1 to 25 of 28 Asynchronous Programming Jobs in England

Senior Full Stack Developer | C#.NET, React | London

Hiring Organisation
Source Group International
Location
London, United Kingdom
Salary
> £ 150 K
craft and delivery.Required Skills & Experience Extensive commercial experience in full stack development with C#/.NET and React.Strong knowledge of .NET Core, dependency injection, asynchronous programming, and API design.Strong React experience including state management and modern front-end tooling.Solid understanding of software design principles, patterns, and clean code ...

Node Developer

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent
Salary
£65,000
cycles, contributing to sprint planning, code reviews, and continuous delivery. Key Skills/Experience: Proven experience in Node.js development Strong knowledge of JavaScript (ES6+), asynchronous programming, and event-driven architecture. Experience with building and maintaining RESTful APIs. Solid understanding of SQL and NoSQL databases (e.g., MongoDB, PostgreSQL, MySQL ...

Node Developer

Hiring Organisation
Solirius Consulting
Location
London, United Kingdom
Salary
£ 80 K
development cycles, contributing to sprint planning, code reviews, and continuous delivery.Key Skills/Experience:Proven experience in Node.js development Strong knowledge of JavaScript (ES6+), asynchronous programming, and event-driven architecture.Experience with building and maintaining RESTful APIs.Solid understanding of SQL and NoSQL databases (e.g., MongoDB, PostgreSQL, MySQL).Familiarity with ...

Senior React Developer - SC Cleared

Hiring Organisation
Searchability NS&D
Location
Leeds, West Yorkshire, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £65,000 per annum
have experience with: React.js and TypeScript. Modern JavaScript (ES6+), HTML5 and CSS3. State management libraries such as Redux or Context API. REST APIs and asynchronous programming. Testing frameworks such as Jest and React Testing Library. Git and collaborative development workflows. Agile/Scrum delivery environments. CI/CD pipelines ...

Engineering & Science - Senior Software Engineering

Hiring Organisation
Elekta
Location
Oxford, Oxfordshire, United Kingdom
Salary
£ 70 K
Kubernetes, and CI/CD pipelines (Azure DevOps or similar).Familiarity with open-source tools, cloud platforms, and infrastructure automation.Understanding of software design patterns, asynchronous programming, and event-driven systems.Experience in regulated industries (healthcare preferred), cybersecurity best practices, and observability tools desired.What You’ll Get:In this role ...

Senior Software Developer - Scala

Hiring Organisation
Hackajob Ltd
Location
Newcastle Upon Tyne, Tyne and Wear, North East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
maintain robust backend services using Scala 2.13 and Play Framework in a Pekko-based environment. Build clean, testable, and maintainable code using functional programming principles, immutability, pattern matching, and asynchronous programming with Futures. Work with MySQL to design efficient data access patterns, optimize queries, tune indexes … profiling, and transaction behaviour. Experience using Redis or similar technologies for caching, session handling, or performance-sensitive workloads. Deep understanding of OOP principles, functional programming, concurrency, the Scala type system, and advanced architectural patterns (e.g., Tagless Final, type classes, effect systems). Ability to design and evolve complex distributed ...

Software Engineer

Hiring Organisation
Elekta
Location
Oxford, Oxfordshire, United Kingdom
Salary
£ 70 K
Angular Back end: Microservices, REST APIs, SQL, Rabbit MQ Experience of CI/CD Docker, Kubernetes VMware Azure DevOps Domain Driven Design practices Asynchronous programming and event-driven systems using message queues What You’ll Get:In this role, you will work for a higher purpose; hope ...

Developer - Scala

Hiring Organisation
Hackajob Ltd
Location
Newcastle Upon Tyne, Tyne and Wear, North East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£85,000
maintain robust backend services using Scala 2.13 and Play Framework in a Pekko-based environment. Build clean, testable, and maintainable code using functional programming principles, immutability, pattern matching, and asynchronous programming with Futures. Work with MySQL to design efficient data access patterns, optimize queries, tune indexes … profiling, and transaction behaviour. Experience using Redis or similar technologies for caching, session handling, or performance-sensitive workloads. Deep understanding of OOP principles, functional programming, concurrency, the Scala type system, and advanced architectural patterns (e.g., Tagless Final, type classes, effect systems). Ability to design and evolve complex distributed ...

Software Engineer

Hiring Organisation
SportRadar
Location
London, United Kingdom
Salary
£ 80 K
development tools such as GitHub Copilot and Cursor to deliver high-quality software efficiently. RequiredProven experience developing real-world applications using C#.Strong knowledge of asynchronous programming, LINQ and modern .NET development practices.Practical experience with front-end technologies, ideally React.A proactive approach to incorporating AI into your development workflow.Solid … understanding of object-oriented programming, design patterns and RESTful APIs.A genuine interest in software product development trends and best practices.A positive, can-do attitude with pride in your work and the ability to maintain momentum. DesirableExperience integrating LLMs and AI APIs.Exposure to cloud platforms such as AWS, Azure ...

