Jest Contract Jobs
This Week
Front End Developer
Front End Developer
The successful candidate will be in charge of developing and maintaining online flagship stores in a cross- functional team composed mainly by front-end developers, paying attention to user experience, performance optimisation, pixel-perfection, accessibility.
In particular, she/he will deal with:
e Development of new online stores; e Development of new releases of existing online stores; e Development of new features in existing or new online stores
Technologies we use in our front-end are:
HTML 5, CSS 3, Javascript / ES Next;
.NET Framework, C#, Razor, Javascript micro components; Interface with back-end using Rest API;
Tools: SASS, Gulp, Rollup, Webpack, Jenkins, Nightwatch JS, Jest
At our core:
We write readable, maintainable, optimized, testable and scalable code
Agile methodologies (Scrum)
Extreme programming (pair programming, test driven development, code refactoring) Git-based, pull requests, code reviews
Performance analysis and optimization
Skills and Experience:
At least 3-4 years' experience in the same role at a web agency or e-commerce company; Excellent knowledge of the latest versions of all front-end development languages: HTML, CSS, Javascript; e Excellentknowledge of at least one of the most common JavaScript libraries and frameworks (React, Vue, Angular, jQuery); Excellent knowledge of the main browsers and ability to find cross-browser solutions; Close attention to details; Good team working skills; Flexibility in learing new technologies and languages independently; Good knowledge of both English and Italian language
Software Developer in Test
The focus of their automation is now moving towards CI so naturally you will need a firm grasp of this. This will be a technical and highly automation focused role with a need for very strong automation skills with JS and up to date knowledge of JS tooling and farmeworks: most crucially, Cypress and Jest along with backstop. You will also have experience and understanding of performance testing having worked with tools such as Blazemeter, Gatling or Jmeter.
You will be tasked with building frameworks from scratch, driving acceptance criteria and developing key relationships throughout the engineering team to champion quality and increase efficiency.
Required skills:
- Javascript automation
- Cypress (must have)
- Jest
- Backstop
- Webdriver.io
- New relic
- Performance testing - Blazemeter/Jmeter/Gatling
- CICD tooling and experience: Jenkins and Teamcity
If your experience matches the above skillset, please do forward your CV.
Ruby on Rails Developer (Contract)
Role: Ruby on Rails Developer
Duration: 6 months
Required skills & experience:
- Ruby on Rails, and relational databases
- TDD
- Strong ability with OOP Javascript
- Able to build scalable software
- Agile
Bonus skills & experience:
- Experience with other high-level languages
- Experience with ES6, React, React native
- Experience working on mobile apps
- Experience with Jest/Mocha/Jasmine
Full Stack Developer
Leading Design and Digital Agency are looking for a Full Stack Developer to join their team to lead initiatives on some of their largest client engagements.
Full Stack Developer – React and Node
Leading Design Agency based in London, is looking for a Full Stack Developer to join their team to lead initiatives on some of their largest client engagements. Full Stack Developers liaise between cross-functional teams to understand core presentation layer requirements and also recommend and implement solutions that follow-up best practices and standards.
Full Stack Developers are often the main communication hub with the wider technology team and are responsible for collaborating with them to identify integration points and dependencies. The ideal candidate will have a strong appreciation for design and interaction, as well as an intimate understanding and appreciation for presentation layer code, and thrives on collaboration with technologists, designers, user interaction designers and strategists to get the best solutions for our products.
Key Technical Skills & Responsibilities
- Proven experience delivering dynamic, responsive, maintainable, and performant web applications/experiences using a modern Javascript stack (React, Redux, Webpack, Node, CSS3, HTML5).
- Strong and up-to-date knowledge of modern Javascript tooling, design patterns and applied use of the latest ECMAScript syntax and featuresets.
- Experience with Progressive Web Apps, JAMstack, and static site generators (e.g Gatsby JS).
- Experience of working with headless content management systems (e.g. Contentful)
- Deep knowledge of source control (GIT, Gitflow, Pull requests, Code reviews) and bug tracking systems (JIRA).
- Experience using component environments and atomic style guides (e.g Storybook)
- Experience building and running Continuous Integration (CI) pipelines and automated test suites.
