Input Output Global (IOHK)

Blockchain / Web3

Overview

Input Output Global (IOHK) is a blockchain research and development company known for its role in developing Cardano, a proof-of-stake blockchain platform. IOHK focuses on peer-reviewed research and decentralized technology to create secure and scalable blockchain solutions.

Key Information

Central Office: Singapore
Founded: 2015

Links

Website Careers portal

Latest Jobs

Principal Software Engineer (Haskell) - Consensus - IOE: Cardano

Principal+

🏠

Remote

Principal Haskell engineer leading architecture and delivery of complex consensus and distributed-system components for blockchain. Deep Haskell, performance debugging, security, testing frameworks, CI/CD, and research-to-production translation.

Haskell

Verified Dec 10, 2025 View listing

Applied Cryptographer - Bitcoin DeFi

Senior+

🏠

Remote

Applied cryptographer building secure Bitcoin-focused DeFi primitives. Work spans signatures, ZK proofs, VRFs, commitments, and accumulators using Rust and Haskell, translating research into production code with performance, auditability, and security at the core.

HaskellRust

Verified Dec 10, 2025 View listing