51 to 75 of 627 JavaScript Jobs in London

Software Engineer, Portfolio Management

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
background preferable) SQL Server and data analytical skills Thorough understanding of object orientated programming, computing fundamentals and data structures Experience with Web technologies (HTML, JavaScript Frameworks e.g., Vue, React, Angular, CSS, less) Ability to deliver all aspects of a project from start to finish unassisted Experience with test driven development ...

Principal Automation Test Consultant

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Proficiency in performance testing tools like JMeter, Gatling, K6, Neoload, or Webload Strong coding skills in at least one language such as Java, TypeScript JavaScript, Python, C#, Scala, or PHP Experience designing and building automation frameworks Familiarity with Agile development environments ( SCRUM, Kanban, TDD, BDD ) Implementing pipelines using common tooling ...

Lead Software Engineer - C#, SQL Server Database

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Skills Formal training or certification in software engineering concepts Hands‐on experience in system design, application development, testing, and operational stability Proficiency coding with JavaScript and using front‐end UI frameworks such as React or Angular Experience building ASP.NET MVC, Web API, or REST style applications Proficiency coding in C# ...

Senior Software Engineer

Hiring Organisation
Akkodis
Location
City Of London, England, United Kingdom
cloud platforms (e.g., AWS, Azure, Google Clou d).Familiarity with other programming languages such as Java or C ++.Understanding of front-end technologies (e.g., JavaScript, HTML, CSS) is a pl us.Prior experience in a financial services or trading environme nt.Strong analytical and mathematical skil ls. ...

AI Automation Tester

Hiring Organisation
VIQU IT Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£450 - £525 per day
experience with automation tools such as: Selenium, Cypress, Playwright, Karate, Postman/Newman Strong programming and Scripting skills using languages such as: Java, JavaScript/TypeScript, Python, C# Experience testing web, API, and microservices-based applications. Familiarity with CI/CD tools such as GitHub Actions, Jenkins, Azure DevOps ...

Technical Lead

Hiring Organisation
Anson Mccade
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£95,000
system design background Experience delivering enterprise applications using AWS, Azure or GCP Strong engineering experience with technologies such as Python, SQL, Java, .NET or JavaScript Experience working with modern enterprise data technologies such as Snowflake and/or Databricks Good understanding of enterprise data platforms, data architecture, on-premise lakehouse ...

Full-Stack Software Engineer III

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
applied experience Hands-on practical experience in system design, application development, testing, and operational stability Proficiency in modern programming languages, with strong experience in JavaScript/TypeScript (React, Node.js) required Experience developing, debugging, and maintaining code in a large-scale environment using modern programming and database querying languages Solid understanding ...

System Architect - Fusion Platform

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
leadership, with the ability to mentor and influence teams. Excellent analytical, communication, and stakeholder management skills. Hands-on enterprise systems development experience (C#, Java, JavaScript/TypeScript, C++ or similar). Proficiency in cloud platforms (AWS preferred; Azure/GCP), containerisation, and microservices. Strong knowledge of APIs, system integration ...

Software Engineer

Hiring Organisation
BAE Systems
Location
Greater London, United Kingdom
Employment Type
Full Time
tech and cyber skills in the region. About you You will have experience in many of the following: Programming in one or more of JavaScript, Java, .Net, Python Collaboratively designing and building Proof of Concept or Production systems Source controlling your code with Version Control Systems, for example Git, Mercurial ...

Senior Software Engineer / Senior AI Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
SDLC, TDD, and code review. Data: Working with relational, columnar, and vector stores, grounded in sound data‐modelling principles. Languages: Python, Java, TypeScript/JavaScript, SQL, and relevant AI SDKs. Mentoring: Developing skills in mentoring engineers through pair programming and day‐to‐day collaboration. Communication: Clear written and verbal communication ...

Senior Forward Deployed ML Engineer, Agents

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
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-on with Docker, Kubernetes, CI/ ...

Lead AI Software Engineer - TRP Labs London

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
technical field, or equivalent practical experience. 8+ years of progressive software engineering experience developing applications in object‐oriented languages such as Java, Python, or JavaScript, including experience leading technical delivery across teams or major initiatives. Extensive hands‐on experience architecting and delivering cloud‐native solutions using AWS or equivalent, containerized ...

Solar Web UI Developer

Hiring Organisation
Standard Chartered Bank
Location
Greater London, United Kingdom
Employment Type
Full Time
review iterations for their deliveries, • Develop yourself towards the goal of becoming a senior full-stack developer. Skills and Experience Technical skills: • Versatile JavaScript (TypeScript) developer with good software design principles, • With 7+ years of relevant experience, • Expert in React, Redux, RX JS, NPM/Yarn, webpack, CSS, HTML ...

Principal Software Engineer (London)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
delivery of production‐grade software using a variety of languages and frameworks, including but not limited to: Java, C#/.NET, Python, TypeScript, JavaScript, React, Go, Ruby, Scala, R, and SQL Actively experimented with AI development tools and translated that experimentation into faster, higher‐quality delivery for your teams ...

