Remote
0
USD
/hr

294 Jest contracts

Front End Software Engineer

3 days ago
$550/dayRemoteBPS World

Front End Software Engineer

Type: Contract

 

We are looking for Front End Software Engineers to join a well-known and highly regarded media and publishing company operating across the digital and traditional print. Whilst the positions are currently remote working when restrictions allow there will be a requirement to travel into their Central London office but the flexibility to do this can be agreed.


As a Contract Front End Software Engineer, you will be a key component of a team delivering quality software. You will interact with product owners and stakeholders, contribute to the technical conversations, and ensure that what my client build is best in class and fit for purpose. You will also report to a Principal Engineer and will help him/her deliver on the technical strategy and tactical implementation. You will also mentor other engineers to bring them up to your standards.


Day rate between £450 and £550 per day dependant on experience.


Required skills & Experience:

  • TypeScript
  • React
  • Express
  • Jest
  • TDD


For more information please apply with a resume.

Get new remote Jest contracts sent to you every week.
Subscribed to weekly Jest alerts! 🎉

Senior Front-End Platform Engineer

9 days ago
RemoteHopin

The Role

Hopin is seeking a Front-end Platform Engineer who is self-driven, passionate and ambitious! We're looking for someone with strong experience in building Front-end libraries, tooling, setting up developer processes (CI/CD, Logging, Monitoring) as well as developing architectural patterns that allow multiple engineering teams to collaborate without friction.

We're excited to be working with someone who is highly motivated, comfortable in a fast-paced start-up environment and is happy to work with a remote team. We're currently more than 50 and growing.

Responsibilities

  • Work with other team members designing and delivering libraries, tooling and processes for our developers.
  • Have a strong focus on automation and efficiency.
  • Think strategically about how to evolve our products.
  • Have a desire and ability to solve open-ended problems in a highly-functional way.
  • Collaborate effectively with other team members to find solutions to problems.
  • Accountable for all parts of the software development lifecycle.
  • Participate in code reviews and actively provide feedback on others’ designs/code.
  • Makes tactical vs. strategic trade-offs.
  • Qualifications

    Required:

  • 5+ years of experience working in a commercial environment doing Full-stack or Front-end software development
  • Demonstrate experience in Front-end developer tooling (eg. Webpack, Babel, Rollup, Lerna)
  • Demonstrate experience in React
  • Unit and Functional testing tools (React Testing Library, Jest, Tape, Cypress Testcafe)
  • Visual regression / E2E tools (Cypress, Testacafe, Percy)
  • Understanding of hot reloading, linting, formatting, server side rendering and micro frontend approaches
  • Demonstrable experience learning new technologies on your own.
  • Knowledge in best practices for the whole software development cycle (TDD/CI/CD) and agile methodologies.
  • Good knowledge of version control.
  • Ability to use a wide variety of open source technologies and tools.
  • Great written and spoken English.
  • Able to work directly with business stakeholders - can articulate business needs and translate them into technology solutions.
  • Comfort with collaboration, reaching across teams, and focusing on business outcomes.
  • Nice to have:

  • TypeScript and/or Flow
  • Developing CLI tools
  • Contract Testing (eg. Pact, Dredd)
  • Accessibility standards
  • Performance testing (eg. Lighthouse)
  • Internationalisation tooling (eg. i18n approaches)
  • Knowledge of Git and GitHub.
  • Experience with Micro-frontends architecture
  • Experience with Observability tools
  • The Offer

  • Competitive salary
  • Fully remote team, work from any corner of the world
  • Flexible schedules
  • Laptop assigned, Mac or Windows
  • 800 USD for Home-Office set up
  • At Hopin , we're committed to cultivating an environment that promotes equality, diversity, and inclusion. We are a global community and we believe our unique qualities must be celebrated as they are critical to our innovation. It's essential to us that you bring your authentic self to work every single day, no matter your age, ethnicity, religion, citizenship, gender identity, sexual orientation, disability status, neurodiversity, or otherwise. Inclusion isn't just an initiative at Hopin. We strive to embed it not just into our core values but throughout our entire ecosystem.

    React Software Developer

    10 days ago
    $400 - $450/dayRemoteAdSwipe

    React Developer | Remote Based | 3-4 Week Contract

     

    Distinct are supporting a Nottingham-based client in their search for 2 contract react engineers for a 3-4 week project.

