26 to 50 of 69 Asynchronous Programming Jobs in England

C# / .NET Developer – Front Office Liquidity, Treasury & Risk Systems

Location
Greater London, England, United Kingdom
business analyst or translation layers. Key Responsibilities Design & Engineering Design, build, and optimize high-performance back-end calculation engines using modern C# .NET. Develop asynchronous, message-driven microservices (using Rebus/messaging queues) and Windows Services for distributed processing. Build and tune database objects, complex queries, and data access … transparency, and operational risk mitigation. Technical Environment Core Technologies Languages & Frameworks: C# .NET, Windows Services, ASP.NET Web API, SignalR Architecture & Messaging: Event-driven architecture, asynchronous message-driven systems (Rebus), Service-Oriented Architecture (SOA) Data & Storage: MS SQL Server (performance tuning, schema design), Dapper DevOps & CI/CD: Git, TeamCity ...

.Net Developer -Manchester

Hiring Organisation
Capgemini
Location
Manchester, United Kingdom
Employment Type
Full Time
maintain scalable, secure, and high-quality applications using C#, .NET, and ASP.NET Core. Build Microservices-based solutions, REST APIs, and service integrations using synchronous, asynchronous, and event-driven communication patterns. Implement and support messaging solutions using Azure Service Bus, Kafka, RabbitMQ, or similar technologies. Configure and manage API Gateway … patterns. Experience with messaging technologies such as Azure Service Bus, Kafka, RabbitMQ, or similar platforms. Strong understanding of API Gateway implementation, Dependency Injection (DI), asynchronous programming, and concurrent application design. Knowledge of OAuth 2.0, JWT, OpenID Connect, SSL/TLS, Azure Key Vault (or similar), and secure application ...

AI Engineer Python

Location
Bracknell, England, United Kingdom
What You’ll Do Design, build and maintain production-grade Python services, libraries and developer tools. Apply modern Python practices, including packaging, type hints, asynchronous programming and maintainable API design. Create shared libraries, service templates and engineering standards that enable multiple internal teams to build consistently and efficiently. … clean, maintainable and well-tested code, and to solve complex engineering problems independently. Strong experience with modern Python practices: packaging, dependency management, typing, async programming and service/API development. Experience designing and maintaining reusable libraries, service templates or internal developer platforms used by multiple teams. Strong knowledge ...

Senior Backend Engineer (Python)

Location
Greater London, England, United Kingdom
4+ years of experience in Python engineering, ideally building AI platforms, ML infrastructure, or applied AI products. Deep expertise in Python, asynchronous programming, system design, and backend engineering fundamentals. Hands-on experience building production systems involving: LLM orchestration or agent frameworks (Pydantic, LangChain, custom orchestration). Data pipelines ...

Software Engineer - Backend

Location
Reading, England, United Kingdom
empathize with end-users’ needs when designing UI interactions and workflows. Great teamwork and communication skills Highly Desirable: An understanding of and experience of asynchronous programming (such as python Twisted or AsyncIO or similar) A good understanding of Linux A solid understanding of databases Experience of working with ...

.NET Engineer

Location
Greater London, England, United Kingdom
versions. Excellent understanding of Entity Framework Core, LINQ, and collections. Excellent understanding of ASP.NET, associated concepts, error handling, and request lifecycle. Excellent understanding of asynchronous programming, generics, data types, and memory management in C#. Excellent understanding of object-oriented programming and software engineering fundamentals. Very good understanding ...

Threat Modeling – Cyber Security

Location
Greater London, England, United Kingdom
CICD, Pipelines, SDLC) Scripting languages, Infrastructure as Code (Terraform, CloudFormation) Understanding of docker/K8S/serverless/helm – must. Strong proficiency in Programming Languages, with a preference for Python (asynchronous programming), and FastAPI Unit Testing: Developing and executing unit tests using frameworks like Pytest to ensure ...

Senior Python Engineer: AI Agents & Forecasting

Location
Greater London, England, United Kingdom
LangGraph (agent memory, tool calling, state management) Dagster in production (assets, sensors, partitions) or equivalent pipeline orchestration Strong backend fundamentals including API design, async programming, and database modelling You've built systems that had to work reliably at scale, not just pass a demo Experience 5+ years ...

Full-stack AI Engineer

Location
Greater London, England, United Kingdom
skills - you can architect complex frontend applications with good state management, performance, and testing Strong Python backend experience - FastAPI, Django, or Flask with async programming, clean architecture, and production-grade code System design skills - you can design scalable, maintainable systems and articulate trade-offs clearly API design expertise - REST ...

Senior Search Backend Engineer New London, England, United Kingdom (Hybrid)

Location
Greater London, England, United Kingdom
foundations of search capabilities across domains. You will: Design and implement search functionalities in a PaaS ecommerce Scala backend. Learn Scala and functional programming as your new main development tools Develop search-related libraries based on ElasticSearch and MongoDB Run and maintain a scalable search “infrastructure as code … Search-related experience (preferably ElasticSearch) Strong DevOps mindset as you will drive lots of infrastructure improvements Interest in working with Scala using pragmatic functional programming patterns Practical work experience in developing server-side systems using the JVM Solid understanding of parallel and asynchronous programming, as well ...

Lead Web3 Engineer - Digital Assets Platform

Hiring Organisation
Citigroup
Location
London, England, United Kingdom
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 ...

Senior Rust Software Engineer

Location
Greater London, England, United Kingdom
deliver business-critical software Drive performance optimisation, reliability and engineering best practices Skills & Experience Commercial experience developing software in Rust Strong background in systems programming and backend engineering Experience building low-latency or high-performance distributed systems Strong knowledge of Linux, concurrency and asynchronous programming Excellent understanding ...

