Senior UI Developer

Company Overview

Milestone Technologies is a global IT managed services firm that partners with organizations to scale their technology, infrastructure and services to drive specific business outcomes such as digital transformation, innovation, and operational agility. Milestone is focused on building an employee-first, performance-based culture and for over 25 years, we have a demonstrated history of supporting category-defining enterprise clients that are growing ahead of the market. The company specializes in providing solutions across Application Services and Consulting, Digital Product Engineering, Digital Workplace Services, Private Cloud Services, AI/Automation, and ServiceNow. Milestone culture is built to provide a collaborative, inclusive environment that supports employees and empowers them to reach their full potential.

Our seasoned professionals deliver services based on Milestone's best practices and service delivery framework. By leveraging our vast knowledge base to execute initiatives, we deliver both short-term and long-term value to our clients and apply continuous service improvement to deliver transformational benefits to IT. With Intelligent Automation, Milestone helps businesses further accelerate their IT transformation. The result is a sharper focus on business objectives and a dramatic improvement in employee productivity. Through our key technology partnerships and our people-first approach, Milestone continues to deliver industry-leading innovation to our clients. With more than 3,000 employees serving over 200 companies worldwide, we are following our mission of revolutionizing the way IT is deployed.

Job Overview

Employment Type:

Full-time / Contract

Job Summary

We are seeking a Senior UI Developer with strong expertise in building modern, scalable, and high-performance user interfaces. The ideal candidate will translate UX designs into clean, efficient code, contribute to UI architecture decisions, and ensure a seamless and accessible user experience across devices and browsers.

Key Responsibilities

• Develop responsive and interactive user interfaces using HTML, CSS, JavaScript
• Build reusable UI components using modern frameworks such as React / Angular / Vue
• Collaborate closely with UX designers, backend developers, and product owners
• Ensure cross-browser compatibility, responsiveness, and accessibility (WCAG standards)
• Optimize applications for maximum speed and scalability
• Lead UI-related technical discussions and contribute to architectural decisions
• Review code, enforce UI best practices, and mentor junior developers
• Troubleshoot UI issues across environments and devices
• Participate in Agile ceremonies (stand-ups, sprint planning, reviews)

Required Skills & Qualifications

• Strong proficiency in HTML5, CSS3, JavaScript (ES6+)
• Hands-on experience with React / Angular / Vue (at least one framework required)
• Experience with CSS preprocessors (SASS / LESS) and modern layout techniques (Flexbox, Grid)
• Familiarity with REST APIs and JSON-based data handling
• Experience with Git and version control workflows
• Strong understanding of responsive design and mobile-first development
• Ability to work independently and take ownership of UI deliverables
• Excellent communication and problem-solving skills

Preferred / Nice-to-Have Skills

• Experience with TypeScript
• Knowledge of state management libraries (Redux, NgRx, Zustand, etc.)
• Experience with UI performance optimization
• Familiarity with design systems and component libraries
• Exposure to CI/CD pipelines and DevOps workflows
• Experience working on enterprise or SaaS applications

Compensation

Estimated Pay Range:

Exact compensation and offers of employment are dependent on circumstances of each case and will be determined based on job-related knowledge, skills, experience, licenses or certifications, and location.

Our Commitment to Diversity & Inclusion

At Milestone we strive to create a workplace that reflects the communities we serve and work with, where we all feel empowered to bring our full, authentic selves to work. We know creating a diverse and inclusive culture that champions equity and belonging is not only the right thing to do for our employees but is also critical to our continued success.

Milestone Technologies provides equal employment opportunity for all applicants and employees. All qualified applicants will receive consideration for employment and will not be discriminated against on the basis of race, color, religion, gender, gender identity, marital status, age, disability, veteran status, sexual orientation, national origin, or any other category protected by applicable federal and state law, or local ordinance. Milestone also makes reasonable accommodations for disabled applicants and employees.

We welcome the unique background, culture, experiences, knowledge, innovation, self-expression and perspectives you can bring to our global community. Our recruitment team is looking forward to meeting you.