701 to 725 of 733 Node.js Jobs in the UK

solutions (e.g., SQLite, Hive) to ensure data reliability during offline usage. Develop efficient data synchronization mechanisms to push local data to cloud endpoints. Integrate mobile apps with backend APIs (Node.js) hosted on Azure. Ensure secure communication and data transmission between the app and cloud services. Performance Optimization : Profile and optimize app performance to handle continuous data streaming from BLE devices. … Experience with local data storage solutions (e.g., SQLite, Hive) and offline-first design principles. Hands-on experience with RESTful APIs, secure authentication, and integration with backend systems. Knowledge of Node.js for understanding backend endpoints and integrations. Familiarity with Azure services, including App Services, SQL Database, and monitoring tools. Expertise in troubleshooting issues like data loss, BLE connection stability, and performance More ❯

and building developer resources (APIs, SDKs, technical documentation). Solid experience across Integrations, Full Stack Web Development, and Cloud Architecture. Proficiency in one or more of the following: JavaScript, Node.js, Python (or equivalent modern frameworks/languages). Demonstrated success in leading technical teams, particularly those focused on integrations or developer-facing products. Exceptional interpersonal and communication skills – able to … of Integrations/Technical Integration Lead/API Integration Manager/SaaS Integration Engineer/Full Stack Developer/Solutions Architect/Cloud Engineer/Platform Integrations Lead/Node.js/JavaScript/Python/API/Cloud Architecture/Swagger/Computer Science/Software Engineering/Integration Architect/API Solutions Lead/Technical Project Manager/SaaS More ❯

Join the Digital Revolution as a Frontend Developer! Are you a talented Front-End Developer ready to shape the future of digital experiences? Our innovative tech client is seeking individuals like you to contribute to their cutting-edge digital platform. More ❯

Join the Digital Revolution as a Frontend Developer! Are you a talented Front-End Developer ready to shape the future of digital experiences? Our innovative tech client is seeking individuals like you to contribute to their cutting-edge digital platform. More ❯

This Senior JavaScript Engineer role is with a startup who are one of fastest growing in their field. They've just gone through a round of funding and need to up their productivity so are looking for an extra pair More ❯

WunderGraph is growing fast, and we're on a mission to redefine how companies leverage GraphQL Federation at scale. Our North Star is to enable collaboration across small and large organizations, leveraging APIs as the backbone of growing the business. More ❯

Senior QA Engineer Department: Engineering Employment Type: Permanent - Full Time Location: London Reporting To: Janosh Orosz Compensation: £75,000 - £107,000/year Description Senior Test Automation Engineer London/Hybrid Freetrade's mission is to become the default place More ❯

senior, mid, junior). You'll have the scope to shape architecture and influence the company's broader technology direction. The role will involve: Leading backend development projects with Node.js Designing, developing, and maintaining scalable, efficient systems Overseeing code reviews, architecture discussions, and integration processes Collaborating with stakeholders to gather requirements and deliver solutions Coordinating with QA, Product, and Project … Office to ensure project delivery Mentoring and providing leadership to developers What you'll bring: Strong backend development experience with Node.js (5+ years) SQL experience; RabbitMQ/Kafka and MongoDB/NoSQL a plus Technical leadership or mentorship experience (line management beneficial but not essential) Background in small to medium-sized organisations preferred Ability to balance hands-on coding with More ❯

to the scaling up of Backend engineers in multiple squads. This will include conducting technical interviews to identify and onboard talented engineers. About your role as Staff Engineer, Backend (Nodejs) Design, build, and maintain features for domain applications Provide technical leadership and manage dependencies Conduct design and code reviews Support and help grow domain team members by helping them with … code to improve or extend applications Manage and provide assistance for current software applications Provide technical leadership and mentorship to others About your experience Solid backend engineering experience with Node.js and Go Strong foundation in programming fundamentals Excellent communication skills Proven problem-solving abilities and a willingness to help others achieve their goals Extensive experience with Git in a team More ❯

our global team, you'll be working with cutting-edge technologies and will have the opportunity to develop a wide range of new skills on the job. As a Node.JS Application Developer, you will: Be responsible for designing, building, and configuring applications to meet business process and application requirements. You will be expected to perform independently and become a subject More ❯

ML frameworks (TensorFlow, PyTorch). Strong understanding of LLMs, NLP, and machine learning algorithms. MLOps knowledge and experience with version control systems. Back-end engineering skills in Python or Node.js (willingness to upskill in Node.js/TypeScript). Ability to explain AI concepts to technical and non-technical stakeholders. Problem-solving mindset and ability to lead AI-driven initiatives. Bonus More ❯

