Contract ECMAScript Job Vacancies

151 to 175 of 178 Contract ECMAScript Jobs

UI Engineer / Front End Developer / Engineer – Angular Developer – Remote

Warwickshire, England, United Kingdom
Hybrid / WFH Options
MYO Talent
UI Engineer/Angular Developer/Angular/Software Engineer/HTML/CSS/JavaScript (ES6+)/Agile/UI/User Interfaces/Wireframes/Front End/Restful API/6-month contract/Remote/£450 – 550 per day Inside IR35. One of our leading clients is looking to recruit a UI Engineer/Developer/… and maintenance of a shared design system. Understanding of REST APIs and integration with back-end services. Awareness of secure coding practices and data privacy considerations in UI development JavaScript, HTML, CSS Agile Cloud or hybrid environment More ❯
Employment Type: Contractor
Rate: £450 - £550 per day
Posted:

SuiteCRM Developer

Coventry, Warwickshire, United Kingdom
CBSbutler Holdings Limited trading as CBSbutler
a skilled and proactive SuiteCRM Developer, to design, develop, customize, and maintain a CRM solutions built on the SuiteCRM platform. This role requires hands-on experience with PHP, MySQL, JavaScript, and SuiteCRM architecture, with a deep understanding of CRM workflows and integrations. The role: Develop and customize modules, workflows, and plug-ins in SuiteCRM to meet business requirements. Implement new … meets best practices in coding standards, security, and data integrity. Your skills and experience Proven experience (8+ years) working with SuiteCRM or SugarCRM development. Strong proficiency in PHP, MySQL, JavaScript, HTML/CSS, and MVC frameworks. Familiarity with CRM database schema and customization best practices. Experience with version control systems (e.g., Git). Ability to work independently and manage priorities More ❯
Employment Type: Contract
Rate: GBP 400 - 425 Daily
Posted:

SuiteCRM Developer

West Midlands, United Kingdom
CBS Butler
a skilled and proactive SuiteCRM Developer, to design, develop, customize, and maintain a CRM solutions built on the SuiteCRM platform. This role requires hands-on experience with PHP, MySQL, JavaScript, and SuiteCRM architecture, with a deep understanding of CRM workflows and integrations. The role: Develop and customize modules, workflows, and plug-ins in SuiteCRM to meet business requirements. Implement new … meets best practices in coding standards, security, and data integrity. Your skills and experience Proven experience (8+ years) working with SuiteCRM or SugarCRM development. Strong proficiency in PHP, MySQL, JavaScript, HTML/CSS, and MVC frameworks. Familiarity with CRM database schema and customization best practices. Experience with version control systems (eg, Git). Ability to work independently and manage priorities More ❯
Employment Type: Contract
Rate: GBP 475 - 500 Daily
Posted:

SuiteCRM Developer

Coventry, West Midlands, West Midlands (County), United Kingdom
CBSbutler Holdings Limited trading as CBSbutler
a skilled and proactive SuiteCRM Developer, to design, develop, customize, and maintain a CRM solutions built on the SuiteCRM platform. This role requires hands-on experience with PHP, MySQL, JavaScript, and SuiteCRM architecture, with a deep understanding of CRM workflows and integrations. The role: Develop and customize modules, workflows, and plug-ins in SuiteCRM to meet business requirements. Implement new … meets best practices in coding standards, security, and data integrity. Your skills and experience Proven experience (8+ years) working with SuiteCRM or SugarCRM development. Strong proficiency in PHP, MySQL, JavaScript, HTML/CSS, and MVC frameworks. Familiarity with CRM database schema and customization best practices. Experience with version control systems (e.g., Git). Ability to work independently and manage priorities More ❯
Employment Type: Contract
Rate: £425 - £500/day
Posted:

Full Stack Engineer Gen AI Focus

London, South East, England, United Kingdom
Hybrid / WFH Options
Morgan McKinley
initiatives across multiple projects. Key Responsibilities: Design, develop and maintain server-side logic using Python and manage APIs for integration with third-party services. Develop front-end interfaces using JavaScript and frameworks such as React. Build and deploy Agentic systems and Retrieval-Augmented Generation (RAG) systems with Large Language Models (LLMs). Participate in privacy automation programs, including workflows for … reviews and ensuring quality in team deliverables. Strong back-end development experience, with a focus on AML, data integrity and scalable solutions. Experience with front-end development (React/JavaScript) and DevOps/maintenance tasks. Proficiency in building Agentic systems and multi-agent architectures. ETL and data management experience (Postgres, BigQuery, Azure, Snowflake). Ability to design solutions, validate requirements More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

