How WorkGenius can help you hire
the best Haskell Developer

1. Define your search

Let us know what roles and skills you are looking for. Need help? Our talent expert will support you.

2. Get mateched to our pre-vetted candidates

We will match you to 3-5 candidates.
Availability, skill set and hourly rate are
matched to your requirements.

3. Hire one or more and start working

Once you found your perfect candidate, you can get going – and we take care of the rest.

Need inspiration?

This is what Haskell Developers
have built for other clients

Developed a Web Server Using Yesod

A Haskell developer used Yesod to build a web server. They designed the server’s routes and handlers, wrote Haskell code to implement business logic, and used Yesod’s built-in features such as the routing DSL, the ORM, and the authentication framework to provide a scalable and secure solution. They also used Haskell’s type classes and monads features, such as Functor and IO, to write modular and composable code.

Created a Compiler Using Parsec

A Haskell developer used Parsec to build a compiler. They designed the compiler’s syntax and semantics, wrote Haskell code to implement parsing and interpretation, and used Parsec’s built-in features such as combinators, parsers, and lexers to provide a flexible and expressive solution. They also used Haskell’s type inference and generic programming features, such as type families and data kinds, to write concise and generic code.

Join our network

The best Haskell Freelancers in
the world choose WorkGenius

  • Get access to exclusive roles from established businesses
  • Say goodbye to time-consuming project searches
  • Focus on the actual work and not admin
  • Stop chasing payments and get paid fast

How to hire Haskell Developers? Skills you
should look for when interviewing
a Haskell Developer.

Strong knowledge of functional programming concepts

Haskell is a purely functional language, which means that it emphasizes immutable data structures, higher-order functions, and lazy evaluation. A Haskell developer should be well-versed in these concepts and understand how they apply to software design.

Proficiency in Haskell libraries and frameworks

Haskell has a rich ecosystem of libraries and frameworks that are specifically designed for functional programming. A Haskell developer should be familiar with popular libraries such as lens, QuickCheck, and conduit, as well as frameworks like Yesod and Servant.

Familiarity with category theory

Category theory is a branch of mathematics that has been influential in the development of functional programming languages like Haskell. A Haskell developer should have a basic understanding of category theory concepts such as functors, monads, and applicatives.

Strong problem-solving skills

Haskell is a language that encourages a mathematical approach to problem-solving. A Haskell developer should be able to break down complex problems into smaller, more manageable parts and use functional programming concepts to develop elegant, concise solutions.

Need help finding a Haskell developer?

Talk to one of our 200 industry experts to get you started

Hiring Haskell Developers
with WorkGenius

What is Haskell?
Haskell is a purely functional programming language known for its strong type system, lazy evaluation, and elegant syntax. It was named after the logician Haskell Curry and was first released in 1990. Haskell is based on mathematical principles and provides a powerful type system that helps prevent common programming errors by catching them at compile time. It also supports lazy evaluation, which means that expressions are not evaluated until their results are actually needed, which can improve performance in certain cases. Haskell's syntax is concise and expressive, and it provides advanced features such as type classes, higher-order functions, and monads, which make it easy to write complex programs in a clear and concise way. Haskell has a rich ecosystem of libraries and tools that make it easy to develop a wide range of applications, from web applications to scientific computing. With its focus on functional programming, Haskell has become a popular choice for developers who value correctness, expressiveness, and maintainability in their code.
How can I find the right Haskell developer for my project on WorkGenius?

WorkGenius offers a comprehensive talent-matching system that considers factors like skills, experience, and expertise to connect you with the most suitable Haskell developers for your specific needs. You can also review candidate profiles, portfolios, and ratings to make an informed decision.

What is the typical cost of hiring a Haskell developer through WorkGenius?

The cost of hiring a Haskell developer can vary depending on factors like their experience level, project complexity, and the duration of the project. WorkGenius provides a transparent pricing structure and offers flexible options to accommodate different budgets and project requirements.

Can I hire a Haskell developer for a short-term or one-time project?

Indeed, WorkGenius allows you to engage with Haskell developers for short-term or long-term projects, tailored to your unique requirements. Our platform provides the adaptability to work with freelancers for individual projects or continuous partnerships.

How does WorkGenius ensure the quality of Haskell developers on the platform?

WorkGenius maintains a rigorous vetting process to ensure that only highly skilled and experienced Haskell developers are part of our talent pool. Additionally, we gather client feedback and ratings to continually assess the performance of our freelancers, ensuring you receive top-notch service.

