Input Output Group Tech Stack

Blockchain research and engineering for Cardano and multi-chain ecosystems

Software Development Singapore 501–1,000 employees Founded 2015 Privately Held

Input Output Group (IOHK) is a blockchain research and engineering organization built around the Cardano platform, with active development across Ethereum, Solana, and emerging chains. The tech stack—Python, Rust, Go, Solidity, plus Cardano and EVM tooling (Hardhat, Foundry, Truffle)—reflects a multi-chain, infrastructure-heavy engineering culture. Recent adoption of Claude and ChatGPT suggests exploration of AI-assisted code and research workflows, while the project portfolio (dapps, ETL, hackathons, developer onboarding, AI engine) and distributed hiring across five countries signal a company scaling developer relations and education alongside core platform work.

Tech Stack 44 technologies

Core StackPython Terraform AWS AWS RDS Kubernetes PostgreSQL Prometheus Grafana Loki GitHub Actions TypeScript Go Rust GitHub Slack Jira Confluence Bash Nix AWS EKS Hydra Solidity Hardhat Foundry Truffle Discord Cardano Ethereum Virtual Machine Solana Google Drive+12 more

AdoptingClaude ChatGPT

What Input Output Group Is Building

◆Challenges

Developer acquisition and retention
Reducing organizational silos
Scaling ai models
Balancing agility and reporting
Intermediary custody of bitcoin
System reliability
High availability
Improving testing culture
Proactive threat identification
Monitoring online threats

▲Active Projects

Example dapps for midnight
Etl workflow design
Global hackathon program
Developer onboarding documentation
Global hackathon calendar
Sustainable research funding framework
Build club pipeline
Education and content integration
Developer activation funnel
Overmind ai engine

Hiring Activity

Steady30 roles · 8 in 30d

Department

Engineering

Devrel

Security

Marketing

Product

Research

Data

Executive

Seniority

Mid

Senior

Manager

Lead

Notable leadership hires: Go-To-Market Lead

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About Input Output Group

IOHK develops high-assurance blockchain products and platforms, with Cardano as its flagship. The organization operates as a fully remote, decentralized team spanning 50+ countries and 500–1,000 employees, headquartered in Singapore. Core competencies span blockchain research, protocol engineering, smart contract development, and developer education. The company sells to public and private sector clients seeking blockchain infrastructure and consulting. Pain points include developer acquisition and retention, organizational silos, system reliability, and threat monitoring—all typical of rapid growth in decentralized systems.

HeadquartersSingapore

Company Size501–1,000 employees

Founded2015

Hiring MarketsUnited States, Germany, Ireland, Poland, South Africa

Frequently Asked Questions

What is Input Output Group's main product?

IOHK's flagship product is Cardano, a blockchain platform. The company also builds dApps, tools, and infrastructure across multiple chains (Ethereum, Solana) and offers research, development, and consultancy services.

What programming languages does IOHK use?

Primary languages include Python, Rust, Go, and TypeScript. For blockchain-specific work, IOHK uses Solidity, Cardano, and EVM tools like Hardhat and Foundry. Infrastructure relies on Bash, Terraform, Nix, and Kubernetes.