     

    This opportunity is with an exciting fintech start-up who are looking to build out a comparison journey. They have built this bespoke application for a few of their partners and are now looking to build a white-label version.

    Key Skills:

    • React JS: Ideally v 16, minimum 3 years’ experience
    • React frameworks - Redux
    • Single page applications / spars  
    • JS / HTML / CSS
    • Webpack
    • Functional programming
    • TDD using something like Jest 
    • Experience delivering a workstream yourself

     

    This is a fully remote contract to start ASAP. They would like to pay around £400 - £450 per day for this short term contract, but if you wish to price yourself competitively it will increase your chances of securing the role.

     

    If you would like to be considered for this role please don’t delay, apply now for immediate consideration.

    React Software Developer

    27 days ago
    $400 - $450/dayRemotejobswipe

    React Developer | Remote Based | 3-4 Week Contract

     

    Distinct are supporting a Nottingham-based client in their search for 2 contract react engineers for a 3-4 week project.

     

    This opportunity is with an exciting fintech start-up who are looking to build out a comparison journey. They have built this bespoke application for a few of their partners and are now looking to build a white-label version.

    Key Skills:

    • React JS: Ideally v 16, minimum 3 years’ experience
    • React frameworks - Redux
    • Single page applications / spars  
    • JS / HTML / CSS
    • Webpack
    • Functional programming
    • TDD using something like Jest 
    • Experience delivering a workstream yourself

     

    This is a fully remote contract to start ASAP. They would like to pay around £400 - £450 per day for this short term contract, but if you wish to price yourself competitively it will increase your chances of securing the role.

     

    If you would like to be considered for this role please don’t delay, apply now for immediate consideration.

    Contract React Developer

    27 days ago
    $400 - $450/dayRemotejobswipe

    Contract React Developer | Remote Based | 3-4 Week Contract

     

    Distinct are supporting a Nottingham-based client in their search for 2 contract react engineers for a 3-4 week project.

     

    This opportunity is with an exciting fintech start-up who are looking to build out a comparison journey. They have built this bespoke application for a few of their partners and are now looking to build a white-label version.


    Key Skills:

    • React JS: Ideally v 16, minimum 3 years’ experience
    • React frameworks - Redux
    • Single page applications / spars  
    • JS / HTML / CSS
    • Webpack
    • Functional programming
    • TDD using something like Jest 
    • Experience delivering a workstream yourself

     

    This is a fully remote contract to start ASAP. They would like to pay around £400 - £450 per day for this short term contract, but if you wish to price yourself competitively it will increase your chances of securing the role.

     

    If you would like to be considered for this role please don’t delay, apply now for immediate consideration.

    Full Stack JS Engineer (Reactjs) - Contract - Creative Agency - UK (Remote)

    27 days ago
    Remotejobswipe

    API Integrations Engineer

    Contract

    Creative Agency 

    InterQuest are partnering a well-known Creative Agency and we are looking for an API Integrations Engineer to join them on a freelance basis for initially 3 months.

    The API Integration Engineer will work with the lead full-stack engineer, technical director, and Tech team to integrate a content platform with a Google Campaign Manager platform. The ideal candidate will have excellent modern JavaScript skills and experience developing backend applications, middleware and APIs, specialising in integrating APIs.

    Experience/Requirements

    • API Development
    • API Integrations

    Technical Requirements

    • JavaScript ES6+
    • TypeScript
    • NodeJS
    • Jest Testing
    • GIT
    • GraphQL
    • MongoDB

    If interested in the above, please apply with an updated copy of your CV and a member of the InterQuest team will be in touch.

    Contract React Developer

    28 days ago
    $400 - $450/dayRemoteAdSwipe

    Contract React Developer | Remote Based | 3-4 Week Contract

     

    Distinct are supporting a Nottingham-based client in their search for 2 contract react engineers for a 3-4 week project.

     

    This opportunity is with an exciting fintech start-up who are looking to build out a comparison journey. They have built this bespoke application for a few of their partners and are now looking to build a white-label version.