More available developer skills:

Hire .NET Developer | Hire ABAP Developer | Hire Algorithm Developer | Hire Android Developer | Hire Angular Developer | Hire Assembly Developer | Hire AWS Developer | Hire Azure Developer | Hire Big Data Architect | Hire Blockchain Developer | Hire Business Intelligence Developer | Hire C Developer | Hire C# Developer | Hire C++ Developer | Hire ChatGPT Developer | Hire COBOL Developer | Hire Computer Vision Developer | Hire Dart Developer | Hire Demandware Developer | Hire Django Developer | Hire Docker Developer | Hire Elixir Developer | Hire Excel Developer | Hire Firebase Developer | Hire Go (Golang) Developer | Hire GraphQL Developer | Hire Groovy DeveloperHire Ionic Developer | Hire iOS Developer | Hire Java Developer | Hire JavaScript Developer | Hire Jenkins Developer | Hire Julia Developer | Hire Kotlin Developer | Hire Kubernetes Developer | Hire Linux Developer | Hire Lisp Developer | Hire Lua Developer | Hire Machine Learning Engineer | Hire Magento Developer | Hire MATLAB Developer | Hire Meteor Developer | Hire Node.js Developer | Hire Perl Developer | Hire PHP Developer | Hire Prolog Developer | Hire Python Developer | Hire R Developer | Hire Racket Developer | Hire React.js Developer | Hire React Native Developer | Hire Ruby Developer | Hire Rust Developer | Hire Salesforce Developer | Hire Scala Developer | Hire Spring Developer | Hire SQL Developer | Hire Swift Developer | Hire Symfony Developer | Hire Sys Admin | Hire Tableau Developer | Hire TypeScript Developer | Hire Unreal Engine Developer | Hire Windows Developer | Hire WordPress Developer | Hire Xamarin Developer

What is Haskell? A comprehensive overview

In the world of programming languages, Haskell stands out among its peers due to its unique features and innovative concepts. Developed in 1987 by a group of computer scientists, Haskell has gained a lot of popularity in recent years. In this comprehensive overview, we will discuss the fundamental aspects of Haskell and how it has become one of the most popular languages in the modern tech industry.

Understanding the Basics of Haskell

Haskell is a statically typed, purely functional programming language that is based on the lambda calculus. Unlike most programming languages that are designed to be imperative or object-oriented, Haskell is geared towards functional programming. This means that it emphasizes immutable data structures, higher-order functions, and lazy evaluation. With Haskell, you write code that is more declarative than procedural. The language itself is open-source and has been embraced by the developer community due to its concise syntax, simplicity, and expressiveness.

One of the key benefits of functional programming is the ability to use higher-order functions. Higher-order functions are functions that take one or more functions as arguments and/or return a function as its result. This allows for more flexibility and modularity in your code. For example, you can create a function that takes a list of numbers and a function that performs a mathematical operation on those numbers, and then apply that function to the list of numbers.

In Haskell, everything is expressed as a function. This is based on the idea that code can be seen as a mathematical equation, where the input values are the method’s arguments, and the output is the result of the computation. These functions can be combined together to form more complex functions. While this may sound complicated, the functional programming paradigm of Haskell allows for code that is more reusable, maintainable, and modular.

Another important feature of Haskell is its emphasis on lazy evaluation. Lazy evaluation means that expressions are only evaluated when they are needed. This can lead to more efficient code, as expressions that are never used are never evaluated. This can also lead to more concise code, as you can create infinite data structures without worrying about running out of memory.

Overall, Haskell is a powerful and expressive programming language that is well-suited for functional programming. Its emphasis on higher-order functions, lazy evaluation, and immutability make it a great choice for building complex and maintainable software applications.

Exploring the Benefits of Haskell

Haskell is a popular functional programming language that offers a variety of benefits to developers. In this article, we will explore some of the key advantages of using Haskell, including its emphasis on correctness, safety, and modularity.


One of the most significant advantages of Haskell is its emphasis on correctness. The language’s type system enforces correctness at compile-time, which means that any potential errors are caught early in the development cycle. This leads to more robust and reliable software that is less prone to bugs and errors.

Furthermore, Haskell’s type system is incredibly powerful and expressive, allowing developers to create complex data structures and algorithms with ease. This can lead to more efficient and elegant code that is easier to understand and maintain.


Haskell’s focus on safety is due to its immutability. This means that once a value is assigned, it cannot be changed. This reduces the risk of side effects and makes the program more predictable. Additionally, Haskell’s type system also prevents null references, which are a significant source of errors in other programming languages.

