Lead Product Designer

Lead Product Designer Scrambly, Serbia

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. Growing 250%+ YoY across revenue, team, product, and technology — fully bootstrapped and profitable. Building the future of app discovery: a reward-powered alternative to the App Store and Google Play.

Responsibilities:

Take full responsibility for UX and UI across all mobile and web products, and make the final call on design decisions;

Work with Product to understand users through research, data, funnels and session replays, then turn insights into prioritized hypotheses;

Design low-effort experiments and A/B tests with Product and Engineering, learn quickly and iterate without dropping quality;

Deliver flows, prototypes, high-fidelity designs and interaction specs, with pixel-perfect execution on everything we ship;

Create and own Scrambly's design language, components and patterns so design stays fast and consistent across platforms;

Represent design in leadership discussions and challenge product or technical decisions that hurt the experience;

Manage external partners (agencies, UX writers, researchers), and hire, mentor and grow the internal team as we scale.

Requirements:

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.

Working conditions:

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.

Apply

#serbia

What You'll Do

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

Basic Qualifications

• 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;