[This is not a paid position, this is in return for equity share of the company leading to a salaried role once we complete our funding round] Job Title: Senior Full-Stack Developer / Technical Lead Location: Remote (UK/EU Time Zone Preferred) Company: AdTecher (Key Takeaway Ltd) About Us AdTecher is building the future of eCommerce advertising. Our platform uses AI to help online merchants manage and optimise their ad campaigns across platforms like Google and Shopify. We are an early-stage startup backed by leading AI incubators and AWS Build Partners, with an ambitious roadmap to revolutionise marketing automation for eCommerce. The Role We are looking for a highly skilled and hands-on Senior Full-Stack Developer with experience in eCommerce platforms to lead the development of our core product. You will work closely with the founder and our development team to design, build, and scale a robust AI-driven platform for eCommerce merchants. This is an opportunity to take ownership of key technical decisions, architect scalable solutions, and lead a small team of developers. As we grow, there is potential for this role to expand into a more strategic technical leadership position. Responsibilities • Lead the design and development of our core web app and APIs for Shopify integration • Oversee scalable architecture for AI-powered marketing and data analytics tools • Collaborate with junior developers, guiding code quality, best practices, and delivery timelines • Implement third-party integrations (Google Ads, Shopify CLI, and other eCommerce APIs) • Optimise performance, reliability, and security across all services • Contribute to strategic technical planning as the product and team scale Requirements • Strong experience in full-stack development (Node.js, React, or similar modern stack) • Experience building apps for eCommerce platforms (Shopify experience highly preferred) • Solid understanding of cloud infrastructure (AWS preferred) and API integrations • Hands-on experience with databases, security, and scalable architecture • Comfortable in a startup environment, balancing speed with quality • Excellent problem-solving skills and ability to lead small technical teams Nice to Have • Experience with AI integrations or data-driven products • Familiarity with marketing automation or analytics tools • DevOps experience for deployment and CI/CD Why Join Us • Early impact in a fast-growing AI eCommerce startup • Remote-first and flexible working culture • Opportunity to influence the product and technology direction from the ground up • Competitive compensation with potential for equity for the right candidate