Software Engineer (Haskell) - Hydra - IOE: Cardano

Company: Input Output (IOHK)

Location:

Posted: April 11th, 2026

2 weeks ago Be among the first 25 applicants

Who are we?

IOG is a technology company focused on blockchain research and development. We are renowned for our scientific approach to blockchain development, emphasizing peer-reviewed research and formal methods to ensure security, scalability, and sustainability.

Our projects include the Cardano blockchain, as well as other products in decentralized finance (DeFi), governance, and identity management, aiming to advance blockchain and Web3 technology globally.

We invest in the unknown, applying curiosity and a desire for positive change to everything we do. Our products and services are designed for people to be fearless and to be changemakers.

What the role involves:

As a Software Engineer at IO, you will be responsible for writing high-quality code for our products. You will work with cutting-edge research and technology, focusing on market needs. You will collaborate with software architects, product managers, project managers, formal methods specialists, and QA engineers.

You will join the Hydra team, helping to build one of the key Layer 2 technologies in the Cardano ecosystem.

Responsibilities include:

  1. Follow agile software development practices
  2. Work with teams across multiple time zones
  3. Work independently on software development tasks
  4. Review specifications produced by architects and formal methods specialists
  5. Write clean, efficient code that meets acceptance criteria
  6. Commit often and submit small pull requests
  7. Cover code with tests (unit, property, integration)
  8. Review team members' pull requests
  9. Fix bugs in your code and legacy code
  10. Be available for emergency fixes on deployed products
  11. Integrate software components and libraries
  12. Verify and deploy programs and systems
  13. Troubleshoot, debug, and upgrade software
  14. Write code documentation and user manuals
  15. Maintain knowledge of cryptography basics

Minimum requirements:

Are you an IOGer?

If you question the status quo, tinker with ideas, and want to grow, you might be an IOGer. We value curiosity, innovation, and breaking limits.

Benefits:

We value diversity and do not discriminate based on race, religion, gender, or other protected attributes.

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