Senior UI Engineer I

Headquartered in Irvine, California, Aperture Cloud specializes in developing integrated payment solutions that facilitate electronic payment processing within ERP, CRM, Mobile, and eCommerce applications. Our applications are PCI compliant and fully integrated with major ERP/accounting systems, including QuickBooks, Sage, SAP Business One, Microsoft Dynamics, NetSuite, Epicor, Acumatica, and major online shopping carts, including Magento and WooCommerce. Aperture Cloud offers its employees tremendous learning opportunities, career growth potential, and a dynamic work environment. As a Senior UI Engineer I at Aperture Cloud , you will play a key role in shaping the architecture, quality, and visual polish of our customer-facing applications, web and mobile experiences. You are a front-end specialist with an exceptional eye for detail, a passion for beautiful, intuitive user interfaces, and the ability to bring designs to life with precision and care. You will collaborate closely with UX/UI Designers, Product Managers, and Engineering leaders to deliver high-quality, responsive, and scalable UI solutions that elevate the Aperture Cloud user experience. Recent experience working with .NET is required. A portfolio link is required to be considered for this role. Responsibilities & Expectations Partner closely with UX/UI Designers, Product Owners, and Engineering Managers to deliver polished, mobile-responsive, and web-based experiences with a strong emphasis on usability and visual consistency. Architect, design, develop, and maintain reusable front-end components, UI patterns, and design systems that scale across products. Translate high-fidelity designs into pixel-perfect, accessible, and performant user interfaces. Create and maintain responsive web designs that work seamlessly across modern browsers and devices. Actively participate in code reviews, contributing to high standards for UI quality, maintainability, and performance. Use Git and GitHub pull request workflows effectively in a collaborative engineering environment. Participate in the full development lifecycle, including planning, implementation, testing, release, and deployment. Communicate progress, tradeoffs, and UI decisions clearly with leadership and cross-functional stakeholders. Collaborate with designers to conceptualize, iterate, and finalize modern UI solutions, advocating for best practices in front-end engineering and user experience. Skills & Qualifications 4+ years of experience building production-grade front-end applications with a strong focus on UI quality and user experience. Strong expertise in HTML5, CSS3, modern JavaScript (ES6+), and responsive web design principles. Proven experience developing applications using Blazor (WebAssembly or Server) in a .NET ecosystem. Deep understanding of component-based architecture, reusable UI patterns, and scalable design systems. Experience translating high-fidelity designs (Figma or similar) into pixel-perfect, accessible, and performant interfaces. Strong knowledge of CSS architecture, including modular styling approaches and preprocessors (Sass or similar). Experience integrating front-end applications with RESTful APIs. Familiarity with performance optimization techniques for web applications. Working knowledge of accessibility standards (WCAG) and cross-browser compatibility. Proficiency with Git and collaborative pull request workflows. Strong attention to visual detail and a passion for crafting polished, intuitive user interfaces. Excellent communication skills and ability to collaborate closely with designers and product teams Job Type: Full-time The Company is committed to compliance with all applicable laws providing equal employment opportunities. This commitment applies to all persons involved in Company operations. The Company prohibits unlawful discrimination against any job applicant, employee, or unpaid intern by any employee of the Company, including supervisors and coworkers. Pay discrimination between employees of the opposite sex or between employees of another race or ethnicity performing substantially similar work, as defined by the California Fair Pay Act and federal law, is prohibited. Originally posted on Himalayas