Application Developer

London, United Kingdom
Experis
only Core Technical Skills: React Native & Expo: Proficient with React Native and Expo open source modules (bare workflow) Strong React fundamentals: hooks, context, state management React Navigation, app routing JavaScript & TypeScript Advanced JavaScript (ES6+) and TypeScript Type safety and maintainability for large-scale projects Native Platform Integration Swift (iOS) and Kotlin (Android) for custom native modules Native module integration in More ❯
Employment Type: Contract
Rate: £550.00 - £800.00 per day + Market Rate
Posted:

Lead Software Developer - SC Cleared - Django

London, South East, England, United Kingdom
SR2
application. Contribute to architectural decisions to reduce complexity. Work with PostgreSQL databases and support data optimisation. Support asynchronous processing with Celery. Drive the transition toward modern web technologies, including JavaScript-based components and optimised SQL. Tech Stack Backend: Python, Django Database: PostgreSQL Task Queue: Celery Frontend: HTML/CSS/JavaScript (future focus on modernisation) Experience Required Proficiency in Python More ❯
Employment Type: Contractor
Rate: £475 - £525 per day
Posted:

Fullstack Developer with Golang and Typescript

City, London, United Kingdom
Harvey Nash
complex projects with minimal assistance. You architect high quality web applications, and design key tools and systems that support said web applications. Top Responsibilities: Write and review code in JavaScript or TypeScript,Golang,SQL Test, debug, maintain and/or update full-stack web applications. Write and review technical documents, including design, development, and revision documents. Collaborate with Product, UX … QA, and engineering teams, to deliver new features Mandatory Skills/Qualifications: 3+ years experience writing JavaScript or TypeScript, Golang,SQL 3+ years experience developing resource oriented APIs 3+ years experience designing and debugging databases Experience in multiple general purpose programming languages and building large, scaled full stack web solutions. Microservice design and implementation More ❯
Employment Type: Contract
Rate: GBP Annual
Posted:

Fullstack Developer with Golang and Typescript

West End, London, United Kingdom
Harvey Nash
complex projects with minimal assistance. You architect high quality web applications, and design key tools and systems that support said web applications. Top Responsibilities: Write and review code in JavaScript or TypeScript,Golang,SQL Test, debug, maintain and/or update full-stack web applications. Write and review technical documents, including design, development, and revision documents. Collaborate with Product, UX … QA, and engineering teams, to deliver new features Mandatory Skills/Qualifications: 3+ years experience writing JavaScript or TypeScript, Golang,SQL 3+ years experience developing resource oriented APIs 3+ years experience designing and debugging databases Experience in multiple general purpose programming languages and building large, scaled full stack web solutions. Microservice design and implementation More ❯
Employment Type: Contract
Posted:

Fullstack Developer with Golang and Typescript

South West London, London, England, United Kingdom
Harvey Nash
complex projects with minimal assistance. You architect high quality web applications, and design key tools and systems that support said web applications. Top Responsibilities: Write and review code in JavaScript or TypeScript,Golang,SQL Test, debug, maintain and/or update full-stack web applications. Write and review technical documents, including design, development, and revision documents. Collaborate with Product, UX … QA, and engineering teams, to deliver new features Mandatory Skills/Qualifications: 3+ years experience writing JavaScript or TypeScript, Golang,SQL 3+ years experience developing resource oriented APIs 3+ years experience designing and debugging databases Experience in multiple general purpose programming languages and building large, scaled full stack web solutions. Microservice design and implementation More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

Web Solutions Engineer with Java & Kotlin

City, London, United Kingdom
Harvey Nash
complex projects with minimal assistance. You architect high quality web applications, and design key tools and systems that support said web applications. Top Responsibilities: Write and review code in JavaScript or TypeScript, Java, Kotlin, Golang, and/or SQL Test, debug, maintain and/or update full-stack web applications. Write and review technical documents, including design, development, and revision … documents. Collaborate with Product, UX, QA, and engineering teams, to deliver new features Mandatory Skills/Qualifications: 3+ years experience writing JavaScript or TypeScript, Java, Kotlin, Golang, and/or SQL 3+ years experience developing resource oriented APIs 3+ years experience designing and debugging databases Experience in multiple general purpose programming languages and building large, scaled full stack web solutions. More ❯
Employment Type: Contract
Rate: GBP Annual
Posted:

