Solidity Developer

Blockchain Full Stack Engineer

Josiah Six is a skilled Blockchain Full Stack Engineer with a robust background in software development, specializing in blockchain technology, smart contracts, and full-stack development. With a Bachelor’s degree in Computer Science from Mount Vernon Nazarene University, Josiah has honed his technical expertise through hands-on experience at both Innovative Development, LLC, and Mighty Networks.

Josiah has a proven track record in designing and implementing innovative solutions for blockchain and web development projects. He has developed and maintained user interfaces for NFT marketplaces on the Solana blockchain, implemented secure smart contracts using Solidity and Rust, and integrated payment solutions such as Solana Pay and Sphere Pay. His expertise extends to developing dynamic web applications with Laravel and Angular and deploying cloud infrastructure using AWS services.

Notable projects include developing a REST API for Bitcoin inscription off-chain data and collaborating on Ethereum smart contract web apps with modern frameworks like React and Next.js. Josiah is adept with a wide range of technologies, including but not limited to C#, JavaScript, Python, and Typescript, and is familiar with DevOps tools and databases like Kubernetes, Docker, PostgreSQL, and MongoDB.

Driven by a passion for leveraging cutting-edge technology to enhance user experience and security, Josiah is committed to contributing to the evolving landscape of blockchain and software development.

Experience: 5 years

Yearly salary: $12,000

Hourly rate: $70

Nationality: 🇺🇸 United States

Residency: 🇺🇸 United States

Experience

Full Stack Software Engineer

Innovative Development, LLC

2021 - 2024

Developed and maintained the user interface for an NFT marketplace on the Solana blockchain using Next.js, enhancing user experience and engagement. Implemented blockchain integration using Web3.js to facilitate secure transactions and interactions with smart contracts on the Solana blockchain, ensuring high throughput and low latency. Integrated Solana Pay and Sphere pay for crypto and traditional credit/debit card payments. Contributed to the Solidity smart contract behind the NFT marketplace featured createNFT, listNFT, cancelListing, addToCart, burn, and other relevant functions using Rust. Wrote and deployed Solidity smart contracts to manage token swaps, liquidity pools, and yield farming mechanisms. Designed and developed a REST API for storing Bitcoin inscription off-chain data such as collection value, curation, real-time pricing of listed NFTs in terms of ETH/USD, etc.

Backend Developer

Mighty Networks

2020 - 2021

Developed dynamic web applications using Laravel for the backend and Angular for the frontend, ensuring seamless performance and user experience, while implementing unit and end-to-end testing with tools like PHPUnit and Jasmine/Karma, achieving a 20% reduction in bugs post-launch. Devised an Ethereum smart contract web apps using development tools such as Truffle and Hardhat, with React and Next.js as front ends. Developed various smart contracts including masterchief, factory, cross-chain bridge and dex aggregator. Leveraged AWS services including EC2, S3 and the Comprehend API for project infrastructure and functionalities. Used Facebook Graph API and Messenger API to send automated messages to customers, and used Active Admin for the admin panel.

Full Stack Developer

Upwork

2019 - 2020

Optimized app performance by reducing load times by 30% and enhancing memory usage through effective debugging and code refactoring, while implementing in-app purchase systems and push notifications to boost user engagement and drive revenue growth. Architected and implemented a scalable Flutter Core solution for a enhancive Mobile application, boosting users by 7%. Eradicated appearing backend issues in UnoRe and TribeOne as well as presented optimization proposal to improve performance and get them realized. Engineered a backend Restful API system using Node.js and Express.js, enhancing data processing speed by 25% and reducing server response time by 10%, resulting in improved user experience. Constructed a local development environment using Docker 1.9.1 on macOS, incorporating Zend Framework (PHP), MariaDB, and a custom PHP compiler. Created robust CI/CD pipelines using Jenkins and Ansible, automating deployments which decreased manual intervention by 40%.

Skills

golang

react

rust

smart-contract

solana

web3js

solidity

english

Create Profile Hire Solidity Developers