276 to 300 of 3,899 JavaScript Jobs

seeking a Java Full Stack Developer with React expertise for a long-term modernization initiative. This position is 60% backend (Java/Spring Boot) and 40% frontend (React/JavaScript), with a focus on UI performance, API integrations, and scalable solutions. You'll collaborate with over 20 teams, modernizing APIs, enhancing UI frameworks, and improving overall system performance. This is … a hands-on development role, ideal for someone who loves coding and building end-to-end applications. What We're Looking For: Strong experience with React.js, JavaScript, and UI frameworks Solid backend development using Java and Spring Boot Expertise in API integration and frontend optimization Practical knowledge of CI/CD pipelines, Jenkins, and Kubernetes Familiarity with Postgres, Cassandra, and … cloud environments (Azure/AWS) Key Responsibilities: Build and optimize frontend applications using React.js, Redux, and JavaScript Design and develop microservices with Java Spring Boot Enhance UI/UX performance, responsiveness, and usability Develop and modernize REST APIs for front-end consumption Support DevOps automation, CI/CD pipelines, and Kubernetes deployments Work closely with cross-functional teams to recommend More ❯

Senior Full Stack Software Engineer Tech : AWS, NodeJS, TypeScript, JavaScript, ReactJS, React Native Why? start-up financial services, revolutionising the industry Location : Hybrid - 1/2 days in the office (Central London) Our Client A new UK-based financial services provider is launching credit card, personal loans and insurance offerings aimed at delivering fair, flexible, and user-friendly financial products … similar role with a strong portfolio of projects. Expertise in Node.js and AWS Lambda for serverless backend services. Proficiency in React with Next.js for frontend development. Proficiency in TypeScript, JavaScript and experience with infrastructure as code using Terraform. Beneficial experience of React Native Understanding of RESTful APIs and web application architecture. Experience in a start-up environment. Bachelor’s or … Master’s degree in Computer Science, Engineering, or a related field, or equivalent experience. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud message APIs and More ❯

Senior Full Stack Software Developer Tech : AWS, NodeJS, TypeScript, JavaScript, ReactJS, React Native Why? start-up financial services, revolutionising the industry Location : Hybrid - 1/2 days in the office (Central London) Our Client A new UK-based financial services provider is launching credit card, personal loans and insurance offerings aimed at delivering fair, flexible, and user-friendly financial products … similar role with a strong portfolio of projects. Expertise in Node.js and AWS Lambda for serverless backend services. Proficiency in React with Next.js for frontend development. Proficiency in TypeScript, JavaScript and experience with infrastructure as code using Terraform. Ideal experience with React Native Understanding of RESTful APIs and web application architecture. Experience in a start-up environment. Bachelor’s or … Master’s degree in Computer Science, Engineering, or a related field, or equivalent experience. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud message APIs and More ❯

Senior Full Stack Software Engineer Tech : AWS, NodeJS, TypeScript, JavaScript, ReactJS, React Native Why? start-up financial services, revolutionising the industry Location : Hybrid - 1/2 days in the office (Central London) Our Client A new UK-based financial services provider is launching credit card, personal loans and insurance offerings aimed at delivering fair, flexible, and user-friendly financial products … similar role with a strong portfolio of projects. Expertise in Node.js and AWS Lambda for serverless backend services. Proficiency in React with Next.js for frontend development. Proficiency in TypeScript, JavaScript and experience with infrastructure as code using Terraform. Beneficial experience of React Native Understanding of RESTful APIs and web application architecture. Experience in a start-up environment. Bachelor’s or … Master’s degree in Computer Science, Engineering, or a related field, or equivalent experience. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud message APIs and More ❯

Senior Full Stack Software Developer Tech : AWS, NodeJS, TypeScript, JavaScript, ReactJS, React Native Why? start-up financial services, revolutionising the industry Location : Hybrid - 1/2 days in the office (Central London) Our Client A new UK-based financial services provider is launching credit card, personal loans and insurance offerings aimed at delivering fair, flexible, and user-friendly financial products … similar role with a strong portfolio of projects. Expertise in Node.js and AWS Lambda for serverless backend services. Proficiency in React with Next.js for frontend development. Proficiency in TypeScript, JavaScript and experience with infrastructure as code using Terraform. Ideal experience with React Native Understanding of RESTful APIs and web application architecture. Experience in a start-up environment. Bachelor’s or … Master’s degree in Computer Science, Engineering, or a related field, or equivalent experience. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud message APIs and More ❯

