UI Designer

About Semarchy

Semarchy is the modern data management company. The Semarchy Data Platform (SDP) — our AI-driven MDM and governance platform built for DataOps — ensures the rapid delivery of trusted, governed data products at scale, so businesses can easily find, understand, and consume the data they need. With a proven record of customer success, Semarchy helps customers meet the growth in demand for accurate, trusted data and drive the success of data-focused initiatives like AI, Customer 360, and more.

Founded in 2011, Semarchy has an international presence spanning the United States, the United Kingdom, France, India and Mauritius.

Our platform serves technical and business users working with complex data models, workflows, and governance constraints—clarity and usability are non-negotiable.

About the Role

Semarchy is seeking a
Product UI Designer
, not a marketing or brand design role. You should have a passion for crafting professional, elegant, and intuitive interfaces that enable data users to work smarter and faster.

Reporting to the
Product Success and UX team
, this role will help shape the visual and interaction design of our data management platform. You'll have significant autonomy over UI decisions, with responsibility to justify and validate them through collaboration and feedback.

You'll spend most of your time designing complex application interfaces, workflows, and reusable components for data modeling, stewardship, and governance. The work involves dense, information-rich screens where hierarchy, structure, and clarity matter more than visual flair. Your users range from business users to highly technical data professionals.

To do this you will collaborate closely with
product managers, UX designers, engineers, and customer experience teams
to translate complex data processes into clear, modern, and user-friendly interfaces. We value pragmatic design decisions, strong opinions backed by reasoning, and close collaboration with engineering.

The impact of this role will be the creation of Semarchy's
next-generation UI initiatives
that evolve our
Material Design-based system
—ensuring design consistency, accessibility, and scalability across all product surfaces. Your work will directly influence how customers trust, govern, and operationalize their data at scale.

Must Have

• Equivalent professional experience designing production SaaS applications
• Strong portfolio demonstrating complex UI systems, data visualization, and component-based work. Your portfolio must include shipped product work and explain design decisions, trade-offs, and constraints.
• Proficiency with product design tools (
  Figma
  preferred).
• Familiarity with responsive frameworks, Material Design, and component libraries.
• Understanding of
  front-end technologies (HTML/CSS, React)
  and their implications for design feasibility.
• Excellent collaboration and communication skills within cross-functional teams.
• Strong attention to visual detail, layout, and user interaction
• Fluency in French and English.

Nice to Have

• Experience in
  B2B SaaS
  or
  enterprise data management
  .
• Experience creating or maintaining
  design systems
  .
• Comfort designing data-dense interfaces and complex workflows.
• Familiarity with
  accessibility standards (WCAG)
  and design for localization.
• Knowledge of
  user testing methodologies
  and analytics-informed design iteration.

What You'll Do

• Design clear, scalable application interfaces for multiple personas who use the Semarchy Data Platform, from business users to technical data professionals.
• Work closely with product and UX managers, and customer-facing teams, to translate real customer problems into user flows, wireframes, and high-fidelity mockups and interactive prototypes.
• Own UI quality across the product, from concept through implementation and iteration.
• Be the primary UI owner and a core contributor to the
  Semarchy Design System
  , evolving components and patterns in collaboration with UX and engineering.
• Partner with front-end engineers to ensure seamless translation of design into production, supporting design QA and pixel-perfect execution.
• Conduct usability reviews and iterate on feedback to continuously improve user experience.
• Advocate for
  accessibility
  and
  responsive design
  , ensuring the platform meets WCAG standards and works across common enterprise screen sizes.
• Contribute to product vision through creative exploration and innovation aligned with the Semarchy brand and Material Design standards.

Benefits and Culture

• Great flexibility - work from home or from our Lyon office, you also have the possibility to work from abroad 2 weeks / year
• Competitive salary
• Great health insurance, free for your family members
• Personal-growth support: on-line courses, conferences, books… training is key at Semarchy: you will attend training classes on a regular basis
• Work-life balance: we are very attentive to our teams' well-being and insist on making sure you have a good balance between your personal and professional life; Semarchy has a specific Parenthood Charter