1 to 25 of 52 Functional Programming Jobs

Software Engineer – Python/FastAPI/React/Functional programming/Typescript Location: London, UK (Hybrid) Type: Full-time Level: Mid to Senior Salary: £70,000 to £100,000 About the Role: This startup is building a cutting-edge platform to transform how engineers design physical products. Instead of creating one solution at a time, this system enables … of the UK’s most successful startups, built by top-tier engineers and developers from industry leading teams. We’re looking for a software engineer who enjoys writing clean, functional code and is genuinely passionate about real-world engineering not just building software, but helping change how things are designed and built. Opportunities: Frontend or Backend Tech Stack within … the engineering environment: Backend: Python, FastAPI, Pydantic, PostgreSQL, Docker Frontend: React, TypeScript, Vite Infrastructure: GitHub Actions, GCP, Kubernetes (optional) Paradigms: Functional programming, async APIs, event-driven architecture Responsibilities Build and maintain backend services using FastAPI and Python for geometry, simulation, and data workflows Develop responsive, performant frontends using React and TypeScript Work closely with domain experts (engineers, designers More ❯

Software Engineer – Python/FastAPI/React/Functional programming/Typescript Location: London, UK (Hybrid) Type: Full-time Level: Mid to Senior Salary: £70,000 to £100,000 About the Role: This startup is building a cutting-edge platform to transform how engineers design physical products. Instead of creating one solution at a time, this system enables … of the UK’s most successful startups, built by top-tier engineers and developers from industry leading teams. We’re looking for a software engineer who enjoys writing clean, functional code and is genuinely passionate about real-world engineering not just building software, but helping change how things are designed and built. Opportunities: Frontend or Backend Tech Stack within … the engineering environment: Backend: Python, FastAPI, Pydantic, PostgreSQL, Docker Frontend: React, TypeScript, Vite Infrastructure: GitHub Actions, GCP, Kubernetes (optional) Paradigms: Functional programming, async APIs, event-driven architecture Responsibilities Build and maintain backend services using FastAPI and Python for geometry, simulation, and data workflows Develop responsive, performant frontends using React and TypeScript Work closely with domain experts (engineers, designers More ❯

Software Engineer - Python/FastAPI/React/Functional programming/Typescript Location: London, UK (Hybrid) Type: Full-time Level: Mid to Senior Salary: £70,000 to £100,000 Company: VC back Startup About the Role: This startup is building a cutting-edge platform to transform how engineers design physical products. Instead of creating one solution at a … Computational Geometry. Opportunities: Frontend or Backend Tech Stack within the engineering environment: Backend: Python, FastAPI, Pydantic, PostgreSQL, Docker Frontend: React, TypeScript, Vite Infrastructure: GitHub Actions, GCP, Kubernetes (optional) Paradigms: Functional programming, async APIs, event-driven architecture Responsibilities Build and maintain backend services using FastAPI and Python for geometry, simulation, and data workflows Develop responsive, performant frontends using React … and TypeScript Work closely with domain experts (engineers, designers) to translate complex physical problems into usable software features Follow functional programming practices to write testable, composable code Own features from idea to implementation to deployment Contribute to architectural decisions in a fast-moving, early-stage product Requirements Bachelor's degree in Computer Science 2+ years of experience building More ❯

Programming Languages Researcher – C++/Rust We’re looking for a number of Programming Languages Researchers to join our client onsite in Edinburgh, working at the intersection of academic excellence and industrial innovation. You’ll be part of the Programming Languages team, conducting original research, technology transfer, and engineering on next-generation programming languages and compiler … is a 1 year, PAYE contract, working inside IR35. Please note, you must be able to work 100% onsite in Edinburgh. What You’ll Do Lead research on emerging programming language technologies and frameworks Design and build advanced compiler frameworks for concurrency, control, dataflow, metaprogramming, and large-scale parallel execution Work with academic partners to transfer research ideas into … practical applications Strengthen Huawei’s programming language capabilities across both system-level and high-level domains What We’re Looking For Proven research experience in programming languages and compilers Strong knowledge across theory, applications, compilation, verification, and tooling Excellent programming and analytical skills Deep understanding of functional programming concepts, especially those related to concurrency and More ❯