Web Solutions Engineer with Java & Kotlin

West End, London, United Kingdom
Harvey Nash
complex projects with minimal assistance. You architect high quality web applications, and design key tools and systems that support said web applications. Top Responsibilities: Write and review code in JavaScript or TypeScript, Java, Kotlin, Golang, and/or SQL Test, debug, maintain and/or update full-stack web applications. Write and review technical documents, including design, development, and revision … documents. Collaborate with Product, UX, QA, and engineering teams, to deliver new features Mandatory Skills/Qualifications: 3+ years experience writing JavaScript or TypeScript, Java, Kotlin, Golang, and/or SQL 3+ years experience developing resource oriented APIs 3+ years experience designing and debugging databases Experience in multiple general purpose programming languages and building large, scaled full stack web solutions. More ❯
Employment Type: Contract
Posted:

Web Solutions Engineer with Java & Kotlin

South West London, London, England, United Kingdom
Harvey Nash
complex projects with minimal assistance. You architect high quality web applications, and design key tools and systems that support said web applications. Top Responsibilities: Write and review code in JavaScript or TypeScript, Java, Kotlin, Golang, and/or SQL Test, debug, maintain and/or update full-stack web applications. Write and review technical documents, including design, development, and revision … documents. Collaborate with Product, UX, QA, and engineering teams, to deliver new features Mandatory Skills/Qualifications: 3+ years experience writing JavaScript or TypeScript, Java, Kotlin, Golang, and/or SQL 3+ years experience developing resource oriented APIs 3+ years experience designing and debugging databases Experience in multiple general purpose programming languages and building large, scaled full stack web solutions. More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

Ui Developer (Gaming)

Twycross, Leicestershire, United Kingdom
Hybrid / WFH Options
Apex Systems US
be even better, think like you own the place. Liaise with other teams, help identify technical challenges and identify core player value. Required Skills and Experience Experience in modern JavaScript web development. Solid understanding of design patterns and object-oriented design. Knowledge of CSS and preprocessors such as PostCSS. Understanding of the complexities of working on multilingual products. A keen … Experience in writing unit tests in Jasmine or similar. Experience in MVC and/or MVVM design patterns. Experience and awareness of accessibility requirements. Experience in working with a JavaScript framework such as React, Angular, Vue, SolidJS. More ❯
Employment Type: Contract
Posted:

Ruby Developer

United Kingdom
Hybrid / WFH Options
Brightbox GRP Ltd
Ruby Developer Inside IR35 Location: Hybrid 2-3 days onsite North East UK. Clearance: SC Clearance or SC Eligible We are seeking a skilled Ruby Developer to join our dynamic team. The ideal candidate will be responsible for developing and More ❯
Employment Type: Contract
Rate: £400 - £500 per day
Posted:

Fullstack .Net Developer

London, South East, England, United Kingdom
Hybrid / WFH Options
Hays Specialist Recruitment Limited
I am currently working with a global engineering client who are actively seeking a Fullstack .Net Developer on a long-term contract basis. What you'll need to succeed 10+ years' .Net Development experience, ideally in a large-scale organisation. More ❯
Employment Type: Contractor
Rate: £500 - £545 per day
Posted:

Fullstack .Net Developer

London, United Kingdom
Hybrid / WFH Options
Hays Technology
I am currently working with a global engineering client who are actively seeking a Fullstack .Net Developer on a long-term contract basis. What you'll need to succeed 10+ years' .Net Development experience, ideally in a large-scale organisation. More ❯
Employment Type: Contract
Rate: £500 - £545/day Up to £545pd Umbrella
Posted:

Software Technical Lead (SC Clearance) - inside IR35 - £525 - Bristol

Bristol, United Kingdom
Exalto Consulting
Software Technical Lead (Basic SC Clearance) - Inside IR35 - £525 per day - Bristol every other week - JavaScript, typescript, react, node, AWS, Terraform Exalto consulting are currently recruiting for a contract software technical lead, you would need to go to Bristol every other week for stakeholder meetings, this is inside IR35 paying £525 per day and need to have Basic SC Clearance … Key Skills and ‘must have’ experience: Node.js, ReactJS, JavaScript, TypeScript, npm, AWS, Jenkins, Terraform, and PostgreSQL would be ideal The technical stack is flexible for the right person. Providing clear technical direction and mentorship to the team. Applying sound judgment to make technical decisions. If you have the above experience and are looking for a new contract role to start … please send your CV for immediate consideration as our client are looking to hire Software Technical Lead (Basic SC Clearance) - Inside IR35 - £525 per day - Bristol every other week - JavaScript, typescript, react, node, AWS, Terraform More ❯
Employment Type: Contract
Rate: £500 - £525/day £525 per day inside IR35
Posted:

