Functional Programming Recruitment and Jobs in Ireland and Europe

We recruit for RustHaskell, and Scala Engineering job opportunities in Ireland and right across Europe.

Some of the technologies our clients are asking us for are: Scala, Haskell, Rust, Elixir, Erlang, Kotlin, and F#. We also have other functional programming opportunities in Malta through our Maltese office.

Key Tech in Demand in Functional Programming Jobs

Knowledge of functional programming languages is of course essential. While many languages support functional programming to some extent, there are some that are specifically designed around the functional paradigm. Haskell is one of the most well-known purely functional languages, while others like Scala and Clojure blend functional programming with object-oriented concepts. Erlang and its offshoot Elixir are also popular in domains like concurrent and distributed systems.

JavaScript, although not a functional language by design, has many features that support functional programming, and understanding these features is in high demand for JavaScript roles. Other languages like Python and Ruby also have functional features and may be used in functional programming roles, depending on the job.

Understanding key principles of functional programming is crucial, including immutability, first-class functions, pure functions, recursion, and functional data structures. Mastery of concepts like higher-order functions, currying, function composition, and monads is often expected.

Knowledge of functional programming frameworks and libraries can also be important. For example, in the JavaScript world, libraries like Ramda or lodash/fp provide functional utilities, while Redux encourages a functional programming style for state management.

Experience with functional reactive programming (FRP) and libraries or frameworks that implement FRP concepts, like ReactiveX (RxJS in JavaScript), can be in demand in roles focused on building responsive user interfaces or handling asynchronous data streams.

Familiarity with type systems and experience with statically typed functional languages like Haskell or Scala can be beneficial. On the other hand, for jobs working with dynamically typed functional languages like Clojure or Elixir, experience with writing tests to ensure correctness might be more important.

Lastly, as with any development role, an understanding of good software design, algorithms, data structures, and problem-solving skills are essential. Familiarity with version control systems like Git, as well as principles of DevOps and CI/CD, can also be important.


What does the Career Journey for Rust, Haskell & Scala Engineers look like?

After gaining a strong understanding of programming fundamentals, aspiring Rust, Haskell, or Scala engineers often begin to learn these languages on their own, through online resources, books, or specialised courses. They start by understanding the syntax, semantics, and unique features of their chosen language—like Rust’s focus on memory safety, Haskell’s pure functional programming model, or Scala’s blend of object-oriented and functional paradigms.

Next, aspiring engineers often get practical experience by building personal projects, contributing to open-source projects, or solving problems on coding challenge websites in their chosen language. They may also seek out internships or entry-level positions that allow them to use these languages.

Once they’ve gained practical experience and demonstrated their expertise, they can move into roles like Rust Developer, Haskell Engineer, or Scala Developer. In these roles, they might work on system-level software, web servers, data processing pipelines, or other applications, depending on the language and the job.

As they gain more experience, they can move into more senior developer roles, where they take on larger parts of the software development process, mentor junior developers, and make architectural decisions. They might also specialise in a particular area, like concurrency, distributed systems, or data science.

Beyond the senior developer role, many engineers move into positions like Team Lead, Tech Lead, or Architect, where they oversee the work of a development team, make high-level technical decisions, and guide the overall direction of projects.

Finally, after many years of experience and proven leadership, some engineers move into executive roles like CTO or Director of Engineering, where they guide the technological strategy of an entire organisation.