Fundraise Up Tech Stack

Donation platform optimizing conversion and recurring giving for nonprofits

Software Development Brooklyn, New York 201–500 employees Founded 2017 Privately Held

Fundraise Up builds a donation platform for nonprofits, with a product-heavy org (69 of 122 active roles) executing aggressive geographic expansion and AI-driven optimization. The tech stack reveals a mature data layer (Kafka, ClickHouse, Airflow, Python ML) paired with modern web frontends (React, Vue, TypeScript), and they're actively shipping A/B testing and donation-amount optimization — core levers for their $50M→$200M+ ARR scaling target. Hiring is accelerating across 11 countries, signaling a transition from single-market to multi-region operations.

Tech Stack 46 technologies

Core StackLooker Tableau Gainsight Node.js NestJS MongoDB Webpack Vue React TypeScript Kafka Redis ClickHouse Elasticsearch Python NumPy Pandas scikit-learn Power BI Metabase Grafana PostgreSQL Apache Airflow Figma RAG OpenAI Zapier ChurnZero Koa Matplotlib+13 more

What Fundraise Up Is Building

◆Challenges

Reducing uncertainty in product decisions
Reducing page load times
Scaling from $50m to $200m+ arr
Supporting a wide range of payment methods
Optimising donation amounts
Scaling revenue to $200m+ arr
Processing millions of donations
Higher conversion rates
Boosting conversion rates
Reducing technical debt

▲Active Projects

A/b testing
Define long-term product strategy for core markets domain
Internationalization of product for uk and europe
Market selection and go-live launch
Data mart design
Product adaptation for local compliance
Data platform architecture
Internal api for donor experience platform
Lab bet portfolio
Optimising donation amounts and upsell offers

Hiring Activity

Accelerating120 roles · 75 in 30d

Department

Product

Engineering

Data

Sales

Design

Ops

Finance

Marketing

Seniority

Senior

Lead

Mid

Director

Manager

Notable leadership hires: Product Lab Director, Chief of Staff, Sales Director, Engineering Team Lead

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About Fundraise Up

Fundraise Up operates a SaaS donation platform for mission-driven organizations, helping nonprofits increase donor conversion, enable modern payment methods, and personalize giving experiences. The company is based in Brooklyn and was founded in 2017. They serve organizations ranging from international NGOs to mid-sized nonprofits across the United States, United Kingdom, and Europe. Current operational focus centers on scaling revenue from $50M to $200M+, handling millions of donation transactions, managing a wide array of payment integrations, and optimizing donor retention through recurring giving and personalization features. Engineering and product teams are distributed across North America, Eastern Europe, and South America.

HeadquartersBrooklyn, New York

Company Size201–500 employees

Founded2017

Hiring MarketsUnited States, Serbia, Cyprus, Poland, Armenia, Turkey, Spain, Georgia

Frequently Asked Questions

What is Fundraise Up's tech stack?

Node.js, React, Vue, TypeScript on the frontend; Kafka, PostgreSQL, ClickHouse, and MongoDB for data infrastructure; Python, NumPy, Pandas, and scikit-learn for analytics; Looker, Tableau, and Grafana for visualization; OpenAI and RAG for AI features.

Where does Fundraise Up hire engineers?

Primarily the United States, but also Serbia, Cyprus, Poland, Armenia, Turkey, Spain, Georgia, Portugal, United Kingdom, and Argentina. 27 active engineering roles as of last report.

What is Fundraise Up working on?

A/B testing infrastructure, internationalization for UK and Europe, data platform architecture, donation-amount optimization, and product localization for compliance. Scaling from $50M to $200M+ ARR is the strategic priority.

How this profile is built

Fundraise Up'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.