1 to 25 of 36 Contract JavaScript Jobs in London

UI Architect

Hiring Organisation
Sanderson Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £570 per day
backend and DevOps teams across the full delivery lifecycle Required Experience Strong experience in UI or Frontend Architecture within complex environments Expertise in React, JavaScript (ES6+), TypeScript, HTML5 and CSS3 Experience designing SPA or micro-frontend architectures Strong understanding of API integration (REST, API gateway patterns, BFF) Experience working ...

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 ...

Senior Full Stack Developer (React, JavaScript & C#.NET)

Hiring Organisation
Pontoon
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£650 per day
collaborative environment and are eager to make an impact, we want to hear from you! Key Experience Needed: Front-end: Strong proficiency in React.js, JavaScript/TypeScript, Redux/RTK, and modern UI patterns, develop framework is essential Back-end: Expertise in C# .NET Core, REST APIs, and microservices-based … RESTful APIs with a focus on scalability and resilience. Create UI Components: Craft responsive and modular UI components using React JS and modern JavaScript/TypeScript patterns. Collaboration: Work closely with business stakeholders and domain experts in Risk, Regulatory Reporting, and Finance. Power BI Expertise: utilise your knowledge of Power ...

Frontend Developer – React / Next.js

Hiring Organisation
Standard 8
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£300 per day
works and start contributing without needing weeks of hand-holding. What you’ll be working with The main stack is React, Next.js, TypeScript, JavaScript, HTML and CSS . You should also be comfortable working with modern styling approaches such as Tailwind CSS , consuming REST and/or GraphQL APIs ...

Senior QA engineer with C

Hiring Organisation
DCV Technologies
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£250 - £300/day
familiarity with testing RPA automated workflows (e.g., UiPath). Solid software engineering foundations with scripting or programming languages (such as Python, C#, Java, or JavaScript) to write customized automated testing modules. Must-have skill: Strong hands-on experience with C# for test automation. Deep experience working in fast-paced Agile ...

Solution Engineer – Enterprise AI (6-Month Contract)

Hiring Organisation
SJIT
Location
Lambeth, Greater London, United Kingdom
Employment Type
Contract
Contract Rate
£650 - £700/day
platform. What You Bring Hands-on Code: At least 2+ years of professional software development experience (OOP). Tech Stack: Proficiency in Python and JavaScript, alongside modern frameworks (React, Angular, Vue, etc.). Cloud & Data: Proven experience deploying to AWS, GCP, or Azure, alongside a strong understanding of SQL/ ...

Software Engineer (DV Cleared) X4

Hiring Organisation
Rubicon Consulting
Location
London, United Kingdom
Employment Type
Contract
Azure, GCP or VCF Release automation — ArgoCD, Flux Observability — Prometheus, Grafana, ELK IAM & secrets management — OAuth/OIDC, Keycloak, Vault Software development — Java, Python, JavaScript, C++ or C# Solid grounding in security principles — CIA, Least Privilege, Zero Trust Networking fundamentals — DNS, TCP/UDP, firewalls, VPNs Our Company Rubicon Consulting ...

Performance Test Engineer - SC Cleared

Hiring Organisation
Lorien
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
Azure, AWS, or GCP. Experience with monitoring and observability tools such as Grafana, Splunk, New Relic, or Dynatrace. Scripting and automation skills using Python, JavaScript, or similar technologies. Understanding of Docker, Kubernetes, and modern containerised environments. Strong communication and problem-solving abilities. Desirable Experience Kafka, IBM MQ, or similar Middleware ...

Senior Dynamics Developer

Hiring Organisation
Proactive Appointments
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £550 per day
experience developing within Microsoft Dynamics 365 CE/CRM Excellent knowledge of Dataverse and Power Platform technologies Experience developing in C#/.NET and JavaScript Strong understanding of APIs, integrations and data-driven applications Experience working with Azure integration technologies Knowledge of source control and CI/CD processes Ability ...

C# .Net Developer

Hiring Organisation
Pontoon
Location
Bromley, Kent, England, United Kingdom
Employment Type
Contractor
Contract Rate
£700 - £750 per day
APIs SOAP Services Strong understanding of API design principles and documentation standards. ASP.NET MVC 5 ASP.NET Web API 2 Front-End Development Angular (v2+) JavaScript Data & Persistence Experience with ORM frameworks such as: Entity Framework NHibernate Dapper Database development and support experience with: Microsoft SQL Server (2008+ ...

C# .NET Developer

Hiring Organisation
Pontoon
Location
Bromley, London, South Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
£650 - £750/day Inside IR35
APIs SOAP Services Strong understanding of API design principles and documentation standards. ASP.NET MVC 5 ASP.NET Web API 2 Front-End Development Angular (v2+) JavaScript Data & Persistence Experience with ORM frameworks such as: Entity Framework NHibernate Dapper Database development and support experience with: Microsoft SQL Server (2008+ ...

Ecommerce AI Engineer (Contract)

Hiring Organisation
Salt
Location
South West London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£250 - £275 per day
bring: * At least five years' experience across AI, software engineering, ecommerce, platform engineering or a closely related area * Strong development skills in Python and JavaScript or TypeScript * Experience developing and optimising WordPress websites, including custom themes, plugins and API integrations * Experience integrating booking engines, ecommerce platforms and payment systems * Practical ...

Ecommerce AI Engineer (Contract)

Hiring Organisation
Salt
Location
Westminster, London, City of Westminster, United Kingdom
Employment Type
Contract
Contract Rate
£250 - £275/day
bring: * At least five years' experience across AI, software engineering, ecommerce, platform engineering or a closely related area * Strong development skills in Python and JavaScript or TypeScript * Experience developing and optimising WordPress websites, including custom themes, plugins and API integrations * Experience integrating booking engines, ecommerce platforms and payment systems * Practical ...

