Web Developer United States

Sean Lancaster

Senior Web Developer Full-Stack Development

*.*.*******@*****.*** https://www.linkedin.com/in/sean-lancaster-998792352 Tempe, Arizona, 85282, United States 734-***-****

Results-driven Senior Developer with 8+ years of experience in web and mobile application development. Expertise in Node.js, React, TypeScript, and agile methodologies. Skilled in RESTful APIs, GraphQL, cloud technologies, and mentoring junior developers to enhance team growth. Work Experience

Senior Software Developer Dec 2023 - Present

Uncommon Analytics Woodbridge, Virginia, United States Full Stack Developer Sep 2021 - Nov 2023

Vention New York, New York, United States

Web Developer Apr 2019 - Aug 2021

TWST Events New York, United States

Projects

SermonAI Jun 2024 - Nov 2024

SermonAi revolutionizes sermon prep by offering pastors a side-by-side research and writing platform, akin to having a savant in biblical history, theology, original languages, and culture right beside you. This next-generation tool allows for easy conversation, as if speaking to a friend, providing instant access to a wealth of knowledge and insights. It eliminates the daunting blank page, fueling inspiration with outlines, templates, and illustrations to vividly bring your message to life.

Afterlib Aug 2023 - Feb 2024

Very powerful AD scrape and spy tool Worked as a Full Stack developer and played a key role in migrating Afterlib v1 (PHP based) to v2 (React + Node + PostgreSQL) Afterlib is like the upgraded Meta Ad Library, providing deeper insights into ads and competitor activities. Developed years ago for internal use, these features help identify winning products, creative ads, and strong competitors. Afterlib is the most advanced tool for product research and competitor analysis, offering unparalleled insights.

Juice Plus+ Jan 2023 - Sep 2023

Juice Plus+ delivers concentrated plant-based nutrition that helps you bridge the gap between what you should eat, and what you do eat, every day.

Nevermore Token Pre-Sale Aug 2022 - Nov 2022

ERC-20 was selected as the token standard, and the token's smart contract code was written in Solidity. The smart contract was tested in a test network environment (Sepolia) and its functionality and security were verified. The smart contract was also deployed to the blockchain using the Remix tool. React was used for the front-end in developing the staking app. We developed a staking smart contract to manage staking operations, made it possible to calculate rewards according to the staking period, and implemented a function that allows users to withdraw staked tokens and earned rewards. The smart contract and application were audited by Coinspect. This pre-sale was successfully completed in 2 minutes. Administrators owned 20 ETH during the pre-sale period. Vention NFT Marketplace May 2022 - Sep 2022

The core of the solution is a private EVM-based blockchain deployed on AWS. Built for internal use, this centralized platform is managed by Vention as the sole regulator. Its key components include: The blockchain: a secure host for all operations; Custom tokens: used as the internal payment method; Smart contracts: automate token transfers and ensure seamless transactions. Since the project was funded by Vention, a centralized blockchain model was the most efficient approach.

DeFi TankLand Oct 2021 - Apr 2022

Development of a gaming website that runs on the blockchain. The game app, user front-end, back-end, and blockchain smart contract were developed separately, and the platform was designed to run on the Ethereum network, a public blockchain.

Core Skills

Javascript, TypeScript, React, Vue.js, Web3.js, Next.js, API Development, PHP, Laravel, Node.js, Python

(Programming Language), AWS, Git, Blockchain, SQL, MongoDB Education

University of Phoenix Apr 2015 - Mar 2019

Bachelor of Science - BS Information Technology

GPA: 3.6

Languages

English (NATIVE_OR_BILINGUAL)

Certificates

AWS and React: Creating Full-Stack Apps (LinkedIn)

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