Mark Slater
Available for new roles

Hi, I'm Mark. A senior product designer working on products that ship.

I design end-to-end SaaS product experiences through UX, UI and design systems - leveraging AI to accelerate and improve design workflows.

Ex-Paddle 7+ years SaaS experience Start-up, scale-up + more
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Selected Work

How I Work

Start with the problem

Before any wireframe, I get rigorous about the actual problem. Stakeholder interviews, user sessions, data review — until I can state the problem in one clear sentence that everyone agrees on.

Design with — not for

Co-design sessions with engineers, PMs, and real users. The best solutions are rarely designed alone. I facilitate structured ideation to get the whole team's thinking on the table fast.

AI-augmented workflow

I've adopted an AI-first approach across research, ideation and prototyping. I use Claude as a thinking partner and Claude Code to build working concepts — compressing timelines without cutting corners.

Test early, test often

Prototyping is changing and fast, I would now try to build a working concept in Claude but i'm equally happy to use designs created in Figma.

Ship and measure

Design doesn't end at handoff. I stay close to engineering through build, making sure I QA along the way and the build matches the design. I bring engineers in the process early so there are no surprises during this stage.

Design + AI

Over the past six months, I’ve integrated AI deeply into my workflow starting as a design assistant in my day-to-day work and evolving into building and experimenting directly in code.

AI in my workflow

I use AI tools across research, synthesis, copy and early concept exploration. Not to replace thinking but to compress the distance between a messy insight and a testable concept.

Filling in the gaps

I leverage AI to quickly fill knowledge gaps, test ideas, and pressure-test my work by reviewing it from multiple persona perspectives. This approach can vary based on the project and doesn't substitute speaking with customers.

Human oversight

The highest leverage design problem right now is building systems that keep humans genuinely in control while AI does the heavy lifting. I aim to curate and improve my work using AI whilst staying in control.

Side explorations

I run personal experiments in Claude Code building sites, dashboards and tools from scratch with the aim to learn more about whats possible whilst improving my working AI knowledge.

By the numbers

£1B

Paddle unicorn status

Part of a special time in the Paddle team

48%

Year-on-year

Revenue growth during my time at Paddle

5

Industries

From start ups and scale ups to enterprise

15+

Years of experience

Designing digital product experiences

About

I like good challenges, a good laugh & good people.

I have over 15 years of experience designing digital products, including more than 7 years in SaaS. My work focuses on creating clear, intuitive experiences across complex systems, spanning product interfaces, dashboards, websites, and brand-led digital work. I’ve worked across logistics tech, fintech, legal, telco and AI cybersecurity.

I’ve been integrating AI more deeply into my design process using it to explore ideas faster, challenge assumptions, and improve decision-making throughout the lifecycle.

Outside of work, I’m a dad to two amazing girls and husband to my wife, Lianne. When I’m not designing, you’ll usually find me travelling around the North West, supporting my daughters at netball and enjoying time with family.

Mark Slater

Let's work together.

Open to senior individual contributor roles, contract engagements, and conversations about interesting problems.

Send me a message
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