Lead Product Designer

Scrambly; Portugal; On-site; EUR 70,000 - 95,000; Full time

Benefits offered by this job

Founding leadership role shaping a 글로벌

Build design team from scratch

Direct collaboration with Product, Eng

Competitive compensation

Fast-paced environment

Job summary

Scrambly S.r.l. seeks a Lead Product Designer to own the product design function end-to-end for mobile and web products used by millions.

In the hands-on phase you will craft core experiences, define design standards, and set the vision while building and scaling an internal design team as the company grows. You will partner with Product and Engineering to translate business goals and user needs into clear design solutions, maintain a high quality bar, and drive a world-class product experience

Qualifications

• 7+ years in product design and mobile-first consumer products.
• World-class portfolio showing exceptional UX/UI craft, strong product thinking and end-to-end work shipped at scale.
• Experience as the sole or lead designer with full ownership of design decisions.
• Hands-on experience with user research, usability testing, hypothesis-driven design, rapid prototyping and A/B testing.
• Experience leading or mentoring designers, or managing agencies and external partners.
• Ability to move fast without losing quality, turning ambiguous problems into simple, elegant solutions.
• English at B2 or above.

Responsibilities

• Own the experience across all mobile and web products with final design calls.
• Partner with Product to understand users via research, data, funnels and session replays; turn insights into actions.
• Design low-effort experiments and A/B tests; iterate quickly while maintaining quality.
• Deliver flows, prototypes, high-fidelity designs and interaction specs with pixel-perfect execution.
• Create and own Scrambly’s design language, components and patterns for consistency.
• Represent design in leadership discussions; challenge decisions impacting user experience.
• Lead the function by managing external partners and growing the internal design team.

Skills

Product design

Mobile-first

UX/UI craft

End-to-end product thinking

Mentoring designers

User research

A/B testing

Ownership mindset

English proficiency

Tools

Mixpanel

Amplitude

PostHog

Job description

About The Company

Scrambly is one of the fastest-growing adtech startups in the world, featured in the AppsFlyer Performance Index and Singular ROI Index in just 3.5 years.

We’re growing 250%+ YoY across revenue, team, product, and technology — fully bootstrapped and profitable.

We’re building the future of app discovery: a reward-powered alternative to the App Store and Google Play. Our loyalty-driven ecosystem connects millions of users with the world’s top apps and delivers unmatched, ROI-focused growth for mobile advertisers.

Our mission is to build a true alternative to traditional app stores — fueled by rewards and data — and create a new, performance-first growth engine for mobile app advertisers.

About The Role

As a Lead Product Designer at Scrambly, you will fully own the product design function end-to-end and be responsible for the quality, consistency, and impact of the user experience across all mobile and web products used by millions of users worldwide.

This is a hands‑on leadership role. In the initial phase, you will personally design core product experiences while defining Scrambly’s design vision, strategy, standards, and culture. Over time, you will build and lead an internal product design team and scale the design function as the company and product portfolio grow.

You will act as a strategic partner to Product and Engineering leadership, translating business goals, product metrics, and user needs into clear, user‑centered design solutions. You will have full ownership over design decisions and will be expected to proactively identify problems, propose solutions, and continuously raise the quality bar across the organization.

Your goal is to establish a world‑class product experience and turn Scrambly into a product people genuinely love to use every day.

What You’ll Do

• Own the experience. Take full responsibility for UX and UI across all mobile and web products, and make the final call on design decisions.
• Drive discovery. Work with Product to understand users through research, data, funnels and session replays, then turn insights into prioritized hypotheses.
• Experiment fast. Design low‑effort experiments and A/B tests with Product and Engineering, learn quickly and iterate without dropping quality.
• Set the craft bar. Deliver flows, prototypes, high‑fidelity designs and interaction specs, with pixel‑perfect execution on everything we ship.
• Build the system. Create and own Scrambly’s design language, components and patterns so design stays fast and consistent across platforms.
• Be the voice of the user. Represent design in leadership discussions and challenge product or technical decisions that hurt the experience.
• Lead the function. Manage external partners (agencies, UX writers, researchers), and hire, mentor and grow the internal team as we scale.

What You Bring

• 7+ years in product design, with extensive experience on mobile‑first consumer products.
• A world‑class portfolio showing exceptional UX/UI craft, strong product thinking and end‑to‑end work shipped at scale.
• Experience as the sole or lead designer with full ownership of design decisions.
• Hands‑on experience with user research, usability testing, hypothesis‑driven design, rapid prototyping and A/B testing.
• Experience leading or mentoring designers, or managing agencies and external partners.
• The ability to move fast without losing quality, turning ambiguous problems into simple, elegant solutions.
• Confidence presenting and defending your work with leadership and cross‑functional teams.
• Skill with animation, transitions and microinteractions, and practical use of AI tools in your design workflow.
• A strong ownership mindset and comfort in a fast‑paced, metrics‑driven startup.
• English at B2 or above.

Nice to Have

• Hands‑on use of product analytics tools such as Mixpanel, Amplitude or PostHog.
• Experience building or scaling a design system across multiple platforms.
• Advanced motion design skills.
• A strong network in the design community.
• A background in mobile apps, gaming, rewards, fintech, or marketplaces.

What We Offer

• A founding leadership role shaping a global product used by millions.
• Full ownership of product design, from vision to execution.
• The chance to build the design team from scratch.
• Direct collaboration with Product, Engineering, and company leadership.
• A fast‑paced environment where ideas ship quickly.
• Competitive compensation and flexibility.

Is this you?

This role isn’t for designers who prefer isolated features or pure visual execution. We want a design leader who owns ambiguous problems, makes independent calls, and is accountable for outcomes.

By submitting this application, I agree that my personal data will be collected, processed, and retained by the company solely for the purposes of managing and assessing my candidacy.