Software Technical Lead (SC Clearance) - inside IR35 - £525 - Bristol

Bristol, Gloucestershire, United Kingdom
Exalto Consulting
Software Technical Lead (Basic SC Clearance) - Inside IR35 - £525 per day - Bristol every other week - JavaScript, typescript, react, node, AWS, Terraform Exalto consulting are currently recruiting for a contract software technical lead, you would need to go to Bristol every other week for stakeholder meetings, this is inside IR35 paying £525 per day and need to have Basic SC Clearance … Key Skills and must have experience: Node.js, ReactJS, JavaScript, TypeScript, npm, AWS, Jenkins, Terraform, and PostgreSQL would be ideal The technical stack is flexible for the right person. Providing clear technical direction and mentorship to the team. Applying sound judgment to make technical decisions. If you have the above experience and are looking for a new contract role to start … please send your CV for immediate consideration as our client are looking to hire Software Technical Lead (Basic SC Clearance) - Inside IR35 - £525 per day - Bristol every other week - JavaScript, typescript, react, node, AWS, Terraform More ❯
Employment Type: Contract
Rate: GBP 500,000 - 525,525 Daily
Posted:

Integration Engineer

Nationwide, United Kingdom
Hybrid / WFH Options
Charles Simon Associates Ltd
Integration Engineer – (Healthcare, HL7, FHIR, Cloverleaf, APIs, Java, Python, JavaScript) – Contract – Remote Charles Simon Associates are exclusively recruiting for an Integration Engineer on an initial 3-month contract with the potential to extend. Location: Remote Day Rate: £450–£550 per day Inside IR35 Start Date: Ideally W/C 29th September Role Overview: We are looking for a skilled Integration … Strong knowledge of HL7 v2.x, HL7 v3, and FHIR interoperability standards. Hands-on experience with integration engines such as Mirth Connect, Rhapsody, Cloverleaf, or InterSystems Ensemble. Proficiency in Java, JavaScript, Python, or C#/.NET for scripting and interface development. Experience designing and consuming REST/SOAP APIs (JSON, XML). Solid understanding of healthcare workflows and clinical systems (Epic … . Strong SQL/database skills for data transformation and troubleshooting. Familiarity with healthcare data security protocols and compliance frameworks. Integration Engineer – (Healthcare, HL7, FHIR, Cloverleaf, APIs, Java, Python, JavaScript) – Contract – Remote More ❯
Employment Type: Contract
Rate: £450 - £550/day
Posted:

Integration Engineer

M2, Manchester, United Kingdom
Hybrid / WFH Options
Charles Simon Associates Ltd
Integration Engineer – (Healthcare, HL7, FHIR, Cloverleaf, APIs, Java, Python, JavaScript) – Contract – Remote Charles Simon Associates are exclusively recruiting for an Integration Engineer on an initial 3-month contract with the potential to extend. Location: Remote Day Rate: £450–£550 per day Inside IR35 Start Date: Ideally W/C 29th September Role Overview: We are looking for a skilled Integration … Strong knowledge of HL7 v2.x, HL7 v3, and FHIR interoperability standards. Hands-on experience with integration engines such as Mirth Connect, Rhapsody, Cloverleaf, or InterSystems Ensemble. Proficiency in Java, JavaScript, Python, or C#/.NET for scripting and interface development. Experience designing and consuming REST/SOAP APIs (JSON, XML). Solid understanding of healthcare workflows and clinical systems (Epic … . Strong SQL/database skills for data transformation and troubleshooting. Familiarity with healthcare data security protocols and compliance frameworks. Integration Engineer – (Healthcare, HL7, FHIR, Cloverleaf, APIs, Java, Python, JavaScript) – Contract – Remote More ❯
Employment Type: Contract
Rate: £450 - £550/day
Posted:

