Contract JavaScript Jobs in London

1 to 25 of 51 Contract JavaScript Jobs in London

Senior Software Engineer - TypeScript - Government

London, South East, England, United Kingdom
SR2
Apply security and performance best practices throughout development. Essential Skills & Experience Experience in government or GDS-aligned projects. 5+ years’ experience in large-scale software engineering. Strong in TypeScript, JavaScript, Express/Fastify, and AWS. Expertise in Terraform, IaC, and microservice architectures. Hands-on experience with CI/CD, Docker, and automated testing. Strong problem-solving and communication skills. More ❯
Employment Type: Contractor
Rate: £425 - £475 per day
Posted:

Contract Senior Software Engineer - eDV Cleared

London, South East, England, United Kingdom
Searchability NS&D
D, implementation to automation. WE NEED THE SENIOR SOFTWARE ENGINEER TO HAVE.... Current enhanced DV clearance Experience with at least one of the following: Java, Python, C++, C#, .NET, JavaScript, React Experience mentoring juniors or leading teams is nice to have but not essential Experience/Knowledge of automation IT WOULD BE NICE FOR THE SENIOR SOFTWARE ENGINEER TO HAVE.... More ❯
Employment Type: Contractor
Rate: £500 - £750 per day
Posted:

Full Stack React Developer (with Python)

London, United Kingdom
Hybrid/Remote Options
EMBS Engineering
discussions around dashboards, visualisation, and real-time feedback loops What You’ll Bring: 5+ years of hands-on experience in front-end engineering Strong expertise in React.js and modern JavaScript fundamentals Experience working with Python services or frameworks for back-end integration Solid understanding of REST APIs, microservices, and contemporary web architecture Experience in enterprise-grade or engineering tools environments More ❯
Employment Type: Contract
Rate: £500 - £520/day Inside IR35
Posted:

Contract Solution Architect - eDV Cleared

London, South East, England, United Kingdom
Searchability NS&D
in solution design, quality assurance, and delivery. Provide technical guidance and oversight across development teams. Contribute to hands-on solution definition using modern technologies such as Java, C#, or JavaScript . Operate within agile frameworks (Scrum, SAFe) to ensure iterative, value-driven delivery. Apply experience with SharePoint or Electronic Document Management Systems (EDMS) to support secure integration and delivery. Leverage More ❯
Employment Type: Contractor
Rate: £600 - £850 per day
Posted:

Microsoft Teams Developer

London, South East, England, United Kingdom
Jonothan Bosworth
examples. Working closely with internal teams to deliver a scalable, compliant, and well-documented solution. Writing clean, well-structured code using C#/.NET Core (with possible TypeScript/JavaScript extensions). What We’re Looking For: Strong background in Microsoft Azure , including API Management , Azure AD , and App Services . Experience with Microsoft Teams app development or Microsoft More ❯
Employment Type: Contractor
Rate: £200 - £500 per day
Posted:

Power Apps Developer

South East London, London, United Kingdom
Hybrid/Remote Options
VIQU IT Recruitment
Apps with a Microsoft Dataverse data store. Key skills & experience: Solid experience using .Net to develop web applications Proficiency developing both Model-Driven Apps and Canvas apps using C#, JavaScript, and Power Fx. Experience with Microsoft Dataverse Experience with Azure services such as Functions and Service Bus Familiar with solution and Web App deployments via pipelines Experience with Microsoft Dataverse More ❯
Employment Type: Contract, Work From Home
Rate: £300 - 320 per day + Inside IR35
Posted:

Power Apps Developer

London, South East, England, United Kingdom
Hybrid/Remote Options
VIQU IT Recruitment
Apps with a Microsoft Dataverse data store. Key skills & experience: Solid experience using .Net to develop web applications Proficiency developing both Model-Driven Apps and Canvas apps using C#, JavaScript, and Power Fx. Experience with Microsoft Dataverse Experience with Azure services such as Functions and Service Bus Familiar with solution and Web App deployments via pipelines Experience with Microsoft Dataverse More ❯
Employment Type: Contractor
Rate: £300 - £320 per day
Posted:

IT Tutor - Software Engineering & Development

East London, London, United Kingdom
Langton not 4 profit
equivalent qualification/knowledge gained through experience. Knowledge of Software Developing Tools and Concepts at Level 3 and 4. Knowledge and application of the programme languages C#, HTML5, CSS3, JavaScript, SQL, Python, Java, PHP, Mobile app design & Development. Creativity and flexibility to develop and enhance teaching materials in order to engage learners and respond to learner interests. This is an More ❯
Employment Type: Contract, Part Time
Posted:

