Parafin Tech Stack

Embedded financial infrastructure for marketplace and SaaS platforms

Financial Services San Francisco, California 51–200 employees Founded 2020 Privately Held

Parafin builds embedded lending and capital infrastructure for platforms serving small businesses. The stack (React, TypeScript, Python, Go, SQL on AWS/GCP) supports both consumer-facing financial products and backend capital markets operations. Active adoption of Claude and Cursor suggests the company is integrating AI into underwriting and developer tooling — a directional move toward automating complex compliance and underwriting workflows that currently constrain scaling.

Tech Stack 18 technologies

Core StackReact TypeScript JavaScript Salesforce AWS Python Go Looker Ashby Zendesk Scala Figma SQL Worldpay Mindbody GCP

AdoptingCursor Claude

What Parafin Is Building

◆Challenges

Complexity of capital markets
Small businesses lack access to financial tools
Small businesses lack banking support
Compliance complexity
Underwriting complexity
Underwriting compliance
Maximizing margins
Deploying capital efficiently
Scaling post-sales function
Optimizing cost of capital

▲Active Projects

Partner platform
Merchant platform
Modern banking experience
Observability implementation for user interactions
Frontend performance optimization
Capital markets strategy
Scalable technical gtm function
Proof of concepts for embedded finance
Technical onboarding tools
Launch new financial products from scratch

Hiring Activity

Steady35 roles · 10 in 30d

Department

Engineering

Sales

Design

Finance

Product

Compliance

Data

Executive

Seniority

Senior

Mid

Lead

Staff

Manager

Junior

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About Parafin

Parafin provides financial infrastructure APIs and embedded products for marketplaces, vertical SaaS platforms, and payment processors. Customers integrate Parafin's services to offer capital, spend management, and savings tools to their small business users without building those services in-house. The company operates across three layers: partner integration platforms, merchant-facing experiences, and backend capital markets operations. Founded in 2020 and based in San Francisco, Parafin employs 51–200 people, with engineering representing the largest department and a seniority mix skewed toward mid-to-senior ICs and leads.

HeadquartersSan Francisco, California

Company Size51–200 employees

Founded2020

Hiring MarketsUnited States

Frequently Asked Questions

What tech stack does Parafin use?

Core stack: React, TypeScript, JavaScript, Python, Go, and SQL. Infrastructure: AWS and GCP. Data and analytics: Looker. Payments and integrations: Salesforce, Worldpay. Adopting Claude and Cursor for AI-assisted development.

What is Parafin working on?

Active projects include partner and merchant platforms, modern banking UX, capital markets strategy, embedded finance proof-of-concepts, technical onboarding tools, and frontend performance optimization. Also scaling post-sales function and optimizing cost of capital.