Senior C# Developer- - SC Cleared

Hiring Organisation
Triad
Location
London, United Kingdom
Employment Type
Permanent
Salary
£65000/annum
independently and in a team environment. Strong attention to detail and dedication to delivering high-quality work. Experience with front-end technologies (HTML, CSS, JavaScript). Experience with version control systems (e.g., Git is preferred). Experience using AI-assisted development tools such as Claude, GitHub Copilot or similar ...

Full-Stack Engineer II, Automation and Dev

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
functional teams. We’re looking for roughly two to five years of experience. Comprehensive experience utilizing React.js with deep familiarity of core web concepts (JavaScript/HTML/CSS) Comprehensive experience writing systems/applications for automation, tools, dashboards, and alarms with the Go programming language or other object-oriented ...

Principal Engineer - Technical Lead (Gen AI and MACH Architecture)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
GitHub Actions, Azure DevOps, GitLab) Cloud and edge hosting: GCP , Vercel , AWS, Azure, Netlify and related deployment models Front‐end integration literacy: HTML, CSS, JavaScript and js + React ; mobile technologies (SwiftUI, Kotlin, Flutter or React Native) advantageous CMS, DXPs, MarTech and SaaS integration in complex enterprise landscapes; including headless ...

Senior Software Engineer / Senior AI Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
SDLC, TDD, and code review.* **Data:** Working with relational, columnar, and vector stores, grounded in sound data-modelling principles.* **Languages:** Python, Java, TypeScript/JavaScript, SQL, and relevant AI SDKs.* **Mentoring:** Developing skills in mentoring engineers through pair programming and day-to-day collaboration.* **Communication:** Clear written and verbal communication ...

Blue Prism Developer (IT) in London - LA International Computer Consultants Ltd

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Qualifications: Strong knowledge and experience with programming languages (e.g., Java, Python) Proficiency in web technologies (e.g., HTML, CSS, JavaScript) Familiarity with relevant technologies (e.g., XML, XSD) Skills: Experience in using tools such as GIT, JIRA, ServiceNow, and working in SCRUM/Agile framework Experience of working with SQL, JS, React ...

Senior PHP Developer

Hiring Organisation
Profectus Recruitment
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £80,000 per annum
ongoing modernisation initiatives across the technology estate Technical Environment: PHP (v8+) Laravel/Symfony/Yii2 Azure PaaS Azure Functions REST APIs/GraphQL JavaScript/HTML/CSS MySQL/PostgreSQL Git/CI/CD Linux (CentOS/RedHat) Azure-native tooling and integrations The Ideal Background: Strong ...

Senior Software Engineer - eDV Cleared

Hiring Organisation
NSD
Location
London, United Kingdom
Employment Type
Permanent
SENIOR SOFTWARE ENGINEER TO HAVE. Current enhanced DV clearance Experience with at least one or more of the following: Java, Python, C++, .NET, C#, JavaScript, React Experience mentoring juniors or leading a team Experience/Knowledge of automation IT WOULD BE NICE FOR THE SENIOR SOFTWARE ENGINEER TO HAVE. Cloud ...

Software Developer

Hiring Organisation
Reed
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £45,000 per annum, Inc benefits
application development. Use Node.js and related tools for effective backend development. Design and implement effective UIs with a focus on user experience, using TypeScript, JavaScript, and CSS. Integrate frontend and backend aspects of the application using RESTful APIs. Participate in continuous integration and deployment (CI/CD) pipelines. Ensure software ...

Dynamics 365 Solution Architect & Developer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Dynamics 365 Sales Dataverse Power Platform Power Apps (Model‐Driven Apps) Power Automate Customer InsightsSales Accelerator Strong hands‐on development capability including: C# .NET JavaScript Plugins Custom Workflow Activities REST APIs Experience designing enterprise integrations using: Azure Functions Logic Apps Service Bus Azure Data Factory Azure Key Vault Strong stakeholder ...

Senior Java Developer - BSS/OSS - HYBRID

Hiring Organisation
Proactive Appointments
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £80,000 per annum
with Kubernetes or OpenShift . Strong SQL skills with experience of RDBMS , SQL , and PL/SQL . Front-end development experience with Angular , JavaScript , Bootstrap , HTML5 , and CSS3 . Experience with JBoss or Oracle 10gAS application servers. Proficiency with Git , Maven , Jenkins , debugging tools, and the Software Development Lifecycle ...

Senior Tech Lead - FinTech

Hiring Organisation
Carousel Consultancy Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
developer tooling and supporting monitoring, scaling and reliability Leading technical discussions and design reviews And more! The tech environment: Backend: PHP (Laravel, Syfony), JavaScript/TypeScript (Node.js, serverless services) Frontend: React/TypeScript, React Native Infrastructure: AWS (ECS, EKS, RDS, S3, Lambda) Containers and Orchestration: Docker, Kubernetes CI/ ...