leading edge technologies to new products. What you should have experience in: Proven track record as a trusted member of a high performing team. Experience with Object Oriented and Functional programming languages. Knowledge about the strengths of different programming language paradigms. Building clean consumable REST interfaces, having clearly negotiated the contract with consumers of that interface. Proven … customer data center or in the cloud. What you should have on your resume: BS/MS degree in Computer Science or closely related field. 3-5 years of functional programming (preferably Clojure) Strong CS skills such as data structures, algorithms, and problem solving. Build and CI tools such as git, Gradle, Leiningen, Clojure deps, CircleCI or Jenkins. More ❯

content management system Internal tooling : Creating intuitive interfaces for content creation, user management, and system administration Data visualization : Building dashboards and analytics interfaces UI implementation : Translating requirements into clean, functional user interfaces with TypeScript Integration work : Connecting frontend tools seamlessly with backend services What we’re looking for: Proven expertise : 5+ years, with 2+ years experience building production Elixir …/Phoenix applications Phoenix Framework mastery : Deep understanding of Phoenix and the broader Elixir ecosystem Functional programming proficiency : Strong grasp of functional programming principles and patterns OTP knowledge : Experience with OTP supervision trees, GenServers, and distributed Erlang applications Database expertise : Strong PostgreSQL skills with experience optimizing complex queries AI-assisted development: Experience using modern AI coding More ❯

content management system Internal tooling : Creating intuitive interfaces for content creation, user management, and system administration Data visualization : Building dashboards and analytics interfaces UI implementation : Translating requirements into clean, functional user interfaces with TypeScript Integration work : Connecting frontend tools seamlessly with backend services What we’re looking for: Proven expertise : 5+ years, with 2+ years experience building production Elixir …/Phoenix applications Phoenix Framework mastery : Deep understanding of Phoenix and the broader Elixir ecosystem Functional programming proficiency : Strong grasp of functional programming principles and patterns OTP knowledge : Experience with OTP supervision trees, GenServers, and distributed Erlang applications Database expertise : Strong PostgreSQL skills with experience optimizing complex queries AI-assisted development: Experience using modern AI coding More ❯

offering the opportunity to work on real-time, high-throughput systems within a fast-paced and innovative trading environment. The ideal candidate will be an expert in reactive Java programming , multithreading, and clean software design, with the mindset to thrive in high-pressure, performance-driven teams. Roles and Responsibilities: Develop and maintain high-performance, low-latency Java-based systems … Kafka Streams , Akka , Eclipse Vert.x , or Apache Flink . Utilize multithreading , concurrency models , and Executor Services to optimize system performance and throughput. Write clean, efficient, and maintainable code using functional programming paradigms in Java. Follow and promote SOLID principles , unit testing , and other modern software development best practices. Collaborate closely with quants, traders, and other developers in a … timelines. Key Requirements: 6+ years of hands-on Java development experience, preferably in front office systems (e.g., trading platforms, pricing engines, market data systems). Proven expertise in reactive programming (Kafka Streams, Akka, Vert.x, Flink). Solid understanding of multithreading and Executor Services in Java. Strong background in functional programming and Java 8+ features. Adherence to robust More ❯

offering the opportunity to work on real-time, high-throughput systems within a fast-paced and innovative trading environment. The ideal candidate will be an expert in reactive Java programming , multithreading, and clean software design, with the mindset to thrive in high-pressure, performance-driven teams. Roles and Responsibilities: Develop and maintain high-performance, low-latency Java-based systems … Kafka Streams , Akka , Eclipse Vert.x , or Apache Flink . Utilize multithreading , concurrency models , and Executor Services to optimize system performance and throughput. Write clean, efficient, and maintainable code using functional programming paradigms in Java. Follow and promote SOLID principles , unit testing , and other modern software development best practices. Collaborate closely with quants, traders, and other developers in a … timelines. Key Requirements: 6+ years of hands-on Java development experience, preferably in front office systems (e.g., trading platforms, pricing engines, market data systems). Proven expertise in reactive programming (Kafka Streams, Akka, Vert.x, Flink). Solid understanding of multithreading and Executor Services in Java. Strong background in functional programming and Java 8+ features. Adherence to robust More ❯

Spring , and Kafka , contributing to the design and delivery of resilient distributed systems used at scale. The Role Design and build high-quality, scalable microservices in Java. Apply functional programming principles using Java or Kotlin. Work extensively with Java Streams , ensuring clean, performant code. Integrate and manage Kafka for real-time data streaming. Optimise SQL queries and database … performance for reliability and speed. Drive best practices across monitoring, observability, and automation. Collaborate with cross-functional teams to deliver new platform capabilities. About You Strong commercial experience with Java 11+ , ideally Java 21 . Deep knowledge of Spring , Kafka , and SQL/DBMS . Comfortable with functional programming concepts in Java or Kotlin. Proven background building More ❯

