Trabajos web developer html and css en Reino Unido

dunnhumby is the global leader in Customer Data Science, empowering businesses everywhere to compete and thrive in the modern data-driven economy. We always put the Customer First. Our mission: to enable businesses to grow and reimagine themselves by becoming advocates and champions for their Customers. With deep heritage and expertise in retail - one of the world's most competitive markets, with a deluge of multi-dimensional data - dunnhumby today enables businesses all over the world, across industries, to be Customer First. dunnhumby employs nearly 2,500 experts in offices throughout Europe, Asia, Africa, and the Americas working for transformative, iconic brands such as Tesco, Coca-Cola, Meijer, Procter & Gamble and Metro. We're looking for a Senior Web Developer to join our Retail Media team at dunnhumby. ou'll play a key role in integrating innovative, scalable, and high-performance web applications that power retail media solutions for some of the world's biggest brands and retailers. As part of a cross-functional team, you'll collaborate with product managers, designers, data scientists, and engineers to deliver seamless digital experiences that help retailers monetise their media assets and drive measurable outcomes for advertisers. What You'll Do As a Senior Web Developer in our Retail Media team, you will: • Support the technology and integration of our adtech functions, ensuring seamless connectivity with key platforms like Google Ad Manager, • Regularly test, maintain, and enhance our web frameworks to ensure performance, reliability, and scalability, • Troubleshoot and resolve technical issues across the stack, from frontend bugs to backend integration challenges, • Collaborate closely with internal product teams and stakeholders to align technical solutions with business goals, • Lead the integration of our systems with third-party ad servers and platforms, particularly Google's adtech ecosystem, • Contribute to the continuous improvement of our development practices, including code reviews, testing, and deployment automation, • Strong experience with core web technologies: HTML, CSS, and JavaScript, • Background in the advertising or adtech space, with a solid understanding of digital media workflows, • Exposure to Google ad platforms, ideally including Google Ad Manager, • Proven ability to engage and collaborate with stakeholders across product, tech, and commercial teams, • Familiarity with modern frontend frameworks (e.g. React) and backend technologies (e.g. Node.js) is a plus, • A proactive mindset with strong problem-solving and communication skills What you can expect from us We won't just meet your expectations. We'll defy them. So you'll enjoy the comprehensive rewards package you'd expect from a leading technology company. But also, a degree of personal flexibility you might not expect. Plus, thoughtful perks, like flexible working hours and your birthday off. You'll also benefit from an investment in cutting-edge technology that reflects our global ambition. But with a nimble, small-business feel that gives you the freedom to play, experiment and learn. And we don't just talk about diversity and inclusion. We live it every day - with thriving networks including dh Gender Equality Network, dh Proud, dh Family, dh One, dh Enabled and dh Thrive as the living proof. We want everyone to have the opportunity to shine and perform at your best throughout our recruitment process. Please let us know how we can make this process work best for you. Our approach to Flexible Working At dunnhumby, we value and respect difference and are committed to building an inclusive culture by creating an environment where you can balance a successful career with your commitments and interests outside of work. We believe that you will do your best at work if you have a work / life balance. Some roles lend themselves to flexible options more than others, so if this is important to you please raise this with your recruiter, as we are open to discussing agile working opportunities during the hiring process. For further information about how we collect and use your personal information please see our Privacy Notice which can be found (here)

Outsystems Contract Developer London Based Rate: £550 P/day negotiable What you'll be doing: Delivering fantastic low-code solutions on enterprise-level client projects. Working closely with the Tech Lead to support the implementation of innovative solutions that solve complex technical and business problems, ensuring that all best practices are being followed. Working within an Agile team following best practice Agile methodology Working with in multi-supplier environment What experience you'll bring: Experience of OutSystems development, in customer facing or professional services roles with excellent written and oral communication skills, having the ability to explain technical components to non-technical users. Experience of working in Agile development teams Experience of working in customer facing environments and working with customers to understand their business and technical requirements, and shaping technical solutions to meet them Excellent problem-solving skills and the ability to independently perform root cause analysis. Autonomy and proactivity Talk and understanding stakeholders on their request and work in an environment with some levels of governance Must have: Web applications expertise using modern web technologies (eg CSS, HTML, HTML5, JavaScript, jQuery). Knowledge in UX design principles and ability to apply them when building applications/solutions. Knowledge in database modelling and SQL programming (eg joins, count, group by, indexes, etc.). Good knowledge of C# and .NET including commonly used code libraries Bsc. in Computer Science or similar field of studies OutSystems Associate Reactive Developer certification UK residency or UK national to support eligibility for security clearances. Working in OutSystems applications that use a micro-services architecture Disclaimer: This vacancy is being advertised by either Advanced Resource Managers Limited, Advanced Resource Managers IT Limited or Advanced Resource Managers Engineering Limited ("ARM"). ARM is a specialist talent acquisition and management consultancy. We provide technical contingency recruitment and a portfolio of more complex resource solutions. Our specialist recruitment divisions cover the entire technical arena, including some of the most economically and strategically important industries in the UK and the world today. We will never send your CV without your permission. Where the role is marked as Outside IR35 in the advertisement this is subject to receipt of a final Status Determination Statement from the end Client and may be subject to change.

