Founders Associate - Engagement Innovation

JustPlay is looking for an experienced and business-oriented Founders Associate - Engagement Innovation to help make the JustPlay app ecosystem dramatically more fun, exciting and engaging. You'll work directly with founders across every product team, constantly looking for ideas that make users want to click, play, win, explore and come back.

What you'll do

• Work directly with the founders as a thinking partner on what makes JustPlay exciting to play
• Embed across product teams to find opportunities — not to run them
• Maintain a constant flow of ideas, from single-line copy changes to entirely new mechanics
• Tear down the world's most engaging consumer apps and translate what works there into what could work here
• Turn ideas into things people can act on: a sharp one-pager, a mock, a test plan
• Push ideas through to launch by making yourself useful to the teams shipping them
• Measure what happens, tell the truth about it, and scale or kill accordingly
• Build our collective instinct for engagement, so the whole company gets better at this over time

What you'll need

• Exceptional consumer instincts: you can tell why something is fun or addictive, not just that it is
• Extremely high agency: you find the problem, propose the answer, and chase it until it's live, without being assigned it
• A genuine obsession with engagement mechanics in top B2C products such as games, social, commerce, or education
• Evidence that your ideas have shipped and moved a number, however small the idea was
• Fluency with data: you can read an experiment result honestly, including when it kills your favourite idea
• You write and speak clearly enough to sell an idea to a founder and an engineer in the same afternoon
• Comfortable being the newest voice in a room of people who know the product better than you and disagreeing anyway
• You communicate fluently in English, both written and spoken

Nice to have

• Casual, hyper-casual, or rewarded mobile gaming experience
• Background in LiveOps: events, seasons, progression, economies, or meta design
• Hands-on experimentation experience: you've designed and read A/B tests
• Enough technical or design literacy to mock something up yourself rather than describe it
• Familiarity with loyalty and rewards mechanics, or the mobile advertising landscape

What they offer

• Flexible working hours and options for digital nomads, occasional office visitors, or regular office-goers
• Free personal coaching through nilo.health
• Competitive personal development budget of up to 2000€/year and free language tutoring
• 25 vacation days, free Wellhub gold subscription, free Deutschland-Ticket, and €50 monthly internet contribution
• State-of-the-art equipment and relocation package with visa support
• Berlin office: ergonomic setup, free daily lunch, dog-friendly environment