DAZN is a tech-first live streaming service for sports fans.
We use a very modern tech stack to stream content to millions of concurrent viewers globally across multiple platforms and devices. The architecture of DAZN is based on Micro Frontends and unifies a range of technologies in order to deliver a seamless user experience.
This is an ambitious project with a fast release cycle that has scalability not only from a user point of view but also from a developer perspective. Imagine a tech start up culture but with the security and backing from a well established content and media agency.
Our engineers work in small teams and are given freedom and autonomy when it comes to the code that they write. If you like solving technical problems then this is the place to be. We have a community that is here to help. We have a large network of people who talk at conferences so you have that access to ask questions and discuss ideas.
We invest a lot in self-learning. Developers have the opportunity to deliver lightning talks on whatever they are working on to their colleagues on a regular basis. We also host events and enjoy bringing the community into our offices for talks and hackathons.
We are bringing something truly disruptive to a traditional marketplace and we would love to hear from ambitious and creative engineers.
Follow @dazneng on Twitter and Facebook for updates from our engineering team.

Created in 2010 by Yann Doussot and Malo Gaudry, ekino is a digital consulting and production group that supports its clients for 10 years in imagining, creating and putting up new products and services on the market. Since its beginnings, ekino’s ambition has been to be a positive digital player which develops solutions that have a real impact on people’s lives. Respectively specialised in engineering and business/marketing, Yann and Malo created ekino to address both business and technological challenges for multinational and start-up companies. Conscious of the speed at which businesses and new innovations are evolving, ekino’s teams integrate design, innovation, consulting, tech and data, ensuring fast industrialization of consistent, innovative, evolving and lasting solutions. Operating in 6 countries (France, UK, USA, Vietnam, Singapore and India), it is more than 500 digital enthusiasts and experts working together since always. Since 2016, ekino is part of Havas Group, with more than 20 000 experts in the world (communication, media, marketing, events), ensuring a stability and an overall expertise to address all present and future digital challenges.

AWS Amplify makes it easy to create, configure, and implement scalable mobile applications powered by AWS. Amplify seamlessly provisions and manages your mobile backend and provides a simple framework to easily integrate your backend with your iOS, Android, Web, and React Native frontends. Amplify also automates the application release process of both your frontend and backend allowing you to deliver features faster.

Bloomberg’s 5,000+ engineers are building the world's most trusted information network for financial professionals. ​We’re strongly committed to JavaScript, with over 10,000 front-end apps and one of the world’s largest JS codebases. We participate in steering the direction of JS as part of TC39.

At vente-privee Tech, our heart goes to the ones who really loves IT. Based in several cities (Paris, Amsterdam, Warsaw, Lyon…) we love to say ‘It’s not you who comes to us but it’s us who come to you !’ Today, more than 400 IT employees, among numerous projects, developed with passion some reliable and innovative solutions on web tools. We are the right people and we trust them with their choices, which means we use a vast variety of languages, systems, and tools (e.g., React, C#, Haskell, Python, Cassandra, Couchbase, MongoDB, Kubernetes, …)

At leboncoin we modernized our web stack a year ago. We’ve chosen react/redux and are very happy with it. We’re commited to a high quality migration with 100% unit test coverage. Excited by this adventure? Join the crew!

Progress offers everything a developer could need to build modern apps with outstanding UI. We built the KendoReact UI component library from the ground up (zero dependencies) to make developing for React easier. KendoReact comprises of 55+ professionally-built and feature-rich UI and data viz components that are developed to perform. Stop by our booth to see demos of our highly customizable Grid, Chart, DatePicker, Editor, TreeView, Themes and more – anything you’re curious about, really.

Be Part of Something Big At Criteo, we connect 1.5 billion active shoppers with the things they need and love. Our technology takes an algorithmic approach to predict what user we show an ad to, when, and for what products. Our dataset is about 50 petabytes in Hadoop (more than 120 TB extra per day) and we take less than 10ms to respond to an ad request. This is truly big data and machine learning without the buzzwords.

Crystallize is a headless commerce service enabling developers to build tailor­made e­commerce experiences with subscriptions and virtual products. The core of Crystallize is our blazing fast GraphQL API. Ideal for React. It allows developers to build custom apps using our React components and drive sales with subscriptions that are easily integrated using webhooks for entitlements and automation. Developer experience and time to market are our main drivers since milliseconds matter.
At Crystallize we are a bunch of international people. We can offer varied but challenging work being part of a team launching the most innovative products supported by digital brilliance.
Our office is located in Skien, in the south of beautiful Norway. Have a look at our job offers and let us know if you think you’d be a good match. We’d love to hear from you.

Datadog is a SaaS-based monitoring and analytics platform for cloud-scale infrastructure, applications, logs, and more. Datadog delivers complete visibility into the performance of modern applications in one place through its fully unified platform - which improves cross-team collaboration, accelerates development cycles, and reduces operational and development costs.
How do you keep a data-intensive, real-time service that monitors tens of thousands of servers, up and running around the clock? What should the infrastructure look like when Datadog monitors a million servers? If you think you have the answers, join our team. Datadog is hiring engineers in our Paris, Boston, and New York offices, as well as remotely around the globe.

Ad tech platform that revolutionizes the way publishers create, optimize and monetize mobile websites. With the service supporting 800M+ of monthly users, we are continuously obsessed about performance and mobile loading times. So much that we are working on opening our platform to external developers.
p.s. If your first name is SSR, your last name is Chunking, you’re Styled Component and want to actively contribute to the biggest PWA platform, in terms of the critical path, pre-rendering and 100 Lighthouse score, join us!
[email protected]