Demo

Senior UX Designer

Sigmaways Inc
San Francisco, CA Contractor
POSTED ON 4/2/2026
AVAILABLE BEFORE 5/26/2026

The Senior UX Designer will partner with the business and engineering teams to prioritize UX activities throughout the software development lifecycle and deliver high-quality experiences. We are looking for someone who has the ability to prioritize the backlog, schedule, and technical constraints while meeting business requirements and usability goals.


Responsibilities :


  • The Senior UX Designer will support all aspects of design and production, focusing specifically on UI engineering.
  • Acts as a user advocate and participates in UX discussions with business partners on topics including sentient design, interaction features, design systems, information architecture, and user research.
  • Assesses data from multiple sources, synthesizes it, and develops strategies for products.
  • Advocates for the end user by influencing decisions to ensure that product, engineering, and design decisions are aligned with user needs and expectations.
  • Collaborates with UX analysts, product/business stakeholders, and engineering teams to prioritize UX activities throughout the software development lifecycle and deliver high-quality experiences.
  • Understands product, client goals, requirements, internal goals, usability, and technical constraints associated with budget and schedule.
  • Supports all aspects of design and production, focusing specifically on UX design and UI component delivery.
  • Facilitates stakeholders through the design process, gathering actionable feedback and iterating at the appropriate level of changes.
  • Provides UI engineering support to development teams in both Agile and waterfall methodologies for responsive interfaces on presentation layer.


Qualifications:


  • Bachelor’s degree in Computer Science, Information Systems, Graphic Design, Human Factors, Cognitive Psychology, and/or equivalent experience.
  • 8 years of relevant technical or business work experience.
  • Creates innovative and appealing designs on a rapid and iterative basis, through sketches, storyboards, user task flows, wireframes, prototypes, and the production of final assets for specific features and assignments.
  • Portfolio that demonstrates sentient design, component-driven design, modern design practices, complex UI patterns and application of UX metrics.
  • Advanced experience with Storybook, HTML/CSS/JS best practices and building accessible component libraries .
  • Intermediate design engineering experience with modern JavaScript and related technologies e.g., AI coding assistants, Angular, React, and GitLab.
  • Demonstrated success at creating reusable, accessible and modular designs that have a significant impact on product strategy and design.
  • 5 years of experience with participating in user experience research using a variety of research methods..
  • 3 years of prototyping experience and familiarity of designer tools such as Figma, and MURAL.
  • Proficiency with one or more usability testing tools or services .
  • Familiar with Agile concepts such as PI planning, retrospectives, sprints, SCRUM, Kanban, and so forth .
  • Component-driven design and supporting enterprise design systems .
  • Expertise in Section 508 and WCAG ,UX certification desirable.

Hourly Wage Estimation for Senior UX Designer in San Francisco, CA
$68.00 to $81.00
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