Lumin Digital · 1 month ago
Sr. UI Developer
United States
Full-time
Remote
Senior Level
$135K/yr - $170K/yr
5+ years expLumin Digital is a trailblazer in digital banking solutions, driven by a unique approach to technology, service, and people. The Senior UI Developer plays a critical role in shaping the front-end experience of Lumin Digital’s platform by designing, developing, and maintaining user interfaces that enhance digital banking experiences for credit union and bank partners.
Financial ServicesFinTechSaaSSoftware
Responsibilities
Design, develop, and maintain responsive, reusable, and accessible UI components for Lumin’s digital banking platform
Translate UI/UX design wireframes and prototypes into high-quality code that aligns with design intent and technical feasibility
Collaborate closely with Product Managers, UX Designers, and back-end engineers to ensure seamless integration and an exceptional user experience
Optimize front-end performance through efficient rendering, code splitting, and other best practices
Participate in code reviews, design reviews, and agile ceremonies to drive continuous improvement and maintain high standards of quality
Contribute to and help evolve Lumin’s design system, ensuring consistency, scalability, and brand cohesion across products
Troubleshoot and resolve UI-related issues across browsers and devices, ensuring reliability and accessibility (WCAG/ADA compliance)
Stay current with front-end trends, frameworks, and emerging technologies to continuously enhance product usability and developer efficiency
Provide mentorship and technical guidance to other front-end developers as needed
Perform other duties as assigned
Qualification
Required
5+ years of professional front-end or UI development experience, with a strong portfolio of production-level work
Proven expertise with modern JavaScript frameworks such as Angular, React, or Vue
Experience working with RESTful APIs and front-end build tools (Webpack, npm, etc.)
Strong proficiency in TypeScript, JavaScript (ES6+), HTML5, and CSS3 (including preprocessors such as SASS or LESS)
Deep understanding of responsive and accessible design principles (WCAG, ADA)
Ability to translate complex design specifications into pixel-perfect, performant implementations
Experience with cross-browser compatibility and front-end testing tools
Strong collaboration skills with the ability to communicate effectively across design, product, and engineering teams
Attention to detail, accountability for deliverables, and a commitment to clean, maintainable code
Preferred
Bachelor's degree in Computer Science, Software Engineering, preferred or a related field, or equivalent combination of education and experience
Prior experience in fintech, SaaS, or similarly regulated industries preferred
Experience contributing to design systems or shared UI libraries a plus
Front-end framework certifications (e.g., Angular, React) are a plus but not required
Familiarity with UI performance profiling and optimization techniques
Experience with UX principles and usability testing collaboration
Knowledge of state management libraries (e.g., NgRx, Redux, or Vuex)
Background in CI/CD processes and modern DevOps workflows
Passion for creating exceptional digital experiences in the fintech space
Company
Lumin Digital
Lumin Digital provides cloud-native digital banking solutions, helping financial institutions enhance user experience and engagement.
201-500 employees
Funding
Current Stage
Growth StageTotal Funding
$260M2026-01-02Undisclosed· $25M
2025-03-26Undisclosed· $75M
2024-12-02Private Equity· $160M
Leadership Team
Jeff Chambers
Founder & CEO
Lisa Sutton
Chief Talent Officer
Recent News
2025-12-16
Company data provided by crunchbase