Haskell is a powerful functional programming language. It is known for its purity, strong typing, and lazy evaluation. In recent years, many companies started using Haskell for complex and high-performance systems.
In 2025, the demand for Haskell developers is growing. Several top Haskell companies are actively hiring skilled developers. This article lists the top Haskell companies that are offering exciting job opportunities this year.
1. Jane Street
Jane Street is a global trading firm. It is well known for using functional programming in finance. Haskell plays a major role in their internal systems.
Why work at Jane Street?
- High salaries for developers
- Strong engineering culture
- Opportunity to work on real-world financial problems
Hiring Focus:
- Haskell engineers with problem-solving skills
- Developers with math and finance backgrounds
2. Well-Typed
Well-Typed is a Haskell consultancy company. It helps other companies use Haskell in their products. Their team also contributes to the Haskell ecosystem and tools.
Why work at Well-Typed?
- Work with Haskell experts
- Remote work options are available
- Contributions to open-source projects
Hiring Focus:
- Experienced Haskell developers
- People who enjoy teaching and consulting
3. IOHK (Input Output Hong Kong)
IOHK is a blockchain research and development firm. It is best known for creating the Cardano platform. Cardano’s smart contracts are written in Plutus, a Haskell-based language.
Why work at IOHK?
- Blockchain and crypto projects
- Research-focused work environment
- Remote-first company
Hiring Focus:
- Haskell engineers interested in blockchain
- Formal methods and a security background are a plus
4. Tweag
Tweag is a software innovation lab. It uses functional programming and formal methods in real-world systems. Haskell is one of its core languages.
Why work at Tweag?
- Open-source friendly
- Flexible working hours
- A global team of experts
Hiring Focus:
- Functional programmers
- System design and tool-building skills
5. Mercury
Mercury is a modern banking platform for startups. It uses Haskell in its backend systems. The company is scaling fast and hiring across multiple engineering roles.
Why work at Mercury?
- Fast-growing fintech
- Developer-friendly culture
- Great benefits and team
Hiring Focus:
- Backend developers with Haskell experience
- Interest in fintech and APIs
6. Obsidian Systems
Obsidian Systems builds software using functional programming. They focus on high assurance and financial systems. Haskell is their main development language.
Why work at Obsidian?
- Remote-friendly company
- Strong Haskell engineering team
- Involvement in blockchain and finance
Hiring Focus:
- Functional programmers
- Developers with testing and verification experience
7. Digital Asset
Digital Asset builds Daml, a smart contract language inspired by Haskell. The company works on blockchain solutions for businesses and governments.
Why work at Digital Asset?
- Work with Haskell-like languages
- Exposure to enterprise blockchain projects
- Competitive salary and benefits
Hiring Focus:
- Haskell developers
- Engineers with an interest in distributed systems
8. Standard Chartered Bank (SCB)
SCB uses Haskell in its financial infrastructure. It focuses on building reliable and secure financial systems.
Why work at SCB?
- Enterprise-scale projects
- Global presence
- Support for functional programming adoption
Hiring Focus:
- Haskell developers with a finance interest
- Experience with scalable systems
9. GitHub (via internal tools)
GitHub uses Haskell in some internal projects and tools. These tools help manage infrastructure and development processes.
Why work at GitHub?
- Developer-first culture
- Flexible work policy
- Support for learning and innovation
Hiring Focus:
- Internal tools developers
- Haskell and DevOps knowledge
10. Arista Networks
Arista is a networking company. It uses Haskell for building test and automation frameworks. Haskell is key for their software testing tools.
Why work at Arista?
- Hardware and software integration
- High-performance systems
- Strong tech team
Hiring Focus:
- Automation and tooling experts
- Developers with Haskell and networking knowledge
Why Companies Choose Haskell?
Many Haskell companies prefer Haskell for its safety and expressiveness. It allows for building reliable systems with fewer bugs. Haskell code is easier to test. It also handles concurrency and performance well. For complex domains like finance or blockchain, Haskell is a smart choice.
Benefits of Working at Haskell Companies
Here are a few reasons to join a Haskell company in 2025:
- Higher salaries: Haskell developers earn more due to niche skills
- Remote options: Many companies allow full-remote work
- Challenging projects: You work on secure, scalable systems
- Learning environment: Teams focus on quality and best practices
Working at these companies is rewarding and intellectually engaging.
Skills Required for Haskell Jobs
Most Haskell companies look for:
- Solid understanding of functional programming
- Experience with type systems and pure functions
- Familiarity with tools like Stack, Cabal, and GHC
- Problem-solving and system design skills
Some roles may also require domain-specific knowledge, like blockchain or finance.
How to Get Hired?
Here are simple steps to land a job with a Haskell company:
- Learn Haskell: Use books like Learn You a Haskell
- Build Projects: Create real-world apps or tools
- Contribute to Open Source: Join the Haskell GitHub community
- Create a Portfolio: Share your code and experience
- Apply to Multiple Roles: Start with junior or mid-level jobs
- Prepare for Interviews: Practice system design and coding questions
Networking in Haskell forums and conferences also helps.
Final Thoughts
The demand for Haskell developers is growing in 2025. Top Haskell companies want skilled engineers who write clean and reliable code. If you enjoy functional programming and solving complex problems, Haskell is a great career path. Explore these companies, polish your skills, and apply with confidence. Your dream job in a Haskell-first company could be just one application away.
Read Dive is a leading technology blog focusing on different domains like Blockchain, AI, Chatbot, Fintech, Health Tech, Software Development and Testing. For guest blogging, please feel free to contact at readdive@gmail.com.
