51 to 75 of 119 Functional Programming Jobs in London

globally so we can tackle underserved markets and offer better deals to customers. When joining our team, you'll contribute to a global microservices architecture written in Scala, using functional programming to really provide value to our users. Currently, our microservices communicate via REST API calls, fostering seamless integration between different services. You will actively participate in our More ❯

primitives Solving complex optimisation problems, using machine learning and other often bespoke algorithms Designing and implementing the business logic to expose our functionality via APIs and UI interfaces, using functional programming and serverless computing 8+ years of experience as a Software Engineer Experience in strongly typed languages, such as Typescript, Rust or others Experience working with IoT devices … information with an open mind, willing to reconsider your opinions when presented with compelling evidence You are autonomous and enjoy managing your own workload and deadlines Experience with the functional programming paradigm Experience using AWS, serverless technologies and infrastructure as code Experience with Machine Learning in Python Professional experience in the renewable energy sector, or an interest in More ❯

Requirements: Essential Skills: 5+ years of commercial Java development experience, ideally at senior/lead level Strong full stack Java development skills using the Spring framework Solid experience with functional programming principles and lambda expressions Proficient in SQL and Oracle Database development Desirable Skills: Experience deploying solutions to Microsoft Azure, particularly using Azure DevOps Familiarity with infrastructure as More ❯

and multi-tenant architecture Work closely with Product Management for understanding the business needs and finding appropriate technical solutions Contribute to the definition of the team roadmap Ensure that functional and non-functional requirements (performance, security) are met Collaborate with engineers from different teams to ensure technical excellence of the whole platform Take part in on-call rotation … with the worldwide distributed team) for production systems What you need to succeed: Proven experience as a Backend Engineer developing server-side systems on the JVM Solid understanding of functional programming Solid understanding of parallel and asynchronous programming, as well as non-blocking I/O Experience in developing REST API’s and knowledge of scalable architectures More ❯

Providing occasional 3rd level support for information security enhancements and due diligence responses. Interact with external partners and clients to design solutions Be part of a world class, cross-functional team solving real world problems What you'll need to succeed: Excellent interpersonal skills and stakeholder management are essential Technical experience and up to date knowledge of the modern … complex business problems. Be passionate about solving real-world problems using technology Possess excellent written and verbal communication skills Thrive in dynamic, multi-cultural environments, working both in cross-functional teams and independently Desirable skills, experience and knowledge: Python and Clojure/other functional programming language knowledge and experience Strong project and change management skills Proven experience More ❯

during sales An understanding and appreciation of: Automated testing Cyber-security issues and mitigations Application performance issues and solutions Software design patterns and when to use them Agile, cross-functional and empowered team background Enjoy working with product owners, front-end and devops engineers to create great products Strong communication, critical thinking, creative problem-solving, interpersonal and analytical skills … Passionate about your craft Bonus/additional skills Experience building ecommerce and marketplace products Interest and understanding of functional programming languages, and experience building services with Elixr and Pheonix Cloud infrastructure build and maintenance, especially using IaC and Kubernetes on AWS Computer Science or other relevant degree Becoming part of a passionate and fast-growing company Access to More ❯

responsive and reliable mobile applications that provide our customers a rewarding experience. You'll also play a key technical leadership role, working closely with architects, product managers, and cross-functional teams. You'll have an opportunity to participate in the whole development cycle, using modern technologies, architectures and processes. When you join Mindera we welcome you into a fun … code, taking advantage of software design patterns, architectural patterns and data structures. Nice to have Experience with FRP framework (ReactiveCocoa, RxSwift, etc) Experience with MVVM(-C) architecture Experience with Functional programming/concepts Experience with CI/CD development methodologies and tools (fastlane, Jenkins, Travis, GoCD, etc) Ability/experience testing code and/or writing testable code More ❯

refining user stories, designing solutions, and writing code, as well as helping our support organisation answer the most interesting user questions Work within a diverse technology landscape involving various programming languages (Java, Scala, Python), data management systems, and CI/CD pipelines (Jenkins) What You’ll Bring To The Role Bachelor’s degree in Computer Science, Engineering, or a … related field, or equivalent experience 3+ years of software development experience Interest in functional programming and the Scala language Strong analytical and problem-solving skills Ability to align technology initiatives with business objectives Ability to foster a collaborative team culture Strong communication skills in general Prior experience in developing data or computation-intensive (e.g. grid-based) backend applications More ❯