Senior Full Stack Software Engineer Tech : AWS, NodeJS, TypeScript, JavaScript, ReactJS, React Native Why? start-up financial services, revolutionising the industry Location : Hybrid - 1/2 days in the office (Central London) Our Client A new UK-based financial services provider is launching credit card, personal loans and insurance offerings aimed at delivering fair, flexible, and user-friendly financial products … similar role with a strong portfolio of projects. Expertise in Node.js and AWS Lambda for serverless backend services. Proficiency in React with Next.js for frontend development. Proficiency in TypeScript, JavaScript and experience with infrastructure as code using Terraform. Beneficial experience of React Native Understanding of RESTful APIs and web application architecture. Experience in a start-up environment. Bachelor’s or … Master’s degree in Computer Science, Engineering, or a related field, or equivalent experience. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud message APIs and More ❯

Senior Full Stack Software Developer Tech : AWS, NodeJS, TypeScript, JavaScript, ReactJS, React Native Why? start-up financial services, revolutionising the industry Location : Hybrid - 1/2 days in the office (Central London) Our Client A new UK-based financial services provider is launching credit card, personal loans and insurance offerings aimed at delivering fair, flexible, and user-friendly financial products … similar role with a strong portfolio of projects. Expertise in Node.js and AWS Lambda for serverless backend services. Proficiency in React with Next.js for frontend development. Proficiency in TypeScript, JavaScript and experience with infrastructure as code using Terraform. Ideal experience with React Native Understanding of RESTful APIs and web application architecture. Experience in a start-up environment. Bachelor’s or … Master’s degree in Computer Science, Engineering, or a related field, or equivalent experience. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud message APIs and More ❯

software solutions in C#.NET; Utilize Agile Methodology in software development life cycle (SDLC), including the design, development, and implemention of complex software applications using C#, ASP.NET, MVC 3, JQuery, JavaScript, Visual Studio and SQL Server; Design and implement web based user interface (UI) using HTML, CSS, JQuery and JavaScript; Use Dataset, DataTable, and DataReader objects of SQL namespace for data … delivery of high-quality software products. Design, implement, and maintain Azure and AWS infrastructure and services to meet the organizations cloud needs. Perform client side validations using JQuery and JavaScript; Utilize webservices in C#.Net in a service oriented architecture (SOA) environment; Develop data access components using ADO.NET, LINQ to Entities, and C#; Perform initial and regression testing to insure compatibility More ❯

Senior Software Developer Tech : AWS, NodeJS, TypeScript, JavaScript, ReactJS, React Native Why? scaling FinTech, revolutionising the industry Location : Hybrid - 1-2 days in the office (Central London) Our Client A new UK-based financial services provider is launching credit card, personal loans and insurance offerings aimed at delivering fair, flexible, and user-friendly financial products to consumers. The organisation is … Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field, or equivalent experience. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud More ❯

Senior Software Engineer Tech : AWS, NodeJS, TypeScript, JavaScript, ReactJS, React Native Why? scaling FinTech, revolutionising the industry Location : Hybrid - 1-2 days in the office (Central London) Our Client A new UK-based financial services provider is launching credit card, personal loans and insurance offerings aimed at delivering fair, flexible, and user-friendly financial products to consumers. The organisation is … Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field, or equivalent experience. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud More ❯

Senior Full Stack Developer Tech : AWS, NodeJS, TypeScript, JavaScript, ReactJS, React Native Why? scaling FinTech, revolutionising the industry Location : Hybrid - 1-2 days in the office (Central London) Our Client A new UK-based financial services provider is launching credit card, personal loans and insurance offerings aimed at delivering fair, flexible, and user-friendly financial products to consumers. The organisation … Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field, or equivalent experience. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud More ❯

Full Stack .NET Developer - Azure - Preston Full Stack C# .NET Developer with experience in both back-end C# .NET/.NET Core development and front-end JavaScript development (Vue.js/Angular/React, etc) is required by a leading company in Preston. You should also have some development experience in the Cloud with Azure & third-party API integrations There is … work on some cutting-edge software development projects in AI advancement, along with several greenfield projects ready to go. Key skills: Full-stack development experience in both C#.NET and JavaScript (Vue.js/Angular/React etc) with a passion for embracing new front-end technologies. Azure experience with a good appreciation of Azure Functions, Storage Accounts, Service Bus, Application Insights … + Benefits + Hybrid working (2 days in the office). To apply, send your CV to matthew.leach @ circlerecruitment.com or press apply now: Keywords: Full Stack C #.NET Developer - JavaScript - Vue.JS - React - Angular JS - MVC - ASP.NET - .NET Core - Azure - Cloud -TDD - Docker - Preston - Blackpool - Blackburn - Bolton - Warrington - Liverpool - Wigan - Manchester Circle Recruitment is acting as an Employment Agency in relation More ❯

