Senior UI/UX Designer (f/m/x) - Product & Experience - #2241202

Location: Hybrid – Cologne (Rheinauhafen) - 3 days week in the office, 2 days remote (Tue and Thu)

Team: Product • Reports to the CEO • Partners with Engineering team

Please share a single link (Figma, PDF, or live URL) to one project that best illustrates your end-to-end product-design process for a B2B or SaaS interface

Shape a product that keeps our digital world awake

We’re on a mission to make downtime invisible. Thousands of DevOps and IT teams - from scale-ups to enterprises - use our incident-management platform 24/7 to react faster and communicate outages clearly.

As our first dedicated product designer, you’ll own the end-to-end user experience across web and mobile, turning complex, high-stakes workflows into delightfully simple interactions.

Discover & define

• Talk to users, dig into metrics and run usability tests to uncover real pains


• Frame scenarios and success metrics that matter (MTTR, alert fatigue, NPS)

Design & develop

• Craft low- to high-fidelity wireframes and interactive prototypes in your preferred tool


• Evolve and govern ilert’s cross-platform design system (Web + Mobile)


• Balance clarity and density in data-rich dashboards and timeline views

Deliver & iterate

• Hand off pixel-perfect specs and pair with engineers in GitHub & Storybook


• Validate releases with A/B tests and continuous user feedback loops


• Champion accessibility (WCAG 2.1 AA) and performance best practices

• 3+ years designing production SaaS interfaces end-to-end


• Portfolio that proves user-centric thinking, visual craft and shipped impact


• Mastery of Figma (auto-layout, variants, tokens) and basic motion/animation


• Hands-on with design systems, component libraries and responsive layouts


• Fluency in English (our working language); German is a bonus


• Solid grasp of HTML/CSS limits and possibilities - enough to speak dev

Bonus points

• Designed for technical audiences (DevOps, SRE, cloud engineers)


• Ran quantitative research (surveys, funnel analytics) or A/B experiments


• Experience with real-time data products

• Product-centric - 100 % focused on solving a mission-critical pain felt by every always-on business |


• Hybrid freedom - 2 days remote by default; gorgeous Rheinauhafen roof terrace when you’re in town |


• Focus > meetings - We time-box syncs, favour async docs and protect maker time |


• 28 days off - …plus public holidays |


• Commute perks - subsidised public transport|

When you apply, include a single link (Figma, PDF, or live URL) to one project that best illustrates your end-to-end product-design process for a B2B or SaaS interface.