6000 Brazos Ave, EL Paso, Texas
Date of birth 01/14/1998
Samoan
Languages
Samoan

Native

English

Fluent

Interests
Tennis
Table tennis

Piano
Social networks
@live:.cid.f3c6eb203505e3ed
@james980114
@rizzolib

James Ybarra

Full stack & blockchain dev
As a lead full-stack and blockchain developer with 7 years of development experience and 5 years focused on blockchain technology, I specialize in EVM protocols, Solana dApps, Bitcoin ordinals, BRC-20 and runes tokens. I have a strong background in decentralized finance, NFT platforms, and blockchain gaming.
Work experience
Lead Full Stack & Blockchain Engineer
From July 2023 to March 2024
Hive Social Inc Menlo Park, CA

  • Developed an L2 blockchain using the OP Stack, implementing performance optimizations to enhance speed and scalability. Containerized the Sequencer, Validator, and Batcher clients with Docker, streamlining deployment and usability for end-users.

  • Designed and architected a feature-rich gaming, rewards, and NFT pack platform for a major sports league, driving fan engagement.

  • Implemented a rewards staking mechanism within the NFT ecosystem, encouraging user participation and retention.

Senior Blockchain Engineer
From December 2022 to March 2023
Kadena Okinawa, Japan

  • Blockchain Architecture Optimization: Worked extensively with Kadena's Chainweb protocol, improving network scalability and optimizing multi-chain interoperability.

  • Community Engagement & Thought Leadership: Actively contributed to Kadena’s open-source community, providing technical insights and documentation. Presented innovations at meetups and conferences.

  • Leadership & Mentorship: Guided junior developers through code reviews, best practices, and complex blockchain problem-solving.

Blockchain Developer
From April 2021 to September 2022
Radix Scottsdale, Arizona US

  • Smart Contract Development: Designed, developed, and deployed smart contracts using Radix’s native platform and tools.

  • DeFi Solutions: Developed decentralized finance (DeFi) components and protocols, improving interoperability and token economics.

Lead Full Stack Engineer
From October 2020 to February 2021
Pleo Copenhagen, Denmark

  • Utilized Agile methodologies to manage project timelines and deliver high-quality software solutions, contributing to a 14.8% increase in team productivity.

  • Built microservices Directed Acyclic Graph (DAG) triggers using Airflow.

Web Developer
From March 2020 to September 2020
Fivetran Oakland, California

  • Connected the website frontend using RESTful APIs, Axios, and GraphQL to showcase live data.

  • Implemented SEO best practices, including the use of meta tags and structured data.

Web Developer intern
From December 2019 to February 2020
Pipedrive Mustamäe Tallinn

  • Implemented a responsive landing page using HTML5, CSS3, and JS, improving page load time

  • Integrated RESTful APIs to display real-time data on a several pages

Education
Bachelor's degree in Information Technology
From September 2016 to November 2019
Niigata Computer College 3-chōme-1-53 Yoneyama, Chuo Ward, Niigata, 950-0916, Japan
Certified Scrum Master
From May 2017 to May 2018
Skills
Full Stack Development

Next.js, React, Vue.js, Angular, Node.js, Rust, Ruby on Rails, Python, JS/TS, Amazon Web Services (AWS), Docker, Heroku, Mysql, Postgres, MongoDB


Blockchain development

Bitcoin, Ethereum, Solana, Ordinal, Rune, Solidity, Rust, Anchor, Smart contract, NFT/FT, Assembly Script