Jobs in Warszawa, Polonia

Upstack Data

• Remote (Eastern Europe) | Full Time
• Overlap with US Eastern time zone for key meetings, but otherwise manage your own schedule

Upstack Data is a bootstrapped, profitable SaaS company providing customer identity resolution and marketing attribution services for e-commerce businesses. We help marketing teams connect ad spend to customer behavior across platforms.

We're a lean, focused team building tools that e-commerce marketers actually want to use. No bureaucracy, no endless meetings, just talented people solving real problems for real customers.

We're looking for a Senior Web Designer who can own the visual identity and user experience across both our marketing site (Webflow + Untitled UI) and analytics dashboard (React + shadcn). You'll be the design voice of the company, translating complex attribution data into intuitive, beautiful interfaces that convert visitors and help marketers make better decisions.

This isn't a role where you hand off Figma files and hope for the best. You'll work directly with our engineering team to implement designs, iterate based on user feedback, and continuously improve both our marketing presence and analytics product.

• 5+ years of professional web design experience, including at least 2 years designing for SaaS products
• Expert-level proficiency in Figma with a strong portfolio demonstrating your work
• Proven experience designing analytics dashboards, data visualizations, or BI tools (this is critical)
• Deep experience with Untitled UI design system (you know how to use, customize, and extend it for Webflow)
• Proven experience designing for Webflow (you understand its capabilities and constraints)
• Strong understanding of Untitled UI components for marketing website
• Strong understanding of React component-based design and experience designing for shadcn/ui or similar component libraries (Radix UI, Headless UI, etc.)
• Portfolio showing dashboard design work with charts, tables, filters, and complex data displays
• Excellent English communication skills (written and verbal)
• Self-directed work style—you can own projects from concept to completion with minimal oversight

• Experience designing for e-commerce or marketing technology products
• Familiarity with marketing attribution concepts, conversion tracking, or analytics tools (Google Analytics, Mixpanel, Amplitude)
• Experience with data visualization libraries (Tremor, Recharts, Chart.js, D3.js)
• Basic HTML/CSS knowledge to collaborate effectively with developers
• Experience with conversion rate optimization and growth design
• Experience designing with Tailwind CSS principles in mind

• Design and iterate on our Webflow marketing website to improve conversion rates and communicate our value proposition clearly
• Leverage Untitled UI components to maintain design consistency and speed up implementation
• Create landing pages for campaigns, product launches, and feature releases
• Develop a cohesive visual brand system that works seamlessly between Webflow and our analytics dashboard
• Design email templates, social assets, and other marketing collateral as needed
• Design intuitive interfaces for complex marketing attribution data and multi-touch attribution models
• Create data visualizations that make analytics insights immediately actionable for e-commerce marketers
• Design dashboards that handle large datasets (billions of clickstream events) with clarity and performance
• Work with shadcn components to create consistent, accessible UI patterns for charts, tables, filters, and reports
• Design customer journey visualizations, conversion funnel views, and ROI reporting interfaces
• Create onboarding flows that help new users understand attribution concepts quickly
• Design empty states, loading states, and error handling for data-heavy interfaces
• Work directly with the CEO and engineering team to prioritize design work based on business impact
• Participate in user research and customer calls to understand pain points and validate design decisions
• Provide design specs and support to developers during implementation
• Contribute to product strategy discussions with design perspective
• Bridge the visual language between our Webflow marketing site and React analytics dashboard

• Data literacy: You understand how to present complex data in ways that drive decisions
• Ownership mindset: You see problems and fix them without being asked
• User empathy: You advocate for the user while balancing business needs
• Speed over perfection: You ship quickly, learn, and iterate rather than endlessly polishing
• Clear communication: You can explain design decisions and defend your choices
• Business savvy: You understand how design impacts conversion, retention, and revenue

• Competitive salary: $3,500-$5,500/month (commensurate with experience)
• Fully remote: Work from anywhere in Eastern Europe
• Flexible hours: Overlap with US Eastern time zone for key meetings, but otherwise manage your own schedule
• Real impact: Your work directly influences product success and company growth
• Direct collaboration: Work closely with the CEO and a small, talented engineering team
• Growth opportunity: As we scale, there's room to build and lead a design team
• Modern tools: Whatever design tools and software you need to do your best work
• Autonomy: Own your domain without micromanagement

• Marketing: Webflow, Untitled UI, Figma
• Product: React, TypeScript, shadcn/ui, Tailwind CSS

If you read this far, send a private note with your portfolio for priority consideration.