Kitestring Technical Services is hiring: Senior UX/UI Designer in San Diego

As a Sr. Digital UX/UI Designer, you are responsible for designing intuitive, engaging, and seamless digital experiences for our client’s consumer-facing platforms across multiple touchpoints. This role combines hands-on design execution with a strong focus on improving user journeys through data-driven insights, iteration, and cross-functional collaboration.

Essential Job Functions

• Lead the creation of intuitive, user‑centered digital experiences for customer‑facing ecommerce journeys and internal operational tools.


• Design user flows, wireframes, and high‑fidelity UI designs.


• Lead and contribute to ecommerce funnel improvements (landing, PDP, cart, checkout, post‑purchase) by helping identify friction points and implementing iterative design enhancements.


• Lead and participate in discovery activities, including stakeholder meetings, competitive research, and basic user research to inform design decisions.


• Collaborate closely with Product Managers, Engineering, and business stakeholders to understand requirements and translate them into thoughtful design solutions.


• Iterate on designs based on feedback from fellow designers, stakeholders, usability testing, and performance data.


• Support A/B testing and experimentation efforts by preparing design variations and documenting hypotheses.


• Contribute and apply established design systems, component libraries, and brand guidelines to ensure consistency across experiences.


• Prepare clear design documentation and specifications for engineering handoff.


• Present work to internal teams with guidance, articulating design decisions and incorporating feedback constructively.


• Manage assigned tasks effectively while meeting deadlines in a fast‑paced environment.

Required Skills and Qualifications

• Degree or certification in Design, Human‑Computer Interaction, or related field, or equivalent practical experience.


• 5+ years of digital design experience (web, ecommerce, SaaS, or similar environments).


• Foundational understanding of UX principles, interaction design, and responsive design.


• Experience creating wireframes and prototypes using modern design tools (Figma preferred).


• Familiarity with the end‑to‑end product design process, with hands‑on experience contributing to shipped features.


• Comfort working collaboratively within cross‑functional teams.


• Understanding of conversion rate optimization and data‑informed design practices.


• Working knowledge of accessibility and usability best practices.


• Exposure to design systems, style guides, or pattern libraries.

Nice to Have

• Experience supporting ecommerce projects or internal tools.


• Familiarity with analytics tools and user behavior insights.


• Basic understanding of front‑end development concepts (HTML/CSS).


• Experience with AI prototyping and usability testing methods.