About us

Gismart is a value-driven mobile app developer with a strong presence in the Health & Wellness, Utilities, and Music app markets. We have recently reached an important milestone of 1B+ downloads worldwide, moving closer to our mission of supporting people on their self-improvement journeys.

Headquartered in London, Gismart is a global company with a team of 400+ people across Europe and beyond. We bring together professionals from entertainment, music, and tech backgrounds, combining creativity, product thinking, and strong execution to build apps used by millions of people worldwide.

Our mission is to become a stepping stone on our customers’ journeys of self-improvement.

Our values

• Deliver what matters

• Respect and support others

• Initiate and own

• Voice openly

• Execute with quality

If you are passionate about mobile products and want to work on apps with real scale, Gismart is the right place to grow, take ownership, and make an impact.

About the project

At Radiotech, we believe music should be accessible to everyone — not only to those who grew up taking lessons.

We are a product team inside the Gismart ecosystem, focused on building and growing music apps across iOS and Android. Our portfolio includes products with millions of installs, rich functionality, and a long history of product development. These are apps that help users not only consume music content, but also play, learn, practice, create, interact, and enjoy the process.

Our goal is to make music feel more approachable, engaging, and human for beginners, hobbyists, and people who want to bring more music into their daily lives.

We are looking for a Product Manager who will not wait for perfectly detailed instructions, but will proactively identify opportunities, take ownership, and move the product forward together with the team.

Responsibilities

• Own the user journey from the first purchase to the end of the customer lifetime

• Identify opportunities to improve activation, engagement, retention, monetization, and LTV

• Work with mobile app functionality, onboarding, paywalls, subscription mechanics, content flows, learning flows, and engagement loops

• Build and prioritize the product roadmap together with leadership, design, engineering, analytics, marketing, and creative teams

• Run product discovery through user behavior analysis, market research, competitor analysis, support feedback, and product analytics

• Write clear product specs, user stories, acceptance criteria, and experiment briefs

• Launch and analyze A/B tests across onboarding, paywalls, pricing, retention, engagement, and monetization

• Track product metrics, build conclusions from data, and make ship / iterate / kill decisions

• Collaborate with UA, PMM, creative, ASO, and growth teams to improve the full funnel from acquisition to long-term retention

• Proactively identify problems and act without waiting for detailed instructions

Requirements

• 3+ years of Product Management experience in B2C mobile products

• Hands-on experience with iOS and/or Android app development processes

• Strong understanding of subscription or freemium monetization models

• Proven experience improving product metrics such as conversion, retention, LTV, ARPU, ARPPU, churn, activation, or engagement

• Experience working with mobile product teams: engineers, designers, QA, analytics, marketing, and product leadership

• Strong analytical skills: funnel analysis, cohort analysis, retention analysis, A/B testing, and experiment interpretation

• Ability to work with ambiguity, define prioriti