Claudia Barceló Email & Phone Number

Madrid, Es

• Contributed to the Development of OSX Protocol new version 1.4.0, a DAO framework that enables the creation of custom DAOs with various governance models. • Led efforts in maintaining, optimizing, and refining the protocol core components, and its associated plugins, ensuring robust performance and scalability.• Developed several npm packages designed to facilitate interaction with OSX contracts and streamline deployment processes.• Conducted in-depth research on OpenZeppelin, Zodiac, and Llama permission managers, gathering valuable insights to enhance OSX’s permission management system.• Architected and implemented a new governance plugin for OSX that enables proposals to progress through multiple governance stages before final approval, allowing for more complex and flexible DAO governance workflows.• Improved, fixed, and maintained the protocol's subgraph, optimizing data indexing and retrieval for better performance and reliability across the ecosystem.• Implemented unit, integration, regression, and upgradeability tests, ensuring the robustness of custom plugins.• Performed internal audits on custom plugins, ensuring their readiness for external audits and production deployment.

Madrid, Community Of Madrid, Spain

• Developed Smart Contracts for connecting banks broadly to provide intraday operations and implemented CBDC on private blockchains.• Designed and created interfaces to describe behaviors and libraries to extend the default datatypes focused on understanding the Solidity inheritance.• Increased security by managing roles and permissions in the Smart Contracts and making the Smart Contracts upgradeable using proxies, following EIP1967.• Used Golang to communicate the Smart Contracts and Geth to create private blockchains and orchestrate the system.• Automated the testing process to keep Smart Contracts functional and secure.• Proposed the use of Hardhat instead of Truffle reducing significantly the pipeline runtime and improving the simplicity of the test.• Implemented a Hardhat plugging (hardhat-c3-linearization) to facilitate managing circular dependencies issues and to simplify the contracts inheritance graph.• Used Solidity with Hardhat and Truffle to develop Smart Contracts, JavaScript with web3.js, and ether.js to automate unit and integration tests and followed best practices and design patterns to generate extensible and maintainable code.

Developed Smart Contracts for decentralized apps using mainly Solidity with HardHat and JavaScript. - Used Openzeppelin tokens (ERC20, ERC721, ERC777, ERC1155) and Governor contracts, adjusting them to solve specific problems and following the Ethereum Improvements Proposals. - Designed and implemented solutions to recreate the needed features testing them on Test Nets like Kovan, Rinkeby, Ganache, and Mumbai. - Enhanced existing solutions making them upgradeable using proxies (UUPS Proxy, and Beacon Proxy) and using Oppenzepelin Upgradeable contracts version. - Included Chainlink Oracles, Price Feeds on-chain oracles usage on solutions to integrate them to retrieve off-chain information. - Automated the testing process to keep Contracts functional and secure. - Researched the latest improvements and updates and used best practices and design patterns to generate extensible and maintainable code.

Nueva Jersey, Estados Unidos

Salesforce Architect- Working on the frontend development side: - Making Lightning Web Components, Aura Components, and Visualforce Pages UI/UX. - Using SLSD (Salesforce Lightning Design System) as a component library. - Creating custom layouts and other functions page (details view, records view, wizards, etc.)- > Working on Sales, Customer, and Operations teams.- > Making integrations using REST and SOAP endpoints and callbacks (synchronization with backend dashboard).- > Creating new Home and App Pages.- > Managing Permission sets, user Permissions, and Roles. -> Integrating external libraries to Salesforce- > Creating Apex classes, and triggers, and refactoring them to improve code performance- > Using best practices and technologies - Working with CI/CD and Jenkins, code coverage tests, and unitary tests. - Agile development using SCRUM, Kanban, and Jira. - Using design patterns such as Abstract factories, Singleton, Bulk State Transition, etc, and SOLID, DRY, KISS, and YAGNI principles.Working in a solid team, getting involved in different steps of the development process like analysis, design, development, and testing of the product. Dealing with our customer feedback and new requirements. And co-working with the entire team (salesforce, backend, and frontend developers) to accomplish client satisfaction.

Cuba

Worked on several projects Blockchain-related in the Ethereum network, mostly on researching and learning about Blockchain Technology and the Bitcoin and Ethereum environment. - Researched the Blockchain usage and the application in real problems. - Analyzed Ethereum Blockchain architecture and the data structures it uses. - Mastered the different Consensus rules approach (Proof of Work, Proof of Stake, Proof of Authority, Proof of History) and their pros and cons. - Learned about Ethereum Network, Defi, and tokens (ERC20, ERC721, ERC1155). - Designed and built an NFT marketplace, and explored existing approaches (OpenSea).

Cuba

Frontend Developer using Angular7, PrimeNg- Creating user-friendly view pages to show requirements and functionalities.- Creating user-friendly pages to show reports- Developing recurrent components to structure the project- Unit Tests with mock and Integration tests and QA- Discussing and attending to client requirementsBackend Developer using Spring Boot- Creating services and microservices to develop some functionalities.- Creating Repositories, Models, Controllers, Services, and DTOs.- Analyzing and structuring a big problem to choose better architectures.- Dealing with clients and analysts to find client requirements.

Aplicated Maths and Heuristics Researcher- Researching heuristics to solve The Vehicle Routing Problem and its different versions.- Analyzing the VRP model in each version.- Studying some of the basic heuristics used to solve this problem ( Ant colony, Simulated annealing, etc)- Defining heuristics elements to build Hyperheuristics- Building a metaheuristics language in Common Lisp to build Heuristics and Metaheuristics

Cuba

Numeric Maths