    Key Skills:

    • React JS: Ideally v 16, minimum 3 years’ experience
    • React frameworks - Redux
    • Single page applications / spars  
    • JS / HTML / CSS
    • Webpack
    • Functional programming
    • TDD using something like Jest 
    • Experience delivering a workstream yourself

     

    This is a fully remote contract to start ASAP. They would like to pay around £400 - £450 per day for this short term contract, but if you wish to price yourself competitively it will increase your chances of securing the role.

     

    If you would like to be considered for this role please don’t delay, apply now for immediate consideration.

    JavaScript React Engineer - Contract

    5 hours ago
    £450 - £500/dayRemoteHarnham

    Harnham have partnered with a UK based AI start up, they are building a revolutionary object detection platform and need the expertise of an experienced JavaScript (React) contractor. All of the data is gathered from live streams and the application that you would be working on is a complex video streaming application. For this role you would be mentoring one mid-level developer and leading from a technical perspective on a greenfield project, you should have experience working on some of the following technologies:

    • JavaScript (ES6/ES7)
    • React.js library
    • App state management (Redux)
    • TDD (Jest)
    • Data Visualisation (D3) - Nice to have
    • Working on complex software applications
    • Mentoring/Leadership

    This contract is for 6 months initially, can be operated fully remote and pays a day rate of up to £500.day. If this is something that you are interested in please send through an up to date copy of your CV and I will reach out to you shortly after.

    JavaScript Developer - Remote - UK-based

    4 days ago
    RemoteOliver Bernard

    JavaScript Developer - Remote - UK-basedHighy technical Javascript Developer required for tech-driven digital consultancy based in Central London. The Javascript Developer will be working on a next-gen JavaScript stack developing a highly scalable platform which processes millions of data points per day. Parts of your work would be Greenfield. The role will be fully remote initially, with an option to stay fully remote (UK-based) after the pandemic if you wish.

    The successful JavaScript Developer will be working within an Agile team who are passionate about creating clean, well-crafted, maintainable code to ensure they create truly best-in-class products for their clients. The succesful JavaScript Developer will possess commercial experience with the following technologies:

  • ReactJS
  • NodeJS
  • JavaScript / Typescript
  • API Development
  • Testing tools - Jasmine / Jest etc
  • SASS / CSS / PostCSS
  • If you're interested in a new full-stack JavaScript Developer contract, please apply within

    React Developer / Remote / Outside IR35

    13 days ago
    £350 - £450/dayRemoteOutside IR35SR2

    React Developer / Remote / Outside IR35

    SR2 is hiring for a product team based remotely who are building an industry-disrupting platform and they are looking for a Front End React Developer to join for at least 6 months.

    Experienced required:

    • Universal JS and Server Side Rendering (Next.js)
    • HTML5 APIs and CSS3
    • ECMAScript syntax and functionality
    • Test-Driven Development and testing frameworks (Jest, React Testing Library)
    • familiarity with backend frameworks (Symfony, Laravel)
    • Git, Docker, and cloud platforms
    • Some familiarity with React Native would be a plus
    • Agile development is a must

    Please apply or contact Tom F at SR2 to hear more.

    React Developer / Remote / Outside IR35

    JavaScript Developer - React and Node - Outside IR35

    19 days ago
    RemoteOutside IR35Oliver Bernard

    JavaScript Developer - React and Node - Outside IR35Highy technical Javascript Developer required for cutting edge government project based in Central London. The Javascript Developer will be working on a next-gen JavaScript stack developing a highly scalable platform which processes millions of data points per day. Parts of your work would be Greenfield. The role will be fully remote initially, with an option to stay fully remote (UK-based) after the pandemic if you wish.

    The successful JavaScript Developer will be working within an Agile team who are passionate about creating clean, well-crafted, maintainable code to ensure they create a truly best-in-class product. The role is primarily front-end (ReactJS) focussed, but you would be doing a small amount of back-end (NodeJS) also. The succesful JavaScript Developer will possess commercial experience with all of the following:

  • ReactJS
  • Typescript
  • NodeJS
  • GraphQL
  • React Hooks
  • Testing tools - Jasmine / Jest etc
  • If you're interested in a new full-stack JavaScript Developer contract, please apply within

    CMS Developer (Contentful) - Contract - Creative Agency - UK, Remote (Outside IR35)

    20 days ago
    RemoteOutside IR35AdSwipe

    API Integrations Engineer

    Contract

    Creative Agency 

    InterQuest are partnering a well-known Creative Agency and we are looking for an API Integrations Engineer to join them on a freelance basis for initially 3 months.

