Marcin Walczyk
@marcin_walczyk
Vetted Pro
Top Rated
We build profitable software businesses: Marcin, CEO Inventively LLC
United States
English
Vetted by Fiverr Pro
Marcin Walczyk was selected by the Fiverr Pro team for their expertise.
Vetted for
Mobile App Development
Mobile App Maintenance
About me
Build scalable mobile, web, AI, and computer vision apps with a top-tier engineering team at your side. Leverage our expertise in development, design, payments, and marketing integrations.
As an official RevenueCat technology partner, a San Francisco-based startup that has raised over $100 million in funding, is valued at $500 million, and powers a platform processing over $8 billion annually, we're ready to help you achieve great success.
We build long-term partnerships with entrepreneurs who need a reliable tech team to deliver and maintain the software behind their growing business.
Skills
- AI Development
- React Native expert
- JavaScript developer
- Mobile developer
- Mobile apps developer
Highly responsive
Marcin Walczyk
$75/hour
Offline •
Message Marcin Walczyk
Average response time: 1 hour
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My services
Cross-Platform Development
I will develop mobile app ios android web development ui ux design
Cross-Platform Development
I will develop mobile web ai app saas development figma designer
Cross-Platform Development
I will develop web mobile app scalable aws ui ux design development
Cross-Platform Development
I will develop ai saas platform fintech medtech cybersecurity web
123 Reviews
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Industry
All industries
1-5 out of 123 Reviews
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Most relevant
gabriellee6
Pro client
Canada
Inventively was a great partner from the first interaction. Marcin kept things clear and business-focused, without overcomplicating anything. The collaboration felt easy, efficient, and aligned with how we like to work.
Helpful?
nystroemdigital
Repeat Client
Norway
Really good call with Marcin. Felt like talking to a trusted advisor. Gave us clarity straight away. Appreciate it and would definitely recommend!
Helpful?
sinamarketing
Pro client
Canada
Industry:
Marketing & Advertising
Marcin and the team delivered exactly what I needed, on time and without friction. Communication was clear, and they took ownership, making the process smooth.
Helpful?
nystroemdigital
Repeat Client
Norway
Excellent consultations, very insightful and practical, thank you again.
Helpful?
reachgiant
United States
Working with Marcin was honestly a great experience. He and his team think long term, ask the right questions, and genuinely care about outcomes that matter. The level of business awareness and reliability really stands out.
Helpful?