- Test Driven Development (TDD) and Behavioural Driven Development. (BDD); Ability to write unit, component, and integration tests with established testing suites (Jest, Enzyme, Chai, Sinon, Istanbul etc).
- Advanced understanding of web standards and best practices including SEO, accessibility and usability.
- Excellent working knowledge developing cross platform/browser compatibility (IE, Firefox, Safari, Opera, etc.)
- Experience of writing server side microservices or Lambda style functions with Node.js to support front-end features.
- In depth understanding of cross-browser, front-end development issues with excellent debugging and troubleshooting skills.
General Skills & Experience
- Solid understanding of Computer Science fundamentals including object oriented. design, data structures, algorithm design, problem solving and complexity analysis.
- Strong understanding of infrastructure and scalability.
- Must be able to approach unique technical challenges with an analytical and solutions focused mindset.
- A keen eye for detail and the ability to craft beautiful web experiences sympathetic to the creative vision; liaising with the design/creative teams.
- Ability to work effectively and collaboratively as part of a cross-functional agile team.
- Excellent verbal/written communication skills with strong time management and problem solving capabilities.
- Ability to follow technical specifications and production processes.
- Experience with a server side additional language such as Go, Python or Java.
- Passionate about emerging technologies and how they might be used in practice.
- Experience of cross platform mobile application development using React Native or similar a plus.
- Loves logic and problem solving!
React Native Developer
A React Native Developer is required for a new project within a Fintech start up that is disrupting the market and making big moves within the industry, The React Native Developer will use a technology stack around React Native that they, alongside the development team management and architect decide is best suited for the project.
This is a great opportunity for someone to be the expert with React Native within a highly technical team of Software Engineers who mostly work with Java and JavaScript. The React Developer will be involved with the design and development of what is quite a greenfield project and be able to do some architecture and technology selection.
The software project is thought to go on for about 3-6 months, but it could be that they extend this far beyond the original dates with the company growing so fast, getting additional funding as well as new customers. The project will be scalable and will be using all the latest technologies available as well as methods of development. Think Agile, Java 11, JavaScript, AWS, Jest, TypeScript, Swift, Redux, TDD, BDD, UX Design, Atom, Nuclide, Visual Studio Code, Ignite, Vue.JS, React.JS, Expo, Flow, ESLint, Node.JS, Reactotron, Reduxsauce, InVision, Adobe XD – maybe even a little Swift or C++ etc.
So, if you are a React Native Developer and keen to really enhance your skillset and experience around this whilst working at an exciting FinTech Startup – please apply now for consideration.
- Oxford based
- £450-650 Depending on Experience and Skillset
- React Native Developer – Full lifecycle
- Fintech Start Up
Please apply now for immediate consideration!
React Native Developer, Software Engineer, Fintech Start-up
Referral Scheme: If this role isn’t for you then perhaps you could recommend a friend or colleague to Haybrook IT. If we go on to place that person in a permanent or temporary capacity then you could be rewarded with £500!! Please see our website for terms and conditions.
Haybrook IT Resourcing is Oxford’s leading IT recruitment agency. With exclusive access to some of the region’s most successful companies, send in your CV today to secure your next IT position.
Haybrook IT Resourcing Ltd acts as an employment agency and an employment business.
We value diversity and always appoint on merit.
React Native Developer
React Native Developer, Software Engineer, Fintech Start-up
A React Native Developer is required for a new project within a Fintech start up that is disrupting the market and making big moves within the industry, The React Native Developer will use a technology stack around React Native that they, alongside the development team management and architect decide is best suited for the project.
This is a great opportunity for someone to be the expert with React Native within a highly technical team of Software Engineers who mostly work with Java and JavaScript. The React Developer will be involved with the design and development of what is quite a greenfield project and be able to do some architecture and technology selection.
The software project is thought to go on for about 3-6 months, but it could be that they extend this far beyond the original dates with the company growing so fast, getting additional funding as well as new customers. The project will be scalable and will be using all the latest technologies available as well as methods of development. Think Agile, Java 11, JavaScript, AWS, Jest, TypeScript, Swift, Redux, TDD, BDD, UX Design, Atom, Nuclide, Visual Studio Code, Ignite, Vue.JS, React.JS, Expo, Flow, ESLint, Node.JS, Reactotron, Reduxsauce, InVision, Adobe XD – maybe even a little Swift or C++ etc.
