Ruby Labs is a leading tech company that creates and operates innovative consumer products. We offer a diverse range of opportunities across the health, education, and entertainment industries. Our innovative teams are driving the future of consumer-led products, and we're always looking for passionate individuals to join us. Learn more about our story at: https://rubylabs.com/about-us/
We're building and scaling a high-growth D2C product used by hundreds of thousands of customers globally, and we're now entering a phase where UX is a core growth lever. We're adding new capabilities, expanding the product, and focused on improving retention, activation, and funnel performance — and we need a UX leader who can drive that.
We're looking for a UX Lead who is deeply technical, data-fluent, and design-strong. You'll own UX strategy, design quality, and the research practice — not as a support function, but as a core driver of product and business performance.
Today, design is mostly engineered directly in the frontend, and UX research lacks structure and direction. You will change that.
This is not a 9–5 role. It's a high-ownership, high-impact position for someone who wants to build systems, lead people, and directly influence growth metrics.
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.
Core Strengths (Must Have)
Data & Analytics
Strong, hands-on ability to analyze product data independently — you pull your own funnels, you don't wait for reports.
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 — you've set direction, reviewed work, and raised 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.
Experience in LegalTech, document tools, or utility products.
Familiarity with TailwindCSS, React/Next.js component implementations — you can review frontend code, not just spec it.
Experience working in engineering-led teams without a separate design org.
Exposure to PDF-based or form-heavy UX flows.
You will define how UX drives growth, retention, and monetization at scale.
You will build the design and research foundation for multiple products.
You will work directly with product leadership and influence key business decisions.
You will turn UX from a weak point into a competitive advantage.
High pace, high ownership, high standards.
Not a role for a "design-only" mindset — this is about impact on business metrics.
We expect people to take initiative, move fast, and continuously improve the product.
Ruby Labs operates within the CET (Central European Time) zone. Applicants from any country are welcome to apply for the position as long as they are located within approximately ± 4 hours of CET. This ensures optimal collaboration and communication during working hours.
Discover the perks of being part of our vibrant team! We offer:
Remote Work Environment: Embrace the freedom to work from anywhere, anytime, promoting a healthy work-life balance.
Unlimited PTO: Enjoy unlimited paid time off to recharge and prioritize your well-being, without counting days.
Paid National Holidays: Celebrate and relax on national holidays with paid time off to unwind and recharge.
Company-provided MacBook: Experience seamless productivity with top-notch Apple MacBooks provided to all employees who need them.
Flexible Independent Contractor Agreement: Unlock the benefits of flexibility, autonomy, and entrepreneurial opportunities. Benefit from tax advantages, networking opportunities, reduced employment obligations, and the freedom to work from anywhere. Read more about it here: https://docs.google.com/document/d/1tzxGX4Uu7Ts_HCLFXESKLnKaaBfVCPf1f9AYZPrkjJM/preview?tab=t.0
Be part of our fast-growing team and seize this excellent opportunity for personal and professional growth!
After submitting your application, we conduct a thorough review which typically takes 3 to 5 days, but may occasionally take longer due to the volume of applications received. If we see a potential fit, we proceed with the following steps:
Recruiter Screening (40 minutes)
Technical Interview (90 minutes)
Final Interview (60 minutes)
At Ruby Labs, we move fast, aim high, and expect the same from our team. We’re not here to play small—we’re here to build, grow, and win. That means we look for people who are ambitious, driven, and ready to give their best every single day.
This is a place for individuals who thrive under pressure, embrace challenges, and see opportunity in every obstacle. If you’re hungry to achieve, motivated by impact, and want to grow at the speed of your own ambition, Ruby Labs offers the platform to make it happen.
Here, effort is matched with reward. We recognize those who go all in and deliver results, and we create space for people who want more—more responsibility, more growth, and more success.
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