Gennaro

Full Stack Software Engineer

Freelance • Freelance

Mar 2020 - Present • 6 yrs 7 mos

Designed, developed, and maintained web applications and custom software solutions, working across frontend interfaces, backend services, databases, and API integrations. Built responsive user interfaces using React.js, Next.js, and TypeScript, and implemented backend functionality using Node.js, PHP, and Python where appropriate. Worked on application architecture, authentication, role-based access control, database design, REST API development, and third-party integrations. Troubleshot complex technical issues, improved application performance, and contributed to testing, deployment, and ongoing maintenance. Focused on clean code, security, scalability, and maintainable software architecture while collaborating with stakeholders to translate business requirements into practical technical solutions.

Software Engineer — Business Systems & Enterprise Applications

Fiverr • Freelance

Jan 2026 - Jan 2026 • 0 mos

Contributed to the development and customization of business software designed to streamline operations and improve workflow efficiency. Worked on interconnected application modules involving customer relationship management (CRM), enterprise resource planning (ERP), point-of-sale (POS), inventory management, warehouse operations, employee management, and reporting dashboards, according to project requirements. Implemented business logic, database relationships, user permissions, API integrations, data validation, and automated workflows. Investigated application bugs, optimized database queries, and improved existing features to support reliable data processing and consistent system behavior. Collaborated with project stakeholders to understand operational requirements, plan technical solutions, test functionality, and maintain software quality throughout the development lifecycle.

Full Stack Developer — SaaS & Custom Software Solutions

LinkedIn • Freelance

Jun 2025 - Jul 2025 • 1 mo

Developed custom web applications and SaaS solutions, contributing to projects from initial requirements analysis through implementation, testing, and deployment. Built reusable frontend components, backend services, administrative dashboards, and database-driven features using technologies suited to each project's requirements. Worked on multi-module applications, authentication systems, REST APIs, external service integrations, and data management workflows. Contributed to MVP development, application improvements, debugging, performance optimization, and technical documentation. Where required, supported AI feature integrations and automation workflows. Focused on delivering reliable functionality, maintainable code, responsive interfaces, and scalable foundations. Worked with team members and stakeholders to clarify requirements, solve technical challenges, and develop software aligned with business objectives.