Full Stack PHP Developer - Preston Full Stack PHP Developer, with excellent Laravel, PHP, JavaScript (ideally Vue.JS) & Cloud (AWS or Azure) experience is required by a leading company based in Preston. Containerisation, TDD or .NET skills would be a bonus. Due to investment and a pipeline of brand-new green field work, they need a couple of Full Stack Developers to … an old legacy system and building a brand new cloud-based system over the next 2 years Essential Skills: * 3+ Years experience with PHP Full Stack Development (ideally Laravel)* JavaScript experience with one or more JS frameworks (Vue, React or Angular), preferably Vue and have a good understanding of modern frontend and backend technologies * Cloud-based development in either AWS … no more than 2 days in the office per week (you are not tied down to the days you are in) Keywords: PHP Full Stack Developer/Laravel/JavaScript/Vue.JS/AWS/Azure/Cloud/TDD/Docker/Preston/Blackpool/Blackburn/Bolton/Warrington/Liverpool/Wigan/Manchester Circle Recruitment More ❯

ll be part of a high-calibre team solving complex engineering challenges and shaping the future of risk technology across capital markets. &##Core languages: C#, Python, Rust Front end: JavaScript/TypeScript/Angular/RX JS Infrastructure: Kubernetes, containers, DevOps, CI/CD WebAssembly, AI integration, and AI frameworks This is a genuine technologist s role building critical software … of C#, Python or Java , ideally with working knowledge of another. Deep understanding of software architecture, concurrency, performance optimisation , and system reliability . Demonstrable front-end engineering experience using JavaScript, TypeScript, Angular or React Familiarity with containerisation (Kubernetes, Docker) and modern DevOps practices . Experience in front-office risk, trading, or analytics systems within financial markets. Exposure to AI and More ❯

Senior Software Engineer Java/JavaScript/Geospatial £(Apply online only) per day, Outside IR35 Initial 6 month Contract Fully Remote (Must be based in UK) Our exclusive Consultancy partner urgently requires the services of 4 Senior Software Developers to join a project team, delivering services for a high profile Government customer. No SC Clearance is required, however experience working … be adaptable, and able to identify where their role can support other areas of the team. Technical Expertise: Programming Proficiency: Advanced skills in full stack development using Java and Javascript, with demonstrated experience in building production-grade applications. At least one of these roles should have experience of Delphi Cloud Architecture: Understanding of cloud-native architectures, particularly in AWS or More ❯

and integrations that handle large volumes of transactions. You'll have a focus on backend C# .Net core but will have exposure across the full tech stack through to JavaScript/React within an AWS cloud based environment with Docker, Terraform (IaC), TeamCity, SQL and Redis; you'll gain exposure to a wide range of technology and will be able … .Net Core backend development experience You have experience of building scalable, reliable and secure web applications using modern techniques You have experience of implementing frontend applications and have some JavaScript/TypeScript or React experience You have a good knowledge of AWS You're collaborative with great communication, mentoring and leadership skills What's in it for you: As a More ❯

and integrations that handle large volumes of transactions. You'll have a focus on backend C# .Net core but will have exposure across the full tech stack through to JavaScript/React within an AWS cloud based environment with Docker, Terraform (IaC), TeamCity, SQL and Redis; you'll gain exposure to a wide range of technology and will be able … .Net Core backend development experience You have experience of building scalable, reliable and secure web applications using modern techniques You have experience of implementing frontend applications and have some JavaScript/TypeScript or React experience You have a good knowledge of AWS You're collaborative with great communication, mentoring and leadership skills Apply now to find out more about this More ❯

and integrations that handle large volumes of transactions. You'll have a focus on backend C# .Net core but will have exposure across the full tech stack through to JavaScript/React within an AWS cloud based environment with Docker, Terraform (IaC), TeamCity, SQL and Redis; you'll gain exposure to a wide range of technology and will be able … .Net Core backend development experience You have experience of building scalable, reliable and secure web applications using modern techniques You have experience of implementing frontend applications and have some JavaScript/TypeScript or React experience You have a good knowledge of AWS You're collaborative with great communication, mentoring and leadership skills What's in it for you: As a More ❯

