Senior E-Commerce Full Stack Software Engineer Location: Bradford (Hybrid - x2 a week onsite in Central Bradford) We are looking for a highly skilled Senior E-Commerce Full Stack Software Engineer to design, develop, and optimise secure, high-performing B2C websites and shopping apps that deliver exceptional customer experiences and drive business growth. You will work collaboratively with cross-functional teams including CRO and digital analytics analysts, SEO specialists, UX designers, and digital experience owners to build and maintain responsive, scalable solutions that integrate seamlessly with back-end services. Key Responsibilities Develop and maintain conversion rate optimisation (CRO) and personalisation experiments (A/B tests). Implement SEO features and optimise web performance for speed, accessibility, and cross-browser compatibility. Build and maintain secure, high-performance websites and apps using HTML5, CSS, jQuery, ASP.NET, and cross-platform frameworks such as Apache Cordova and Ionic. Ensure compliance with UK regulations including UK-GDPR, PCI-DSS, and security best practices. Participate in Agile ceremonies and contribute technical insights to sprint planning and retrospectives. Stay up to date with emerging e-commerce technologies and industry trends. What We’re Looking For 10 years of software development experience, including at least 3 years in a full stack role. Proven track record in building scalable, secure transactional e-commerce websites. Strong knowledge of HTML5, CSS, JavaScript, and frameworks such as AngularJS and jQuery. Experience with ASP.NET, .NET, and back-end languages like C# or Java. Familiarity with digital marketing technologies (Adobe Launch, Adobe Analytics, Adobe Target) and performance optimisation techniques. Understanding of security best practices against vulnerabilities such as CSRF, XSS, and SQL injection. Desirable: Experience with Agile methodologies and DevOps practices (CI/CD pipelines). Knowledge of digital merchandising and UK retail market e-commerce systems. Why Join Us? Competitive salary and benefits package. Hybrid working for flexibility and work-life balance. Opportunity to work on high-impact projects that shape customer experience and business performance.