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3.5
3.5
75%
$75 USD / Hour
・

Ukraine (5:48 PM)
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Joined on February 3, 2026
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1 Recommendation
$75 USD / Hour
・
Hello. I specialize in building crypto betting and blockchain-based gambling platforms that are secure, scalable, and ready for real-world use. My experience comes from working on live betting systems, not proof-of-concepts, where accuracy, security, and uptime directly impact revenue and user trust. I’ve developed end-to-end crypto betting platforms, including sportsbook-style betting, casino-style games, and provably fair systems. My work covers the full stack, from system architecture and backend logic to wallet integration, transaction processing, and high-performance APIs that support real users and real money. On the backend, I design robust, secure architectures with a strong focus on data integrity and performance. I have implemented crypto wallet flows for deposits and withdrawals, blockchain transaction confirmations, odds calculation, bet placement and settlement logic, and balance management. I understand how critical atomic transactions, idempotency, and precise fund handling are in betting systems. I have hands-on experience integrating with blockchains such as Bitcoin and EVM-compatible networks, managing on-chain transactions, confirmations, and security best practices. I also work with third-party services including odds providers, payment gateways, KYC solutions, and fraud prevention tools when required. Security is a top priority in all my projects. I implement secure authentication, role-based access control, wallet protection, rate limiting, anti-abuse measures, and detailed audit logging. I design platforms to handle high traffic, peak betting activity, and real-time updates without sacrificing stability or performance. On the frontend, I build responsive, intuitive interfaces that make betting easy and transparent for users. I focus on real-time odds updates, live betting experiences, and clear transaction histories so users always know where their funds and bets stand. I approach crypto betting projects with a product-focused and compliance-aware mindset. I understand the regulatory sensitivity of this space and build systems that are structured, auditable, and adaptable across different jurisdictions. If you’re looking for a developer who understands both the technical and financial risks of crypto betting platforms, communicates clearly, and delivers production-ready systems built to scale, I’m ready to help. Thanks
Verifications
On time
100%
On budget
100%
Accept rate
100%

Full stack developer

Full stack developer

Full stack developer

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Taking longer than expected
Rakesh C.
@rakeshk771
•

Jodhpur, India
•
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happier with the result. His work was absolutely outstanding. The attention to detail, precision, and overall craftsmanship were truly impressive. He was professional, patient, and very responsive throughout the entire process. He listened carefully to my requests and delivered exactly what I had in mind — even better than I expected. The final product was beautifully made, high quality, and clearly crafted with care and skill.
Mohamad L.
@mohamadl7
•

arraba, Israel
•
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A professional coder who is quick in responding. He delivered great work with lightning speed. Thanks Stanislav.
Peter K.
@PK888
•

Wollerau, Switzerland
•
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They were very good at communicating, and did more work than they needed to. I made a computer vision software that needed cloud hosting and database with security and he delivered quickly, and kept clear and fast communication the whole time.
Alessandro D.
@zonktoo
•

London, United Kingdom
•
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Experience
Senior Blockchain & Betting Platfrom Developer
Mar, 2021 - Dec, 2023
•
2 years, 9 months
Senior Blockchain & Betting Platfrom Developer | Confidential Crypto Betting Startup
Mar, 2021 - Dec, 2023
•
2 years, 9 months
Integrated backend and blockchain for a crypto-based betting platform with sportsbook-style wagering and provably fair gaming. Designed and implemented wallet systems for crypto deposits and withdrawals with transaction monitoring and confirmation across EVM-compatible networks. etc.

Tallinn, Estonia
Mar, 2021 - Dec, 2023
•
2 years, 9 months
Blockchain & Crypto Application Developer
Jan, 2019 - Feb, 2021
•
2 years, 1 month
Blockchain & Crypto Application Developer | Independent Contract (Multiple Crypto Projects)
Jan, 2019 - Feb, 2021
•
2 years, 1 month
Created web applications and backend services that incorporate blockchain technology for crypto services, including wallet systems, payment systems, and tools for tracking transactions. I handled on-chain transactions and confirmations, and security integrations with Bitcoin and EVM-compatible blockchains. etc.

Kyiv, Ukraine
Jan, 2019 - Feb, 2021
•
2 years, 1 month
Education
National Technical University of Ukraine 'Igor Sikorsky Kyiv Polytechnic Institute'
2013 - 2017
•
4 years
Degree

Ukraine
2013 - 2017
•
4 years
Certifications
P
Preferred Freelancer Program SLA