HI, I'M
Software
Architect &
Solution Architect
Ph.D. | Transforming complex technical challenges into scalable AI, blockchain, and data space solutions. Expert in AI Agents, Web3, Smart Contracts, and Enterprise Architecture.
AI, Blockchain & Web3 Expert
About Me
Krzysztof Saja, Ph.D. - AI, Blockchain & Web3 Solutions Architect
I'm a seasoned AI, Blockchain, and Web3 Solutions Architect with a Ph.D. and over 15 years of experience in software architecture and development. I specialize in designing and implementing cutting-edge AI-powered systems, blockchain solutions, and decentralized applications.
My expertise spans across the entire AI and blockchain stack, from AI agent development and vibe coding to enterprise-grade decentralized applications. For the past two years, I've been deeply involved in teaching how to leverage AI systems, helping public organizations to harness the power of artificial intelligence.
I've successfully delivered solutions for the European Commission, big healthcare data platforms, and innovative NFT marketplaces, always focusing on security, scalability, and user experience. Beyond development, I'm passionate about knowledge sharing as a university lecturer and active contributor to the blockchain community. My work has been recognized in the 'Poland in Web3' report, and I maintain a professional IT laboratory for testing and developing next-generation decentralized solutions.
Name:
Krzysztof Saja, Ph.D.
Email:
krzysztofsaja@gmail.com
Company:
eScript – Blockchain & Web3 Solutions
From:
Szczecin, Poland
Architectural Expertise
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My Facts
Numbers That Matter
Professional Journey
Experience & Leadership
Providing expert consulting in blockchain architecture, smart contract development, and Web3 solutions. Specializing in enterprise blockchain implementations, decentralized applications, and blockchain education.
- Established professional IT laboratory for blockchain R&D
- Published research on blockchain applications in peer-reviewed journals
- Recognized in 'Poland in Web3' report by Cyferium
- Active member of Blockchain Experts Association in Poland
Leading the software architecture and development of the Health Data Hub Core Module, implementing privacy-preserving technologies and blockchain solutions for healthcare data management.
- Designed cloud-native, microservices-based Health Data Hub
- Integrated decentralized infrastructure (DePIN) for privacy-preserving multi-party computation
- Ensured compliance with European Health Data Space standards
- Implemented hardware-accelerated homomorphic encryption
Conducted systematic investigation into NFTs, Verifiable Credentials, and Verifiable Presentations within the EBSI framework. Developed tokenization decision trees for public administration services.
- Analyzed technical, legal, and operational dimensions of EBSI
- Created comprehensive decision tree for tokenization patterns
- Ensured compliance with European Commission guidelines
- Delivered actionable recommendations for blockchain implementation
Led blockchain based sofware architecture and development for decentralized data marketplaces and tokenization platforms. Specialized in EVM-compatible blockchain solutions and smart contract development.
- Developed Europe's first federated data marketplace
- Implemented blockchain-based tokenization systems
- Designed secure smart contract architectures
- Led technical teams in blockchain implementations
Teaching courses on blockchain technology, web development, and programming. Conducting research in blockchain applications, digital identity, and decentralized systems.
- Developed curriculum for blockchain and Web3 courses
- Published research in peer-reviewed journals
- Supervised student projects in blockchain development
- Member of Commission for the Use of AI in University of Szczecin
Providing full-stack development and architectural consulting services with focus on blockchain, Web3, and enterprise solutions.
- Successfully delivered 50+ projects
- Established expertise in blockchain and Web3
- Built professional IT infrastructure for development
- Mentored junior developers
IT Laboratory
I own and operate a comprehensive IT Laboratory on dedicated hardware. This environment is the backbone of my research, developing proof-of-concepts, and continuous learning in DevOps and open-source technologies.
Blockchain & Web3 Portfolio
Featured Projects
PHASE IV AI - Health Data Hub
Healthcare BlockchainLeading the sofware architecture and development of a privacy-preserving Health Data Hub using blockchain and advanced cryptographic techniques for secure health data management and analysis.
- Designed cloud-native, microservices-based architecture
- Implemented privacy-preserving multi-party computation
- Ensured compliance with European Health Data Space standards
EBSI NFT/VC/VP Use Cases
Blockchain for GovernmentConducted comprehensive research on NFTs, Verifiable Credentials, and Verifiable Presentations within the European Blockchain Services Infrastructure (EBSI) framework for public administration services.
- Developed tokenization decision tree for public services
- Analyzed technical, legal, and operational dimensions
- Created comprehensive documentation and guidelines
FAME Federated Data Marketplace
Decentralized DataCo-architected and developed Europe's first federated, decentralized data marketplace enabling secure and efficient data trading with blockchain-based tokenization.
- Designed and implemented federated marketplace architecture
- Developed smart contracts for data tokenization
- Integrated privacy-preserving analytics
NFT Folks Marketplace
NFT PlatformDeveloped a decentralized NFT marketplace with features for buying, selling, and trading digital assets, including a custom royalty system and multi-chain support.
