Mfon Paulinus

Fullstack Developer with experience engineering scalable web applications and optimizing system performance across fintech and e-commerce platforms. Expertise in designing robust APIs, implementing secure authentication systems, and integrating complex third-party services. Proven track record of improving system reliability by 40% and increasing user transaction rates by 50% through innovative backend solutions and strategic database optimization.

Fullstack Developer - WALLX Diaspora

(2025-04)

• Architected RESTful APIs using Node.js and Express for payment processing systems handling $2M+ monthly transaction volume with 99.9% uptime reliability
• Integrated FiatMatch payment gateway for CAD wallet crediting and SendGrid for automated KYC verification, reducing user onboarding time by 60%
• Optimized MongoDB database performance through strategic query optimization and indexing strategies, achieving 35% reduction in response times
• Collaborated with 8-member cross-functional teams using Git version control and Agile methodologies via Jira, delivering 15+ features with zero production incidents

Fullstack Developer - Freelance/contract

(2023-04)

• Delivered 25+ custom web applications for SMEs and startups across fintech, healthcare, and e-commerce sectors
• Spearheaded development of secure payment processing solutions using Paystack, Flutterwave, and Stripe APIs, handling huge transactions
• Mentored junior developers through code reviews and technical guidance, improving team productivity by 30% across multiple project engagements
• Established automated CI/CD pipeline using docker and cloud deployment strategies, reducing deployment time by 40% and minimizing production error

Fullstack Developer - ITSKILLSCENTER

(2020-02 - 2023-04)

• Developed comprehensive e-commerce dashboard for peppermart project using NextJS and Tailwind CSS, supporting 1000+ daily active users
• Built full-stack blog platform utilizing React, Redux, Node.js, Express, and MongoDB with real-time content management capabilities
• Implemented responsive UI components and state management solutions, improving user engagement metrics by 45%
• Delivered 12+ project milestones within specified timelines while maintaining code quality standards and best practices

Bachelor of Science - Industrial Physics - Federal University of Technology, Owerri (2009-11 - 2014-11)