Sharepoint Expert

London, United Kingdom
Brightbox GRP Ltd
administration, or consulting roles. - Strong proficiency in SharePoint Online, SharePoint 2016/2019, and Office 365. - Expertise in SharePoint Framework (SPFx), PowerShell, REST APIs, and SharePoint Designer. - Proficiency in JavaScript, C#, HTML/CSS, and SQL Server for custom development and integration. - Experience with document management best practises, including metadata tagging, version control, and retention policies. - Familiarity with AI integration More ❯
Employment Type: Contract
Rate: £400 per day
Posted:

Software Engineer

City, London, United Kingdom
Uniting People
contract role - 3 months initial We're looking for a skilled contract Software Engineer with Security Clearance working Inside Ir35. London based - 2/3 days onsite Essential Skills: Javascript React Typescript Node for application development More ❯
Employment Type: Contract
Rate: GBP Annual
Posted:

Software Engineer

EC4A, Farringdon Without, Greater London, United Kingdom
Uniting People
contract role - 3 months initial We're looking for a skilled contract Software Engineer with Security Clearance working Inside Ir35. London based - 2/3 days onsite Essential Skills: Javascript React Typescript Node for application development More ❯
Employment Type: Contract
Posted:

Contract Software Engineer

London, United Kingdom
Hybrid/Remote Options
Langham Recruitment
Ability to develop and maintain mobile apps across iOS and Android platforms. Web3 (Preferred): Familiarity with blockchain, smart contracts, and decentralised applications is a plus. Strong proficiency in modern JavaScript/TypeScript, component-based architecture, and responsive design. Experience in CI/CD pipelines, testing practices, and rapid iteration workflows. Candidate Profile: Comfortable in fast-moving, scale-up style environments. More ❯
Employment Type: Contract
Rate: £300 - £400/day Rolling 3 Month Contract | Outside IR35
Posted:

Contract Software Engineers - OO PHP / Laravel / Symfony / AWS

City of London, London, England, United Kingdom
Davies Talent Solutions
There are no dedicated testers, so attention to code quality is essential. Tech Stack OO PHP (7/8), bespoke MVC, Laravel , Symfony MySQL , Docker , AWS (EC2, RDS, Amplify) JavaScript , Bootstrap (minimal front-end work) Testing : PHPUnit, Behat, TDD practices CI/CD , GitLab, GitHub Security-first mindset (OWASP principles, secure coding) Ideal Candidate Proven experience in OO PHP development More ❯
Employment Type: Contractor
Rate: £350 - £450 per day
Posted:

SDET Software Developer in Test

London, South East, England, United Kingdom
Sanderson
contract £425 - £475 per day Outside IR35 London/Hybrid - 2x days a week in London Design and develop automated testing frameworks and strategies with Selenium and Playwright using Javascript/Typescript. Create and maintain test scripts utilising WebDriver, Selenium, Gherkin, and Cucumber Performance testing using JMeter Write clear and concise test cases and scenarios using JSON data structures to More ❯
Employment Type: Contractor
Rate: £400 - £450 per day
Posted:

Contract Palantir Foundry Engineer - DV Cleared

London, United Kingdom
Searchability
DATA ENGINEER TO HAVE Proven experience building and deploying applications using Palantir Foundry Strong software/data engineering background - Computer Science, Physics, Maths, Data Science. Proficiency in Python and JavaScript/TypeScript Experience solving technical problems involving cloud, infrastructure, data pipelines, or full-stack apps Ability to design and manage Ontologies and build applications using Foundry tools like Workshop Strong More ❯
Employment Type: Contract
Rate: GBP Daily
Posted:

Contract Palantir Foundry Engineer - DV Cleared

London, South East, England, United Kingdom
Searchability NS&D
DATA ENGINEER TO HAVE... Proven experience building and deploying applications using Palantir Foundry Strong software/data engineering background - Computer Science, Physics, Maths, Data Science. Proficiency in Python and JavaScript/TypeScript Experience solving technical problems involving cloud, infrastructure, data pipelines, or full-stack apps Ability to design and manage Ontologies and build applications using Foundry tools like Workshop Strong More ❯
Employment Type: Contractor
Rate: £500 - £650 per day
Posted:

