Fun.xyz Tech Stack

Crypto payments infrastructure for cross-chain checkout

Software Development New York, NY 11–50 employees Founded 2022 Privately Held

Fun.xyz builds payment infrastructure for crypto transactions, operating across Ethereum and Solana with a full-stack focus on SDKs and on-chain settlement. The tech stack—Python, Rust, Solidity, Redshift, Snowflake, dbt, and ML libraries (PyTorch, TensorFlow, scikit-learn)—reveals an infrastructure play heavy on data transformation and statistical modeling, suggesting the company is solving for both transaction reliability and product optimization through data. Active hiring is engineering-forward (7 roles) with emerging data and product functions, paired with projects on API performance, conversion optimization, and smart contract security—a pattern typical of crypto platforms scaling throughput while managing compliance and user experience in parallel.

Tech Stack 18 technologies

Core StackPython Redshift Snowflake Databricks dbt Pandas NumPy scikit-learn PyTorch TensorFlow JavaScript TypeScript React Rust SQL Solidity Ethereum Solana

What Fun.xyz Is Building

◆Challenges

Performance reliability balance
Data-driven strategy improvement
Scalable sdk design
On-chain payment sdk scaling
On-chain payment demands
High-performance low-latency systems
Optimizing data pipelines
Compliance across global user base
Optimizing conversion flows
Aligning product requirements

▲Active Projects

Global scaling tools for on-chain payments
Scalable data models for transaction flows
Data transformation pipeline optimization
Causal inference experiments for product decisions
Sdk software for checkout across web2 and web3
High-performance apis and backend services
Optimizing conversion flows for web3 clients
Establishing product management processes
Smart contract security initiatives
Bug bounty program

Hiring Activity

Accelerating15 roles · 6 in 30d

Department

Engineering

Marketing

Data

Finance

Product

Sales

Seniority

Mid

Lead

Manager

Senior

Company intelligence

Find more companies like Fun.xyz by tech stack, pain points and active projects

Get started free

About Fun.xyz

Fun.xyz is a crypto payments company founded in 2022, headquartered in New York and now hiring in Singapore, signaling international expansion. The product sits at the checkout layer, enabling transactions across multiple blockchains and payment types. The engineering team is building SDKs for both web2 and web3 clients, scalable data pipelines for transaction telemetry, and backend APIs optimized for low-latency settlement. Active projects span smart contract security, global scaling infrastructure, conversion flow optimization, and causal inference experiments—indicating the company is balancing security, performance, and data-driven product iteration as it grows.

HeadquartersNew York, NY

Company Size11–50 employees

Founded2022

Hiring MarketsUnited States, Singapore

Frequently Asked Questions

What programming languages does Fun.xyz use?

Fun.xyz uses Python for backend and data work, JavaScript/TypeScript for frontend (React), Solidity for smart contracts, and Rust for performance-critical systems. Data infrastructure runs on Redshift and Snowflake with dbt for transformation.

What blockchains does Fun.xyz support?

Fun.xyz operates on Ethereum and Solana. The tech stack includes both Ethereum and Solana in active use, and projects focus on global scaling for on-chain payments across multiple chains.