Spring , and Kafka , contributing to the design and delivery of resilient distributed systems used at scale. The Role Design and build high-quality, scalable microservices in Java. Apply functional programming principles using Java or Kotlin. Work extensively with Java Streams , ensuring clean, performant code. Integrate and manage Kafka for real-time data streaming. Optimise SQL queries and database … performance for reliability and speed. Drive best practices across monitoring, observability, and automation. Collaborate with cross-functional teams to deliver new platform capabilities. About You Strong commercial experience with Java 11+ , ideally Java 21 . Deep knowledge of Spring , Kafka , and SQL/DBMS . Comfortable with functional programming concepts in Java or Kotlin. Proven background building More ❯

enterprise clients. Their platform helps organisations make smarter, faster decisions by uncovering meaningful connections in complex data. Role and responsibilities: Build and enhance core platform services using Scala and functional programming principles. Design, implement, and maintain scalable, distributed systems and microservices. Collaborate in agile teams alongside engineers, product owners, and designers. Work across the full software development lifecycle … from design to deployment. Contribute to continuous improvement of developer tooling and automation. Job requirements: Strong experience with Scala - 3+ years ideally. Understanding of functional programming and strongly typed systems. Experience with technologies such as Akka, Cats, Monix, Docker, Kubernetes, Spark etc. Familiarity with DevOps tools and CI/CD practices. Knowledge of cloud environments (GCP preferred). More ❯

enterprise clients. Their platform helps organisations make smarter, faster decisions by uncovering meaningful connections in complex data. Role and responsibilities: Build and enhance core platform services using Scala and functional programming principles. Design, implement, and maintain scalable, distributed systems and microservices. Collaborate in agile teams alongside engineers, product owners, and designers. Work across the full software development lifecycle … from design to deployment. Contribute to continuous improvement of developer tooling and automation. Job requirements: Strong experience with Scala - 3+ years ideally. Understanding of functional programming and strongly typed systems. Experience with technologies such as Akka, Cats, Monix, Docker, Kubernetes, Spark etc. Familiarity with DevOps tools and CI/CD practices. Knowledge of cloud environments (GCP preferred). More ❯

Product-Focused Backend Engineer Functional Programming & Distributed Systems London (Hybrid) | £120,000£160,000 + Equity At Ncounter, were partnering with a cutting-edge AI company on a mission to redefine how professionals in highly regulated industries interact with complex, multi-modal data. Their platform empowers users to deploy custom no-code AI agents that produce verifiable outputs … Design to solve real user problems Playing an active role in shaping team goals, defining technical metrics, and prioritising outcomes over ticket-chasing Your Background: Hands-on experience with functional programming (Elixir is a plus, but other languages like Scala, Haskell, Clojure, Go, Node.js, or F# are welcome) Proven track record of building and scaling distributed backend systems More ❯

Hard Skills: 5+ years' experience in mobile development Native and/or React Native mobile development experience (Swift, Kotlin, TypeScript) Strong understanding of modern development patterns such as functional programming, object-oriented design, MVVM Job Description: Seeking an innovative and passionate Front-End Mobile Developer to help build the next generation of our award-winning, online auto and … Mandatory Skills: Required Technical Skills Strong working experience with browser-based technology, user interface development, responsive web design and engineering cross-browser, cross-device compliant code Architectural patterns of functional programming and best practices Preferred experience with native mobile languages - Kotlin, Objective-C, Jetpack Compose, Swift UI 3-5 years' experience with JavaScript, ES6+, Typescript Experience with JavaScript More ❯

We're looking for multiple engineers to join the Programming Languages team at a leading R&D global institute to conduct original research, lead technology transfer, and contribute to engineering efforts in programming languages at the Edinburgh Research Centre. The role also supports collaboration with the University of Edinburgh’s School of Informatics. Key Responsibilities: Identify and investigate … emerging technologies and requirements, contributing to Huawei’s capabilities in both system-level and high-level programming languages. Design and implement advanced compiler frameworks addressing concurrency and control, dataflow, cloud computing, metaprogramming, and large-scale parallel execution. Collaborate with the University of Edinburgh’s School of Informatics on compilers and programming languages, with a focus on transferring academic … research into industrial practice. Key Qualifications: Strong understanding of modern programming languages—including theory, applications, compilation, verification, and tooling—across both object-oriented and functional paradigms. Proven research background in programming languages and compilers. Excellent programming, research, and analytical skills. Familiarity with functional programming concepts and techniques, especially those related to concurrency and control. More ❯