ServiceNow Architect

London, United Kingdom
Adroit People Ltd
Skills & Qualifications: 8+ years of experience in ServiceNow platform architecture and development. Minimum 2 years of hands-on experience architecting solutions in S2P and SOM modules. Strong command of JavaScript, Flow Designer, Script Includes, Business Rules, and UI Actions. Expertise in Integration Hub, MID Servers, and external system integrations. Deep understanding of ITSM, CSM, Procurement, and Finance domain processes. Certifications More ❯
Employment Type: Contract
Rate: £450 per day
Posted:

Fiori UI5 Developer - SC Cleared

London, United Kingdom
Hybrid/Remote Options
CBSbutler Holdings Limited
IR35 + SC Cleared role Key Skills: Proven experience in SAP Fiori/UI5 development and administration. Strong hands-on experience with SAP ABAP Proficiency in web technologies: HTML, JavaScript, and CSS click apply for full job details More ❯
Employment Type: Contract
Rate: GBP 575 - 650 Daily
Posted:

Quality Assurance Engineer

London, South East, England, United Kingdom
Morgan McKinley
developers to identify and resolve potential issues early Designing detailed test plans, user scenarios and validation procedures Managing and configuring test environments and tools Executing manual and automated testing (JavaScript/TypeScript) Troubleshooting and validating new software releases, including end-user documentation Leading automation best practices and mentoring others on quality standards What You'll Bring: Experience in QA and More ❯
Employment Type: Contractor
Rate: £350 - £425 per day
Posted:

Technical Solutions Consultant

London, South East, England, United Kingdom
Hybrid/Remote Options
INTEC SELECT LIMITED
Ability to explain complex technical concepts to non-technical audiences Familiarity with advertising technologies (pixels, ad servers, auctions, delivery systems) Working knowledge of web technologies such as HTML, CSS, JavaScript, and HTTP Experience using SQL and RESTful APIs for data access or integrations Package: Day rate - £350-375pd PAYE Fully remote role 12-month contract More ❯
Employment Type: Contractor
Rate: £350 - £375 per day
Posted:

Software QA Engineer

London, United Kingdom
PCR Digital
to ensure smooth delivery. Key Skills & Experience 5+ years' experience in QA or software support. Strong knowledge of Agile methodologies and the software development lifecycle. Experience with automated testing (JavaScript/TypeScript), Playwright, and source control tools. Excellent analytical, communication, and problem-solving skills. ISTQB certification, performance testing, and client support experience are advantageous. Everybody is Welcome Diversity and Inclusion More ❯
Employment Type: Contract
Rate: GBP 437 Daily
Posted:

Software QA Engineer

South West London, London, United Kingdom
PCR Digital
to ensure smooth delivery. Key Skills & Experience 5+ years' experience in QA or software support. Strong knowledge of Agile methodologies and the software development lifecycle. Experience with automated testing (JavaScript/TypeScript), Playwright, and source control tools. Excellent analytical, communication, and problem-solving skills. ISTQB certification, performance testing, and client support experience are advantageous. Everybody is Welcome Diversity and Inclusion More ❯
Employment Type: Contract
Rate: £437/day
Posted:

Dynamics 365 & Power Platform Developer

City, London, United Kingdom
Alexander Mann Solutions - Contingency
proficiency in Power Platform: Power Apps, Power Automate. Solid understanding of Azure services and integration Experience with Development Lifecycle (DLC) processes Advanced coding skills in C#, Visual Studio, and JavaScript Proven ability to manage stakeholders and work closely with business teams Next steps This client will only accept workers operating via an Umbrella/PAYE engagement model. If you are More ❯
Employment Type: Contract
Rate: GBP Annual
Posted:

OSS/BSS Architect

London, United Kingdom
Hybrid/Remote Options
Syntax Consultancy Ltd
/mitigating architecture risks. Evaluating systems, strategies, and processes to identify potential improvements to current state architecture. Strong software development background with the ability to code, review, debug using JavaScript, Python, PHP. Familiar with AWS Cloud-based architectures, and architectural frameworks/methods (-eg- TOGAF, TM Forum, ITIL, BPMN, UML). Able to articulate complex technical solutions to non-technical More ❯
Employment Type: Contract
Rate: £400/day 400/day (Outside IR35)
Posted:

Oracle Retail Techno-Functional Consultant

London, South East, England, United Kingdom
Lorien
you successful in this role: In database query language such as: Oracle - performance, EXA, etc. In programming using: Java, Pro C and PL/SQL In scripting languages using: JavaScript and shell script Experience must include experience in agile software development Experience with industry standards for enterprise integration patterns If interested in this role, please apply NOW for immediate consideration. More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:
JavaScript
London
10th Percentile
£346
25th Percentile
£413
Median
£550
75th Percentile
£688
90th Percentile
£825