Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

Senior Full-Stack Web Developer with 16+ years of experience building and maintaining scalable enterprise web applications and cross-platform mobile solutions. I specialize in secure, high-performance development across modern frontend and robust backend systems. I enjoy partnering with stakeholders and cross-functional teams to modernize legacy systems, integrate third-party services, and deliver user-friendly UI/UX improvements that help organizations run more efficiently and better engage users.…Senior Full-Stack Web Developer with 16+ years of experience building and maintaining scalable enterprise web applications and cross-platform mobile solutions. I specialize in secure, high-performance development across modern frontend and robust backend systems. I enjoy partnering with stakeholders and cross-functional teams to modernize legacy systems, integrate third-party services, and deliver user-friendly UI/UX improvements that help organizations run more efficiently and better engage users.

Oluwaseye Ogunkoya

Full Stack Developer, Web Developer, Back-End Developer, +2





Senior Full-Stack Web Developer with 16+ years of experience building and maintaining scalable enterprise web applications and cross-platform mobile solutions. I specialize in secure, high-performance development across modern frontend and robust backend systems. I enjoy partnering with stakeholders and cross-functional teams to modernize legacy systems, integrate third-party services, and deliver user-friendly UI/UX improvements that help organizations run more efficiently and better engage users.…Senior Full-Stack Web Developer with 16+ years of experience building and maintaining scalable enterprise web applications and cross-platform mobile solutions. I specialize in secure, high-performance development across modern frontend and robust backend systems. I enjoy partnering with stakeholders and cross-functional teams to modernize legacy systems, integrate third-party services, and deliver user-friendly UI/UX improvements that help organizations run more efficiently and better engage users.

Available to hire

Senior Full-Stack Web Developer with 16+ years of experience building and maintaining scalable enterprise web applications and cross-platform mobile solutions. I specialize in secure, high-performance development across modern frontend and robust backend systems.

I enjoy partnering with stakeholders and cross-functional teams to modernize legacy systems, integrate third-party services, and deliver user-friendly UI/UX improvements that help organizations run more efficiently and better engage users.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Advanced

Work Experience

Senior Web Developer at University of Maryland, College Park

January 1, 2021 - Present

Designed, developed, and maintained enterprise-level web applications and mobile applications supporting university operations and digital initiatives. Developed scalable, secure, and high-performance solutions using PHP, JavaScript, Laravel, React.js, Vue.js, Next.js, and Flutter. Modernized legacy systems using Docker-based deployment and improved application architecture. Optimized performance and scalability, strengthened security through secure coding practices, and integrated third-party services such as payment gateways and analytics platforms. Delivered UI/UX improvements to enhance engagement and accessibility, collaborated with stakeholders and technical teams, supported reporting through database report development, and performed ongoing application maintenance and security updates.

Senior Web Developer at Marriner Marketing

September 1, 2020 - January 1, 2021

Developed custom WordPress and Drupal themes, plugins, and enterprise CMS solutions. Built scalable backend functionality using PHP, SQL, and JavaScript. Enhanced performance, security, and cross-browser compatibility for client applications and websites. Worked with UI/UX designers and project managers to deliver responsive, user-friendly experiences. Conducted application maintenance, security patching, and feature enhancements across multiple client projects; mentored junior developers; contributed to code reviews and implemented best practices for quality and maintainability.

Web Developer at Marriner Marketing

February 1, 2017 - September 1, 2020

Developed and maintained dynamic CMS-based websites using WordPress, Drupal, and custom technologies. Gathered requirements with clients and teams and delivered tailored web solutions. Designed responsive user interfaces, wireframes, and interactive prototypes to improve customer experience. Improved frontend performance and functionality through ongoing feature enhancements. Assisted with testing, debugging, and deployment to ensure high-quality software delivery.

Freelance Web Developer / Mobile Developer at Freelance (Code mentor, Fiverr)

June 1, 2016 - February 1, 2017

Delivered custom web applications and cross-platform mobile solutions for international clients. Built responsive WordPress websites and integrated secure Stripe payment gateway solutions. Provided technical consulting, application support, and development mentoring to clients and students. Produced scalable solutions following best practices for performance, security, and maintainability, and delivered within tight deadlines while maintaining strong client satisfaction.

Freelance Web Developer / Mobile Developer at Freelance

June 1, 2016 - February 1, 2017

Delivered custom web applications and cross-platform mobile solutions for international clients via freelance platforms including Code mentor and Fiverr. Built responsive WordPress websites and integrated secure Stripe payment gateway solutions. Provided technical consulting, application support, and mentoring to clients and students. Ensured performance, security, and maintainability by following industry best practices while delivering projects on tight deadlines with high client satisfaction.

Solutions Architect / Web Developer at Graystone Technologies

March 1, 2011 - June 1, 2016

Designed scalable software architectures and developed enterprise web applications using modern development practices. Improved software quality through testing processes, performance enhancements, and code optimization. Collaborated with cross-functional teams to resolve complex development challenges and deliver reliable business solutions. Authored application architectures to improve maintainability, scalability, and long-term system performance. Contributed to in-house project delivery for multiple internal development initiatives.