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GiottoChain SaaS

Event-driven AWS platform providing document digest anchoring, blockchain anchoring, cryptographic aggregation, and Chainpoint proof generation.

Company
Almaviva S.p.A.
Period
2020 - 2025
Experience
Senior Blockchain Engineer
  • Node.js
  • Angular
  • MongoDB
  • Solidity
  • Web3.js
  • Ethers.js
  • AWS API Gateway
  • AWS Lambda
  • Amazon SQS
  • Amazon EventBridge
  • Amazon DynamoDB
  • Amazon S3
  • Amazon CloudWatch
  • Amazon EC2

Context

GiottoChain SaaS is a cloud-native blockchain notarization platform built on AWS using an event-driven architecture. It provides services for document digest notarization and blockchain anchoring, allowing organizations to produce independently verifiable cryptographic proofs while strengthening the integrity of private blockchain networks.

Contribution

I contributed across backend development, frontend applications, cloud architecture, smart contracts, and blockchain infrastructure, participating in the design and evolution of multiple platform services.

Technical Scope

  • Designed and implemented cloud-native services using API Gateway, Lambda, EventBridge, SQS, DynamoDB, S3, CloudWatch, and EC2.
  • Developed Solidity smart contracts supporting both document notarization and blockchain anchoring services.
  • Implemented asynchronous event-driven workflows coordinating platform services.

Digest Anchoring

The digest anchoring service received cryptographic document digests through REST APIs and processed requests asynchronously. Multiple notarization requests gpt aggregated before being anchored on a public blockchain, significantly reducing transaction costs while preserving independent cryptographic proofs. Each completed request generated a Chainpoint receipt that could later be used to verify the proof of existence.

Blockchain Anchoring

The blockchain anchoring service periodically anchored blocks from permissioned blockchain networks onto a public blockchain. Using a dedicated smart contract, each anchoring transaction stored the block number, block hash, network identifier, and node identifier. By comparing anchors submitted by multiple participating nodes, the platform enabled independent verification of blockchain consistency and helped detect unauthorized history modifications or other malicious behavior.