Integration Engineer

London, South East, England, United Kingdom
Hybrid / WFH Options
Charles Simon Associates Ltd
Integration Engineer – (Healthcare, HL7, FHIR, Cloverleaf, APIs, Java, Python, JavaScript) – Contract – Remote Charles Simon Associates are exclusively recruiting for an Integration Engineer on an initial 3-month contract with the potential to extend. Location: Remote Day Rate: £450–£550 per day Inside IR35 Start Date: Ideally W/C 29th September Role Overview: We are looking for a skilled Integration … Strong knowledge of HL7 v2.x, HL7 v3, and FHIR interoperability standards. Hands-on experience with integration engines such as Mirth Connect, Rhapsody, Cloverleaf, or InterSystems Ensemble. Proficiency in Java, JavaScript, Python, or C#/.NET for scripting and interface development. Experience designing and consuming REST/SOAP APIs (JSON, XML). Solid understanding of healthcare workflows and clinical systems (Epic … . Strong SQL/database skills for data transformation and troubleshooting. Familiarity with healthcare data security protocols and compliance frameworks. Integration Engineer – (Healthcare, HL7, FHIR, Cloverleaf, APIs, Java, Python, JavaScript) – Contract – Remote More ❯
Employment Type: Contractor
Rate: £450 - £550 per day
Posted:

Integration Engineer

EC1A, Farringdon, Greater London, United Kingdom
Hybrid / WFH Options
Charles Simon Associates Ltd
Integration Engineer – (Healthcare, HL7, FHIR, Cloverleaf, APIs, Java, Python, JavaScript) – Contract – Remote Charles Simon Associates are exclusively recruiting for an Integration Engineer on an initial 3-month contract with the potential to extend. Location: Remote Day Rate: £450–£550 per day Inside IR35 Start Date: Ideally W/C 29th September Role Overview: We are looking for a skilled Integration … Strong knowledge of HL7 v2.x, HL7 v3, and FHIR interoperability standards. Hands-on experience with integration engines such as Mirth Connect, Rhapsody, Cloverleaf, or InterSystems Ensemble. Proficiency in Java, JavaScript, Python, or C#/.NET for scripting and interface development. Experience designing and consuming REST/SOAP APIs (JSON, XML). Solid understanding of healthcare workflows and clinical systems (Epic … . Strong SQL/database skills for data transformation and troubleshooting. Familiarity with healthcare data security protocols and compliance frameworks. Integration Engineer – (Healthcare, HL7, FHIR, Cloverleaf, APIs, Java, Python, JavaScript) – Contract – Remote More ❯
Employment Type: Contract
Rate: £450 - £550/day
Posted:

Integration Engineer

B1, Birmingham, West Midlands (County), United Kingdom
Hybrid / WFH Options
Charles Simon Associates Ltd
Integration Engineer – (Healthcare, HL7, FHIR, Cloverleaf, APIs, Java, Python, JavaScript) – Contract – Remote Charles Simon Associates are exclusively recruiting for an Integration Engineer on an initial 3-month contract with the potential to extend. Location: Remote Day Rate: £450–£550 per day Inside IR35 Start Date: Ideally W/C 29th September Role Overview: We are looking for a skilled Integration … Strong knowledge of HL7 v2.x, HL7 v3, and FHIR interoperability standards. Hands-on experience with integration engines such as Mirth Connect, Rhapsody, Cloverleaf, or InterSystems Ensemble. Proficiency in Java, JavaScript, Python, or C#/.NET for scripting and interface development. Experience designing and consuming REST/SOAP APIs (JSON, XML). Solid understanding of healthcare workflows and clinical systems (Epic … . Strong SQL/database skills for data transformation and troubleshooting. Familiarity with healthcare data security protocols and compliance frameworks. Integration Engineer – (Healthcare, HL7, FHIR, Cloverleaf, APIs, Java, Python, JavaScript) – Contract – Remote More ❯
Employment Type: Contract
Rate: £450 - £550/day
Posted:

Front End Wordpress Developer

Prestwich, Manchester, Lancashire, England, United Kingdom
Square Peg Associates Ltd
Job Title: Mid Front-End WordPress Developer (Initial 3-Month Contract – Potential to Go Permanent) Location: Manchester/Whitefield/Prestwich Contract: 3 months initially, with strong potential to become permanent Start Date: ASAP About the Role: We’re looking More ❯
Employment Type: Contractor
Rate: £35,000 - £40,000 per annum
Posted: