l
liss_domguez

Lissette A

@liss_domguez

Backend Developer Enterprise Blockchain

Mexico
Spanish, English
About me
Backend Engineer specializing in enterprise blockchain and distributed systems. I build secure Hyperledger Fabric networks, Solidity smart contracts, TypeScript chaincode, and scalable REST APIs. Experienced with AWS, Kubernetes, Docker, SQL, identity management, RBAC, and private data collections. My expertise is demonstrated through production-grade portfolio projects, including AutoVault, a Decentralized Oracle System, and a Car Rental Token Platform, showcasing practical problem-solving, infrastructure debugging, and enterprise software development.... Read more

Skills

l
liss_domguez
Lissette A
Offline • 
Average response time: 1 hour

See my services

API & Integrations
I will develop enterprise blockchain and backend applications
From$40 / projectMore details

Work experience

Freelancer

Inventory Systems Developer. Retail Business Tobacco, Mezcal, Coffee & Spirits

Freelancer • Freelance

Jul 2026 - Aug 2026 • 1 mo

• Engaged by a retail business owner to redesign an existing MySQL-based inventory and point-of-sale system suffering from poor product searchability and inflexible pricing logic. • Extended the existing database schema to support fractional-unit sales (e.g., grams instead of fixed kilogram units) and configurable discount rules, preserving existing data rather than migrating to a new database. • Architected a new containerized backend service (Node.js/Express, Docker) to interface with the existing database, enabling real-time discount application and fractional-quantity transactions. • Improved product search and catalog organization to resolve day-to-day usability issues for store staff