- Built end-to-end NFT marketplace platform
- Implemented custom royalty distribution system
- Optimized gas costs for smart contracts
Crypto Trading Platform
DeFi & TradingDesigned and implemented a comprehensive microservice architecture for automated cryptocurrency trading across multiple centralized and decentralized exchanges.
- Architected scalable trading infrastructure
- Implemented multi-exchange integration
- Developed algorithmic trading strategies
How I Work
My Architecture Process
ANALYZE
Deep analysis of business requirements, technical constraints, and stakeholder needs to understand the complete architectural landscape.
DESIGN
Create comprehensive architectural designs including C4 diagrams, system blueprints, and technology stack decisions with scalability in mind.
PLAN
Develop detailed implementation roadmaps, team structure, and project timelines with risk assessment and mitigation strategies.
IMPLEMENT
Lead development teams through implementation phases, ensuring architectural integrity and providing technical guidance throughout.
VALIDATE
Conduct thorough architectural reviews, performance testing, and security assessments to ensure all requirements are met.
OPTIMIZE
Continuous monitoring and optimization of architectural decisions, incorporating lessons learned and emerging technologies.
Research & Academic Work
Publications & Contributions
Blockchain-Based Certification: Enhancing Transparency and Trust in Higher Education
Published in the European Research Studies Journal, this paper explores the use of blockchain for issuing and verifying academic credentials, proposing a framework for secure and transparent certification systems.
In Code We Trust: Blockchain and the Future of Digital Identity
Contributed to the "Poland in Web3" report by Cyferium, focusing on blockchain's role in establishing trust in digital systems and the future of decentralized identity solutions.
Web3 as Value-Based Narrative Technology
An in-depth analysis of Web3 technologies as narrative frameworks that encode and transmit value systems, examining the philosophical and ethical dimensions of decentralized systems.
Tokenization as a Form of Language Activity for Humans and Machines
Published in Filozofuj, this paper examines tokenization from both technical and linguistic perspectives, exploring its implications for human-computer interaction and digital ecosystems.
Web3 as Transformative Technology
Published in Filozofuj!, this work analyzes how Web3 technologies are transforming digital interactions and creating new paradigms for online engagement and value exchange.
Privacy-Preserving Technologies in Healthcare Data Management
Exploring the application of secure multi-party computation and homomorphic encryption in healthcare data management, with a focus on blockchain integration.
Expert Services
Blockchain & Web3 Solutions
Blockchain Consulting
Expert guidance on blockchain strategy, architecture, and implementation. Specializing in smart contracts, dApps, DeFi, and enterprise blockchain solutions. From concept to deployment, I help businesses leverage blockchain technology effectively.
Technical Leadership
Providing technical leadership for blockchain and Web3 projects. Architecture reviews, code audits, and team mentoring to ensure project success. I help teams navigate complex technical challenges and deliver high-quality solutions.
Smart Contract Development
Secure and gas-optimized smart contract development with a focus on security best practices. Specializing in Solidity, Ethereum, and EVM-compatible blockchains. Full audit support and testing included.
Web3 Integration
Seamless integration of Web3 functionality into existing applications. Wallet connections, blockchain interactions, and decentralized identity solutions. I help bridge traditional web applications with the decentralized web.
Blockchain Education & Training
Comprehensive blockchain education for teams and organizations. Customized training programs, workshops, and mentoring. From blockchain fundamentals to advanced smart contract development.
Research & Innovation
Cutting-edge research in blockchain technology, privacy-preserving technologies, and decentralized systems. Collaborative research projects and academic partnerships to push the boundaries of what's possible with Web3.
What People Say on my LinkedIn
Testimonials
"Krzysztof has proven to be a gifted specialist as well as a committed mentor. I have found his experience as an academic teacher to be a key to his exceptional knowledge sharing skill. It is worth mentioning that he was totally self-reliant during our collaboration."
"He is a strong communicator and problem solver. But most importantly, he was able to take high level concepts and ideas and break them down into achievable and measurable tasks and user stories."
"Krzysztof is a senior developer with wide knowledge on front technologies. I also appreciated his attitude, his comunication skils and his delivering speed. Krzysztof is one of the top colleagues I worked with and I would be happy to work with him again."
"His professional attitude was greatly appreciated: attention to detail, wanting to understand thoroughly the task assigned to him, highest level of autonomy were the factors that made him stand out in the team. I can recommend him for any developer position and I would love to work again with him in the future."
"Krzysztof is a very efficient, committed front-end developer. He's got excellent expertise in modern front-end web development and is up to date with the latest technologies."
"Not only he carefully picked new technologies, he also teached me a lot of good practices and design patterns. One of his biggest advantages is ability to be a good listiner which makes him a good leader. Give this man a leadership over project and find out on your own how many things he can improve."
Let's Connect
I'm always open to connecting with like-minded professionals. Feel free to reach out or follow my work on these platforms.