1 to 25 of 32 Asynchronous Programming Jobs in London

AI Transformation Developer

Location
Greater London, England, United Kingdom
data storage patterns for AI applications Familiarity with cloud platforms such as AWS and Azure, and containerization technologies including Docker and Kubernetes Understanding of asynchronous programming, performance optimization, and scalable backend architectures Experience with unit testing, debugging, version control, and software engineering best practices Familiarity with data processing ...

Microsoft Full Stack Senior Developer (Manager)

Hiring Organisation
Accenture
Location
London, UK
Employment Type
Full-time
software engineering experience, including recent hands-on delivery using the Microsoft technology stack. Expert-level C#, .NET and ASP.NET Core skills, including API design, asynchronous programming, dependency injection, testing and performance optimisation. Strong commercial experience with React and/or Angular and TypeScript, including component design, state management ...

Software Engineer

Location
Greater London, England, United Kingdom
testing, and building pipelines that package software into deployable Docker artifacts. The Experience You'll Bring Development & Tech: Python, Microservices, REST APIs, FastAPI, Flask, Asynchronous Programming, Object-Oriented Programming (OOP), Test-Driven Development (TDD). DevOps & Deployment: Docker, Docker Compose, Multi-Stage Builds, Kubernetes, K3s, Edge Computing ...

Senior Software Developer

Hiring Organisation
Spectrum IT Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£120000 - £140000/annum
similar Identify and resolve performance bottlenecks across applications and databases Develop reliable, maintainable and highly scalable software Work with multi-threading, concurrency and asynchronous programming Investigate complex technical challenges and deliver long-term solutions Contribute to code reviews, automated testing, CI and development tooling Mentor other developers … Engineering or another relevant technical discipline Highly Desirable Experience in any of the following would be particularly valuable: Multi-threaded and concurrent application development Asynchronous and parallel programming Low-latency or high-throughput systems TCP/IP, UDP or network programming Distributed systems and service-oriented architectures ...

Node Developer

Location
Greater London, England, United Kingdom
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 ...

Senior Software Engineer

Location
Greater London, England, United Kingdom
architecture. Strong knowledge of data structures, algorithms, and object-oriented programming. Hands-on experience with databases such as PostgreSQL, MySQL, or MongoDB. Familiarity with asynchronous programming and performance optimization techniques. Experience with cloud platforms (AWS, GCP, or Azure) and containerization tools like Docker. Knowledge of CI/ ...

Senior Machine Learning Engineer

Location
City Of London, England, United Kingdom
track record of writing clean, maintainable and high-quality production code. Experience supporting business-critical systems in live production environments. Strong understanding of asynchronous programming, Docker, containerised deployments and modern service architectures. Experience designing distributed systems, asynchronous microservices and event-driven architectures. Confidence leading system design discussions … agentic software development can improve engineering delivery without compromising code quality. Strong communication skills and the ability to collaborate effectively in remote or asynchronous environments. An ownership mindset, with the ability to work independently and contribute effectively to shared codebases. Core Values Love what you do: We show ...

Full Stack Developer

Location
City of Westminster, England, United Kingdom
teams to deliver high-quality software solutions. Mentor junior engineers and contribute to technical knowledge sharing. Technical Requirements Node.js : Deep hands-on experience with asynchronous programming and frameworks (Fastify, Express, Koa, or Hapi). Frontend : Strong proficiency in Next.js and Angular . Microservices : Proven experience designing and deploying ...

Data Scientist

Location
City Of London, England, United Kingdom
within a cross-functional team. Nice to have Prior experience in a business-critical/high-uptime production environment Experience with Databricks Understanding of asynchronous programming, containerised deployments (Docker), and modern service architectures Hands-on experience with Infrastructure as Code, particularly Terraform Experience designing and building distributed, asynchronous ...

Senior Forward Deployed ML Engineer, Agents

Location
Greater London, England, United Kingdom
similar orchestration frameworks Voice AI platform experience built real-time conversational systems with production STT/TTS integration Proficiency in Python (production-grade, async programming, type hints) and JavaScript/TypeScript (full-stack development) RAG implementation experience built retrieval-augmented generation systems with vector databases MLOps & deployment hands ...

