Stash Tech Stack

Personal finance app combining investing, banking, and AI-driven product experiences

Financial Services New York 201–500 employees Founded 2015 Privately Held

Stash operates a multi-product personal finance platform (investing, banking, financial guidance) built on React/Node.js/TypeScript with heavy modern ML tooling — adopting Snowflake and Fivetran while building AI-driven experimentation, lifecycle marketing, and engineering agents. Active hiring across product, marketing, and data with director-level roles signals a push to scale personalization and experimentation; internal pain points around conversion metrics and data governance suggest the company is working to deepen engagement and operational maturity in a regulated environment.

Tech Stack 34 technologies

Core StackReact Angular Vue Node.js TypeScript Jest Vite webpack NetSuite Cursor AWS Ruby Go Kubernetes Nginx PostgreSQL Kafka Figma dbt Mixpanel Looker Braze LaunchDarkly Babel GPT Spinnaker AWS SNS AWS SQS VBA

AdoptingSnowflake Fivetran

What Stash Is Building

◆Challenges

Fast-paced regulated environment
Operational process inefficiencies
Financial inequality
Improving conversion metrics
Modernizing ingestion patterns
Data governance

▲Active Projects

In-app product experiences across investing, banking, and financial guidance
High-performance experimentation engine
Measurement and attribution framework
Ai-driven tools and workflows
Evolving core b2b functionality (employer-facing tools, onboarding flows, integrations)
Ai-driven prototyping and logic definition for engineering agents
Iterative product improvements and new capabilities
Ai-driven lifecycle marketing
Structured testing frameworks
Lifecycle infrastructure roadmap

Hiring Activity

Accelerating9 roles · 9 in 30d

Department

Marketing

Product

Data

Design

Ops

Seniority

Senior

Director

Junior

Lead

Mid

Principal

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About Stash

Stash is a personal finance app enabling retail Americans to invest, earn rewards through a branded debit card, and manage banking and retirement accounts. The product spans three core surfaces: investing (robo-advisor Smart Portfolio), banking (deposit and debit offerings), and financial guidance and budgeting tools. The company operates as a 201–500-person organization headquartered in New York, with all hiring concentrated in the United States. Stash operates in a highly regulated environment and partners with external institutions (e.g., Stride Bank for banking services, Mastercard for card issuance) to deliver compliance and payment rail capabilities.

HeadquartersNew York

Company Size201–500 employees

Founded2015

Hiring MarketsUnited States

Frequently Asked Questions

What technology stack does Stash use?

Stash runs React, Angular, and Vue on the frontend; Node.js and Ruby on backend; TypeScript for type safety; Kubernetes for orchestration; PostgreSQL and Kafka for data pipelines; and AWS infrastructure (SNS, SQS). Analytics and BI layers use Mixpanel and Looker.

What is Stash working on?

Active projects include AI-driven product experiences, a high-performance experimentation engine, attribution measurement, lifecycle marketing automation, engineering agents for logic definition, and evolving B2B employer-facing tools and onboarding flows.

How this profile is built

Stash's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →

This is not an official vendor or customer list. It is a technology-adoption signal inferred from public data, intended for B2B research.