So, if you are a React Native Developer and keen to really enhance your skillset and experience around this whilst working at an exciting FinTech Startup – please apply now for consideration.
- Oxford based
- £450-650 Depending on Experience and Skillset
- React Native Developer – Full lifecycle
- Fintech Start Up
Please apply now for immediate consideration!
React Native Developer, Software Engineer, Fintech Start-up
Referral Scheme: If this role isn’t for you then perhaps you could recommend a friend or colleague to Haybrook IT. If we go on to place that person in a permanent or temporary capacity then you could be rewarded with £500!! Please see our website for terms and conditions.
Haybrook IT Resourcing is Oxford’s leading IT recruitment agency. With exclusive access to some of the region’s most successful companies, send in your CV today to secure your next IT position.
Haybrook IT Resourcing Ltd acts as an employment agency and an employment business.
We value diversity and always appoint on merit.
Last 90 Days
Full Stack React Developer – React.JS
We are currently looking after an exciting opportunity for a Full Stack React Developer to join an innovative Fintech start up that are making big moves within the industry. The Full Stack React Developer will use a fantastic tech stack around React and React Native that they, alongside the development team management and architect decide is best suited for the project.
This is a unique opportunity for someone to be the expert with React and React Native within a highly technical team of Software Engineers who mostly work with Java and JavaScript. The Full Stack React Developer will be heavily involved with the design and development of a Greenfield project and the opportunity to select what technologies and architecture will be used.
The software project is thought to go on for about 3-6 months, but this could possibly be extended due to the company going through a massive expansion and them receiving additional funding as well as new customers. The project will be scalable and using all the latest technologies available as well as methods of development. Think Agile, Java 11, JavaScript, AWS, Jest, TypeScript, Swift, Redux, TDD, BDD, UX Design, Atom, Nuclide, Visual Studio Code, Ignite, Vue.JS, React.JS, Expo, Flow, ESLint, Node.JS, Reactotron, Reduxsauce, InVision, Adobe XD – maybe even a little Swift or C++ etc.
If you are a talented Full Stack React Developer and keen to really enhance your skillset and experience whilst working at an exciting FinTech Startup – please apply now to be considered.
- Oxford based (OX4)
- £450-650 Depending on Experience and Skillset
- Full Stack React Developer
- Fintech Start Up
This fantastic opportunity comes with some amazing benefits including Remote working, free parking, onsite gym, table tennis and many more.
Please apply now for immediate consideration!
React Native Developer, Software Engineer, Fintech Start-up
Referral Scheme: If this role isn’t for you then perhaps you could recommend a friend or colleague to Haybrook IT. If we go on to place that person in a permanent or temporary capacity then you could be rewarded with £500!! Please see our website for terms and conditions.
Haybrook IT Resourcing is Oxford’s leading IT recruitment agency. With exclusive access to some of the region’s most successful companies, send in your CV today to secure your next IT position.
Haybrook IT Resourcing Ltd acts as an employment agency and an employment business.
We value diversity and always appoint on merit.
Full Stack React Developer
Full Stack React Developer – React.JS, ReactNative, AWS
We are currently looking after an exciting opportunity for a Full Stack React Developer to join an innovative Fintech start up that are making big moves within the industry. The Full Stack React Developer will use a fantastic tech stack around React and React Native that they, alongside the development team management and architect decide is best suited for the project.
This is a unique opportunity for someone to be the expert with React and React Native within a highly technical team of Software Engineers who mostly work with Java and JavaScript. The Full Stack React Developer will be heavily involved with the design and development of a Greenfield project and the opportunity to select what technologies and architecture will be used.
The software project is thought to go on for about 3-6 months, but this could possibly be extended due to the company going through a massive expansion and them receiving additional funding as well as new customers. The project will be scalable and using all the latest technologies available as well as methods of development. Think Agile, Java 11, JavaScript, AWS, Jest, TypeScript, Swift, Redux, TDD, BDD, UX Design, Atom, Nuclide, Visual Studio Code, Ignite, Vue.JS, React.JS, Expo, Flow, ESLint, Node.JS, Reactotron, Reduxsauce, InVision, Adobe XD – maybe even a little Swift or C++ etc.
