Principal UI Developer

About the role

Bamboohr is seeking a Principal UI Developer to take ownership of the user interface layer for their customer engagement and experience management platform. In this senior individual contributor role, you will define the technical vision for frontend development and guide the team toward building intuitive, performant, and accessible web applications. You will partner with product managers, interaction designers, and backend engineers to translate business requirements into polished, responsive user experiences. The position requires someone who can balance strategic technical leadership with hands-on implementation of complex interface features.

Key facts

What you'll do

• Architect and construct reusable UI component systems that form the foundation of the customer engagement platform across all Bamboohr products.
• Establish and enforce frontend coding standards, design patterns, and best practices that the entire engineering team follows consistently.
• Work alongside UX designers to convert wireframes, prototypes, and design specifications into fully functional and visually accurate interface implementations.
• Provide technical mentorship to junior and mid-level developers through structured code reviews, collaborative debugging sessions, and guided skill development.
• Profile and optimize rendering performance by identifying bottlenecks in the UI pipeline, reducing JavaScript bundle sizes, and improving initial load metrics.
• Build and maintain a centralized component library and design system that ensures visual and behavioral consistency across every product surface.
• Develop thorough automated test suites including unit tests, integration tests, and end-to-end tests to safeguard interface correctness and prevent regressions.
• Contribute to sprint ceremonies, technical design reviews, and architectural decision-making processes with cross-functional product and engineering teams.
• Research, evaluate, and integrate third-party UI utilities and tools that improve developer productivity and enhance the end-user experience.
• Champion web accessibility initiatives to ensure all interfaces conform to WCAG guidelines and remain usable for people with diverse abilities.

Requirements

• Extensive hands-on experience with core frontend technologies including HTML, CSS, and JavaScript accumulated over many years of professional practice.
• Deep proficiency in at least one modern component-based frontend framework such as React, Angular, or Vue.js in a production environment.
• Proven track record of making foundational UI technical decisions and shaping the frontend architecture direction within a product-driven organization.
• Strong grasp of responsive design methodologies, CSS preprocessing, and modern build tooling such as Webpack, Vite, or comparable systems.
• Working knowledge of version control workflows using Git, including branching strategies, conflict resolution, and collaborative development practices.
• A bachelor's degree in Computer Science, Software Engineering, or a closely related discipline, or demonstrated equivalent experience through work history.
• Demonstrated success in delivering production-quality, visually refined user interfaces under tight timelines in a collaborative team setting.
• Outstanding written and verbal communication abilities with the capacity to explain technical concepts clearly to both engineers and business stakeholders.

Nice to have

• Hands-on experience with TypeScript and static type enforcement in large, complex frontend codebases with multiple contributors.
• Familiarity with CSS-in-JS libraries, styled components, or CSS modules as approaches for scoping and managing interface styles.
• Exposure to server-side rendering frameworks such as Next.js or Nuxt.js and an understanding of their respective advantages and limitations.
• Practical experience with design collaboration tools like Figma or Sketch and the ability to work constructively with design teams.

Skills & tools

• HTML5 and CSS3 with expertise in layout systems including flexbox, CSS grid, and modern responsive design techniques.
• JavaScript ES6 and later with a thorough understanding of asynchronous patterns, closures, prototypal inheritance, and module systems.
• React or a comparable component-based framework with demonstrated experience in managing application state and component lifecycles.
• Build and asset bundling tools such as Webpack, Vite, or Rollup used for optimizing and packaging production frontend code.
• Testing frameworks and utilities including Jest, React Testing Library, or Cypress for validating interface behavior and reliability.
• Design system principles and component library management with an emphasis on reusability, maintainability, and cross-team consistency.

Practical notes

• This is a full-time position with a conventional business schedule, though the team may offer flexible working hours based on mutual agreement.
• The specific work arrangement, whether on-site or remote, will be clarified during the hiring process as the location is currently undetermined.
• Bamboohr provides a competitive total rewards package that includes health and wellness benefits, retirement savings contributions, and ongoing learning opportunities.
• The hiring process typically includes technical coding assessments, system design conversations, and cultural alignment discussions with the engineering leadership team.