Android Engineer

Location
Burgess Hill, England, United Kingdom
Experience with build tools such as Gradle, GitHub Actions, and CircleCI. Understanding of Continuous Integration and Continuous Delivery (CI/CD) practices. Experience with asynchronous programming and reactive development patterns. Strong debugging, troubleshooting, and problem-solving skills. Experience with performance analysis and application optimization. Ability to work with ...

iOS Developer

Location
Leeds, England, United Kingdom
Desirable technical skills Experience with Objective-C and maintaining or modernising existing Objective-C codebases. Experience with SwiftUI and/or UIKit. Experience with asynchronous programming and concurrency in Swift. Knowledge of iOS application architecture and design patterns. Experience with CI/CD pipelines and automated build ...

iOS Developer

Location
Manchester, England, United Kingdom
Desirable technical skills Experience with Objective-C and maintaining or modernising existing Objective-C codebases. Experience with SwiftUI and/or UIKit. Experience with asynchronous programming and concurrency in Swift. Knowledge of iOS application architecture and design patterns. Experience with CI/CD pipelines and automated build ...

iOS Developer

Location
Greater London, England, United Kingdom
Desirable technical skills Experience with Objective-C and maintaining or modernising existing Objective-C codebases. Experience with SwiftUI and/or UIKit. Experience with asynchronous programming and concurrency in Swift. Knowledge of iOS application architecture and design patterns. Experience with CI/CD pipelines and automated build ...

AI Platform Engineer - TypeScript AWS MCP Agentic AI

Hiring Organisation
Method-Resourcing
Location
London, United Kingdom
Employment Type
Permanent
Salary
£90,000
calling, tool use and agent orchestration. API gateways, OAuth2, JWT and secure service-to-service communication. JSON-RPC, Server-Sent Events (SSE), WebSockets or asynchronous programming. Experience designing and deploying production AI applications. If you're a strong backend engineer who's already building with AI, or an experienced ...

Senior Search Backend Engineer (m/f/x)

Location
Greater London, England, United Kingdom
multi-tenant architecture Test software components regarding usability, functionality, and performance, and work closely with Product Management and DevOps Learn Scala and functional programming as your new main development tools Take part in on‐call rotation with a worldwide distributed team for production systems This role is hybrid, with … quality. You bring: At least 5 years of experience as a Software Engineer, with production experience on the JVM Solid understanding of parallel and asynchronous programming, as well as non‐blocking I/O Experience developing REST APIs and knowledge of scalable architectures, including sharding, replication, load balancing ...

Senior Software Developer

Hiring Organisation
Spectrum IT Recruitment Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
optimise relational database solutions using SQL Server, Oracle or similar technologies. Investigate performance bottlenecks and improve application and database efficiency. Apply multithreading, concurrency and asynchronous programming to demanding engineering problems. Strengthen software quality through code reviews, automated testing and continuous integration. Mentor other developers and help maintain high … standards. Skills Required: At least five years' commercial software development experience, with strong expertise in C# and modern .NET. Excellent understanding of object-oriented programming, software design principles and architecture. Experience delivering production applications where performance, reliability and scalability are essential. Strong SQL skills and experience with relational databases. ...

Senior Blockchain Engineer - Digital Assets Platform

Location
Greater London, England, United Kingdom
with Backend web development with Java spring Proven experience in web3 application development is a plus Solid experience and expertise developing web applications using asynchronous programming and communication Experience and expertise developing web applications adhering to best practices and patterns for reliability, scalability, and performance Familiarity with web3 ...

Snr Full Stack Python Engineer-Agentic Systems

Location
Greater London, England, United Kingdom
full stack and translating ambiguous business problems into robust, production-grade solutions. You will play a hands-on role in building and scaling asynchronous task pipelines, implementing MCP (Model Context Protocol) servers and tools around complex APIs and internal systems, and integrating LLM-based orchestration frameworks. On the front … support tooling and data platforms used by commodities trading, research, or risk functions. Key Responsibilities Design, develop, and maintain backend services in Python, including asynchronous task processing using Celery, Redis (as broker/result backend), Celery Beat (scheduled/periodic tasks), and Flower (task monitoring/observability). Build ...

Senior AI & ML Software Engineer — Production Agents

Location
Greater London, England, United Kingdom
engineers to keep production quality high and robust. The role requires 5+ years of software development experience, strong Python skills, and expertise in asynchronous programming, distributed microservices, and cloud infrastructure with #J-18808-Ljbffr ...

Senior Developer

Location
Farnborough, England, United Kingdom
mentoring others Operate as part of a flexible Team and undertake ad hoc project work as required. Skills and Knowledge Understanding the nature of asynchronous programming, web sockets and event driven architecture Implement accessibility, security compliance and data protection best practices User authentication and authorization between multiple systems ...

C++ Developer

Hiring Organisation
Pure Talent Group
Location
DE1 2RU, Derby, Derbyshire, United Kingdom
Employment Type
Permanent
Salary
£25000 - £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 ...

Senior Developer/Sotware Engineer - Python/PySpark/API - AI Assisted Development

Hiring Organisation
Scope AT Limited
Location
Manchester, Cheshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
strong engineering judgement and the ability to contribute independently from day one, with technical depth of experience in overall architecture, core Python multiprocessing, async programming, FastAPI, source control and CI/CD. Including practical experience with messaging platforms such as Kafka and the use of AI assisted tools ...