201 to 225 of 854 JavaScript Jobs in London

Proficient in C++11 or later, with a strong understanding of memory management, concurrency, and object-oriented design . Hands-on experience with AngularJS and front-end development ( HTML, CSS, JavaScript ). Familiarity with REST APIs , JSON , and web service integration . Experience working in software maintenance/support roles with bug fixing and system enhancements. Strong debugging and problem-solving More ❯

Proficient in C++11 or later, with a strong understanding of memory management, concurrency, and object-oriented design . Hands-on experience with AngularJS and front-end development ( HTML, CSS, JavaScript ). Familiarity with REST APIs , JSON , and web service integration . Experience working in software maintenance/support roles with bug fixing and system enhancements. Strong debugging and problem-solving More ❯

Proficient in C++11 or later, with a strong understanding of memory management, concurrency, and object-oriented design . Hands-on experience with AngularJS and front-end development ( HTML, CSS, JavaScript ). Familiarity with REST APIs , JSON , and web service integration . Experience working in software maintenance/support roles with bug fixing and system enhancements. Strong debugging and problem-solving More ❯

high standards of performance, scalability, security, and observability (using tools like DataDog) What We’re Looking For Significant experience in software engineering, ideally in a senior capacity Expertise in JavaScript/TypeScript , Node.js , React , GraphQL , and AWS (EKS, Lambda, RDS) Strong background in building and maintaining robust APIs (REST and GraphQL) Proficiency with automated testing frameworks such as Jest and More ❯

high standards of performance, scalability, security, and observability (using tools like DataDog) What We’re Looking For Significant experience in software engineering, ideally in a senior capacity Expertise in JavaScript/TypeScript , Node.js , React , GraphQL , and AWS (EKS, Lambda, RDS) Strong background in building and maintaining robust APIs (REST and GraphQL) Proficiency with automated testing frameworks such as Jest and More ❯

high standards of performance, scalability, security, and observability (using tools like DataDog) What We’re Looking For Significant experience in software engineering, ideally in a senior capacity Expertise in JavaScript/TypeScript , Node.js , React , GraphQL , and AWS (EKS, Lambda, RDS) Strong background in building and maintaining robust APIs (REST and GraphQL) Proficiency with automated testing frameworks such as Jest and More ❯

high standards of performance, scalability, security, and observability (using tools like DataDog) What We’re Looking For Significant experience in software engineering, ideally in a senior capacity Expertise in JavaScript/TypeScript , Node.js , React , GraphQL , and AWS (EKS, Lambda, RDS) Strong background in building and maintaining robust APIs (REST and GraphQL) Proficiency with automated testing frameworks such as Jest and More ❯

in low-management settings Product-focused engineer who thrives in flat, startup-style team structures Good grasp of engineering best practices, code quality, and system design Tech Stack Python JavaScript/TypeScript SQL AWS (Cloud Infrastructure) Interview Process Technical Discussion (30-60 mins) Collaborative Co-working Session (60-90 mins) - Solve a real-world problem together via screen share Both More ❯

experience through SQL Server Reporting Services (SSRS) and FetchXML .NET Framework Version 4.5 or above including strong WCF\ Web API experience Knowledge of Web development, HTML, CSS, JSON, XML, Javascript and SQL C# and OOPS concepts Nice to have skills Microsoft Azure knowledge Experience of data integration and data migration projects Power BI Reporting What education and certification credentials are More ❯

Microsoft Co-pilot Studio Experience with ALM Accelerator for Power Platform Excellent stakeholder management and relationship building skills Background in developing with C#, .NET, Web Services, Web Forms, MVC, JavaScript, jQuery, CSS, HTML, React, Web APIs and Visual Studio, API integrations Skilled in creating interface definitions Exposure to working with Agile development framework Experience with software design and development in More ❯

experience through SQL Server Reporting Services (SSRS) and FetchXML .NET Framework Version 4.5 or above including strong WCF\ Web API experience Knowledge of Web development, HTML, CSS, JSON, XML, Javascript and SQL C# and OOPS concepts Good to have experience and knowledge of Microsoft Azure Power Apps and Portal Field Services Customer Insight What education and certification credentials are needed More ❯

have: Demonstrable experience building fault tolerant and horizontally scalable distributed applications/systems dealing with distributed system specific concerns Demonstrable experience writing production code in either Python, Go, Rust, JavaScript/TypeScript or Java Strong problem solving skills We'd love to see: Knowledge of Database Systems and trade offs in the distributed systems Familiarity with API Designs Familiarity with More ❯

have experience designing and maintaining APIs and distributed systems. You have experience building intuitive user interfaces using modern frontend frameworks like React or Svelte. You have strong proficiency in JavaScript/TypeScript and experience with modern frontend development tools. You have excellent communication skills and the ability to work effectively in a collaborative team environment, and are eager to learn. More ❯