If you are a talented Full Stack React Developer and keen to really enhance your skillset and experience whilst working at an exciting FinTech Startup – please apply now to be considered.
- Oxford based (OX4)
- £450-650 Depending on Experience and Skillset
- Full Stack React Developer
- Fintech Start Up
This fantastic opportunity comes with some amazing benefits including Remote working, free parking, onsite gym, table tennis and many more.
Please apply now for immediate consideration!
React Native Developer, Software Engineer, Fintech Start-up
Referral Scheme: If this role isn’t for you then perhaps you could recommend a friend or colleague to Haybrook IT. If we go on to place that person in a permanent or temporary capacity then you could be rewarded with £500!! Please see our website for terms and conditions.
Haybrook IT Resourcing is Oxford’s leading IT recruitment agency. With exclusive access to some of the region’s most successful companies, send in your CV today to secure your next IT position.
Haybrook IT Resourcing Ltd acts as an employment agency and an employment business.
We value diversity and always appoint on merit.
Full Stack React Developer - React.JS, ReactNative, AWS
Full Stack React Developer - React.JS, ReactNative, AWS
We are currently looking after an exciting opportunity for a Full Stack React Developer to join an innovative Fintech start up that are making big moves within the industry. The Full Stack React Developer will use a fantastic tech stack around React and React Native that they, alongside the development team management and architect decide is best suited for the project.
This is a unique opportunity for someone to be the expert with React and React Native within a highly technical team of Software Engineers who mostly work with Java and JavaScript. The Full Stack React Developer will be heavily involved with the design and development of a Greenfield project and the opportunity to select what technologies and architecture will be used.
The software project is thought to go on for about 3-6 months, but this could possibly be extended due to the company going through a massive expansion and them receiving additional funding as well as new customers. The project will be scalable and using all the latest technologies available as well as methods of development. Think Agile, Java 11, JavaScript, AWS, Jest, TypeScript, Swift, Redux, TDD, BDD, UX Design, Atom, Nuclide, Visual Studio Code, Ignite, Vue.JS, React.JS, Expo, Flow, ESLint, Node.JS, Reactotron, Reduxsauce, InVision, Adobe XD - maybe even a little Swift or C++ etc.
If you are a talented Full Stack React Developer and keen to really enhance your skillset and experience whilst working at an exciting FinTech Startup - please apply now to be considered.
- Oxford based (OX4)
- £450-650 Depending on Experience and Skillset
- Full Stack React Developer
- Fintech Start Up
This fantastic opportunity comes with some amazing benefits including Remote working, free parking, onsite gym, table tennis and many more.
Please apply now for immediate consideration!
React Native Developer, Software Engineer, Fintech Start-up
Referral Scheme: If this role isn’t for you then perhaps you could recommend a friend or colleague to Haybrook IT. If we go on to place that person in a permanent or temporary capacity then you could be rewarded with £500!! Please see our website for terms and conditions.
Haybrook IT Resourcing is Oxford’s leading IT recruitment agency. With exclusive access to some of the region’s most successful companies, send in your CV today to secure your next IT position.
Haybrook IT Resourcing Ltd acts as an employment agency and an employment business.
We value diversity and always appoint on merit.
React Developer
We are currently recruiting for a contract Front-End React Developer to work on creating a proof of concept for a new in store experience for one of Europes biggest DIY retailers. This is an initial 3 month contract based in Kings Cross.
Skillset wise we are looking for someone with strong React and Redux experience. Experience with Node JS, Jest and Mocha is preferable.
If this sounds like a role you would be suitable for, please send your CV to [email protected]
Front End Developer
Watford - £375 - £475 per day
We're looking for a Front-end Developer to join our disruptive software start-up.
The Front-End Developer will be working on our world class products which is used by some of the biggest household fast food brands.
The role of the Front-End Developer will be creating a beautiful user experience of our world class product.