    The API Integration Engineer will work with the lead full-stack engineer, technical director, and Tech team to integrate a content platform with a Google Campaign Manager platform. The ideal candidate will have excellent modern JavaScript skills and experience developing backend applications, middleware and APIs, specialising in integrating APIs.

    Experience/Requirements

    • API Development
    • API Integrations

    Technical Requirements

    • JavaScript ES6+
    • TypeScript
    • NodeJS
    • Jest Testing
    • GIT
    • GraphQL
    • MongoDB

    If interested in the above, please apply with an updated copy of your CV and a member of the InterQuest team will be in touch.

    Open-Source Developer

    1 month ago
    RemoteMedix
    JOB DESCRIPTION

    Medix is currently seeking an Open-Source Developer for an exciting contract to hire job opportunity with our client in Orange County (Anaheim area)

    This role will start remotely due to the COVID pandemic. Long-term, there will be the opportunity to continue working remotely, with some on-site work required.

    ABOUT OUR CLIENT
    Our client is a large professional services organization that is seeking to deliver on their new SEO Strategy in upgrading their legacy web portfolio to responsive web design with single page applications. This Open-Source Developer will be joining an Agile Development Team in creating highly scalable, high-performance web solutions using Javascript / Typescript libraries and frameworks such as React.js, Vue.js, Angular.

    RESPONSIBILITIES

  • Working in an Agile team to develop responsive, single-page applications 
  • Working exclusively within an open-source environment - MongoDB with Express.js, React / Angular / Vue and Node.js. (MEAN/MERN/MEVN)
  • Working with Express.js and MongoDB on the back-end to process large amounts of dynamic, non-relational data.
  • Designing and develop interactive, custom UI components 
  • Employing techniques like code refactoring to build scalability and effective, quick development
  • Using Node.js to deliver data-intensive, real-time processing applications that run across distributed devices.
  • Unit-testing using Jasmin or Jest
  • Maintaining code updates in Git
  • REQUIRED SKILLS & QUALIFICATIONS

  • Required Bachelor of Science Degree in a Computer Science, or related field 
  • 5+ years of full-stack application development 
  • Required 3 years experience in Angular, Vue.JS or React.js
  • Experience with MongoDB, or a similar NoSQL Database platform.
  • ADDITIONAL INFORMATION
    Client Location: Anaheim, CA
    Work Location: Temporarily Remote (due to COVID)
    Position Type: W2 Contract To Hire 
    Hourly Rate: Negotiable

    Benefits: As a W2 employee of Medix, you will have the eligibility to participate in talent benefits program, which includes Major Medical PPO Insurance, Dental/Vision insurance, accrued paid time off and a 401K retirement plan with Medix matching.


    Local Los Angeles & Orange County candidates preferred for eventual on-site work - no relocation or travel expenses are offered.

    Please note - talent must be eligible to work directly for Medix, without the need for work-visa sponsorship now, or in the future. Please no agency or C2C inquiries.

    Mid Level Front End Engineer - REMOTE

    5 days ago
    RemoteIntellisoft Technologies
     

    Mid Level Front End Engineering

    Remote

    12 month contract +

     

    Project Scope / Components:

     

    ·         This role is a Core Team for client site. Anything prior to the log-in is the public (core) site, and that's what this resource will work. At this stage they don't have something specific on a burn-down that they need.   

     

    High-Level Individual Duties:

     

    ·         Overall add value to the team. Build features, enhancements, refactoring, troubleshooting as well as work some UI aspects on a Bloomreach CMS system which is the backend of the application and deployed to AWS.

     

    Must-Haves (Concepts & Tools):

    ·         Vanilla JS (ES 6 or 7)

    ·         React-Redux (another project is using Hooks)

    ·         HTML / CSS

    ·         Unit testing in frameworks like Jest

    ·         Testing for CI/CD integration

    o   Cypress.io is REALLY nice to have

    ·         CI/CD & DevOps experience concepts (they use Git)

    o   Containerized apps

    ·         Nodejs for compilation

     

    Nice-to-Haves (Concepts & Tools):

    ·         Bloomreach CMS

    ·         AWS

    JavaScript React Engineer - Outside IR35/Remote

    24 days ago
    £475 - £525/dayGreat rateRemoteOutside IR35Harnham

    We have an urgent contract role that has become available for one of our leading AI clients.

