Senior UI/UX Designer C2C jobs Onsite || Contract

Title: Senior UI/UX Designer

Duration: 6+ Months of Contract with Possible Extension

Location: Waltham, MA – Onsite

Note : Need to have a minimum 12+ Years of experience and there should be a portfolio must.

 

 

 

Roles and Responsibilities:

 

• Execute high-quality UI design across multiple active web and mobile projects, working within and contributing incremental enhancements to an established design system
• Partner with design leads to translate strategic direction into polished, production-ready components, screens, and prototypes.
• Build on existing component libraries — contributing new patterns that align with established conventions
• Create wireframes and prototypes at appropriate fidelity levels to communicate design intent to developers and stakeholders
• Apply UX fundamentals (user flows, IA, usability) to inform UI decisions
• Manage concurrent workstreams, surface blockers early and maintain steady output
• Participate in design reviews, incorporate feedback and iterate efficiently
• Support handoff and design QA, ensure developer alignment with final specs

 

Skills & Experience

• Demonstrated senior-level execution in production environments. Portfolio should show visual craft, as well as fluency with systems and component-level thinking.
• Expert-level Figma skills: components, variants, auto layout, prototyping, and working within a mature design system
• Experience designing for both adaptive web and native mobile
• Familiarity with accessibility standards (WCAG 2.x)
• Self-directed and organized, able to maintain momentum across multiple workstreams
• Communicates clearly and proactively; responsive to feedback and shifting priorities

 

Portfolio Requirements:

 

·         Portfolio work should demonstrate senior-level UI execution within a structured design environment. Specifically, we want to see:

 

Design system contribution

·         Examples of extending or building upon an existing component library: new variants, pattern additions, or documentation.

 

High-fidelity UI screens

·         Polished, production work across web and/or mobile. We're evaluating visual craft, typographic and spacing decisions, and consistency across screens, not just wireframes or flows.

 

Prototypes

·         At least one interactive prototype demonstrating transitions, states, or interaction logic relevant to the project context.

 

Iteration examples

·         Work showing how you responded to feedback or constraints from a lead or stakeholder. We want evidence of collaborative execution, not just independent creative direction.