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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
Marcin Walczyk
$75/hour
Offline •
Average response time: 4 hours
See my services
Cross-Platform Development
I will develop mobile app ios android web development ui ux design
Cross-Platform Development
I will develop web mobile app scalable aws ui ux design development
Want to work on an hourly basis?
Tell Marcin Walczyk what you need.
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Work experience
Founder & CEO | Mobile & Web Apps, AI & Computer Vision | Scalable Products
Inventively LLC • Full-time
Jan 2023 - Present • 3 yrs 4 mos
Working Remotely Business entity: INVENTIVELY LLC, United States, Delaware At Inventively, we design and build scalable mobile and web applications, AI systems and computer vision solutions for startups and growth focused companies. We deliver end to end product development, from strategy and UX to architecture, engineering and launch. Our focus is building reliable, high performance systems that drive measurable business results. We partner with founders and teams working on ambitious products where execution quality, scalability and long term thinking matter.
Founder & CEO | Mobile & Web Apps, AI & Computer Vision | Scalable Products
Inventively Ltd • Full-time
Jan 2020 - Jan 2023 • 3 yrs
- Business entity: Inventively Ltd, United Kingdom, London At Inventively, I lead a team of experts specializing in mobile and web app development, AI solutions, UI/UX design, hardware design, and end-to-end digital product delivery. As Founder and CEO, I focus on building long-term partnerships with clients who require high-stakes, scalable solutions that deliver measurable business impact.
Software Developer | Mobile, Web & UI/UX Design
Inventively • Full-time
Sep 2018 - Dec 2019 • 1 yr 3 mos
Delivered mobile and web applications for clients in the UK and US, with a focus on performance, scalability, and user-centered design. Provided end-to-end solutions from concept to deployment, helping businesses bring their digital products to life.
123 Reviews
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Rating Breakdown
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- Quality of delivery
- Value of delivery
1-5 out of 123 Reviews
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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?
gabriellee6
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
Canada
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?
