Contexte de la mission : Dans le cadre de projets front-end complexes, nous recherchons un Développeur Senior JavaScript spécialisé dans la conception, l'évolution et l'industrialisation de librairies front-end. Le consultant interviendra sur des problématiques de performance, modularité, compatibilité, intégration et industrialisation, avec une forte exigence sur la qualité et la stabilité du code. Il travaillera en collaboration étroite avec les équipes Front-End, Web, Mobile et Exploitation/Ops, dans un environnement Agile. Expertises techniques requises : JavaScript natif * Expertise du JavaScript natif / Vanilla JS, notamment ES6+. * Très bonne compréhension du fonctionnement interne du langage et de ses mécanismes. * Capacité à développer sans dépendre exclusivement de frameworks du marché. Programmation réactive : * Solides références dans l'utilisation de RxJS. * Maîtrise de la gestion de flux de données complexes et asynchrones. Architecture de librairies : * Maîtrise avancée de la gestion des dépendances. * Expertise en matière de modularité et de compatibilité entre différents environnements. * Capacité à concevoir et maintenir des librairies front-end robustes et réutilisables. Industrialisation et Bundling : * Expertise des outils de build et d'optimisation tels que Webpack, Vite et Turbo. * Capacité à produire des bundles légers et performants. * Maîtrise des outils et mécanismes d'optimisation tels que Babel, Uglify, CSSMin et FileRev. Écosystèmes historiques et migration : * Connaissance de RequireJS pour assurer la maintenance ou accompagner la transition de systèmes existants. Tests et qualité logicielle : * Excellente maîtrise des tests unitaires et fonctionnels Front-End. * Pratique confirmée du TDD (Test Driven Development). * Capacité à mettre en place une stratégie de tests garantissant la stabilité et la pérennité des librairies. Standards Web et intégration : * Maîtrise de HTML5 et CSS3. * Attention particulière portée à laperformance du rendu et à l'optimisation des interfaces. Architecture et intégration système : * Bonne compréhension des architectures micro-services. * Bonne maîtrise des principes de conception et de consommation d'API REST. * Capacité à assurer une intégration fluide entre les librairies front-end et les différents backends. Versioning et industrialisation : * Maîtrise experte de Git. * Expérience des workflows complexes, stratégies de branching et problématiques de versioning de librairies. Collaboration et communication : * Capacité à communiquer efficacement avec les équipes Front-End, Web et Mobile. * Aptitude à partager et à promouvoir les bonnes pratiques de développement. * Collaboration étroite avec les équipes Exploitation / Ops lors des phases de déploiement et de monitoring. Méthodologie Agile : * Expérience des environnements de travail collaboratifs en méthodologies Agile, notamment Scrum et Kanban. * Forte capacité à échanger et à argumenter autour des choix techniques.
Javascript and Agile Software Developer – Central London The Client Developer will be responsible for the development and delivery of all client side aspects of our product, developing new features and launching new platforms. A successful candidate will have a proven ability in delivering customer facing JavaScript applications, in an Agile software development environment and a passion for building a world class product. As part of the tech team, you will play a lead role in this by designing and building world leading streaming services across web, mobile and TV platforms, working on new feature releases and evolving the next phase of our application framework. With a rapidly expanding company; growth within the team and opportunities to lead engineering initiatives are abundant. We need people who want to help us build a strong engineering culture and a fun, vibrant workplace. You will deliver high quality, robust and testable code adhering to internal engineering procedures, code conventions and development methodologies. Contribute to comprehensive documentation that supports the development and support lifecycles. Work to continually improve software deployment to ensure iterative releases and rapid deployment of updates to our customers across all platforms. Mentoring and supporting other developers with their day-to-day work. Monitor system performance and resolve any issues or failures in staging or production environments. Must have experience with JavaScript (vanilla JS, prototypes, scoping, design patterns, memory profiling). Track record of successful software delivery through all phases of development, including coding standards, code reviews, source control management, build processes, testing, and operations. Working knowledge of object-oriented design, design patterns and extreme programming. Familiar with build automation and continuous integration 3Ability to write unit tests using JavaScript in a common library such as Jasmine. Any experience of the following sills would be pretty handy: Node.js or other programming languages Cross-platform development preferable on smart TV and consoles Development of a high-profile digital video service Test driven development Experience with AWS, Docker, Kubernetes Experience of working in an Agile software development environment. Location is Central London. Please send your CV to us urgently for this contract assignment in Word format along with your salary and availability.
Javascript and Agile Software Developer – Central London The Client Developer will be responsible for the development and delivery of all client side aspects of our product, developing new features and launching new platforms. A successful candidate will have a proven ability in delivering customer facing JavaScript applications, in an Agile software development environment and a passion for building a world class product. As part of the tech team, you will play a lead role in this by designing and building world leading streaming services across web, mobile and TV platforms, working on new feature releases and evolving the next phase of our application framework. With a rapidly expanding company; growth within the team and opportunities to lead engineering initiatives are abundant. We need people who want to help us build a strong engineering culture and a fun, vibrant workplace. You will deliver high quality, robust and testable code adhering to internal engineering procedures, code conventions and development methodologies. Contribute to comprehensive documentation that supports the development and support lifecycles. Work to continually improve software deployment to ensure iterative releases and rapid deployment of updates to our customers across all platforms. Mentoring and supporting other developers with their day-to-day work. Monitor system performance and resolve any issues or failures in staging or production environments. Must have experience with JavaScript (vanilla JS, prototypes, scoping, design patterns, memory profiling). Track record of successful software delivery through all phases of development, including coding standards, code reviews, source control management, build processes, testing, and operations. Working knowledge of object-oriented design, design patterns and extreme programming. Familiar with build automation and continuous integration 3Ability to write unit tests using JavaScript in a common library such as Jasmine. Any experience of the following sills would be pretty handy: Node.js or other programming languages Cross-platform development preferable on smart TV and consoles Development of a high-profile digital video service Test driven development Experience with AWS, Docker, Kubernetes Experience of working in an Agile software development environment. Contract duration will be 6 months. Location is Central London. Please send your CV to us urgently for this contract assignment in Word format along with your daily rate and availability.