By eliminating the possibility of runtime errors and null references, Haskell provides a safer and more reliable programming environment. This can be particularly beneficial for applications that require high levels of security or that handle sensitive data.


Finally, Haskell’s modular design means that code can be broken up into smaller, reusable parts. This results in more maintainable and scalable software that is easier to manage and update.

Modularity is a crucial aspect of software development, as it allows developers to create code that can be easily tested and maintained. By breaking code up into smaller, more manageable pieces, developers can reduce the risk of bugs and errors and make it easier to add new features or functionality to an application.

In conclusion, Haskell is a powerful and versatile programming language that offers a variety of benefits to developers. Its emphasis on correctness, safety, and modularity can lead to more efficient, reliable, and maintainable code, making it an excellent choice for a wide range of applications.

Haskell Components and Architecture

The architecture of Haskell consists of the following components:

  • Standard Libraries: The core set of libraries that come with the language are available to all users. They include features like concurrency, I/O, and data manipulation.
  • Glasgow Haskell Compiler: GHC is the most widely used Haskell compiler. It translates source code into machine code and also includes an interactive interpreter for testing.
  • Package Management: Haskell has a package management system called Cabal that handles dependency resolution and installation of third-party libraries.
  • IDEs: Several Integrated Development Environments (IDEs) such as VS Code, Emacs, and Atom have plugins that support Haskell development.

In terms of its architecture, Haskell uses a modular approach to software design. Modules in Haskell organize code into related functions, types, and variables. Each module specifies what information is publicly exposed and what is kept private. This approach makes it easy to organize software into reusable components and promotes code reuse.

One of the key advantages of Haskell’s modular approach is that it makes it easier to manage large codebases. By breaking code into smaller, more manageable modules, developers can more easily reason about the behavior of their software and make changes to specific parts of the codebase without affecting the rest of the system.

Haskell’s type system is also a key component of its architecture. The type system helps to ensure that Haskell programs are correct at compile time, rather than at runtime. This means that many common programming errors, such as null pointer exceptions or type mismatches, are caught before the program is even run. This can save developers a lot of time and effort in debugging and testing their code.

Another important aspect of Haskell’s architecture is its support for functional programming. Functional programming is a programming paradigm that emphasizes the use of functions to perform computations. In Haskell, functions are first-class citizens, which means that they can be passed as arguments to other functions, returned as values, and stored in data structures. This makes it easy to write modular, composable code that can be reused in different contexts.

Finally, Haskell’s architecture is designed to promote code reuse and modularity. Haskell’s package management system, Cabal, makes it easy to share code between projects and to reuse existing libraries in new projects. This helps to reduce code duplication and makes it easier to write high-quality software in less time.

Latest Trends in Haskell

As Haskell continues to gain popularity in the modern tech industry, new trends and paradigms continue to emerge. Let’s take a closer look at some of the latest trends in Haskell:

Big Data and Machine Learning

As the amount of data being generated continues to grow exponentially, the need for efficient data analysis and modeling becomes increasingly important. Haskell’s combination of mathematical rigor and functional programming makes it an ideal language for data analysis and model building. Its strong type system and lazy evaluation make it easy to reason about complex data structures, and its functional purity ensures that data transformations are side-effect free and composable.

In addition, Haskell’s support for parallelism and concurrency allows for efficient computation of large data sets. This makes it a great fit for machine learning applications, where the ability to process large amounts of data quickly is essential.

Blockchain and Cryptocurrency Development

The rise of blockchain technology and cryptocurrencies has led to an increased interest in Haskell for building secure and decentralized applications. Haskell’s robustness and immutability make it well-suited for building applications that require high levels of security and fault tolerance.

Furthermore, Haskell’s type system and static analysis tools can help catch errors early in the development process, reducing the risk of bugs or vulnerabilities in the final product. This is especially important in the context of blockchain and cryptocurrency development, where security is paramount.

High-Performance Computing

Haskell’s potential for parallelism and concurrency has also led to its use in high-performance computing applications. Its lazy evaluation and immutable data structures make it an efficient language for parallel execution, reducing the time and resources required for complex computations.

In addition, Haskell’s strong type system and purity make it easy to reason about complex algorithms, which can lead to more efficient and optimized code. This makes it a great fit for scientific computing and other applications that require high levels of performance.

In conclusion, Haskell’s unique combination of mathematical rigor, functional programming, and strong type system make it a versatile language that is well-suited for a wide range of applications. As the tech industry continues to evolve, it will be exciting to see how Haskell continues to adapt and grow to meet new challenges and opportunities.