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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Ux Lead & Cro Strategist (Remote/Flex) - **Company:** Agileengine - **Location:** Madrid, Spain - **Contract:** Permanent contract - **Skills:** A/B Testing, Artificial Intelligence, Google Analytics, Statistical Hypothesis Testing, Mixpanel, Next.js, Software Engineering, Web Content Accessibility Guidelines, Web Applications, Website Wireframe, Modern Ui, ReactJS, Large Language Models, Amplitude Analytics, Figma, Front End Software Development, Optimizely - **Published:** August 8, 2026 - **Apply:** https://www.buscojobs.com.es/senior-ux-lead-cro-strategist-remote-flex-en-madrid-ID-365856400 ## About the Role ABOUT THE ROLEWe are looking for a Senior/Lead UX/UI Specialist to own both design quality and the conversion rate optimization program for a global printing and packaging company's customer-facing digital products. You will design interfaces and flows from wireframe to high-fidelity spec, form test hypotheses from qualitative and quantitative evidence, design and deploy A/B tests using platforms such as VWO or Optimizely, and present findings directly to client stakeholders. The role requires proven ownership of a CRO or experimentation roadmap and strong analytics literacy alongside Figma proficiency.WHAT YOU WILL DO- Design user interfaces and flows for web applications, from wireframe through high-fidelity specifications; - Own the CRO program by identifying friction points, forming hypotheses, and designing experimentation roadmaps aligned with business goals; - Design, specify,and deploy A/B tests, analyze results, and translate findings into product recommendations; - Analyze userbehavior data to identify barriers to adoption and retention; - Collaborate closely with frontend engineers on test implementation and design handoff; - Provide objective and timely reviews of the existing UX strategy and product architecture; - Maintain andevolve design system components and interaction patterns; - Present findings, recommendations, and experiment outcomes directly to client stakeholders.MUST HAVES- 5+ years of experience in product design / UX, with demonstrable ownership of a CRO or experimentation program; - Proven trackrecord forming test hypotheses from qualitative and quantitative evidence; - Hands-on experience with A/B testing platforms; - Strong analyticsliteracy with the ability to interpret funnels, segment data, and evaluate statistical significance; - Proficiency withFigma and modern design/prototyping workflows; - Experience designing for React/Next.Js applications, collaborating with engineers, and producing clear design documentation and handoff specifications; - Excellent English communication skills and the ability to present recommendations to senior stakeholders.NICE TO HAVES- Experience with VWO; - Background in B2B, industrial, or manufacturing-sector products; - Familiarity withweb analytics platforms such as GA4, Amplitude, Mixpanel, or Hotjar; - Experience designing AI-powered or LLM-driven user experiences; - Accessibility (WCAG) expertise.PERKS AND BENEFITS- Professional growth: Mentorship, TechTalks, and personalized growth roadmaps. ## Description AgileEngine is an Inc. **** company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries.We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards.WHY JOIN USIf you're looking for a place to grow, make an impact, and work with people who care, we'd love to meet you!ABOUT THE ROLEWe are looking for a Senior/Lead UX/UI Specialist to own both design quality and the conversion rate optimization program for a global printing and packaging company's customer-facing digital products.You will design interfaces and flows from wireframe to high-fidelity spec, form test hypotheses from qualitative and quantitative evidence, design and deploy A/B tests using platforms such as VWO or Optimizely, and present findings directly to client stakeholders.The role requires proven ownership of a CRO or experimentation roadmap and strong analytics literacy alongside Figma proficiency.WHAT YOU WILL DO- Design user interfaces and flows for web applications, from wireframe through high-fidelity specifications; - Own the CRO program by identifying friction points, forming hypotheses, and designing experimentation roadmaps aligned with business goals; - Design, specify,and deploy A/B tests, analyze results, and translate findings into product recommendations; - Analyze userbehavior data to identify barriers to adoption and retention; - Collaborate closely with frontend engineers on test implementation and design handoff; - Provide objective and timely reviews of the existing UX strategy and product architecture; - Maintain andevolve design system components and interaction patterns; - Present findings, recommendations, and experiment outcomes directly to client stakeholders.MUST HAVES- 5+ years of experience in product design / UX, with demonstrable ownership of a CRO or experimentation program; - Proven trackrecord forming test hypotheses from qualitative and quantitative evidence; - Hands-on experience with A/B testing platforms; - Strong analyticsliteracy with the ability to interpret funnels, segment data, and evaluate statistical significance; - Proficiency withFigma and modern design/prototyping workflows; - Experience designing for React/Next.Js applications, collaborating with engineers, and producing clear design documentation and handoff specifications; - Excellent English communication skills and the ability to present recommendations to senior stakeholders.NICE TO HAVES- Experience with VWO; - Background in B2B, industrial, or manufacturing-sector products; - Familiarity withweb analytics platforms such as GA4, Amplitude, Mixpanel, or Hotjar; - Experience designing AI-powered or LLM-driven user experiences; - Accessibility (WCAG) expertise.PERKS AND BENEFITS- Professional growth: Mentorship, TechTalks, and personalized growth roadmaps.- Competitive compensation: USD-based pay with education, fitness, and team activity budgets.- Exciting projects: Modern solutions with Fortune 500 and top product companies.- Flextime: Flexible schedule with remote and office options.Meet Our Recruitment ProcessEach step helps us understand your skills and overall fit.If it's a match, you'll receive an offer.#J-*****-Ljbffr ## Related Videos - [Watch Tests Go Brrrr! : Getting Started with Cypress in ReactJS](https://www.wearedevelopers.com/videos/282-watch-tests-go-brrrr-getting-started-with-cypress-in-reactjs) - [Boost Productivity with AI: Figma & Playwright MCP Workflows - Aris Markogiannakis](https://www.wearedevelopers.com/videos/1768-boost-productivity-with-ai-figma-playwright-mcp-workflows-aris-markogiannakis) - [GraphQL + Apollo + Next.js: A Lovely Trio](https://www.wearedevelopers.com/videos/311-graphql-apollo-next-js-a-lovely-trio) - [The user in the eye of the Cargo1492 storm](https://www.wearedevelopers.com/videos/96-the-user-in-the-eye-of-the-cargo1492-storm) - [Fireside Chat with Kris Rasmussen, CTO at Figma](https://www.wearedevelopers.com/videos/982-fireside-chat-with-kris-rasmussen-cto-at-figma) - [Designing the Future of Human<>Agent Collaboration](https://www.wearedevelopers.com/videos/1447-designing-the-future-of-human-agent-collaboration) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Dev Digest 133 - Back to Front](https://www.wearedevelopers.com/magazine/474-dev-digest-133-back-to-front) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Dev Digest 113 - Debugging above the cloud](https://www.wearedevelopers.com/magazine/422-dev-digest-113-debugging-above-the-cloud)