    The business is looking for an experienced JavaScript/React engineer to join up with their software team. The applications that the client develop are highly data-driven and this is a core JavaScript engineering role with a focus on functionality development. Please see brief details below:

    • Modern JavaScript programming (ES6/ES7)
    • Experience working on Data Driven Applications
    • Expert level ReactJS programming
    • Working with state management Redux
    • Working with REST Web Services
    • Test Driven Development (Jest, Jasmine etc)

    Are you currently looking for a new JavaScript project? This role is urgent with the client ideally looking for someone to start over the next two weeks, the role is for 6 months initially can be operated fully remote and pays £500.day. If you are interested in the project please send through an up to date copy of your CV.

    Java Developer Remote to start

    9 days ago
    RemoteGeorgia IT Inc.
    Java Developer Remote to start
    Location : Columbus, OH
    Rate : DOE
    Type : Contract
    Start date : Immediately

    US Citizens and Green Card, GC-EAD and TN VISA accepted.

    Job description
    • Java development experience
    • Knowledge of Spring Boot
    • PL/SQL will be helpful for some roles as there is a good bit of work in this space
    • Knowledge of JavaScript and React including legacy technologies for JavaScript
    • Knowledge of Unit testing for both front end and backend technologies
    • Jest Unit testing which is a current miss for the RMS team
    1. Java SE
    2. Java EE
    3. HTML
    4. JavaScript (Prototype/JQuery)
    5. Spring 2.5.5
    6. XML
    7. PL/SQL
    • Retail experience is helpful
    • Core Merch, Planning, Allocations, Sourcing application experience is helpful
    • Good communication skills
    • Team player
    • Agile development team experience

    Senior SharePoint Developer/Technical Lead

    10 days ago
    RemoteAdSwipe
    London/Remote working

    Senior SharePoint Developer / Technical Lead to work on a migration project from On Premise to Online. 10 month contract, remote working until at least the summer.

    Our client, is running a large amount of applications and are looking for a SharePoint Developer who code and update these apps as well as take part in a migration project from SharePoint 2013 to SharePoint Online.

    You will have experience developing a range of technologies, working with Azure DevOps to manage source code, covering the applications lifecycle and will have extensive SharePoint development experience in both SharePoint 2013/2016 and SharePoint Online.

    Experience with technical design and technical architecture is required – including an understanding of the technical architectures of both SharePoint On-Premise and Online.

    You will need to have strong experience of Microsoft development using C#, Angular, PowerShell and Agile

    Any experience with Dynamics 365, Jest, Nunit and MSTEST and Specflow would be desirable but not essential
    Role: Senior SharePoint Developer/Technical Lead
    Job Type: Contract
    Location: London, London,

    Apply for this job now.

    React Native Developer at Sports Startup

    20 days ago
    $40 - $50/hourRemotePredictive Sports Science, LLC
    Job details
    Salary
    $40 - $50 an hour
    Job Type
    Full-time
    Contract
    Qualifications
      • Bachelor's (Required)

      • React Native: 3 years (Required)

      • JavaScript: 5 years (Required)

      • Mobile app development: 5 years (Required)

      • Software development: 7 years (Preferred)

      • Unit testing: 3 years (Preferred)

      • TypeScript: 2 years (Preferred)

    Full Job Description

    React Native Mobile App Developer at Sports Startup

    Summary:

    How would you like to use your React Native skills to help build a cross-platform mobile app for a Sports Startup? You will be working with an experienced cross-functional team to develop a mobile app that presents end users with better sports predictions based on algorithms we’ve developed.

    The position is a 3-month, full-time, contract with the potential to join the team as a full-time employee.

    Your effort will lead to a new product launch later this year.

