Lead Product Designer (Growth)

JR United Kingdom; Belfast; Remote; GBP 50,000 - 75,000; Full time

Job summary

A leading company is seeking a Lead Product Designer (Growth) to enhance user acquisition and retention through exceptional product experiences. You will apply your 5+ years of B2C mobile design expertise to shape impactful user journeys, working collaboratively with cross-functional teams to deliver measurable improvements. In this dynamic role, you will balance experimentation with innovation, contributing to the growing impact of ADHD management through the company's app.

Benefits

Fast-paced learning through direct hands-on experience

Flexible remote working environment

25 days' vacation per year

Opportunity to positively impact lives with ADHD

Qualifications

• 5+ years of B2C mobile product design experience.
• Strong portfolio demonstrating user-centered design and measurable impact.
• Experience in A/B testing and behavioral psychology.

Responsibilities

• Drive end-to-end design ownership across the Growth journey.
• Lead user research initiatives to uncover behavioral insights.
• Evolve the Design System for consistency and rapid growth.

Skills

User-Centered Design

A/B Testing

Data-Driven Optimization

Growth-Driven Mindset

Collaboration Skills

Job description

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ADHD can make daily life challenging, but accessing effective support shouldn't be. At Inflow, we're making ADHD care accessible through our comprehensive app that combines expert-led learning with practical tools and community support. We help people understand and work with their ADHD through bite-sized learning modules, guided journaling tools, live co-working sessions, and a supportive community. Since launching in April 2021, we've become the #1 ADHD management app, helping tens of thousands of people thrive with ADHD—and we're just getting started.

We are a fiercely ambitious team that thinks through everything from first principles and values logic over experience. In order to move fast, we learn fast. We believe in learning by doing, so we jump straight in. We say things as they are and believe success is driven by honesty. We're not afraid to be ourselves and while our mission is serious, we don't take ourselves too seriously.

About the role

We're seeking a Lead Product Designer (Growth) to drive user acquisition, engagement, and retention through exceptional product experiences. With 5+ years of B2C mobile design expertise, you'll blend deep user empathy with data-driven optimization to scale our impact.

As a key member of the Product Growth team, you'll shape every touchpoint of the user journey—from first impression to long-term engagement. You'll partner with Product, Engineering, Marketing, and Data Science teams to identify opportunities, run experiments, and deliver meaningful improvements that help more people benefit from our product.

You'll lead the entire design process, from discovery and ideation to solution design, user research, high-fidelity execution, and Design System management. Balancing iterative experimentation with bold innovation, you'll optimize key growth levers while maintaining a cohesive product experience.

Responsibilities

• Drive end-to-end design ownership across the Growth journey, from research and ideation through high-fidelity implementation and continuous optimization
• Design and optimize key user experiences across acquisition, onboarding, activation, and retention to achieve ambitious growth metrics
• Lead user research initiatives to uncover deep behavioral insights, pain points, and opportunities that inform product strategy
• Develop and validate design hypotheses through A/B testing, leveraging behavioral psychology and quantitative data to maximize impact
• Partner with cross-functional teams across Product, Engineering and Marketing to identify opportunities, influence roadmap decisions, and ensure high-quality implementation
• Balance rapid experimentation with thoughtful, scalable solutions—knowing when to iterate quickly vs. invest in deeper exploration
• Evolve our Design System to maintain consistency while enabling rapid experimentation and growth

Job requirements - Must haves

• 5+ years of B2C mobile product design experience, ideally in consumer apps with proven impact on business metrics
• Growth-driven mindset with hands-on experience in at least two areas among conversion, onboarding, activation, or retention
• Strong portfolio demonstrating user-centered design process and measurable outcomes
• Strong experience in A/B testing and data-informed design optimization to improve key growth metrics
• Deep understanding of user psychology, behavioral drivers, and decision-making processes
• A keen ability to uncover deeper user motivations, frustrations, and behaviors beyond surface-level insights, translating them into impactful design solutions
• Ability to balance speed and long-term design impact in a fast-paced, experimentation-driven environment
• Curiosity about user needs and business goals, using research to inform design hypotheses and decisions
• Strong collaboration skills with engineers and product teams, ensuring seamless execution and impact

Job requirements - Nice to haves

• Experience managing and scaling design systems to enhance consistency, scalability, and overall user experience over time
• Background in mental health or healthcare products
• Knowledge of ADHD and its impact on user experience

What we can offer

• Fast-paced learning through direct hands-on experience
• Flexible remote working environment
• Rest up with 25 days’ vacation per year
• The opportunity to positively impact the lives of those with ADHD