We are looking for a Front-End Developer who has worked with: -
- JavaScript, React.JS, Redux
- CSS, HTML5, AJAX, JSON and Bootstrap
- SQL and NoSQL (Postgres and Mongo desirable)
- Understanding of RESTful API's
- Experience with Testing Frameworks
As a Front-End Developer, you will be working within a team where a beautiful user experience is at the heart of everything we do.
Apply now for immediate considerations for this position!!
Key skills: React, Redux, JavaScript, CSS, HTML, ES6, Jenkins, Jest, Karma, Jasmine, REST, TDD, RESTful APIS's, Mongo, Postgres
Understanding Recruitment is acting as an employment agency for this vacancy.
React Native Developer, Software Engineer, Fintech Start-up.
React Native Developer, Software Engineer, Fintech Start-up
A React Native Developer is required for a new project within a Fintech start up that is disrupting the market and making big moves within the industry, The React Native Developer will use a technology stack around React Native that they, alongside the development team management and architect decide is best suited for the project.
This is a great opportunity for someone to be the expert with React Native within a highly technical team of Software Engineers who mostly work with Java and JavaScript. The React Developer will be involved with the design and development of what is quite a greenfield project and be able to do some architecture and technology selection.
The software project is thought to go on for about 3-6 months, but it could be that they extend this far beyond the original dates with the company growing so fast, getting additional funding as well as new customers. The project will be scalable and will be using all the latest technologies available as well as methods of development. Think Agile, Java 11, JavaScript, AWS, Jest, TypeScript, Swift, Redux, TDD, BDD, UX Design, Atom, Nuclide, Visual Studio Code, Ignite, Vue.JS, React.JS, Expo, Flow, ESLint, Node.JS, Reactotron, Reduxsauce, InVision, Adobe XD - maybe even a little Swift or C++ etc.
So, if you are a React Native Developer and keen to really enhance your skillset and experience around this whilst working at an exciting FinTech Startup - please apply now for consideration.
- Oxford based
- £450-650 Depending on Experience and Skillset
- React Native Developer - Full lifecycle
- Fintech Start Up
Please apply now for immediate consideration!
React Native Developer, Software Engineer, Fintech Start-up
Referral Scheme: If this role isn’t for you then perhaps you could recommend a friend or colleague to Haybrook IT. If we go on to place that person in a permanent or temporary capacity then you could be rewarded with £500!! Please see our website for terms and conditions.
Haybrook IT Resourcing is Oxford’s leading IT recruitment agency. With exclusive access to some of the region’s most successful companies, send in your CV today to secure your next IT position.
Haybrook IT Resourcing Ltd acts as an employment agency and an employment business.
We value diversity and always appoint on merit.
JavaScript / React Developer
JavaScript developer, react developer, developer, software solutions, HTML, CSS, technologies, technology, JSlint, ES6, React, OAuth, OpenID, Blockchain, BigData, testing, Mocha, API, Babel, Parcel, webpack, SASS, GraphQL, UI, UX, fintech, financial services, London
Investigo Change Solutions have been engaged to identify a JavaScript/React Developer to be instrumental in building and integrating key components for a financial services client based in London.
To apply you must have -
- At least 5 years of core development experience in JavaScript/React/GraphQL.
- Practical knowledge of modern HTML & CSS. Need to produce clean, responsive, hand-written, semantic code.
- Experience building web apps with JS/ES6 and React.js with excellent working knowledge of modern development platforms and methodologies, in particular API gateways, SSR, CSS in JSX (Glamorous), cloud and serverless infrastructure.
- Practical knowledge of relevant security protocols, digital certificates & writing applications that consume HTTP-based RESTful APIs.
- Significant experience consuming and interacting with APIs.
- Knowledge of and experience of using best software design patterns and best software development practices of frontend web application design.
- Practical knowledge of testing tools and linters: Mocha, Jest, Jasmine, JSLint etc.
- Practical knowledge of UI build toolchain: Babel, Parcel, Webpack, or similar, CSS pre-processors: SASS, Stylus, or similar.
- Experience turning wireframes into code.
- UI/UX design experience
- Thirst for and knowledge of emerging technologies, including Blockchain, BigData and Serverless.
