76 to 100 of 124 Contract ECMAScript Jobs

Senior Risk Python Developer

Hiring Organisation
Hays
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£850.0 - £900.0 per day + Up to £900 Inside IR35
will need: Extensive hands-on development experience with Python within Financial Services Strong background working with Pandas & NumPy Good experience with Django and Javascript Strong experience working within a risk environment Proficiency with Python libraries such as NumPy, Pandas, Paramiko, etc. What you'll get in return Initial 6-month ...

Senior Risk Python Developer

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£850 - £900 per day
will need: Extensive hands-on development experience with Python within Financial Services Strong background working with Pandas & NumPy Good experience with Django and Javascript Strong experience working within a risk environment Proficiency with Python libraries such as NumPy, Pandas, Paramiko, etc. What you'll get in return Initial 6-month ...

Python Developer

Hiring Organisation
X4 Group Ltd
Location
London, Redcliffe, United Kingdom
Employment Type
Contract
Celery-based distributed task processing system • Reduce technical debt and simplify legacy components • Contribute to the introduction of modern browser-based experiences using JavaScript Software Developer (Python/Django) Essential Skills and Experience: • Strong commercial experience with Python and Django • Solid working knowledge of PostgreSQL • Experience with Celery or similar ...

ServiceNow Developer

Hiring Organisation
Morson Edge
Location
Nationwide, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £850/day inside IR35 & remote
SERVICENOW PROFESSIONALS - CONTRACT - REMOTE I am particularly interested in candidates with experience in the following positions: ServiceNow Developers Custom application development JavaScript, Business Rules, Script Includes, UI Policies Integrations and automation Senior ServiceNow Engineers/Technical Consultants End-to-end platform design and delivery Complex integrations and performance optimization Mentoring ...

.Net Developer

Hiring Organisation
CPS Group
Location
Newport, Gwent, Wales, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £500 per day
test code.Deploy programmes and evaluate feedbackProduce specs and determine operational feasibilityWill need to develop software verification plans and QA procedures.Key Skills areASP.Net (c#)MVCHTML5, Javascript, CSS3SQLDesirable skills areUI/UX DesignJQueryReactBy applying to this advert you are giving CPS Group (UK) Ltd authority to hold and process your data ...

Accessibility Tester

Hiring Organisation
Stackstudio Digital Ltd
Location
United Kingdom
Employment Type
Contract
Contract Rate
From £475 to £500 per day
Proficient in using accessibility testing tools (e.g., axe Devtools, CCA, Siteimprove browser extension, Accessibility Insight for Web). Strong understanding of ARIA, HTML, CSS, JavaScript, and other front-end technologies. ...

SC Cleared Military Communication Systems Integration Engineers

Hiring Organisation
Synergize Consulting Ltd
Location
Bristol, Somerset, United Kingdom
Employment Type
Contract
Contract Rate
GBP Daily
field. Excellent communication and problem-solving skills. Desirable Ex-military background or experience working in a military/secure engineering environment. Familiarity with JavaScript Object Notation, PowerShell, or Command Prompt Scripting. Experience contributing to design documentation and technical publications. Additional Information Full-time onsite role (Filton, Bristol). ...

Web-Based Graphical Interface Engineer - Contract

Hiring Organisation
Proactive Global
Location
Kraków, Lesser Poland, Poland
Employment Type
Contract
Contract Rate
£302 - £388/day
Modbus TCP/RTU, MQTT, and other building protocols. Ability to interpret BMS schematics, control logic, and device point lists. Proficiency in HTML5, CSS, JavaScript, and responsive design principles. Experience integrating real-time data with web-based visualisation tools. Strong diagnostic and problem-solving skills across data and communication workflows. ...

Digital CRO Developer

Hiring Organisation
British Heart Foundation
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£44,000 - £47,000 per annum
mission forward – supporting life-saving research and helping millions of hearts beat stronger for longer.With your strong front-end development skills (HTML, CSS, JavaScript), you’ll design and implement A/B and multivariate tests that shape how people interact with our online platforms. You’ll take visual briefs, analyse ...

Contract Senior Angular Developer - INSIDE IR35.

