About Upstack Data
We're a customer identity resolution platform helping marketing teams connect ad spend to actual customer behavior. We're a small but fast-growing bootstrapped SaaS company based in the USA with a fully remote team.
Join our small, fast-moving startup team managing websites for Upstack Data (SaaS platform for e-commerce attribution) and DTC Growth Summit (events and marketing). We need someone who can hit the ground running and own our web presence.
What You'll Do:
- Build and maintain responsive websites using Webflow + Untitled UI components
- Implement custom interactions, animations, and CMS structures
- Integrate third-party tools and APIs (Stripe, Klaviyo, analytics platforms)
- Optimize for performance, SEO, and conversion
- Move fast and wear multiple hats in a lean startup environment
- Work directly with founders on strategic web initiatives
- Available for 4-5 hours overlap with US Eastern timezone (typically 2pm-10pm Eastern European time)
Requirements:
- 4+ years of Webflow development experience with live portfolio (required)
- Proven experience building with Untitled UI component library (required)
- Proven experience with Saas marketing websites
- Proven experience with webflow e-commerce
- Proven experience with landing pages
- Strong HTML, CSS, and JavaScript skills
- Deep knowledge of Webflow CMS, interactions, and custom code
- Self-directed and comfortable with autonomy in a startup setting
- Excellent communication for remote collaboration
- Ability to manage multiple projects and prioritize effectively
Bonus:
- Experience with Client-First framework
- SaaS/B2B website expertise
- E-commerce integrations background
- Marketing website / landing page
To Apply: Send portfolio with 3+ live Webflow projects. Must include examples built with Untitled UI.

