0xtan1319

Spearheaded full life-cycle software development in multiple software environments. Designed and implemented scalable and efficient backend systems using Node, Java, Golang and Django, and optimized MongoDB and PostgreSQL performance through query optimization, indexing, and normalization. Wrote 20+ lambda functions in Node.js/Python to AWS Lambda with API Gateway and Cloud Formation. Completed frontend projects as well, using Next, Nuxt and migrated old Angular projects to recent versions. Engineered, validated, and released secure smart contracts on various blockchain platforms, especially on EVMs and Solana. Successfully released 24+ contracts. Integrated Web3 on both front-end and back-end side using Ether.js, Web3.js. Conducted security audits and resolved vulnerabilities in smart contracts, back-end, as well as mobile programs. Ensured the safety of sensitive data and prevented potential security breaches. Led the development process of 5+ web2 and blockchain-related projects and mentored 2 junior developers. Successfully completed all projects on time and within budget.

Stayed current with emerging technologies and developed 10+ mobile applications. Designed, developed, and deployed 20+ full-stack web applications tailored to the business objectives and needs of various clients using Angular, React, Vue, Express, MySQL, PostgreSQL, and MongoDB. Led the successful migration of an existing monolithic app from Python 2x and Flask to Python 3.x and Django, resulting in improved performance and compatibility. Additionally, accelerated future schema migrations by 30% through the implementation of optimized SQL scripts. Worked as a part of a team on several Spring and Angular projects, developing new features, as well as fixing bugs and optimizing performance. By implementing SEO techniques in a React application with server-side rendering (SSR) using Next.js and Gatsby, successfully boosted page views per session by 23% for an e-commerce site with a catalog of 20,000+ products. Performed test and audit for 12+ projects across the Netizens codebase, ensuring data safety and system performance.

Developed and implemented a new feature set for an e-commerce platform, leading to a 15% increase in user engagement. Optimised website code for mobile devices, achieving a 25% improvement in page load times. Initiated weekly code reviews, reducing bug rates by 20% and fostering a culture of collaboration and continuous improvement. Collaborated on a team of 5 to redesign a client's website, which boosted the client's online sales by 30% within the first three months. Led a project to integrate an analytics solution, enhancing data-driven decision-making and capturing critical user behavior insights. Spearheaded the migration of legacy HTML/CSS to a modern React-based stack, resulting in improved maintainability and scalability.

Assisted senior designers in creating wireframes and mockups, which were praised for their clarity and aesthetic appeal. Participated in the development of a social media integration plan, seeing a 50% increase in user interaction. Contributed to a team of 4 in revamping a local non-profit's website, enhancing public image and volunteer sign-ups by 200%. Helped launch a multimedia marketing campaign by providing technical support and ensuring seamless user experiences across all platforms.