UI Designer

Slack; Lancaster (CA); On-site; USD 94,000 - 124,000; Full time

Job summary

Slack is hiring a UI Designer in Lancaster, CA. The role combines hands-on UI work with building scalable design systems and rigorous prototyping. You will collaborate with marketing, product, and editorial teams to shape experiences and mentor the next designer toward ownership.

Expect to grow a documented heuristic toolkit, craft precise specs, and deliver high-energy product walkthroughs. Slack emphasizes collaboration over heroics and believes in team success.

Qualifications

• 7+ years navigating creative politics and team dynamics.
• 5+ years in a UI Designer role with proven collaboration.
• Experience prototyping and evolving design systems.

Responsibilities

• Collaborate with marketing, product, and editorial teams in Lancaster.
• Grow a Heuristic Evaluation toolkit into a documented system.
• Guide product walkthroughs to land key moments effectively.
• Set typographic rhythm to unite a 3D Modeling library.
• Hand engineer specs to match the mock precisely.
• Leave a documented trail for future designers.

Skills

UI Prototyping

Atomic Design

Cross-functional collaboration

Effective communication

UI Design

Documentation

Tools

Heuristic Evaluation

Job description

Type that breathes, layouts that lead the eye, color that means something: if that sentence made you nod, read on about the UI Designer opening at Slack. We pair a $94,000 - $124,000 salary with real responsibility, so the UI Designer you become here grows faster than the title suggests.

Key Responsibilities

• Collaborate with marketing, product, and editorial teams based in Lancaster
• Grow a scrappy Heuristic Evaluation toolkit into a documented system the next hire inherits
• Pace a product walkthrough so the high-energy payoff lands at the right second
• Set the typographic rhythm that ties a sprawling 3D Modeling library together
• Hand engineering specs tight enough that the build matches the mock
• Leave a documented trail so the next creative inherits judgment, not just files

What You'll Bring

• Prototyping fundamentals plus the Atomic Design polish clients notice
• The kind of curiosity that reads the docs before asking
• A communicator who writes the meeting recap nobody asked for but everyone reads
• A collaborative mindset and genuine enthusiasm for teamwork
• 7+ years navigating the politics that creative work attracts
• Roughly 5+ years operating in a similar UI Designer position

Since day one, Slack has been on a forever-learning mission to reshape creative from its base in Lancaster, CA. Collaboration over heroics is our default, and we'd rather win as a group than burn anyone out.

Here you earn $94,000 - $124,000 while a dedicated mentor helps you grow from senior into ownership, all wrapped in benefits worth keeping.

As of this visit, Slack is actively reviewing for the UI Designer role.