1 to 25 of 31 Remote Asynchronous Programming Jobs

Remote Senior Node.js Developer (UK)

Hiring Organisation
Flosum
Location
Wrexham, United Kingdom
development in production environments — not tutorials, not side projects, not bootcamp exercises. Real production systems serving real users at scale. Expert-level understanding of asynchronous programming, event loops, streams, and the Node.js runtime. You should be able to explain backpressure, the differences between setImmediate and process.nextTick ...

Remote Senior Node.js Developer (UK)

Hiring Organisation
Flosum
Location
Leicestershire, United Kingdom
development in production environments — not tutorials, not side projects, not bootcamp exercises. Real production systems serving real users at scale. Expert-level understanding of asynchronous programming, event loops, streams, and the Node.js runtime. You should be able to explain backpressure, the differences between setImmediate and process.nextTick ...

Remote Senior Node.js Developer (UK)

Hiring Organisation
Flosum
Location
Hampshire, United Kingdom
development in production environments — not tutorials, not side projects, not bootcamp exercises. Real production systems serving real users at scale. Expert-level understanding of asynchronous programming, event loops, streams, and the Node.js runtime. You should be able to explain backpressure, the differences between setImmediate and process.nextTick ...

Remote Senior Node.js Developer (UK)

Hiring Organisation
Flosum
Location
Essex, United Kingdom
development in production environments — not tutorials, not side projects, not bootcamp exercises. Real production systems serving real users at scale. Expert-level understanding of asynchronous programming, event loops, streams, and the Node.js runtime. You should be able to explain backpressure, the differences between setImmediate and process.nextTick ...

Remote Senior Node.js Developer (UK)

Hiring Organisation
Flosum
Location
Perth and kinross, United Kingdom
development in production environments — not tutorials, not side projects, not bootcamp exercises. Real production systems serving real users at scale. Expert-level understanding of asynchronous programming, event loops, streams, and the Node.js runtime. You should be able to explain backpressure, the differences between setImmediate and process.nextTick ...

Remote Senior Node.js Developer (UK)

Hiring Organisation
Flosum
Location
Redcar and cleveland, United Kingdom
development in production environments — not tutorials, not side projects, not bootcamp exercises. Real production systems serving real users at scale. Expert-level understanding of asynchronous programming, event loops, streams, and the Node.js runtime. You should be able to explain backpressure, the differences between setImmediate and process.nextTick ...

Node.js Developer - £50,000 - Permanent

Hiring Organisation
Stealth IT Consulting
Location
City, Newcastle Upon Tyne, United Kingdom
Employment Type
Permanent
Salary
GBP 50,000 Annual
experience with Node.js. Proficiency in JavaScript (ES6+) and/or TypeScript. Experience building REST APIs and microservices. Knowledge of Express.js or NestJS. Experience with asynchronous programming and event-driven architecture. Strong understanding of authentication and authorization (OAuth2, JWT). Experience with SQL and NoSQL databases such as PostgreSQL ...

Senior Frontend Engineer (React.js)

Location
Greater London, England, United Kingdom
Redux, React Query, or Context API. Expertise in integrating frontend applications with RESTful APIs. Experience with testing frameworks such as Cypress, Playwright. Familiarity with asynchronous programming techniques. Familiarity with graphs libraries such as eCharts. Basic understanding of the Python programming language, as the backend is developed ...

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 ...

Senior Backend Engineer

Location
Greater London, England, United Kingdom
ownership over services or distributed systems. Expertise in Python, FastAPI, Flask, or Node.js and modern backend development patterns. Strong understanding of microservices, concurrency, async programming, and event‐driven architectures. Proficiency with SQL and NoSQL databases (PostgreSQL, DynamoDB, Redis, MongoDB). Hands‐on experience with Docker, Kubernetes, and cloud platforms ...

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 ...

Engineering & Science - Senior Software Engineering

Location
Crawley, England, United Kingdom
/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 Work pattern ...

Senior Application Development Lead – Generative AI (Gen AI), Vice President

Location
Belfast City District, Northern Ireland, United Kingdom
production APIs, and monitoring/observability tools, with an emphasis on reliability and scalability Strong hands‐on software engineering skills, including Python, FastAPI, async programming patterns, and building high‐performance AI‐powered APIs Understanding of AI system evaluation, safety, and governance, including hallucination handling, guardrails, feedback loops, and responsible ...

Threat Modeling – Cyber Security

Hiring Organisation
Diana Duggan UK Limited
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£450.00 - £500.00 per day
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 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 ...

Digital Assets Platform Engineering Team Lead - SVP

Location
Greater London, England, United Kingdom
frameworks Proven experience architecting and delivering high‐throughput, high‐availability enterprise systems that meet strict standards for reliability, scalability, and performance Strong proficiency in asynchronous programming paradigms and event-driven architecture patterns Working knowledge of Web3 libraries (Web3J, Web3JS) and their application in enterprise contexts Demonstrated familiarity with ...

Lead Web3 Engineer - Digital Assets Platform

Hiring Organisation
Citigroup
Location
London, UK
Employment Type
Full-time
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 ...

Android Developer

Location
United Kingdom
vision, speech APIs) we aren't looking for someone who's only AI experience is using AI in their development workflow 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 ...

Android Developer

Location
City of Edinburgh, Scotland, 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 ...

Android Developer

Location
Manchester, 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 ...

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 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 ...

c# developer in financial trading

Location
Greater London, England, United Kingdom
distributed systems, microservices, and high-frequency data handling Contribute to strategic platform decisions with key stakeholders and senior engineers Требования: Strong C#/.NET programming skills Solid computer science fundamentals, including data structures, algorithms, and concurrency At least 1 year of professional development experience Comfortable working in a fast … paced, agile, test-driven environment Будет плюсом: experience with complex systems in financial or mission-critical contexts, familiarity with multithreading, asynchronous programming, and performance tuning Условия: Bonus and comprehensive benefits Hybrid work with remote work part of the week Access to an unlimited technology budget and tools, hardware ...

AI engineer

Location
Greater London, England, United Kingdom
grow fast. What You’ll Bring Deep technical expertise in the modern AI stack (LangChain/LlamaIndex, DSPy, or similar) Mastery of Python and asynchronous programming , with a focus on building high-performance AI backends. Experience working with LLMs , vector databases , and retrieval-augmented generation (RAG). Strong ...