76 to 100 of 102 JavaScript Jobs in Central London

Python Full-Stack Developer

Hiring Organisation
Crisil
Location
City of London, London, United Kingdom
Python Full Stack Developer Requirements Develop highly scalable applications in Core Python. Hands-on with Python web frameworks such as Django, Flask, or FastAPI. Experience working on SQL with ability to run various data analytics ...

Remote Senior JavaScript/React Engineer – AI Training (US-based)

Hiring Organisation
Turing
Location
Central London / West End, London, United Kingdom
researchers. This includes curating code examples, providing precise solutions, and making corrections across the full stack — in Python for backend and ML workflows, and JavaScript (React, Node.js) for frontend and API layers, alongside C/C++, Java, Rust, and Go. You will evaluate and refine AI-generated code for efficiency … Typical Day Look Like? Work on AI model training initiatives by curating code examples, building solutions, and correcting code across both Python and JavaScript (React, Node.js), with additional work in C/C++, Java, Rust, and Go. Evaluate and refine AI-generated code across backend and frontend contexts to ensure ...

Remote Senior Python Engineer – LLM Evaluation (US-based)

Hiring Organisation
Turing
Location
City of London, London, United Kingdom
researchers. This includes curating code examples, providing precise solutions, and making corrections across the full stack — in Python for backend and ML workflows, and JavaScript (React, Node.js) for frontend and API layers, alongside C/C++, Java, Rust, and Go. You will evaluate and refine AI-generated code for efficiency … Typical Day Look Like? Work on AI model training initiatives by curating code examples, building solutions, and correcting code across both Python and JavaScript (React, Node.js), with additional work in C/C++, Java, Rust, and Go. Evaluate and refine AI-generated code across backend and frontend contexts to ensure ...

.NET Developer

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £90,000 per annum
.NET Developer (Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Azure DevOps, Agile, Blazor, JavaScript, React, Multithreading, RESTful, ML.NET, Azure AI, Programmer, Full Stack Engineer, Architect, .NET Developer)In just over 5 years our client has established themselves as the world's leading internet subscription service for enjoying … should have a sound understanding of object orientated (OO) development and a skill that that includes: .NET 10.0, C# 14, Azure DevOps, Agile, Blazor, JavaScript, React, Multithreading, RESTful, ML.NET, Azure AI and MongoDB. This is an excellent opportunity for a .NET Developer to working within a challenging supportive environment. ...

Junior .NET Developer

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£25,000 - £35,000 per annum
Junior .NET Developer - Online Film Rental Company - London (Tech stack: Junior .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Azure DevOps, Agile, Blazor, JavaScript, React, Multithreading, RESTful, ML.NET, Azure AI, Programmer, Full Stack Engineer, Architect, Junior .NET Developer) In just over 5 years our client has established themselves … following (full training will be provided to fill any gaps in your skill set): .NET 10.0, C# 14, Azure DevOps, Agile, Blazor, JavaScript, React, Multithreading, RESTful, ML.NET, Azure AI and MongoDB. This is an excellent opportunity for a Junior .NET Developer to working within a challenging supportive environment. Top performers ...

Senior Technical Lead

Hiring Organisation
Nextech Group Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
holds full internal ownership. Phase 2 (3-9 months): Lead technical discovery with operational stakeholders to define the automation roadmap. Build workflow automations in JavaScript and Python - ticket routing, billing triggers, licence lifecycle, CRM sequences, alert-to-action logic. Build and maintain Azure middleware (Logic Apps, API Management, Service … support or consulting * Greenfield implementation experience with at least two of: HaloPSA, HubSpot, Sage Intacct, NinjaOne RMM, 3CX, Microsoft 365/Graph API * Strong JavaScript and/or Python for integration scripting and automation * REST API design - webhooks, OAuth, JSON transformation, event-driven architecture * Cross-platform data mapping across multiple ...

Remote Senior Software Engineer – LLM Evaluation (US-based)

Hiring Organisation
Turing
Location
Central London / West End, London, United Kingdom
curating code examples, providing precise solutions, and making corrections — with a primary focus on Python across backend services, data pipelines, and ML infrastructure, alongside JavaScript (including ReactJS), C/C++, Java, Rust, and Go. You will evaluate and refine AI-generated code for efficiency, scalability, and reliability, and work with … Look Like? Work on AI model training initiatives by curating code examples, building solutions, and correcting code — primarily in Python, with additional work in JavaScript (including ReactJS), C/C++, Java, Rust, and Go. Evaluate and refine AI-generated code to ensure that it is efficient, scalable, and reliable. Collaborate ...

Senior JavaScript Engineer | DataGrid & Charting Libraries | London

Hiring Organisation
techstack Recruitment
Location
City of London, London, United Kingdom
Most engineers build applications. This team builds the components those applications rely on. I’m hiring for a developer tools company building widely adopted JavaScript components used in data-intensive applications across global enterprises, financial institutions, and technology companies. This is core engineering work, focused on performance, scalability, and building … Building features end-to-end — from design through to release Shaping the direction of widely adopted developer tooling What they’re looking for Strong JavaScript and TypeScript fundamentals (framework-agnostic mindset) Experience with a statically typed language (C++, C#, Java, Python, etc.) Deep understanding of algorithms, data structures, and software ...