Strong problem-solving and communication skills, with the ability to work effectively in collaborative teams. Exposure to agile delivery methods. Experience with other development languages or frameworks such as JavaScript, Java, Python, or .NET - or a strong willingness to learn and adapt to new technologies as required. Qualifications & Certifications Salesforce Platform Developer I - Required Salesforce Platform Developer II - Desirable Other More ❯

as hands on experience on AWS services like SageMaker and Bedrock, and programming skills such as Python, R, SQL, Java, Julia, Scala, Spark/Numpy/Pandas/scikit, JavaScript Amazon is an equal opportunities employer. We believe passionately that employing a diverse workforce is central to our success. We make recruiting decisions based on your experience and skills. We More ❯

field (including computational, numerate or life sciences), or equivalent experience. Cloud experience (e.g. Google Cloud and cloud run preferred) including core web application infrastructure is essential. Strong skills in JavaScript/TypeScript and Python, ensuring best practices are followed for clean and scalable code. Demonstrated ability to work directly with designers, particularly using Figma, to convert design prototypes into engaging More ❯

field (including computational, numerate or life sciences), or equivalent experience. Cloud experience (e.g. Google Cloud and cloud run preferred) including core web application infrastructure is essential. Strong skills in JavaScript/TypeScript and Python, ensuring best practices are followed for clean and scalable code. Demonstrated ability to work directly with designers, particularly using Figma, to convert design prototypes into engaging More ❯

for a global audience Strong understanding of application testing, diagnostics, and performance tuning Strong understanding of TDD and BDD methodologies. And workable knowledge of Data ingestion pipelines Front-end JavaScript frameworks like Angular & React and Vue AWS Azure . click apply for full job details More ❯

clear evidence of active contribution to such projects. The role offers flexible working arrangements, with travel to the client's offices in Windsor twice a month Key skills include: JavaScript/TypeScript React Cloud-native development (AWS/Azure), CI/CD Ability to collaborate with designers to create user-friendly AI experiences Desirable Experience Experience in innovation teams, startups More ❯

and Risk team to build and extend FX Options and Risk frontend application suite. Essential Skills: Very good knowledge and experience in Web Technologies, tools and frameworks, HTML, CSS, JavaScript and React. Knowledge or experience of agile development (e.g. XP, SCRUM, Kanban) and continuing integration. Experience in UI design, optimisation, scalability and reliability. Excellent problem solving and analytical skills in More ❯

and Risk team to build and extend FX Options and Risk frontend application suite. Essential Skills: Very good knowledge and experience in Web Technologies, tools and frameworks, HTML, CSS, JavaScript and React. Knowledge or experience of agile development (e.g. XP, SCRUM, Kanban) and continuing integration. Experience in UI design, optimisation, scalability and reliability. Excellent problem solving and analytical skills in More ❯

A degree in a STEM discipline (Science, Technology, Engineering, or Mathematics) Strong experience with Python Experience or a solid understanding of finance or financial systems Fullstack development experience using JavaScript and React Experience with Flask or similar Python web frameworks Familiarity with functional programming Experience working with PostgreSQL or other SQL databases Knowledge of Docker and containerized environments Exposure to More ❯

platforms Prototyping and experimenting with new technologies Working in agile teams to deliver high-quality software What you'll bring: 2+ years' experience in software development Proficiency in Python, JavaScript, or C# Knowledge of relational databases and RESTful APIs Strong problem-solving and communication skills Curiosity and eagerness to learn What's on offer: Hybrid working in central London (Covent More ❯

query requirements whenever you see gaps between the Account Management team and development team. Qualifications/Requirements Expertise in Shopify development and theme customization Strong understanding of HTML, CSS, JavaScript, and Liquid Experience with Shopify’s APIs and App integrations Knowledge of SEO best practices and site performance optimization Ability to work collaboratively with designers and the ability to independently More ❯

query requirements whenever you see gaps between the Account Management team and development team. Qualifications/Requirements Expertise in Shopify development and theme customization Strong understanding of HTML, CSS, JavaScript, and Liquid Experience with Shopify’s APIs and App integrations Knowledge of SEO best practices and site performance optimization Ability to work collaboratively with designers and the ability to independently More ❯