Python AI Engineer

Hiring Organisation
Square One Resources
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £700/day
workflows using structured outputs, tool calling, schema validation and controlled fallbacks. Implement vector, lexical and hybrid retrieval, metadata filtering, reranking and evidence selection. Build asynchronous services with appropriate timeout, retry, cancellation and exception handling. Develop automated unit, integration, regression and failure-path tests. Implement structured logging, tracing and operational … reviews, engineering standards and production support. Required Skills/Experience: Strong commercial experience developing production-grade Python applications and services. Advanced Python skills, including asynchronous programming, type annotations, modular design and performance optimisation. Hands-on experience with Pydantic, LangGraph, MS Agent Framework/Semantic Kernel or similar ...

Blockchain Software Developer - Digital Assets Platform

Location
Greater London, England, United Kingdom
correctness, and gas efficiency Integrate Web3 libraries and SDKs (e.g., Web3J, Web3JS, Ethers.js, Viem) into enterprise Java and/or Node.js backend services Implement asynchronous, event-driven architectures to handle on-chain events, transaction lifecycle management, and blockchain state synchronization Collaborate with architects and senior engineers to contribute … equivalent) and tokenization patterns Familiarity with blockchain networks (Hyperledger Besu, Solana, Canton) is a strong plus Experience with asynchronous programming, event-driven systems, and message queuing (Kafka, RabbitMQ, or equivalent) Familiarity with DevOps practices, containerization (Docker, Kubernetes), and CI/CD pipelines Understanding of cryptographic concepts — digital signatures ...

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 ...

Quantitative Developer

Location
Greater London, England, United Kingdom
engineering role. Experience within the finance industry is a strong plus. Good working knowledge of NumPy and Pandas. Familiarity with backend development and async programming in Python/modern Python frameworks. Experience with containerisation and cloud deployments (Docker, cloud platforms such as AWS). Practical exposure to financial data ...

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 ...

Lead Machine Learning Engineer - £575 - Inside IR35 - Central London

Hiring Organisation
RecOps
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 575 Daily
Skills required: Strong commercial experience as a Machine Learning Engineer, AI Engineer or Python-focused ML Engineer. Excellent Python skills, including OOP, async programming, design patterns, decorators and writing clean, maintainable code. Experience building, testing and deploying production-grade AI/ML solutions. Strong understanding of machine learning ...

Junior C# Developer

Hiring Organisation
Spectrum IT Recruitment Limited
Location
London, United Kingdom
Employment Type
Permanent
Salary
£90,000
degree in a STEM subject Some commercial experience developing software with C# Good understanding of .NET/.NET Core Solid knowledge of object-oriented programming Understanding of SQL and relational databases Strong problem-solving and analytical skills A genuine enthusiasm for software engineering and learning new technologies Someone … need to tick every box, but exposure to any of the following would be beneficial: ASP.NET Core/Web APIs SQL Server Multithreading or asynchronous programming Git Automated testing and CI/CD Distributed systems Performance optimisation or low-latency applications AWS or Azure An interest in financial ...

Lead Web3 Engineer - Digital Assets Platform

Location
Greater London, England, United Kingdom
following established security and quality standards Build and maintain APIs and microservices that expose blockchain functionality to upstream platform consumers and business applications Implement asynchronous and event‐driven processing to manage transaction lifecycle, on‐chain state changes, and blockchain data synchronization Participate actively in code reviews, contributing constructive feedback … with Backend web development with Java spring Solid 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 ...

Lead Web3 Engineer - Digital Assets Platform

Location
Greater London, England, United Kingdom
following established security and quality standards* **Build and maintain APIs and microservices** that expose blockchain functionality to upstream platform consumers and business applications* **Implement asynchronous and event-driven processing** to manage transaction lifecycle, on-chain state changes, and blockchain data synchronization* **Participate actively in code reviews**, contributing constructive feedback … with Backend web development with Java spring* Solid 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 ...

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 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 ...

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 ...

Android Developer

Location
Greater London, England, United Kingdom
Java codebases. Experience with Jetpack Compose and/or traditional Android Views. Experience with Android Jetpack libraries and modern Android architecture components. Experience with asynchronous programming and Kotlin Coroutines. Knowledge of Android application architecture and design patterns. Experience with CI/CD pipelines and automated build and deployment ...

Senior Quantitative Developer (C++) - Execution Technology

Hiring Organisation
Millennium Management
Location
London, UK
Employment Type
Full-time
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 … 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 ...

Junior Software Developer - Trading

Hiring Organisation
Spectrum IT Recruitment
Location
London, United Kingdom
Employment Type
Permanent
Salary
£60000 - £80000/annum
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 ...