Dynamics Developer

Hiring Organisation
Brio Digital
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 480 Daily
Bring Proven experience developing within Microsoft Dynamics 365 (CE/CRM). Strong skills in Power Apps, Power Automate, and Dataverse. Proficiency in C#, JavaScript, and Dynamics SDK/custom connectors. Understanding of Azure functions, APIs, and integration patterns. Experience working in agile, multidisciplinary environments. Awareness of government data ...

Dynamics Developer

Hiring Organisation
Brio Digital
Location
London, Baker Street, United Kingdom
Employment Type
Contract
Contract Rate
£480/day
Bring Proven experience developing within Microsoft Dynamics 365 (CE/CRM). Strong skills in Power Apps, Power Automate, and Dataverse. Proficiency in C#, JavaScript, and Dynamics SDK/custom connectors. Understanding of Azure functions, APIs, and integration patterns. Experience working in agile, multidisciplinary environments. Awareness of government data ...

Sitecore Developer - Outside IR35

Hiring Organisation
SRG
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£0 per day
independently in a remote environment. Desirable Sitecore certification and/or Sitecore MVP experience. Experience with Sitecore upgrades and platform migrations. Exposure to React, JavaScript frameworks and headless CMS implementations. Experience integrating CRM, marketing or eCommerce platforms. Knowledge of ElasticSearch, Azure DevOps, TeamCity or Octopus Deploy. What's on Offer ...

C# .Net Developer

Hiring Organisation
Pontoon
Location
Bromley, London, United Kingdom
Employment Type
Contract
design principles and documentation standards. ASP.NET MVC 5 ASP.NET Web API 2 Front-End Development Angular (v2+) IBM MQ/MQ messaging JavaScript Why Join Us? Work on projects that make a difference in the financial sector. Collaborate with a talented team in a vibrant environment. Enjoy a competitive daily ...

ServiceNow Developer (HRSD)

Hiring Organisation
Infoplus Technologies UK Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
Flow Designer & Legacy workflows, ACLs, notifications, reports and dashboards. Test automation experience with ServiceNow ATF, including designing, maintaining, and executing automated tests. Proficiency in JavaScript; HTML/CSS knowledge is a plus. Experience working in agile delivery teams. Nice to have ServiceNow certifications, such as CSA, CAD, or CIS-HRSD. ...

ServiceNow Architect - Telecoms Domain

Hiring Organisation
DCV Technologies
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500/day - Outside IR35
TSOM, ITOM, ITAM, HRSD, CSM, GRC, SecOps). Proven expertise in ServiceNow integrations (REST, SOAP, APIs, MID Servers, etc.). Experience with ServiceNow scripting (JavaScript, Glide, Flow Designer) and ServiceNow data model. Knowledge of ITIL/ITSM processes and best practices. Experience designing and implementing CMDB and Discovery. Excellent problem ...

ServiceNow Developer (HRSD)

Hiring Organisation
Smartedge Solutions Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
Flow Designer & Legacy workflows, ACLs, notifications, reports and dashboards. Test automation experience with ServiceNow ATF, including designing, maintaining, and executing automated tests. Proficiency in JavaScript; HTML/CSS knowledge is a plus. Experience working in agile delivery teams. ...

ServiceNow Architect

Hiring Organisation
TechNest Talent
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£90,000
technical teams. Essential Skills: Extensive ServiceNow architecture experience. Strong ITSM knowledge plus at least two additional ServiceNow modules. CMDB and Discovery implementation experience. Strong JavaScript, Glide and Flow Designer knowledge. Excellent stakeholder management and communication skills. Desirable Skills: ServiceNow CSA, CIS, CAD or CTA certifications. Agile/Scrum experience. ...

ServiceNow Architect

Hiring Organisation
TECHNEST TALENT LTD
Location
Tower Hamlets, Greater London, Portsoken, United Kingdom
Employment Type
Permanent, Contract
Salary
£80000 - £90000/annum contract rates available also
technical teams. Essential Skills: Extensive ServiceNow architecture experience. Strong ITSM knowledge plus at least two additional ServiceNow modules. CMDB and Discovery implementation experience. Strong JavaScript, Glide and Flow Designer knowledge. Excellent stakeholder management and communication skills. Desirable Skills: ServiceNow CSA, CIS, CAD or CTA certifications. Agile/Scrum experience. ...

Tech Lead - Power Platform

Hiring Organisation
rated traders ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£217 - £230 per day
various stakeholders across the council. Experience in Dynamics 365/Azure is desirable. Understanding of OAuth Experience of SQL Experience of Formulas, C# or Javascript Power Platform Functional Consultant PL-200 (desirable but Power Platform experience and passion are more important). ...

ServiceNow Developer Contract - 6 months

Hiring Organisation
CBSbutler Holdings Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500 per day + InsideIR35
best practices. * Work closely with cross-functional teams to deliver high-quality software. Skills & Experience: * 3-7+ years commercial ServiceNow development experience. * Strong JavaScript development skills. * Experience with Service Portal or Employee Centre development. * Solid knowledge of Business Rules, Flow Designer, Client Scripts, UI Policies and Script Includes. * Experience ...

C# Developer

Hiring Organisation
GCS
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £416/day inside IR35
Applications Duration - 6 months with likely extension Rate - £416 p/d (inside IR35) Location - Hybrid/Canary Wharf Tech Stack C# WPF Winforms Javascript SQL Oracle Tasks Tasks range from understanding business requirements, designing application structures, business data analysis, programming WPF (Windows Presentation Foundation) applications in Visual C#.NET ...