypeScript, NestJS, PostgreSQL, and Temporal.

You will collaborate with the technical lead to build reliable orchestration, secure REST APIs, and AI-assisted development practices while ensuring correctness, security, and fault tolerance across distributed systems.