Sr. UI Developer
About The Position
The Senior UI Developer plays a critical role in shaping the front-end experience of Lumin Digitalâs platform. This position exists to design, develop, and maintain elegant, performant, and accessible user interfaces that elevate digital banking experiences for our credit union and bank partners. Success in this role means delivering high-quality, reusable UI components, collaborating cross-functionally with design, product, and engineering teams, and ensuring consistency and excellence across the entire product ecosystem. This role is ideal for an engineer passionate about crafting visually engaging, intuitive interfaces that make complex systems feel simple.
Requirements
- 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.
Nice To Haves
- Front-end framework certifications (e.g., Angular, React) are a plus but not required.
- Prior experience in fintech, SaaS, or similarly regulated industries preferred.
- Experience contributing to design systems or shared UI libraries a plus.
- 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.
Responsibilities
- Design, develop, and maintain responsive, reusable, and accessible UI components for Luminâs 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 Luminâs 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.
Stand Out From the Crowd
Upload your resume and get instant feedback on how well it matches this job.
What This Job Offers
Job Type
Full-time
Career Level
Mid Level
Number of Employees
251-500 employees