A degree in Computer Science or a related field 3+ years of experience as a Backend Engineer with strong architectural skills (mid and senior levels in London) Experience with functional programming; familiarity with Elixir is a plus, but other languages like Scala, GoLang, Node.js, Haskell, Clojure, F# are also acceptable Infrastructure management experience at scale, comfortable with AWS More ❯

smoke testing your features in production. You ensure the quality of your code with modern testing, debugging and automation techniques. You have a solid understanding of object-oriented and functional programming paradigms. You proactively identify tech debt and work with your team to get it prioritized. You’re interested in rounding out your data skillset to make yourself More ❯

functions, CTEs, recursion, performance optimization). Good communication, enthusiasm, humility, and eagerness to learn. Ability to thrive in a fast-paced, ambiguous environment. Nice to haves: Advanced Python skills (functional programming, testing). Advanced ML skills (gradient boosting, neural networks). Experience with dbt and Snowflake. Deploying ML models. Experience in consumer credit or lending products. Salary: Dependent More ❯

Senior Backend Engineer) Bachelors or higher in Computer Science or a related field with a strong portfolio of projects. A backend engineer with strong architectural design skills Expertise in functional programming, with working experience using Elixir A strong interest in ML and applying AI to solve problems Infrastructure management experience at scale; you should be comfortable in using More ❯

track record of technical excellence, delivering resilient systems, ideally behind consumer products Desirable Previous experience developing high-performant, high-load frontend applications Experience building & maintaining component libraries Experience with functional programming Proficient with cross-browser testing & compatibility Experience in and enjoyment of early stage/startup environments What’s In It For You ️ Quarterly international team offsite Remote More ❯

or Software Engineering role. Previous professional experience using OLTP and OLAP databases, and dbt. Advanced SQL skills, covering window functions, CTEs, recursion and performance optimisation. Advanced Python skills, covering functional programming and testing. Good communication skills, enthusiasm, humility and a desire to learn. A preference to work in a fast-paced and unstructured environment. Nice to haves: Advanced More ❯

Redis). Good system design skills. We are hiring at all levels of our Engineering Progression framework in London. It would also be great if you have: Experience with functional programming. Familiarity with Elixir is a plus, but other languages like Scala, GoLang, Node.js, Haskell, Clojure, and F# are also great. Infrastructure management experience at scale; ideally you should More ❯

Senior Functional Programmer - Haskell, OCaml, Scala, Linux, F#, Financial Markets, Openshift, Kubernetes I am working with a leading financial services firm who is seeking a Senior Haskell Developer to join a specialist team developing cross-product transactional pricing systems for derivatives. This is a rare opportunity to work with a production-grade Haskell codebase, delivering high-performance backend systems … performance enhancements Collaborate with business analysts and global stakeholders to deliver value-driven solutions Contribute to system architecture and technical direction of the platform Engage in code reviews, pair programming, and continuous improvement initiatives Support production systems and deployment pipelines alongside DevOps teams Mentor junior developers and promote best practices in functional programming Apply financial domain knowledge … in derivatives pricing and risk management Key Skills: Proficient in functional programming (Haskell is preferred, OCaml/Scala also considered) Experience building scalable, high-performance backend/server-side applications Strong understanding of architecture and system design principles Comfortable working in Linux environments and agile development settings Financial markets experience (particularly derivatives) is advantageous MSc or PhD in More ❯

Senior Functional Programmer - Haskell, OCaml, Scala, Linux, F#, Financial Markets, Openshift, Kubernetes I am working with a leading financial services firm who is seeking a Senior Haskell Developer to join a specialist team developing cross-product transactional pricing systems for derivatives. This is a rare opportunity to work with a production-grade Haskell codebase, delivering high-performance backend systems … performance enhancements Collaborate with business analysts and global stakeholders to deliver value-driven solutions Contribute to system architecture and technical direction of the platform Engage in code reviews, pair programming, and continuous improvement initiatives Support production systems and deployment pipelines alongside DevOps teams Mentor junior developers and promote best practices in functional programming Apply financial domain knowledge … in derivatives pricing and risk management Key Skills: Proficient in functional programming (Haskell is preferred, OCaml/Scala also considered) Experience building scalable, high-performance backend/server-side applications Strong understanding of architecture and system design principles Comfortable working in Linux environments and agile development settings Financial markets experience (particularly derivatives) is advantageous MSc or PhD in More ❯