Hiring Organisation
C&C Consulting Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
From £450 to £520 per day INSIDE IR35
MUST HAVE experience of working on Angular 19 & 20. Experience in designing & implementing UI Applications Experience of performance tuning. Hands on experience working on JavaScript framework. INSIDE IR35 - £450-520 per day IMMEDIATE START ...

Adobe Campaign Developer - Contractor

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£300 - £350 per day
around data quality, compliance, and documentation Skills & Experience Required Proven hands-on experience as an Adobe Campaign Developer Strong knowledge of Adobe Campaign Classic (JavaScript, SQL, workflows, schemas) or Adobe Campaign Standard Solid SQL and data manipulation skills Experience working in retail or eCommerce environments (highly desirable) Understanding ...

SC Cleared Automation Engineer

Hiring Organisation
Conventus Recruitment
Location
Corsham, Wiltshire, South West, United Kingdom
Employment Type
Contract
Contract Rate
From £575 to £650 per day Inside IR35
service, it is essential that individuals have: At least 12 months demonstrable hands on experience within the last 3 years of: Creating PHP and JavaScript web services. Utilising web services provided through REST interfaces. Utilising web services provided through SOAP interfaces. Automated deployment of server, network and storage technologies across ...

Software Developer (Python & Django)

Hiring Organisation
X4 Group Ltd
Location
Greater London, Chaucer, United Kingdom
Employment Type
Contract
Contract Rate
£300 - £325/day Outside IR35
background task system Collaborating with colleagues to streamline code, reduce legacy complexity, and plan future enhancements Helping introduce a more modern browser experience using JavaScript where relevant Software Developer – What We’re Looking For Strong hands-on experience with Python and the Django framework Solid understanding of relational databases, especially ...

Software Developer Python & Django

Hiring Organisation
X4 Group
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£300 - £325 per day
background task system Collaborating with colleagues to streamline code, reduce legacy complexity, and plan future enhancements Helping introduce a more modern browser experience using JavaScript where relevant Software Developer – What We’re Looking For Strong hands-on experience with Python and the Django framework Solid understanding of relational databases, especially ...

Test Engineer

Hiring Organisation
ISR RECRUITMENT LIMITED
Location
Nationwide, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £425/day (Outside IR35)
conducting security testing using OWASP ZAP and Dependency Check. Validating RESTful APIs using Postman or Newman, along with using browser developer tools (Lighthouse, JavaScript debug console, etc.) to support functional and non-functional testing. Collaborating effectively within Agile delivery teams, contributing to continuous improvement of testing practices whilst maintaining test ...

Senior GIS Developer

Hiring Organisation
Stackstudio Digital Ltd
Location
Reading, Berkshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
From £500 to £525 per day
Application Development Design and develop GIS applications using ArcGIS Enterprise, ArcGIS Online, and ArcGIS Pro. Build custom web GIS solutions using ArcGIS API for JavaScript, Python, and modern frameworks (React/Angular). Integration Integrate GIS systems with enterprise applications (ERP, Salesforce, SAP, SCADA) using REST APIs and web services. … Esri ArcGIS platform (ArcGIS Enterprise, ArcGIS Online, ArcGIS Pro) Experience with Utility Network Model (UNM) and advanced GIS workflows Proficiency in ArcGIS API for JavaScript, Python, and web development technologies (HTML5, CSS3, JavaScript frameworks) Knowledge of geodatabase design, SQL, and spatial analysis Familiarity with cloud GIS deployments (Azure/ ...

Saviynt Developer/Architect

Hiring Organisation
Intuition IT Solutions Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
Management domain. 3 to 5 years of experience in development/Implementation of Saviynt IGA tool Should have excellent knowledge of JAVA/J2EE , JavaScript and other Scripting languages and XML Mature understanding of Saviynt functionalities, capabilities, customization, integrations & limitations. Strong Java debugging skills Excellent knowledge and understanding of LDAP ...

React Native Engineer

Hiring Organisation
Cathcart Technology
Location
Edinburgh, Cramond, City of Edinburgh, United Kingdom
Employment Type
Contract
Contract Rate
£300 - £325/day
from day one. Contribute to code reviews, testing, and continuous improvement. What we're looking for: Strong practical experience with React Native and modern JavaScript & TypeScript. Good understanding of mobile UI UX principles. Experience with REST APIs, state management, and common React Native libraries. Comfortable working remotely while joining ...

