User Interface Developer Contract Jobs in Miami, FL

About Us

At FormativGroup, we partner with organizations to design, build, and modernize enterprise technology solutions that drive meaningful business outcomes. Our teams work across cloud, data, digital experience, and software engineering, helping clients deliver secure, scalable, and user-centric applications.

About the Role

The Senior Front-End Engineer role is an opportunity to build modern, responsive web applications that deliver exceptional user experiences for enterprise customers. You'll collaborate with designers, product leaders, and backend engineers to transform ideas into intuitive, scalable interfaces while influencing both technical direction and user experience. This position is ideal for someone who enjoys owning the front-end architecture, mentoring teammates, and delivering polished applications that perform at scale.

What You'll Do

• Design and develop modern, responsive web applications using React and contemporary front-end development practices.
• Partner closely with UX designers, product managers, and backend engineers to translate business requirements into intuitive user interfaces.
• Convert wireframes, prototypes, and visual concepts into clean, maintainable, production-ready code.
• Build reusable UI components and scalable design patterns that promote consistency across applications.
• Champion performance optimization techniques to ensure fast, responsive, and reliable user experiences.
• Create interfaces that are accessible, responsive, and compatible across modern browsers and devices.
• Participate throughout the full front-end development lifecycle, from solution design through deployment and ongoing enhancements.
• Conduct peer code reviews, share technical knowledge, and mentor junior engineers on development standards and best practices.
• Promote clean architecture, automated testing, maintainable code, and continuous improvement within the engineering team.
• Collaborate in Agile ceremonies and contribute to technical planning, estimation, and solution design.

What You'll Bring

• 8+ years of professional experience developing enterprise front-end applications.
• 3+ yrs advanced expertise with React.js, including functional components, Hooks, Context API, and modern state management approaches such as Redux/Zustand (State Mgt).
• 2–3+ years of hands-on involvement with UI/UX design, user-centered design principles, or close collaboration with design teams.
• Strong proficiency with JavaScript (ES6+), HTML5, CSS3, responsive layouts, and modern browser capabilities.
• Experience developing responsive interfaces using CSS frameworks such as Tailwind CSS, Bootstrap, or Material UI.
• Solid understanding of component-driven architecture, reusable design systems, and scalable front-end application design.
• Experience creating or working from wireframes, prototypes, mockups, and interactive designs using tools such as Figma, Adobe XD, or Sketch.
• Strong knowledge of UI design fundamentals, including typography, spacing, color theory, layout, and usability.
• Experience optimizing front-end performance through techniques such as lazy loading, code splitting, rendering optimization, and efficient state management.
• Proficiency with Git, collaborative version control workflows, and modern software development practices.
• Strong understanding of software quality practices, including code reviews, debugging, testing, and maintainable application architecture.
• Excellent communication skills with the ability to collaborate effectively across engineering, product, and design teams.

Nice to Have

• Experience with Next.js and server-side rendering.
• Working knowledge of TypeScript.
• Familiarity with WCAG accessibility standards and inclusive design practices.
• Experience with automated testing frameworks such as Jest and React Testing Library.
• Experience working within Agile/Scrum delivery environments.
• Previous experience mentoring developers or serving as a technical lead on front-end initiatives.

Location:

• This is a hybrid role - 3 days on site - 2 days remote - near Fort Lauderdale, FL
• Applicants must be authorized to work for ANY employer in the U.S. We are unable to sponsor or take over sponsorship of an employment visa currently.
• To be considered for this position, candidates must reside in one of the following U.S. states: FL.
• Candidates residing outside these states are not eligible for consideration currently.