Projects
A collection of blockchain and DLT projects spanning enterprise solutions, open source contributions, and production systems. From carbon credit marketplaces to multi-chain APIs, these projects showcase full-stack blockchain development across various protocols and use cases.
Featured Projects
Cyclesix – Carbon Credits Marketplace
Celfocus
Carbon credits marketplace developed under the Portuguese Recovery and Resilience Plan (PRR), funded by the EU. Creates a transparent, efficient, and decentralized platform to trade carbon credits, supporting environmental sustainability and regulatory compliance.
Key Achievements:
- Built secure smart contracts for carbon credit issuance, trading, and verification
- Implemented Soulbound tokens (ERC4671) for regulatory compliance
- Developed backend services with Azure Functions and PostgreSQL integration
- Employed advanced design patterns including Façade and Observer
Tech Stack:
Blockchain Enterprise Asset
Celfocus
Comprehensive suite of reusable libraries, APIs, configuration files, and deployment strategies designed to seamlessly integrate EVM-based chains and Hyperledger Fabric, providing robust tools for end-to-end blockchain solutions.
Key Achievements:
- Designed reusable blockchain infrastructure components
- Integrated both EVM chains and Hyperledger Fabric in unified toolkit
- Implemented comprehensive API gateway solutions
- Built scalable deployment strategies with Turborepo
Tech Stack:
On-Chain Loyalty Points
Celfocus
Decentralized loyalty points solution using Hyperledger Fabric, funded by NextGenerationEU. Revolutionizes how loyalty points are managed and exchanged with transparent, secure blockchain infrastructure.
Key Achievements:
- Developed Go chaincodes for secure blockchain transactions
- Built Java library for Hyperledger Fabric Gateway client API
- Implemented scalable blockchain solutions for loyalty systems
- Conducted comprehensive testing and security audits
Tech Stack:
BAAS - Blockchain as a Service
Bitfy BWS
Blockchain as a Service platform that revolutionizes business processes by decentralizing operations and ensuring data integrity. Provides infrastructure for digital asset creation, trading, tokenization, and DeFi access.
Key Achievements:
- Built comprehensive BaaS platform architecture
- Implemented multi-chain asset trading capabilities
- Developed NFT creation and management systems
- Created webhook notification system for real-time updates
Tech Stack:
EVM API
Bitfy BWS
Transformative multi-chain API solution that consolidated separate blockchain APIs into a unified interface. Supports Ethereum, BSC, Polygon, Avalanche, and custom Hyperledger Besu chains.
Key Achievements:
- Unified multi-chain API reducing complexity from 5+ APIs to 1
- Implemented comprehensive HSM account management
- Built smart contract lifecycle management tools
- Integrated with multiple block explorers for transparency
Tech Stack:
Bitfy - Crypto SuperApp
Bitfy BWS
100% secure digital wallet with full private key ownership. Features crypto payments, social networking for investors, and seamless integration with traditional payment methods.
Key Achievements:
- Developed secure wallet with private key management
- Implemented crypto payment gateway integrations
- Built social features for investment communities
- Created multi-payment method support system
Tech Stack:
All Projects
Cyclesix – Carbon Credits Marketplace
Celfocus
Carbon credits marketplace developed under the Portuguese Recovery and Resilience Plan (PRR), funded by the EU. Creates a transparent, efficient, and decentralized platform to trade carbon credits, supporting environmental sustainability and regulatory compliance.
Tech Stack:
Blockchain Enterprise Asset
Celfocus
Comprehensive suite of reusable libraries, APIs, configuration files, and deployment strategies designed to seamlessly integrate EVM-based chains and Hyperledger Fabric, providing robust tools for end-to-end blockchain solutions.
Tech Stack:
keccaky
A Gleam library for computing Keccak SHA3-256 hashes using a NIF built with the tiny-keccak Rust crate. Provides efficient cryptographic hashing for functional programming environments.
Tech Stack:
On-Chain Loyalty Points
Celfocus
Decentralized loyalty points solution using Hyperledger Fabric, funded by NextGenerationEU. Revolutionizes how loyalty points are managed and exchanged with transparent, secure blockchain infrastructure.
Tech Stack:
Blockchain Integration Workshops
Bitfy BWS
Technical workshops designed to facilitate blockchain education for back-end and DevOps engineers. Comprehensive workshop series blending theoretical knowledge with practical application for blockchain systems understanding.
Tech Stack:
Blockchain Testnet for Asset Tokenization
Bitfy BWS
Blockchain testnet using Hyperledger Besu designed for asset tokenization exercises. Features QBFT consensus protocol with AWS-based nodes for robust security and scalability.
Tech Stack:
EVM API
Bitfy BWS
Transformative multi-chain API solution that consolidated separate blockchain APIs into a unified interface. Supports Ethereum, BSC, Polygon, Avalanche, and custom Hyperledger Besu chains.
Tech Stack:
BAAS - Blockchain as a Service
Bitfy BWS
Blockchain as a Service platform that revolutionizes business processes by decentralizing operations and ensuring data integrity. Provides infrastructure for digital asset creation, trading, tokenization, and DeFi access.
Tech Stack:
Bitfy - Crypto SuperApp
Bitfy BWS
100% secure digital wallet with full private key ownership. Features crypto payments, social networking for investors, and seamless integration with traditional payment methods.