Blockchain Software Developer - Digital Assets Platform

Hiring Organisation
Citigroup
Location
London, United Kingdom
Salary
£ 80 K
ensuring security, correctness, and gas efficiencyIntegrate Web3 libraries and SDKs (e.g., Web3J, Web3JS, Ethers.js, Viem) into enterprise Java and/or Node.js backend servicesImplement asynchronous, event-driven architectures to handle on-chain events, transaction lifecycle management, and blockchain state synchronizationCollaborate with architects and senior engineers to contribute … equivalent) and tokenization patternsFamiliarity with blockchain networks (Hyperledger Besu, Solana, Canton) is a strong plusExperience with asynchronous programming, event-driven systems, and message queuing (Kafka, RabbitMQ, or equivalent)Familiarity with DevOps practices, containerization (Docker, Kubernetes), and CI/CD pipelinesUnderstanding of cryptographic concepts — digital signatures, hashing ...

Manager - Lead AI Engineer

Hiring Organisation
KPMG UK
Location
City of London, London, United Kingdom
Requirements Experience: Significant professional experience in backend development as a Senior role. Languages/Frameworks: Strong proficiency in Python with hands-on experience in asynchronous programming, concurrency and multithreading. API Expertise: Proven experience in building and integrating APIs, with expertise in API documentation and schema definition using OpenAPI ...

Senior Software Developer

Hiring Organisation
Spectrum IT Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£120000 - £150000/annum
Essential Skills & Experience 5+ years' professional software development experience Strong commercial experience developing applications using C# and modern .NET Excellent understanding of object-oriented programming, software design principles and architecture Proven experience designing and developing production-grade, scalable software systems Strong experience working with SQL Server, Oracle or another … Computer Science, Mathematics, Physics, Engineering or another relevant scientific/technical discipline Desirable Technical Experience Experience developing multi-threaded and concurrent applications Understanding of asynchronous programming and parallel processing Experience with TCP/IP, UDP or network programming Experience building low-latency or high-throughput applications Experience ...

Senior Software Developer

Hiring Organisation
Spectrum IT Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£120,000 - £150,000 per annum
Essential Skills & Experience 5+ years' professional software development experience Strong commercial experience developing applications using C# and modern .NET Excellent understanding of object-oriented programming, software design principles and architecture Proven experience designing and developing production-grade, scalable software systems Strong experience working with SQL Server, Oracle or another … Computer Science, Mathematics, Physics, Engineering or another relevant scientific/technical discipline Desirable Technical Experience Experience developing multi-threaded and concurrent applications Understanding of asynchronous programming and parallel processing Experience with TCP/IP, UDP or network programming Experience building low-latency or high-throughput applications Experience ...

Junior Software Developer - Trading

Hiring Organisation
Spectrum IT Recruitment
Location
London, United Kingdom
Salary
£ 70 K
educational background - At least a 2:1 in STEM subjectCommercial experience developing with C#.Good understanding of .NET/.NET Core.Strong understanding of object-oriented programming and software development principles.Knowledge of SQL and relational databases.Strong problem-solving and analytical skills.A genuine interest in developing high-quality software.Good communication skills … ability to work effectively within a development team.Desirable:Experience with ASP.NET Core or Web APIs.Knowledge of SQL Server.Exposure to multithreading, asynchronous programming or distributed systems.Experience with Git and modern development practices.Understanding of performance optimisation and low-latency systems.Exposure to automated testing and CI/CD.Knowledge of cloud technologies ...

Junior Software Developer - Trading

Hiring Organisation
Spectrum It Recruitment Limited
Location
London, United Kingdom
Employment Type
Permanent
Salary
£80,000
least a 2:1 in STEM subject Commercial experience developing with C#. Good understanding of .NET/.NET Core. Strong understanding of object-oriented programming and software development principles. Knowledge of SQL and relational databases. Strong problem-solving and analytical skills. A genuine interest in developing high-quality software. … ability to work effectively within a development team. Desirable: Experience with ASP.NET Core or Web APIs. Knowledge of SQL Server. Exposure to multithreading, asynchronous programming or distributed systems. Experience with Git and modern development practices. Understanding of performance optimisation and low-latency systems. Exposure to automated testing ...

Digital Assets Platform Engineering Team Lead - SVP

Hiring Organisation
Citigroup
Location
London, United Kingdom
Salary
£ 120 K
tokenization frameworksProven experience architecting and delivering high-throughput, high-availability enterprise systems that meet strict standards for reliability, scalability, and performanceStrong proficiency in asynchronous programming paradigms and event-driven architecture patternsWorking knowledge of Web3 libraries (Web3J, Web3JS) and their application in enterprise contextsDemonstrated familiarity with Solidity and smart ...