React Native Engineer

Hiring Organisation
Cathcart Technology
Location
Edinburgh, Midlothian, Scotland, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£300 - £325 per day
from day one. Contribute to code reviews, testing, and continuous improvement. What we're looking for: Strong practical experience with React Native and modern JavaScript & TypeScript. Good understanding of mobile UI UX principles. Experience with REST APIs, state management, and common React Native libraries. Comfortable working remotely while joining ...

ServiceNow HRSD Lead

Hiring Organisation
Stackstudio Digital Ltd
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
From £575 to £600 per day
automation: Implement and optimize automated workflows, flows, business rules etc. to streamline business processes. Technical skills: Able to leverage front-end technologies such as JavaScript, Jelly Script, HTML, XML, and CSS to build and enhance applications and portals. Maintenance and support: Provide ongoing support, troubleshoot issues, and perform system health ...

OIC Engineer

Hiring Organisation
Tenth Revolution Group
Location
Nationwide, United Kingdom
Employment Type
Contract
Contract Rate
£300/day
payload troubleshooting. Contribute to coding standards and best practices within the team. Essential Skills OIC VBCS platform expertise Advanced proficiency in Java and JavaScript Strong experience with EDI integrations on OIC (mandatory) Knowledge of TRADACOM, EDIFACT, X12 standards Familiarity with SFTP and AS2-based EDI To discuss this role further ...

OIC Engineer - Outside IR35 - Remote

Hiring Organisation
Tenth Revolution Group
Location
Leeds, West Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
£300 - £400/day
standards, documentation expectations, formatting guidelines, and source-control best practices. Required Skills & Experience Oracle Integration Cloud (OIC) and VBCS platform expertise. Java - Expert level. JavaScript - Expert level. EDI Standards - Expert knowledge of TRADACOM, EDIFACT, and X12. EDI Integrations in OIC - Essential, hands-on experience. Strong experience with SFTP ...

Lead Automation Engineer

Hiring Organisation
VANLOQ LIMITED
Location
Sheffield, South Yorkshire, Yorkshire, United Kingdom
Employment Type
Contract
project needs. Essential Skills & Experience Strong background in automation testing within financial services or complex enterprise environments. Proven experience developing automated test scripts with JavaScript . Hands-on experience with automation tools such as Selenium WebDriver IO (WDIO), Cucumber, Selenium UI , and RestAssured for API testing. Strong manual testing experience … cloud testing methodologies. SaaS platform testing. Process improvement leadership establishing performance testing standards and governance. Skill sets across languages such as: Java, Cypher, Python, JavaScript, PHP, .NET, Go , SQL Server, MySQL. Experience with test tools such as QMetry , TestRail , Postman , Insomnia . BDD/TDD experience. ...

Front End Developer

Hiring Organisation
FDM Group
Location
Leeds, West Yorkshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£60,000 - £70,000 per annum
will be a hybrid role based in London or Leeds. Our client is seeking an experienced Front-End Developer who is skilled in modern JavaScript frameworks. The ideal candidate will be willing to travel to the Leeds office twice a month. Responsibilities Develop accessible, responsive, as well as performant user … interfaces using NextJs and React to meet complex healthcare service needs Write clean, semantic HTML, CSS, and JavaScript code that strictly adheres to W3C standards and GDS (Government Design System) principles Collaborate closely with backend engineers to integrate frontend components with Python-based services and APIs Leverage Terraform to manage ...

Lead Automation Test Engineer CGEMJP00323449

Hiring Organisation
Experis
Location
Sheffield, South Yorkshire, United Kingdom
Employment Type
Contract
execute, maintain and improve Automated Test Frameworks and Automated Test Scripts for Web and Database applications Proven experience in writing automated test scripts using JavaScript Experience of using automation tools such as Selenium web driver IO (WDIO)/Cucumber etc, Selenium for UI testing and RestAssured for API testing Experience … Testing Process Improvement - Establish performance testing standards, best practices, and governance frameworks across the organization Skill set ideally including several of: Java, Cypher, Python, JavaScript, PHP, .NET, Go, SQL Server, MySQL API QMetry Test Rail BDD/TDD Jenkins Postman Insomnia All profiles will be reviewed against the required skills ...