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Experienced UI Designer (Contractor Role - Remote) at Stack Builders. Are you passionate about crafting intuitive, engaging user interfaces that shape the future of software? Stack Builders is seeking an experienced UI Designer to join our team on a remote, contract basis.. You will play a key role in shaping the user experience of one of the world’s largest communication platforms by leading iterative design processes—from early research and ideation to high-fidelity execution. You’ll collaborate cross-functionally to deliver innovative, responsive, and scalable digital solutions.. 🏢 About Stack Builders. Stack Builders is a leading international software consultancy partnering with clients in the US, UK, and Australia. We foster a diverse, inclusive, and learning-focused environment with a global team of highly skilled professionals.. For this specific job post, we can only accept candidates who reside in the US, Canada, or Colombia. 🛠 What You’ll Do. . Create a wide variety of deliverables for an enterprise website, including graphics, illustrations, page layouts, animations, and other design artifacts as needed. . Work closely with UX, Content, and Engineering teams to turn design ideas and concepts into user-facing graphics and web pages. . Collaborate with stakeholders to visually communicate the benefits of our products and how they work; may include complex diagrams. . Work with the existing design system and contribute to advancing and refining it. . Translate new branding into a cohesive sitewide experience, incorporating new look and feel into web design layouts, components, and elements. . Implement responsive designs that improve the user's experience on desktop and mobile devices. . Participate in weekly design review meetings. . Maintain current understanding of advances in design, technology, and trends, knowledge of design software capabilities and limitations. . Implement designs optimized for all screen sizes, adhering to the current accessibility standards (AA, WCAG 2.1). . . 🧠 Key Skills & Requirements. Design & Technical Proficiency:. . Strong portfolio showcasing responsive web and mobile UI work.. . 3+ years in UI design with proven experience across digital products and platforms.. . Mastery of design tools, including Figma and Adobe XD, as well as graphic and vector editing software like Photoshop and Illustrator.. . Understanding of basic accessibility requirements (AA, WCAG 2.1). . Understand basic HTML markup language. . Experience with a design system. . Experience creating illustrations. . Familiarity with AEM. . Experience with Lottie, and creating animations is a big plus. . Process & Communication:. . Ability to articulate and defend design decisions to technical and non-technical audiences.. . Excellent collaboration and interpersonal skills across multicultural teams.. . . Agile & Research:. Experience working in Agile environments.. Knowledge of user research methodologies, personas, and design validation techniques.. 🌎 Eligibility & Language. . Must reside in the United States, Colombia, or Canada.. . Authorized to work as an independent contractor.. . Fluent in English (C1/C2 level).. . . Company Location: United States.