A ' Tech for good ' organisation based in Edinburgh is looking for a couple of Software Engineers , with good experience using Java and JavaScript (ideally Reactjs)to join their hybrid team. Work with modern technologies, in a great culture, with amazing benefits. They've been operating very successfully for several years now and they offer an award winning service that helps … understand the importance of quality code. You'll ideally have experience with most of the following; ** Java (ideally SpringBoot) ** Microservices ** Test Driven Development ** Front end Development (HTML, CSS and JavaScript) ** Working with Databases (ideally PostgreSQL) Experience with the following is highly desirable; ** DevOps; Docker and Kubernetes ** Cloud Services (AWS, Azure, GCP, OpenShift) ** Reactjs + TypeScript This opportunity would be ideal More ❯

and deliver under pressure in complex technical environments. Tech Stack & Environment You’ll work across a diverse range of modern technologies, including: Core languages: C#, Python, Rust Front end: JavaScript/TypeScript/Angular/RX JS Infrastructure: Kubernetes, containers, DevOps, CI/CD Emerging tech: WebAssembly, AI integration, and AI frameworks Systems: Cross-platform, distributed, scalable real-time environments … Proven experience designing and developing complex, distributed, real-time systems . Deep understanding of software architecture, concurrency, performance optimisation , and system reliability . Demonstrable front-end engineering experience using JavaScript, TypeScript, Angular or React Familiarity with containerisation (Kubernetes, Docker) and modern DevOps practices . Experience in front-office risk, trading, or analytics systems within financial markets. Desirable/Highly Valued More ❯

and deliver under pressure in complex technical environments. Tech Stack & Environment You’ll work across a diverse range of modern technologies, including: Core languages: C#, Python, Rust Front end: JavaScript/TypeScript/Angular/RX JS Infrastructure: Kubernetes, containers, DevOps, CI/CD Emerging tech: WebAssembly, AI integration, and AI frameworks Systems: Cross-platform, distributed, scalable real-time environments … Proven experience designing and developing complex, distributed, real-time systems . Deep understanding of software architecture, concurrency, performance optimisation , and system reliability . Demonstrable front-end engineering experience using JavaScript, TypeScript, Angular or React Familiarity with containerisation (Kubernetes, Docker) and modern DevOps practices . Experience in front-office risk, trading, or analytics systems within financial markets. Desirable/Highly Valued More ❯

and deliver under pressure in complex technical environments. Tech Stack & Environment You’ll work across a diverse range of modern technologies, including: Core languages: C#, Python, Rust Front end: JavaScript/TypeScript/Angular/RX JS Infrastructure: Kubernetes, containers, DevOps, CI/CD Emerging tech: WebAssembly, AI integration, and AI frameworks Systems: Cross-platform, distributed, scalable real-time environments … Proven experience designing and developing complex, distributed, real-time systems . Deep understanding of software architecture, concurrency, performance optimisation , and system reliability . Demonstrable front-end engineering experience using JavaScript, TypeScript, Angular or React Familiarity with containerisation (Kubernetes, Docker) and modern DevOps practices . Experience in front-office risk, trading, or analytics systems within financial markets. Desirable/Highly Valued More ❯

and deliver under pressure in complex technical environments. Tech Stack & Environment You’ll work across a diverse range of modern technologies, including: Core languages: C#, Python, Rust Front end: JavaScript/TypeScript/Angular/RX JS Infrastructure: Kubernetes, containers, DevOps, CI/CD Emerging tech: WebAssembly, AI integration, and AI frameworks Systems: Cross-platform, distributed, scalable real-time environments … Proven experience designing and developing complex, distributed, real-time systems . Deep understanding of software architecture, concurrency, performance optimisation , and system reliability . Demonstrable front-end engineering experience using JavaScript, TypeScript, Angular or React Familiarity with containerisation (Kubernetes, Docker) and modern DevOps practices . Experience in front-office risk, trading, or analytics systems within financial markets. Desirable/Highly Valued More ❯

and deliver under pressure in complex technical environments. Tech Stack & Environment You’ll work across a diverse range of modern technologies, including: Core languages: C#, Python, Rust Front end: JavaScript/TypeScript/Angular/RX JS Infrastructure: Kubernetes, containers, DevOps, CI/CD Emerging tech: WebAssembly, AI integration, and AI frameworks Systems: Cross-platform, distributed, scalable real-time environments … Proven experience designing and developing complex, distributed, real-time systems . Deep understanding of software architecture, concurrency, performance optimisation , and system reliability . Demonstrable front-end engineering experience using JavaScript, TypeScript, Angular or React Familiarity with containerisation (Kubernetes, Docker) and modern DevOps practices . Experience in front-office risk, trading, or analytics systems within financial markets. Desirable/Highly Valued More ❯

a full-time role, with strong expertise in designing and developing scalable, high-performance applications. Eligibility: H4 EAD/Green Card/US Citizen Frontend: Angular, React, HTML5, CSS3, JavaScript Backend: Java, Spring Boot, Spring MVC, Hibernate/JPA, Microservices, RESTful APIs, SQL/MySQL/PostgreSQL, JUnit, Mockito DevOps/Cloud: Jenkins, Git, Docker, Kubernetes, AWS If youre interested More ❯