Social network you want to login/join with: Senior Functional Programmer (Haskell), london col-narrow-left Client: Nicoll Curtin Location: london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 26.06.2025 Expiry Date: 10.08.2025 col-wide Job Description: Senior Functional Programmer - Haskell, OCaml, Scala, Linux, F#, Financial Markets, Openshift … performance enhancements Collaborate with business analysts and global stakeholders to deliver value-driven solutions Contribute to system architecture and technical direction of the platform Engage in code reviews, pair programming, and continuous improvement initiatives Support production systems and deployment pipelines alongside DevOps teams Mentor junior developers and promote best practices in functional programming Apply financial domain knowledge … in derivatives pricing and risk management Key Skills: Proficient in functional programming (Haskell is preferred, OCaml/Scala also considered) Experience building scalable, high-performance backend/server-side applications Strong understanding of architecture and system design principles Comfortable working in Linux environments and agile development settings Financial markets experience (particularly derivatives) is advantageous MSc or PhD in More ❯

and efficiency of our platform, by managing the software that is responsible for many critical features. By leveraging a Linux operating system and open-source technologies, the team utilise programming languages that can effectively scale and accommodate the high volume of transactions across the platform. You will develop a team of technical professionals, developing innovative solutions and taking ownership … technologies and be at the forefront of our platform development. Preferred Skills, Qualifications and Experience • Experience of server-side development, such as services, systems, messaging and middleware. • Familiar with functional programming, such as Erlang, Haskell, F#, Scala or Go. • Experience working with distributed systems. • Good understanding of complex event processes and continuous query languages. • Ability to problem solve. More ❯

the role Web technologies experience (WASM, WebGL), as well as Typescript, Rust and V8 Ideally an undergraduate degree in a relevant STEM subject, such as Comp Sci Exposure to functional programming, pair programming and agile methodologies Some product knowledge within Rates/FX or Equity derivatives Familiarity with financial derivatives and pricing would be advantageous Due to More ❯

the role Web technologies experience (WASM, WebGL), as well as Typescript, Rust and V8 Ideally an undergraduate degree in a relevant STEM subject, such as Comp Sci Exposure to functional programming, pair programming and agile methodologies Some product knowledge within Rates/FX or Equity derivatives Familiarity with financial derivatives and pricing would be advantageous Due to More ❯

exceptionally talented individuals passionate about leveraging the latest technology and pushing boundaries. Potential projects include: Designing and developing scalable, tested, and production-grade distributed systems Research and Development in functional programming languages such as Rust, Erlang, or purpose-built languages like OCaml Building and optimizing Machine Learning Infrastructure and research models What’s in it for you? Software More ❯

Key Requirements: A technical degree (BSc/MSc) in Computer Science, Software Engineering, or a related discipline. Hands-on experience developing production systems using Elixir or Erlang. Familiarity with functional programming paradigms and best practices. Exposure to frameworks like Phoenix, LiveView, or OTP—or a willingness to get up-to-speed quickly. Proven experience designing and maintaining APIs. More ❯

Key Requirements: A technical degree (BSc/MSc) in Computer Science, Software Engineering, or a related discipline. Hands-on experience developing production systems using Elixir or Erlang. Familiarity with functional programming paradigms and best practices. Exposure to frameworks like Phoenix, LiveView, or OTP—or a willingness to get up-to-speed quickly. Proven experience designing and maintaining APIs. More ❯

seeks experience with cloud server providers (e.g. AWS, GCP, Azure). Experience using version control software (e.g. git) is required. Trading/Financial experience. Bonus points for: Experience with functional programming (Rust is a plus, as the company will be using it soon). A little bit about you: The ideal candidate is a dynamic problem-solver who More ❯