Mid-Level C++ Developer (5+ years of experience) Location: Hybrid - 2-3 days onsite in Hounslow Rate: £430 per day (Inside IR35) Duration: 12 months (Extension highly likely) Are you an experienced C++ Developer looking for your next long-term contract? We are seeking a technically strong and versatile Mid-Level C++ Developer to join our client's high-performing team on a travel technology project. Key Responsibilities • Develop and maintain high-performance Back End components using C+ or newer., • Design dynamic, responsive Front End interfaces with AngularJS/Angular 2+., • Support and enhance existing systems with a focus on performance, stability, and maintainability., • Collaborate with cross-functional teams (Product Owners, QA, DevOps, etc.) to deliver new features., • Refactor Legacy code and actively contribute to reducing technical debt., • Write clean, well-documented, scalable, and maintainable code., • Participate in code reviews and support junior developers where appropriate., • Uphold secure coding practices and adhere to development standards., • 5+ years of professional software development experience., • Proficient in C+ or later with strong knowledge of memory management, concurrency, and object-oriented programming., • Solid experience with AngularJS, HTML, CSS, and JavaScript., • Familiarity with REST APIs, JSON, and web service integration., • Experience in maintenance/support roles involving bug fixing and system enhancement., • Strong debugging and full-stack problem-solving skills., • Proficient in using Git and working within Agile frameworks such as Scrum, Kanban, or Sprints., • Bachelor's or Master's degree in Computer Science, Engineering, or a related field., • Industry knowledge in full-stack software development is essential.

HCLTech is a global technology company, home to 219,000+ people across 54 countries, delivering industry-leading capabilities centered on digital, engineering and cloud, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of $13+ billion. UI ReactJS Developer role • Extensive knowledge of React JS, JavaScript, Web 2.0 and solid understanding of Object-Oriented Principles., • Demonstrated hands on experience using Java or JavaScript and experience designing, developing and maintaining complex applications and database experience (SQL Server and/or Oracle)., • A background in creating high quality web-based user interfaces, • An understanding of how to ensure these interfaces are easy to navigate, linkable, responsive and accessible., • Practical experience of test-driven development and constant refactoring in continuous integration environment., • Experience with HTML, CSS, Web Service (REST), Junit (or Selenium)., • Working knowledge of OpenShift/ Kubernetes, Docker & sHelm preferable., • Practical experience with build tools, source code control (preferably Git), and continuous integration.

Senior Full Stack JavaScript Developer Salary: £77,000 - £82,000 pa (depending on experience) plus benefits, perks and healthcare options Location: Hybrid / 2 x days per week - Travel to London Job Type: Permanent Security Clearance: This role is exclusively open to UK sole nationals who either hold or are eligible for Security Clearance (SC). We are on the lookout for a talented and motivated Full Stack JavaScript Developer to join a dynamic Engineering team. If you’re passionate about creating innovative web and mobile applications while ensuring high performance and scalability, this is your opportunity to make an impact! Your Role: • Provide technical leadership and mentorship to a team of developers, guiding them through collaboration, innovation and facilitation to ensure best practices and high-quality code., • Design, develop, and maintain both front-end components of web and mobile applications using React, Angular, TypeScript, Bootstrap 5, HTML, CSS, • Apply Test Driven Development (TDD) practices using tools such as Karma to ensure robust and reliable code., • Leverage AI-augmented development tools like GitHub Copilot to accelerate coding, improve consistency, and reduce boilerplate., • Collaborate with architects and other developers to design robust, scalable, and secure architectures for new projects and enhancements to existing systems., • Continuously improve our teams’ development processes, tools, and techniques to enhance productivity and product quality., • Work closely with clients and internal teams to understand requirements, provide technical guidance, and deliver solutions that exceed expectations. Your skills and experience • Design, develop, and maintain both front-end and back-end components of web and mobile applications using JavaScript, Node.js, and modern frameworks and libraries such as React, Angular, or Vue.js., • Proven experience in full stack JavaScript development, with a strong focus on Node.js and server-side development., • Experience using AI-assisted development tools (e.g. GitHub Copilot) to enhance productivity and code quality., • Experience of at least one leading Node framework (Express.js, Nest.js, Hapi.js), • Expertise in at least one modern front-end framework (Nest.js, Remix.js)., • A track record in a lead or senior developer role, with experience of mentoring and guiding development teams., • Proficiency in HTML5, CSS3, and JavaScript (ES6+). Security Clearance Requirements: • You must be eligible for Security Check (SC) clearance., • Applicants must have resided continuously in the UK for the past 5 years. If you’re ready to take the next step in your career and thrive in a fast-paced, innovative environment, we want to hear from you!

Proven work experience as a Web Developer• In-depth knowledge of web development technologies such as HTML, CSS, JavaScript, JQuery,AJAX, PHP, MySQL, Apache, etc. Hamden Technologies is looking for a highly motivated and experienced Web Developer to join ourteam. The ideal candidate will be respon

We are seeking a highly skilled and experienced Senior / Lead Front-end JavaScript Developer to join our Experience Engineering team. Design, develop, and maintain front-end components of web applications using HTML, CSS & JavaScript. Proficiency in HTML5, CSS3, and JavaScript (ES6+).