This client is looking for a Programming Language Engineer to accelerate the development of a bespoke AI Agent Orchestration language. This role sits at the intersection of theoretical computer science and cutting-edge AI, applying methods from category theory and type theory to orchestrate complex, adaptive systems of agents. The successful candidate will play a leading role in bridging … automation Collaborate with a distributed team of researchers and engineers Requirements Master’s or PhD in Computer Science, Mathematics, or related field Expertise in category theory, type theory, or functional programming Strong programming skills and experience in language design or LLM agent development Familiarity with dependent types and current AI agent architectures Excellent communication and remote collaboration … Why This Role? This is a unique opportunity to work on a high-impact project that blends deep theoretical insight with practical AI engineering. If you're passionate about programming languages, formal methods, and pushing the boundaries of what intelligent systems can do, we’d love to hear from you. This client are open to permanent or contract engagements More ❯

environment. 💼 The Opportunity Collaborate with elite engineers on a SPA used across the investment bank for derivatives trading. Build elegant, high-performance UIs with real-time data updates and functional programming paradigms. Shape a front-end architecture trusted by traders, with a focus on resilience, performance, and usability . Leverage the latest web technologies in a fast-paced … Requirements Strong commercial experience with TypeScript , ES6 , HTML5, and advanced CSS. Proven delivery of performance-critical SPAs , ideally within front-office trading or other high-frequency environments. Proficiency with functional and reactive programming using immutable data structures . Attention to UI/UX detail – you take pride in building intuitive, beautiful products. Comfortable working in collaborative, high-performance More ❯

also demonstrable ability to work independently due to the remote nature of the role Ideally an undergraduate degree in a relevant STEM subject, such as Comp Sci Exposure to functional programming, pair programming and agile methodologies Product/model knowledge within Rates/FX or Equity derivatives Familiarity with financial derivatives and pricing Due to demand, we More ❯

for? Strong analytical mindset and problem-solving skills Proficient in at least one language (Java, Kotlin, TypeScript, JavaScript, Go) and open to learning new ones Deep understanding of OOP, functional programming, and software design patterns Solid grasp of computer science fundamentals: data structures, algorithms, complexity Experience designing and documenting system architecture Proficient in writing unit and integration tests More ❯

to define clear API contracts and integration patterns Contribute to code quality, testing, and CI/CD automation Monitor, troubleshoot, and optimize performance of services and API endpoints Strong programming experience with Scala (Akka, Play, or Cats/Scalaz) and Java (8+) Hands-on experience with Apache Kafka (producer/consumer APIs, Avro/Protobuf, topic design) Experience building … and consuming RESTful APIs and optionally GraphQL APIs Knowledge of functional programming and reactive patterns Familiarity with Spring Boot, asynchronous programming, and dependency injection Strong unit and integration testing practices Comfortable with Git, CI/CD pipelines, and API security (OAuth2, JWT) Nice to Have Kafka Streams or Akka Streams experience Exposure to Kafka Connect, Schema Registry More ❯

ideas, give and receive constructive feedback, and take collective responsibility for team outcomes. If you don't have every technology listed but have solid experience with object-oriented or functional programming and a desire to learn, you'll still be strongly considered. What you'll get in return: Profit Share: Paid quarterly (subject to company performance) Hybrid Working More ❯

ideas, give and receive constructive feedback, and take collective responsibility for team outcomes. If you don't have every technology listed but have solid experience with object-oriented or functional programming and a desire to learn, you'll still be strongly considered. What you'll get in return: Profit Share: Paid quarterly (subject to company performance) Hybrid Working More ❯

troubleshooting activities within a fast-paced, agile team Qualifications What are we looking for? Minimum of 2 years of professional experience in a Software Developer/Engineer role. Solid programming experience in either Java or TypeScript, and a willingness to learn additional languages/tooling. Solid understanding of software engineering fundamentals, including OOP, functional programming, and design More ❯

development experience Strong, proactive communication skills, with a deep preference for teamwork Experience in independent project management of complex problem solving Tech-agnostic engineer, with competence in a major programming language - experience in functional programming languages is preferred. Some of the technologies we use include Elixir, Phoenix LiveView, EmberJS, TypeScript, Python, Postgres SQL, AWS and Docker. The More ❯