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Krispel D
@krispel_d
United States
English, German, Spanish, Portuguese
About me
I am a results-driven AI developer specializing in custom AI mobile app development, AI website development, AI chatbot integration, AI agent systems, and AI SaaS solutions. I build scalable, intelligent, revenue-driven products for startups and businesses. Skilled in Flutter, React Native, Python, Node.js, Firebase, MongoDB, AWS, Google Cloud, OpenAI API, GPT integration, TensorFlow, and PyTorch, I deliver cross-platform AI mobile apps, GPT-powered chatbots, AI automation systems, and production-ready AI SaaS platforms.
Skills
Krispel D
Offline •
Average response time: 1 hour
See my services
Deployments & DevOps
I will convert lovable base44 web to android ios app capacitor mobile app development
Trading Bots Development
I will replit mexc trading bot solana crypto trading bot bittensor rende using eliza os
Portfolio
Work experience
MOBILE APP SPECIALIST
SAFE HAVEN • Freelance
Jan 2025 - Present • 1 yr 4 mos
Full-Stack Developer & Mobile App Specialist Freelance | 2023 – Present Designed and developed Safe Haven, a modern Airbnb-inspired mobile app with a seamless booking, hosting, and travel experience. Implemented advanced search filters, property listing management, booking confirmation systems, and secure in-app payments for both hosts and guests. Built 3D UI/UX animations and cinematic visuals for marketing materials to increase portfolio engagement and client conversion. Managed end-to-end mobile app deployment, including Android and iOS platforms, ensuring smooth performance and fast navigation. Integrated real-time chat, wishlists, and calendar scheduling, enhancing user experience and increasing repeat bookings. Achieved high client satisfaction by delivering professional, scalable, and visually appealing applications on time. Key Technologies: React Native, Next.js, Supabase, Firebase, ShadCN, Bolt, Google OAuth, AI-enhanced UI design
10 Reviews
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
1-5 out of 10 Reviews
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diaz_turner89
Repeat Client
United States
My app UI was the kind of thing that looked slightly off but I couldn't explain why. He saw it immediately, fixed everything and now it looks like something people will actually trust and take seriously. That alone is worth a lot for my business
Seller's Response
Helpful?
diaz_turner89
Repeat Client
United States
I've been putting off this migration for months because I was scared something would break. Handed it over and everything was sorted, app moved to AWS, domain connected, SSL up, the whole thing. Took way less time than I expected and nothing broke in the process. App feels noticeably faster now too. Solid work, no complaints.
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Helpful?
james_lukas3
Repeat Client
Canada
Krispel did an excellent job on my project. He made my web app fully responsive across all devices exactly as requested, and everything looks clean and well-structured now. Communication was smooth, and he delivered within the promised time without any issues. I really appreciated his attention to detail,...
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Helpful?
james_lukas3
Repeat Client
Canada
Krispel D delivered an outstanding 5-star experience! The quality of work exceeded my expectations, with great attention to detail and professionalism throughout the project. Communication was smooth, and every requirement was clearly understood and executed perfectly. Fast delivery and top-notch results....
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curtisc8m
Repeat Client
United States
I had a great experience working with Krispel. He handled the task professionally and delivered exactly what was needed, on time and with great attention to detail. Communication was smooth throughout, and he was very responsive to feedback. I highly recommend him and would definitely work with him again.
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