Title: Senior Full Stack Developer (React & Node) Salary: Up to £110,000 D.O.E Location: London (Hybrid) iO Associates is working with a global FinTech powerhouse that's leading the charge in delivering high-performance electronic trading platforms for institutional clients - and they're now looking for a Senior Full Stack Developer to join their growing engineering team! This is a … a key role in building scalable, client-facing solutions using modern JavaScript technologies. What you'll be doing: Designing and developing robust full stack applications using React.js (v16+) and Node.js Working directly with proprietary trading engines to create high-performance tools Building white-label trading platforms tailored to client needs Collaborating with global trading and research teams to deliver innovative More ❯

vulnerabilities, and optimise Programs Work with SPL Tokens, Token 2022, and Metaplex Core for NFT and token integrations Develop client libraries for integrating with our Programs using Rust and Node.js Collaborate with backend engineers and product teams to define and implement protocol features Monitor on-chain activity , debug issues, and optimise performance Tech Stack Languages & Frameworks: Rust, Anchor Solana Tools … SPL Token, Token 2022, Metaplex, Metaplex Core Testing: Rust, Node.js , Typescript Qualifications 3+ years of experience in Rust development 1+ years working with Solana Programs and Anchor framework Strong understanding of Solana's runtime, transaction execution, and security best practices Experience with DeFi, RWA (Real-World Assets), and staking mechanisms Knowledge of SPL Token standards and Metaplex NFT protocols Ability More ❯

driven environment, this role is for you. Important: Only candidates with active SC clearance can be considered. What You'll Do: Design and build robust backend services using Next.js, Node.js, and AWS Bedrock Architect and implement MCP servers to support dynamic agent creation and deployment Develop scalable, secure RESTful APIs and GraphQL endpoints Integrate AWS foundation models and optimise their … ensure seamless integration Set up and manage CI/CD pipelines using GitLab Contribute to containerisationand deployments on OpenShift What You'll Bring: 3+ years backend development experience with Node.js/Next.js Proven experience with AWS services (particularly Bedrock & AI/ML integrations) Strong understanding of REST APIs, microservices, and secure coding Experience with CI/CD pipelines (GitLab preferred More ❯

Full Stack Developer– London | Up to £80k Hexwired has partnered with a company who are a leading company in the SaaS sector. They are looking for a Full Stack Developer who will be building and shipping mobile applications. Although you More ❯

JavaScript Developers Requirements We are seeking JavaScript Developers with the following qualifications: Approximately 1 year of commercial experience Proficiency in Functional JavaScript Experience with Node.js Knowledge of React/Redux Familiarity with Express Candidates should have a keen eye for detail, experience with Test-Driven Development (TDD), and an understanding of good software design principles. Node.js Developer Position Blockchain Quant More ❯

years in a technical leadership role. Strong experience building and deploying crypto wallets, DeFi protocols , and working with Web3 tech stacks (e.g., EVM, Solidity, ethers.js/web3.js) . Strong NodeJS and React Native mobile development experience with experience launching and maintaining successful applications. Good C++ development experience and understanding of OS, Cryptography and Networking primitives. Experience building Native addons in … NodeJS is great to have. Desirable to have experience in building peer-to-peer (P2P) applications or distributed systems and decentralized communication models. Solid grasp of software architecture principles, system design patterns , and API integrations. Excellent leadership, problem-solving, and communication skills. Experience working in a high-growth, fast-paced startup environment. Bachelor's or Master's degree in Computer More ❯

senior, mid, junior). You'll have the scope to shape architecture and influence the company's broader technology direction. The role will involve: Leading backend development projects with Node.js Designing, developing, and maintaining scalable, efficient systems Overseeing code reviews, architecture discussions, and integration processes Collaborating with stakeholders to gather requirements and deliver solutions Coordinating with QA, Product, and Project … Office to ensure project delivery Mentoring and providing leadership to developers What you'll bring: Strong backend development experience with Node.js (5+ years) SQL experience; RabbitMQ/Kafka and MongoDB/NoSQL a plus Technical leadership or mentorship experience (line management beneficial but not essential) Background in small to medium-sized organisations preferred Ability to balance hands-on coding with More ❯

a strong background in software development. Day-to-day of the role: Design and implement robust AWS architectures and development frameworks. Manage Kubernetes and Openshift environments. Develop applications using NodeJS, NextJS, and Typescript. Implement and manage infrastructure as code practices. Utilize Redis, RClone, Nifi, Helm, and Tekton in various development stages. Lead technical teams and provide architectural guidance and support … and industry best practices. Required Skills & Qualifications: Proven experience as a Technical Architect, particularly in designing and implementing solutions using AWS. Strong experience with Kubernetes and Openshift. Proficient in NodeJS, NextJS, and Typescript. Experience with infrastructure as code. Familiarity with Redis, RClone, Nifi, Helm, and Tekton. Industry experience within government sectors is highly beneficial. Must possess or be able to More ❯

