Stash Tech Stack

Personal finance app with investing, banking, and rewards for everyday Americans

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

Stash operates a full-stack personal finance platform combining investing, banking, and debit-card rewards, serving over a million users. The tech stack reveals dual engineering priorities: a modern frontend layer (React, Angular, Vue, Node.js, TypeScript) built for consumer acquisition funnels, paired with compliance-heavy infrastructure (Kafka, PostgreSQL, AWS SNS/SQS) for transaction monitoring and AML controls. Active hiring skews toward compliance and engineering roles, while the project backlog shows simultaneous pushes on growth (A/B testing, load-time optimization) and regulatory foundations (AML strategy, SAR governance), suggesting the company is scaling user volume while fortifying operational controls.

Tech Stack 34 technologies

Core StackReact Angular Vue Node.js TypeScript Jest Vite webpack NetSuite Cursor AWS Ruby Go Kubernetes Nginx PostgreSQL Kafka Figma HTML CSS LaunchDarkly Babel Git GPT Spinnaker AWS SNS AWS SQS Claude Excel SQL VBA

What Stash Is Building

◆Challenges

Scaling fast
High-stakes challenges
Shortening close cycle
Improving month-end close
Scaling financial operations
Scaling aml framework
Transitioning to ai-first culture
Scaling platform capabilities
Expanding employer footprint
Financial stress on productivity

▲Active Projects

Critical growth funnels
A/b tests
Optimizing load times
Aml strategy and roadmap
Transaction monitoring and sar governance
Aml controls design for new products
B2b product development
Platform scaling
Evolving core b2b functionality
Scaling product capabilities

Hiring Activity

Accelerating10 roles · 7 in 30d

Department

Engineering

Marketing

Compliance

Finance

Ops

Product

Seniority

Senior

Director

Junior

Lead

Mid

Notable leadership hires: Creative Director

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About Stash

Stash is a consumer-focused fintech platform headquartered in New York, serving everyday investors with integrated budgeting, fractional stock investing, and a debit card offering Stock-Back rewards. The product spans three core surfaces: personal investing (robo-advisor portfolio management), banking services (through Stride Bank), and spending rewards (5% stock rewards on qualified purchases, capped at $10/month). The company operates at the intersection of growth-stage consumer acquisition and regulated financial services, managing transaction monitoring, AML compliance, and month-end accounting across a 201–500-person organization. Stash was founded in 2015 and is privately held.

HeadquartersNew York

Company Size201–500 employees

Founded2015

Hiring MarketsUnited States

Frequently Asked Questions

What tech stack does Stash use?

Frontend: React, Angular, Vue, Node.js, TypeScript, Jest, Vite, Webpack. Backend: Ruby, Go, PostgreSQL, Kafka, AWS (SNS, SQS), Kubernetes. Infrastructure: Spinnaker, Nginx. Observability and tooling: LaunchDarkly, Figma, GPT, Claude.

What is Stash working on?

Growth-side: A/B testing, load-time optimization, and critical funnel improvements. Compliance-side: AML strategy and framework scaling, transaction monitoring, SAR governance, and AML controls for new products. Product: B2B product development and platform scaling.