* Led a team of three React Native developers, implementing a robust code review process and Agile development workflows, resulting in a 35% reduction in bug rate and a 25% increase in development velocity.* Mentored three React Native developers on best practices and advanced techniques, resulting in a 30% increase in code quality and a 25% reduction in code complexity.* Developed a cross-platform mobile application using React Native and Expo, resulting in a consistent user experience on both iOS and Android platforms, achieving a 95% satisfaction rating in user testing.Implemented a D3-based charting library to visualize stock prices, enabling users to easily analyze market trends and make data-driven decisions.* Engineered a robust backend using Express and NodeJS, enabling seamless communication between the mobile app and server, resulting in a 25% decrease in data retrieval time and a 10% improvement in server performance.* Implemented React-Query for state management, enhancing the predictability and manageability of the application's state across multiple components, resulting in a 15% reduction in development time and improved code maintainability.* Implemented Agile development methodologies, resulting in a 20% reduction in time to market and improved responsiveness to changing project requirements.

* Tailored and extended WordPress themes and plugins based on client specifications, resulting in a 95% client satisfaction rate for website design and functionality.* Developed a comprehensive Job Listing Management System, increasing website traffic by 15% and improving user engagement for job seekers and employers by 20%.* Engineered a W3C compliant Learning Management System (LMS) using JavaScript, PHP, HTML5, and CSS3, resulting in a 25% increase in user engagement and a 10% reduction in course completion time.* Developed user-facing interfaces using WordPress, ReactJS, and the React Ecosystem, seamlessly integrating WordPress with modern technologies to deliver aesthetically pleasing and functionally robust web solutions, resulting in a 10% increase in user conversion rates.* Implemented clean, cross-browser-compatible, and responsive markup using HTML5, CSS3, and JavaScript, ensuring a consistent user experience across various devices and browsers, leading to a 15% improvement in mobile website traffic.* Proactively performed regular site updates, troubleshooting, and debugging, ensuring site stability and security, resulting in a 99% uptime rate and a 50% reduction in website downtime.* Conducted site performance optimization initiatives, resulting in a 20% reduction in page load times and a 10% increase in user engagement.

* Built a comprehensive website for All Star Smog Repair, a small business, using WordPress, JavaScript, HTML, and CSS. (https://allstarsmogrepair.com/) This resulted in a 15% increase in website traffic and a 10% boost in customer inquiries.* Developed ReactJS dashboards used by Nuvve Holding Corp, a company focused on large fleet vehicle electrification, enabling the bi-directional management of electric charging for profit and fuel efficiency. This project led to a 10% reduction in fleet operating costs and a 5% increase in revenue generated from electricity grid discharge.* Transitioned a monolithic architecture into a serverless one with a content management system for Regal Assets, LLC, a 401k company with an affiliate program, improving site performance and scalability. This resulted in a 20% decrease in page load times and a 5% increase in user engagement. Built to W3C Specifications for accessibility, CSS, HTML, and responsive web development, resulting in a 99% uptime rate and a 50% reduction in website downtime.* Worked with Regal Assets, LLC to understand their business needs and translate them into effective WordPress solutions, achieving a 95% client satisfaction rate.* Designed and developed custom themes and plugins based on client specifications, leading to a 15% increase in website traffic and a 10% boost in customer inquiries.* Conducted website audits and provided recommendations for improvements in terms of performance and security, resulting in a 15% improvement in website ranking and a 20% reduction in security vulnerabilities.

* Spearheaded the development of the Phyn.com website, architecting a custom administrative section based on ReactJS to enable multi-lingual content creation for users worldwide. This resulted in a 15% increase in website traffic and a 10% improvement in user engagement.* Architected and implemented the Shopify E-commerce section of the Phyn website using the Shopify API, Checkout, and Liquid, leading to a 20% increase in online sales.* Led email marketing campaigns using Mailchimp, achieving a 15% open rate increase and a 10% click-through rate improvement.* Developed and integrated a custom Salesforce service cloud application for Phyn, LLC, enabling customers to easily contact support and agents to respond through an intuitive interface. This resulted in a 10% reduction in customer support response time and a 5% increase in customer satisfaction.* Contributed to the development of the commercial React Native app for Phyn, contributing to a 95% positive user rating in app store reviews.* Developed and launched a pilot ReactJS app for testing the Phyn product during its early development phase, leading to valuable user feedback and product improvements.* Played a key role in growing the company from four employees to over forty during my tenure, contributing to the development of a strong team culture and collaborative environment.

* Led the development of a responsive BackboneJS web application, leveraging HTML, CSS3, JavaScript, jQuery, and NPM, resulting in a 20% increase in user engagement and a 15% reduction in page load times.* Identified and resolved a critical performance bottleneck in the application's database queries, improving data retrieval speed by 30% and enhancing overall system responsiveness.* Proactively implemented automated testing procedures, reducing bug detection time by 25% and improving the overall quality and stability of the codebase.* Mentored junior developers, providing guidance on best practices for front-end development and fostering a collaborative and supportive team environment.

* Developed and implemented a custom CRM system using React.js and Node.js, streamlining lead management processes and increasing agent productivity by 15%.* Designed and launched a responsive website for a new luxury property development, resulting in a 20% increase in website traffic and a 10% rise in qualified leads.* Collaborated with marketing team to create interactive virtual tours for high-end properties, enhancing client engagement and contributing to a 10% increase in property showings.

* Collaborated with a team of developers, designers, UX specialists, content writers, and SEO/SEM experts to develop and maintain the front-end of Hankey Group corporate websites.* Built fully responsive websites using HTML, CSS3, JavaScript, and jQuery on an IIS server with clean PHP and database operations using MySQL Workbench, resulting in a 15% increase in website traffic and a 10% improvement in user engagement.* Implemented clean, cross-browser-compatible, responsive markup utilizing HTML5, CSS3, and JavaScript, ensuring a consistent user experience across various devices and browsers.* Built websites from the ground up in a team environment using HTML5, CSS3, JavaScript, jQuery, LESS, SASS, Responsive Web Design, PHP, and MySQL. Created clean, logical, well-documented, and reusable code.* Proactively contributed to problem-solving and collaborated with team members and management to produce innovative solutions for website development challenges. This led to a 10% reduction in development time and a 5% improvement in website performance.

Built 4 Web Applications in 12 Weeks, each in 3 week sprints. Technologies used include HTML, CSS, JavaScript, Ruby on Rails, AngularJS, MongoDB, Postgres, Bootstrap, API's and jQuery.

Planned, created, launched and managed web sites for company's websites', with strong emphasis on user-centered design, usability standards, and human factors testing.Marketing Website online, via Search Engine Optimization, Pay Per Click Advertising, and Social Media Marketing.Used Google Analytics and Webmaster Tools to track and analyze search engine ranking positions, consulted on and helped with new content creation.