> Markdown version of [/jobs/ext/4642238-senior-web-engineer-outside-ir35](https://www.wearedevelopers.com/jobs/ext/4642238-senior-web-engineer-outside-ir35). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Web Engineer Outside IR35 - **Company:** Interact Consulting Limited - **Location:** London, United Kingdom (Remote available) - **Experience:** Expert - **Salary:** £169,000 - **Contract:** Temporary to permanent - **Skills:** JavaScript (Programming Language), Application Programming Interfaces (APIs), Data Analysis, Customer Data Management, Data Governance, Google Tag Manager, ReactJS, Enterprise Integration, Data Management, Front End Software Development - **Published:** November 9, 2026 - **Apply:** https://www.reed.co.uk/jobs/senior-web-engineer-outside-ir35/57545606 ## About the Role * Senior-level experience in web/frontend engineering within enterprise or ecommerce environments * Enterprise level React and JavaScript skills * Proven experience with platform integrations, analytics, tagging and third-party services * Deep understanding of data governance, GDPR, PECR and consent management * Experience with analytics, optimisation, experimentation or customer-data platforms * Commercial exposure to Google Tag Manager within web and mobile solutions * Strong communication skills and ability to work autonomously in a remote, enterprise environment ## Description Location: Fully remote, UK Duration: 6-12 months, with possible extension Rate: £650 per day Engagement: Outside IR35 Start: ASAP We are looking for an experienced Senior Web Engineer to build out from scratch an enterprise-level ecommerce platform mechanism, focusing on platform integration, analytics, consent management and digital optimisation. You will work independently with product, engineering, data and privacy stakeholders to deliver high-quality frontend solutions and improve how customer data, tracking and consent are managed across the digital estate. What you'll do * Build and integrate frontend functionality using React and modern JavaScript * Lead integrations across enterprise ecommerce platforms, third-party tools, APIs and marketing technologies * Implement robust data-governance practices across analytics and tracking solutions * Support GDPR and PECR compliance, including consent management, cookie governance and privacy-conscious measurement * Build and optimise consent-management mechanisms, analytics implementations and tag governance * Support experimentation, CRO, personalisation and performance-improvement initiatives * Work closely with stakeholders to define technical approaches, document solutions and transfer knowledge