AI Software Engineer

Hiring Organisation
X-On Health
Location
Woodbridge, Suffolk, East Anglia, United Kingdom
Employment Type
Permanent
Salary
£35,000
quality and cost Our core tech stack: GitLab MySQL RabbitMQ Redis PHP + Laravel React Electron Puppet (build and deploy) OpenSIPS FreeSWITCH Essential experience: Programming Proficiency: Strong foundation in a backend language. Our stack is primarily Go (Golang), so experience with Go or a strong willingness to cross-train … Exposure: Practical experience interacting with LLM APIs (OpenAI, Anthropic, etc.) and understanding concepts like Context Windows, RAG, System Prompts, and Temperature Concurrency: Understanding of asynchronous programming (WebSockets, goroutines) is highly beneficial given the real-time nature of voice data Several years experience in industry A team player ...

Full stack Engineer - AI

Hiring Organisation
ebury
Location
London, United Kingdom
Salary
£ 80 K
industrialize productionize lifecycle, turning promising AI prototypes into hardened, daily-deployed services on CD pipelines.Mentor & Lead: Uplift mid-level engineers through code reviews, pair programming, and establishing scalable engineering patterns.Collaborate Cross-Functionally: Partner with Product, Ops, Trading, and Treasury to identify high-value workflows worth automating (and ruthlessly deprioritize … integration patternsWhat We're Looking ForMust-Haves5+ years of professional software engineering experience.Strong Python Backend Expertise: Deep experience with FastAPI (or Django/Flask), asynchronous programming, clean architecture, and writing production-grade code.Strong React & TypeScript Skills: Ability to architect non-trivial frontends with sound state management, performance optimization ...

Lead Web3 Engineer - Digital Assets Platform

Hiring Organisation
Citigroup
Location
London, United Kingdom
Salary
£ 80 K
equivalent languages, following established security and quality standardsBuild and maintain APIs and microservices that expose blockchain functionality to upstream platform consumers and business applicationsImplement asynchronous and event-driven processing to manage transaction lifecycle, on-chain state changes, and blockchain data synchronizationParticipate actively in code reviews, contributing constructive feedback … expertise with Backend web development with Java springSolid experience in web3 application development is a plusSolid experience and expertise developing web applications using asynchronous programming and communicationExperience and expertise developing web applications adhering to best practices and patterns for reliability, scalability, and performanceFamiliarity with web3 libraries like Web3J ...

C# Developer

Hiring Organisation
Impellam Group
Location
City of London, London, United Kingdom
experience in C#/.NET Strong experience with SQL Server Proven experience working with service-based architectures (REST, gRPC, web technologies) Solid understanding of asynchronous programming and multithreading Experience with messaging middleware (e.g., IBM MQ or similar) Experience working with front office, trading, or risk stakeholders Strong software ...

Senior Quantitative Developer

Hiring Organisation
Millennium Management
Location
London, United Kingdom
Salary
£ 100 K
connectivity, and messaging systems.Partner directly with central trading teams to optimize execution performance across businesses and regions.Reduce system latency using advanced network and systems programming techniques and other performance-focused methodologies.Build systems, interfaces, and tools for historical market data analysis and trading simulations to improve research productivity and system … professional software development experience, including at least 5 years in a front-office financial services environment.Strong expertise in data structures, algorithms, and object-oriented programming in C++.Proficiency with C++17 and C++20, multithreading, and asynchronous programming environments.Strong understanding of low-latency and real-time system design and implementation.Deep ...

Senior Blockchain Engineer - Digital Assets Platform

Hiring Organisation
Citigroup
Location
London, United Kingdom
Salary
£ 80 K
expertise with Backend web development with Java springProven experience in web3 application development is a plusSolid experience and expertise developing web applications using asynchronous programming and communicationExperience and expertise developing web applications adhering to best practices and patterns for reliability, scalability, and performanceFamiliarity with web3 libraries like Web3J ...

C++ Developer

Hiring Organisation
Pure Talent Group
Location
DE1 2RU, Derby, Derbyshire, United Kingdom
Employment Type
Permanent
Salary
£38000/annum
Skills & Experience Proven commercial experience in C++ development (modern C++/Versions C++20 and C++23) Experience developing games or interactive applications Strong understanding of asynchronous programming (e.g. coroutines) Working knowledge of JavaScript (ES6+) Experience working with JSON Git or other source control systems Strong problem-solving skills ...

Python Developer

Hiring Organisation
Response Informatics
Location
London, United Kingdom
Employment Type
Contract
Computer Science, Finance, or related field Experience: 5+ years in software development, with 2+ years in banking or fintech Backend: Advanced Python proficiency, asynchronous programming Frontend: Strong React.js ...

Android Software Engineer

Hiring Organisation
Burton Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £100,000 per annum
Requirements: 3+ years of Android development experience using Kotlin. Hands-on experience integrating AI features (e.g. LLM, vision, speech APIs). Strong understanding of asynchronous programming (Coroutines, Flow). Familiarity with REST or gRPC APIs and structured data formats. Strong debugging and performance profiling skills. Comfort building ...