UX Lead (Product & Growth)

Ruby Labs is a leading tech company that creates and operates innovative consumer products across the health, education, and entertainment industries. The company is building and scaling a high-growth D2C product used by hundreds of thousands of customers globally.

Core Strengths (Must Have):

• Strong, hands-on ability to analyze product data independently.
• Deep experience with Mixpanel, GA4, Amplitude, or similar product analytics tools.
• Ability to read cohort and retention data, identify patterns, and build hypotheses from raw numbers.
• Experience designing and running A/B tests (GrowthBook, Optimizely, or similar) end-to-end.

Retention & Growth Expertise:

• Demonstrated experience driving measurable improvements in retention, activation, or LTV.
• Strong understanding of conversion funnels, retention loops, and user behavior at scale.
• Background in CRO (conversion rate optimization) or growth-driven design.

Design Leadership:

• Strong design background with a portfolio of conversion-oriented, data-validated work.
• Experience leading or managing designers — setting direction, reviewing work, and raising team quality.
• Ability to define and maintain a consistent, high-quality design system.
• Comfortable working in environments where design is implemented directly in frontend (no Figma-first culture).

UX Research:

• Proven ability to collect both qualitative and quantitative user insights.
• Experience designing and running user interviews, surveys, and research frameworks.
• Ability to translate research into clear, actionable product decisions.

Experience & Mindset:

• 5–8+ years in UX, Product Design, or design leadership, ideally in D2C, SaaS, or consumer digital products.
• Experience working in fast-paced, growth-oriented environments with daily or near-daily releases.
• Systems thinker — designs scalable patterns, not one-off screens.
• Clear communicator — explains the why behind every design decision with data.
• Strong ownership mindset — owns outcomes, not output.

Nice to have:

• Experience in LegalTech, document tools, or utility products.
• Familiarity with TailwindCSS, React/Next.js component implementations — able to review frontend code.
• Experience working in engineering-led teams without a separate design org.
• Exposure to PDF-based or form-heavy UX flows.

UX Strategy & Growth Impact:

• Take full ownership of UX, design quality, and user journeys across the product.
• Turn UX into a measurable growth lever — directly improving activation, retention, and conversion.
• Work closely with Product and Growth to design and optimize funnels, onboarding, paywalls, and retention loops.
• Audit and continuously improve the end-to-end user journey — from acquisition through long-term retention.

Data & Analytics (Core Strength):

• Analyze product analytics independently — Mixpanel funnels, cohort analysis, retention curves, drop-off patterns.
• Connect UX decisions directly to business metrics — activation rate, retention curves, LTV, conversion.
• Define hypotheses, experiments, and success metrics for every UX initiative.
• Use session recordings (Clarity, FullStory, Hotjar), heatmaps, and behavioral data to identify friction points.
• Proactively request and define new analytics instrumentation and reporting needs with the data team.
• Validate UX changes through A/B testing (GrowthBook or similar) — hypothesis, implementation, result analysis.

Design Leadership:

• Define, enforce, and evolve a clear, scalable design system (implemented directly in frontend, not Figma-first).
• Lead and direct designers and frontend engineers involved in UI/UX work — set the definition of done.
• Set the visual and interaction quality bar across the product.

UX Research:

• Establish a structured research practice — define priorities, run interviews, surveys, and usability tests.
• Translate raw research into prioritized, actionable product decisions.
• Direct and level up the existing UX researcher on the team — provide structure, frameworks, and clear priorities.

Applicants must be located within approximately ± 4 hours of the Central European Time (CET) zone to ensure optimal collaboration and communication during working hours.