Mark C

Mobile App Developer & Product Strategist

The Still Foundation • Freelance

Nov 2025 - Present • 6 mos

I design, build, and launch mobile apps that generate real users and revenue. With over a decade of experience in game production, product management, and app development, I help founders and creators turn ideas into working products fast. I specialize in: • Building MVPs using Flutter and Supabase • Turning ideas into clear product roadmaps • Launch strategy and monetization systems • App Store optimization and growth strategy • Rapid prototyping and iteration I have shipped multiple apps and digital products, including subscription-based apps focused on user retention and engagement. Clients work with me when they want: • A clear path from idea to launch • Faster development without wasting money • A product that is built to grow, not just exist If you’re serious about launching your app, I can help you get there quickly and efficiently.

Mobile App Product Manager & MVP Builder

Upwork • Freelance

Sep 2019 - Present • 6 yrs 8 mos

I help founders turn app ideas into launched products quickly and efficiently. As a Product Manager and Producer with 6+ years of experience, I have delivered 50+ mobile and online products across iOS, Google Play, and web platforms with a 100% on-time delivery rate.  I specialize in: • MVP planning and product roadmaps • Feature prioritization and execution • Launch strategy and monetization systems • A/B testing and user retention improvements • Cross-functional coordination between design, engineering, and marketing I focus on building products that are not only functional, but designed to grow, retain users, and generate revenue. If you have an app idea but don’t know how to launch it properly, I can help you go from concept to execution with a clear, structured plan.

Project Manager (Game Production)

Spin Master • Temps plein

Mar 2021 - May 2023 • 2 yrs 2 mos

Led production and delivery of global mobile games for major brands including Paw Patrol, Bakugan, Monster Jam, and Gabby’s Dollhouse. Key results: • Increased player engagement by 20% through live updates and gameplay improvements  • Planned and executed seasonal content that improved retention and monetization • Managed cross-functional teams across design, engineering, and marketing • Delivered multi-market releases with streamlined localization workflows • Used player data and feedback to drive product decisions This experience allows me to bring structured execution and real-world product strategy into every client project.