future. Currently looking for: Blockchain Integration Specialist Remote Key responsibilities Build, improve and maintain clusters of blockchain daemons/consensus nodes in a scalable and highly redundant way Develop Node/JS workers, in Bitfinex's microservices infrastructure, that interface with blockchain nodes API (REST/Websocket) interfaces Implement robust monitoring tools to control the stability of Bitfinex's blockchain … infrastructure Create good quality policies, procedures and technical documentation Minimum Requirements Previous experience in interacting with blockchain nodes (ie. Bitcoin, Ethereum) Strong passion for Bitcoin and other cryptocurrencies Advanced Node/JavaScript skills Familiar with microservices architecture and REST APIs Ability to quickly learn new technologies Advanced understanding of security practices Nice to have Solidity, Rust or Golang skills are More ❯

future. Currently looking for: Blockchain Integration Specialist Remote Key Responsibilities Build, improve and maintain clusters of blockchain daemons/consensus nodes in a scalable and highly redundant way. Develop Node/JS workers, in Bitfinex's microservices infrastructure, that interface with blockchain nodes API (REST/Websocket) interfaces. Implement robust monitoring tools to control the stability of Bitfinex's blockchain … Create good quality policies, procedures and technical documentation. Minimum Requirements Previous experience in interacting with blockchain nodes (ie. Bitcoin, Ethereum). Strong passion for Bitcoin and other cryptocurrencies. Advanced Node/JavaScript skills. Familiar with microservices architecture and REST APIs. Ability to quickly learn new technologies. Advanced understanding of security practices. Nice to Have Solidity, Rust or Golang skills are More ❯

company that's making a real impact in online education! This is a fantastic opportunity to work in a highly collaborative, flexible, and fast-paced environment, using React, TypeScript, Node.js, and MongoDB to build and enhance a platform that reaches millions. If you're looking to join a dynamic team where you can make a real difference and grow your … the company Skills and Experience Extensive experience with front-end technologies, including React and Redux, for building dynamic and scalable user interfaces. Strong expertise in back-end development using Node.js, ensuring efficient and high-performance applications. Proficient in working with non-relational databases, particularly MongoDB, for flexible and scalable data management. Proven experience in a product-led company, with a More ❯

term solutions. Manage high-impact incidents to ensure minimal business disruption. Server & Application Support: Troubleshoot server issues across cloud (AWS), on-premise, and embedded environments. Support applications written in Node.js and manage FreeSwitch systems. Apply over-the-air firmware updates and monitor system performance. SIP, VoIP & Network Management: Maintain and troubleshoot SIP-based communication systems including VoIP and VoLTE. Configure … knowledge of Linux and Windows systems, and experience with FreeSwitch. Experience with AWS infrastructure and cloud services. Deep understanding of SIP, VoIP, VoLTE, STUN, and firewall bridging. Proficiency in Node.js application support and server diagnostics. Hands-on experience using tools for SIP analysis, such as Wireshark, SIP Traces, or packet analysers. Excellent problem-solving and communication skills. Bachelor's degree More ❯

term solutions. Manage high-impact incidents to ensure minimal business disruption. Server & Application Support: Troubleshoot server issues across cloud (AWS), on-premise, and embedded environments. Support applications written in Node.js and manage FreeSwitch systems. Apply over-the-air firmware updates and monitor system performance. SIP, VoIP & Network Management: Maintain and troubleshoot SIP-based communication systems including VoIP and VoLTE. Configure … knowledge of Linux and Windows systems, and experience with FreeSwitch. Experience with AWS infrastructure and cloud services. Deep understanding of SIP, VoIP, VoLTE, STUN, and firewall bridging. Proficiency in Node.js application support and server diagnostics. Hands-on experience using tools for SIP analysis, such as Wireshark, SIP Traces, or packet analysers. Excellent problem-solving and communication skills. Bachelor's degree More ❯

term solutions. Manage high-impact incidents to ensure minimal business disruption. Server & Application Support: Troubleshoot server issues across cloud (AWS), on-premise, and embedded environments. Support applications written in Node.js and manage FreeSwitch systems. Apply over-the-air firmware updates and monitor system performance. SIP, VoIP & Network Management: Maintain and troubleshoot SIP-based communication systems including VoIP and VoLTE. Configure … knowledge of Linux and Windows systems, and experience with FreeSwitch. Experience with AWS infrastructure and cloud services. Deep understanding of SIP, VoIP, VoLTE, STUN, and firewall bridging. Proficiency in Node.js application support and server diagnostics. Hands-on experience using tools for SIP analysis, such as Wireshark, SIP Traces, or packet analysers. Excellent problem-solving and communication skills. Bachelor’s degree More ❯