Trainee Coding & Programmer Placement Programme

Hiring Organisation
Coding Jobs at ITOL Recruit
Location
Camden, Greater London, Camden Area, United Kingdom
Employment Type
Permanent
Salary
£26000 - £35000/annum
selection of more advanced courses to get you up to speed. Learn the Command Line (1.5 weeks) Learn Git & GitHub (1.5 weeks) Learn JavaScript (1.5 weeks) Learn Python 3 (1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python ...

Remote Software Engineer – AI Research & Evaluation (US-based)

Hiring Organisation
Turing
Location
Central London / West End, London, United Kingdom
researchers. This includes curating code examples, providing precise solutions, and making corrections across the full stack — in Python for backend and ML workflows, and JavaScript (React, Node.js) for frontend and API layers, alongside C/C++, Java, Rust, and Go. You will evaluate and refine AI-generated code for efficiency … Typical Day Look Like? Work on AI model training initiatives by curating code examples, building solutions, and correcting code across both Python and JavaScript (React, Node.js), with additional work in C/C++, Java, Rust, and Go. Evaluate and refine AI-generated code across backend and frontend contexts to ensure ...

Remote Senior Backend Engineer (Python/FastAPI) – AI Evaluation (US-based)

Hiring Organisation
Turing
Location
Central London / West End, London, United Kingdom
researchers. This includes curating code examples, providing precise solutions, and making corrections across the full stack — in Python for backend and ML workflows, and JavaScript (React, Node.js) for frontend and API layers, alongside C/C++, Java, Rust, and Go. You will evaluate and refine AI-generated code for efficiency … Typical Day Look Like? Work on AI model training initiatives by curating code examples, building solutions, and correcting code across both Python and JavaScript (React, Node.js), with additional work in C/C++, Java, Rust, and Go. Evaluate and refine AI-generated code across backend and frontend contexts to ensure ...

Graduate / Junior Developer, Python, JavaScript, PHP - London

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£35,000 - £50,000 per annum
Graduate/Junior Developer, Python, JavaScript, PHP - London (Tech stack: Graduate/Junior Developer, Python, JavaScript, PHP, Graduate/Junior Developer) In 2012 our client launched a social messaging platform that has been taking the US by storm. After an extremely successful period our client has decided to hop across … suitable Graduate/Junior Developer who have recently graduated from university and have a basic understanding of any of the following technologies: Python, JavaScript, PHP, React, React Native, Django, Postgres, Docker and Agile; which might have been acquired as part of your degree course or through a placement year ...

Coding Trainee Placement Programme

Hiring Organisation
Coding Jobs at ITOL Recruit
Location
City of Westminster, Greater London, United Kingdom
Employment Type
Permanent
many entry level programming roles and help you get a step ahead. Learn the Command Line (*1.5 weeks) Learn Git & GitHub (*1.5 weeks) Learn JavaScript (*1.5 weeks) Learn Python 3 (*1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet. Therefore, this is an essential addition ...

Trainee Coding & Programmer Placement Programme

Hiring Organisation
Coding Jobs at ITOL Recruit
Location
Camden, Greater London, Camden Town, United Kingdom
Employment Type
Permanent
many entry level programming roles and help you get a step ahead. Learn the Command Line (*1.5 weeks) Learn Git & GitHub (*1.5 weeks) Learn JavaScript (*1.5 weeks) Learn Python 3 (*1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet. Therefore, this is an essential addition ...

React Native Developer (Wallet team) (100% remote Worldwide)

Hiring Organisation
Tether.io
Location
Central London / West End, London, United Kingdom
React Native. Collaborate with UI/UX designers to ensure applications are visually appealing and intuitive. Integration: Work closely with backend developers and integrate Javascript SDKs, libraries, and backend services into mobile applications. Collaboration: Collaborate with product managers, designers, and other developers to deliver innovative solutions. Requirements 3+ years … experience with React , React-Native (mainly around Expo) , Redux and the core principles surrounding these. Highly proficient in JavaScript and ES6+ . Experience with CI/CD pipelines for mobile development . Familiar with modern front-end pipelines and tools . Experienced with Native modules (C++) , WebSockets, RESTful based APIs ...

Remote Software Engineer

Hiring Organisation
Turing
Location
City of London, London, United Kingdom
training, benchmarking, and advancing large language models, collaborating closely with researchers. This includes curating code examples, providing precise solutions, and making corrections in Python, JavaScript (including ReactJS), C/C++, Java, Rust, and Go; evaluating and refining AI-generated code for efficiency, scalability, and reliability; and working with cross-functional … What Does a Typical Day Look Like? Working on AI model training initiatives by curating code examples, building solutions, and correcting code in Python, JavaScript (including ReactJS), C/C++, Java, Rust, and Go. Evaluate and refine AI-generated code to ensure that it is efficient, scalable, and reliable. Collaborate ...