    Job duties:

    • Work as part of the team to build a cross-platform React Native mobile app.
    • Work in collaboration with a cross-functional team that includes a UI designer, data scientists, statisticians, project management, marketing, cloud architect, and full-stack developer.
    • Develop the app using the React Native framework and TypeScript based on designs and specs provided by the team.
    • Write clean, well-organized, modular code.
    • Write and maintain unit and integration tests.
    • Participate in technical decisions.
    • Assist with integrating app with back-end services, account management, payment processing, or other 3rd party APIs.

    Requirements:

    • Bachelor Degree or higher.
    • 3+ years of development experience with React Native.
    • 5+ years of mobile app development experience.
    • 5+ years of development experience with JavaScript.
    • Expert at React Native development, building screens to match designs, and building workflows.
    • Expert at state management within React Native.
    • Experience with Jest or other testing frameworks.
    • High standards when it comes to code quality and user experiences.
    • An understanding of React Native best practices and commitment to following them.
    • Able to independently perform development tasks quickly based on designs and specs.
    • Able to stay connected and communicate progress successfully remotely via email, Slack, and Trello.
    • Positive, pleasant, and productive.
    • Able to take ownership of your work, work successfully independently, and as part of the team.

    Preferred:

    • 7+ years of professional development experience.
    • 2+ years of development experience with TypeScript.
    • Experience developing with React Native CLI, not Expo.
    • Experience deploying React Native app to iOS and Android devices for testing (without Expo).
    • Experience publishing React Native app successfully to Google Play and Apple App Store.

    Job Types: Full-time, Contract

    Pay: $40.00 - $50.00 per hour

    Benefits:

    • Flexible schedule

    Schedule:

    • Monday to Friday

    Education:

    • Bachelor's (Required)

    Experience:

    • React Native: 3 years (Required)
    • JavaScript: 5 years (Required)
    • Software development: 7 years (Preferred)
    • Unit testing: 3 years (Preferred)
    • TypeScript: 2 years (Preferred)
    • Mobile app development: 5 years (Required)

    Work Location:

    • Fully Remote

    This Company Describes Its Culture as:

    • Innovative -- innovative and risk-taking
    • Outcome-oriented -- results-focused with strong performance culture
    • People-oriented -- supportive and fairness-focused
    • Team-oriented -- cooperative and collaborative

    Company's website:

    • https://predictivesportsscience.com/

    COVID-19 Precaution(s):

    • Remote interview process
    • Virtual meetings

    Angular Developer

    16 days ago
    RemoteComputer Futures

    One of my clients based in Cardiff is looking for a Angular developer to join them on a 6 month contract at the start of February.

    The role will be fully remote and they are looking to start reviewing CV's from Monday. Below are the details and skills needed for the role:

    On the technical side you will have...

    ● A minimum of 5 years Javascript framework experience (Angular)

    ● Experience of using version control in a team environment

    ● Strong HTML and CSS skills

    ● Experience of testing frameworks within Javascript (Jest, Jasmine, Mocha)

    And, ideally, you will also have…

    ● Experience developing Ionic applications

    ● Experience developing with Typescript and ES2016+

    ● Experience with creating deployable Electron applications

    ● Good working knowledge of task runners - ideally Webpack-related

    ● Knowledge of Flux-inspired architecture

    ● Worked with APIs, databases, and related supporting architecture

    ● A love of clean coding practices (SOLID, Hexagonal, etc)

    Please apply below if you are interested in the role.

    Please click here to find out more about our Key Information Documents. Please note that the documents provided contain generic information. If we are successful in finding you an assignment, you will receive a Key Information Document which will be specific to the vendor set-up you have chosen and your placement.

    Lead JavaScript Engineer 100% Remote

    7 days ago
    RemoteGeorgia IT Inc.
    Lead JavaScript Engineer 100% Remote
    Location : Milwaukee, WI
    Hire Type : Contract to hire
    Start : Immediately
    Salary plus benefits

    US Citizens and Green Card, GC-EAD and TN VISA accepted.

    Job Description:
    • 5+ years of professional development experience in JavaScript.
    • 3+ years of professional development experience in ReactJS.
    • Experience with Redux, Context or similar for state management
    • Working knowledge of Express or similar server.
    • Working knowledge of Jest, Enzyme or React-Testing-Library
    • Experience with Github or Gitlab for source code management
    • Experience in coaching and mentoring software engineers
    • Excellent communication skills