Key deliverables and responsibilities will include;
- Working in a multi-disciplined agile project team, to deliver core business components over the next 6-12 months.
- Work alongside other developers with products built in JS, using React
- Take ownership of own quality, to write well-formed and fully documented code.
- Support the product owner, scrum master, tech architect, other developers and testers in the team to correctly document, size and prioritise stories.
- Participate in Agile ceremonies.
This is a contract role based in London paying £600-650pd, dependent on experience. It will be for an initial 6 months with significant chance of extension.
JavaScript developer, react developer, developer, software solutions, HTML, CSS, technologies, technology, JSlint, ES6, React, OAuth, OpenID, Blockchain, BigData, testing, Mocha, API, Babel, Parcel, webpack, SASS, GraphQL, UI, UX, fintech, financial services, London
BBBH79393_154903715284814
UI consultant needed, Edinburgh, varied and challenging work
A self-motivated and ambitious UI consultant is needed for a leading consultancy, with offices on the outskirts of Edinburgh.
Projects will vary from working on websites & systems to touchscreen products, so rather interesting stuff!
This will be for an initial 8 months, with day rates on offer between £340-£370pd (outside of IR35). Extensions anticipated. We can wait up to three weeks for the right person to start, though ideally sooner.
The following are the tech skills required:
- -HTML 5, JavaScript / ECMAScript 6
- -CSS / SASS / LESS
- -React & JSX
- -Bootstrap
- -Websockets
- -Experience with REST and/or SOAP services using data schemas such as JSON and XML
Desirable / On more general side of things:
- experience of responsive design
- -Knowledge of Automated and Manual Testing processes (Mocha, Jest etc.)
- -Experience of Agile Scrum, Fast Iterative Environments and Version Control (ideally Git)
UX and user research skills - Task analysis, mapping, user journeys, personas, wire-framing etc.
Please note for this client we can only accept candidates who hold a UK passport for this role
If you are interested in this position then please send me your latest CV. You can call me in the Manchester Progressive offices also or find me on Linkedin In.
To find out more about Progressive Recruitment please visit www.progressiverecruitment.com
Progressive Recruitment, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy | Registered office | 1st Floor, 75 King William Street, London, EC4N 7BE, United Kingdom | Partnership Number | OC387148 England and Wales
Contract - Front End Developer - 3 months - Euston - Immediate start
My client is seeking a front-end developer to join its growing development team and help the company create first-in-class digital multimedia and analytics products.
They are one of the largest providers of children’s video content on YouTube, and make extensive use of YouTube’s APIs to build internal tools that help them manage a network of over 300 channels across dozens of major brands, such as the Teletubbies, Fireman Sam, Caillou, and many more.
The ideal candidate will have experience working with the React frameworks to build Universal Single Page Applications for web and React Native for multi-platform mobile applications, using the write-once run-everywhere philosophy. They will work closely with the back end PHP developers to create state of the art applications.
We are looking for a front-end developer who:
Has a minimum of 2 years’ work experience and a proven track record with ReactJS (existing projects on GitHub or elsewhere is beneficial) to both and web and mobile applications
Ideally has experience of building applications in the digital video and/or online advertising industry (a benefit)
Has the mindset to document work flows, codebase and write tests from the get-go
Has experience using technologies such as Git, Yarn, Node, Jest/Tape
Has experience using authentication processes such as JWT, oAuth2
Can hit the ground running and work well within a team taking ownership from the get-go
Has an entrepreneurial work ethic and likes problem solving
Responsibilities
Maintain and develop existing web application, turning it into a Universal SPA using ReactJS components
Planning work in advance alongside existing business requirements and managing stakeholder expectations
Take responsibility for the whole life cycle of the Universal SPA
Skills & Requirements
Strong proficiency in JavaScript
Competent and engaging in working as part of a team
Thorough understanding of React.js and its core principles
Experience with popular React.js data flows such as Flux or Redux, ideally BaobabJS
Knowledge of isomorphic ReactJS is a must
Excellent general development skills and familiarity with modern javascript development practices. Ideally, this would include experience with version control, unit testing, continuous integration and code quality tools such as eslint / jshint
Rates by region
| London | £531/day |
| UK | £494/day |