Remote Software Engineer – AI Research & Evaluation (US-based)

Hiring Organisation
Turing
Location
Central London / West End, London, United Kingdom
curating code examples, providing precise solutions, and making corrections — with a primary focus on Python across backend services, data pipelines, and ML infrastructure, alongside JavaScript (including ReactJS), C/C++, Java, Rust, and Go. You will evaluate and refine AI-generated code for efficiency, scalability, and reliability, and work with … Look Like? Work on AI model training initiatives by curating code examples, building solutions, and correcting code — primarily in Python, with additional work in JavaScript (including ReactJS), C/C++, Java, Rust, and Go. Evaluate and refine AI-generated code to ensure that it is efficient, scalable, and reliable. Collaborate ...

Javascript Developer

Hiring Organisation
Immersum
Location
City of London, London, United Kingdom
Senior Javascript Engineer (Node.js/AI) | Publishing 📍 London (Hybrid – min. 1 day per week) 💰 Up to £80,000 (pro rata) 📄 6-month Fixed Term Contract We’re partnering with a well-established publishing organisation undergoing a major digital and AI-led transformation . With a strong global presence, they ...

Microsoft 365 Specialist

Hiring Organisation
Ventula Consulting Limited
Location
Central London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£500 per day
Apps, Dual-write, BYOD, Lifecycle Services (LCS), and environment monitoring. The ideal candidate will possess strong technical expertise across X++, .NET/C#, SQL, JavaScript, Visual Studio, and D365 extension frameworks. Key Requirements Strong hands-on expertise in Microsoft Dynamics 365 F&O Proven implementation and AMS/support experience … X++ .NET/C# SQL & JavaScript Visual Studio D365 Extension Frameworks Power Platform Azure Services, including Logic Apps, Functions, and Service Bus Experience with DMF, Data Entities, SSRS, ER, Dual-write, BYOD, and LCS Duration: Initial 1-month contract with strong possibility of extension Day Rate: £500 per day (Outside ...

Senior User Experience Designer (SC Cleared)

Hiring Organisation
LHH
Location
City of London, London, United Kingdom
As a User Experience Designer you will: Use different techniques to identify and understand users and their needs, so that you can translate user stories and propose user-focused, evidence-based design approaches to meet ...

Software Support Engineer - UI / JavaScript

Hiring Organisation
Principle
Location
City of London, London, United Kingdom
SaaS Software Support Engineer UI/JavaScript Interested in working with a global tech company who is continually voted as the best place to work. This market leader – whose innovative SaaS product is used by Fortune 500 companies around the world and major multinational companies is strengthening their Engineering support … solid background within support – ability to troubleshoot, find workarounds and support high-end, high-value clients Good exposure to UI development with scripting skills – JavaScript Tech tools & skills such as CSS, Angular, Ajax, or React would be very useful SQL skills are also needed The Role This Support Engineering role ...

Senior Forward Deployed Engineer

Hiring Organisation
Magnitude Consulting
Location
City of London, London, United Kingdom
lifecycle • Own customer implementations — from discovery and solution design through to deployment and post-go-live optimisation • Write and debug production-level code (Python, JavaScript, SQL) for integrations and internal tooling • Identify opportunities to automate workflows and improve internal and external processes • Act as a trusted technical partner to customers … based (remote) • 5–8+ years in a technical, customer-facing role (e.g. FDE, Solutions Engineer, Implementation Engineer, or similar) • Strong coding ability in JavaScript and SQL (Python a plus) • Experience working directly with customers on complex technical implementations • Comfortable operating across engineering, product, and customer environments • Strong problem-solving skills ...

Digital Forensic Investigator

Hiring Organisation
Stats Perform
Location
Central London, London, United Kingdom
Employment Type
Permanent
Company description Stats Perform is the market leader in sports tech. We provide the most trusted sports data to some of the world's biggest organizations, across sports, media, and broadcasting. Through the latest AI ...

Technical Solutions Consultant - Japanese Speaking

Hiring Organisation
Principle
Location
City Of London, England, United Kingdom
working closely with both technical and non-technical stakeholders. Key responsibilities: Supporting partner and customer implementations Troubleshooting technical and integration issues Working with JavaScript, HTML, CSS and web technologies Investigating and resolving escalations Collaborating with product, engineering and external stakeholders Improving repeatable processes and technical solutions Providing technical guidance throughout … requirements: Professional working proficiency in Japanese and English Experience in a customer-facing technical role Hands-on troubleshooting and debugging experience Good understanding of JavaScript, HTML, CSS and browser/web technologies Experience supporting integrations, implementations or technical onboarding projects Strong stakeholder management and problem-solving skills Apply today, this ...

ERM Implementation Advisor - GRC

Hiring Organisation
Protecht
Location
City of London, Greater London, UK
About Protecht – Who we are! Protecht is redefining the way the world thinks about risk. We help our customers create exciting opportunities for growth by transforming the way they understand and manage risk. We know ...