Senior Full-Stack Developer | DevOps-Oriented | Security-Focused Web Applications

Juan Cadima

Senior Full-Stack Developer with 10+ years of experience building secure, high-performance custom web applications. Specializing in full-stack development while expanding expertise in infrastructure management and DevOps practices. Proven track record in developing custom Content Management Systems (CMS), Customer Relationship Management (CRM) systems, and e-commerce platforms with strong attention to performance, scalability, and security. Skilled in Linux server management, cloud environments, and containerized deployments with Docker, currently implementing CI/CD pipelines and automation practices to improve development workflows and deployment reliability. Experienced collaborating with businesses of all sizes—from small agencies to mid-sized enterprises—to solve complex challenges and deliver robust digital solutions with reliable infrastructure foundations.

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Portfolio Highlights

My background in developing custom CMS and CRM systems has honed my ability to solve complex problems with clean, efficient code, always focusing on performance and maintainability.

PHP Micro Framework

A simple and lightweight PHP Framework for personal and learning purposes

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WireCMS

A custom Laravel Content Management System, fully reactive backend functionality with Livewire

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IMGrly

Generate placeholder images instantly and more. Built for developers, designers, and content creators.

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No Site Radar

Discover untapped opportunities in your area. Generate instant lead lists of local businesses that need your web services.

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U2C Mobile

Complete Content Management System with API integrations

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U2C Mobile Lifeline

Complete Content Management System with API integrations

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Areas of Proficiency

With extensive experience in backend development, I specialize in designing and building secure, scalable, and high-performance web applications tailored to diverse business needs. Proficient in PHP, Laravel, and Livewire, I have developed custom CMS and CRM solutions with hardened authentication, secure API integrations, and compliance-ready logging. Skilled in API design, database architecture, and containerized deployments using Docker, I apply DevSecOps principles to ensure consistency, resilience, and security across development, staging, and production environments

Secure Web Application Development

Specializing in building dynamic, scalable, and security-hardened web applications, including custom CMS, CRM systems, e-commerce platforms, and seamless API integrations. With expertise in both backend and frontend development, I deliver high-performance solutions that prioritize data protection, performance, and user trust. Using modern frameworks and security best practices, I ensure applications are not only fast and responsive but also resilient against common vulnerabilities such as SQL injection, XSS, and CSRF.

Database Architecture & Data Management

Designing and developing efficient, scalable database solutions for complex applications. Expertise includes schema design, query optimization, and implementing proper access controls to ensure data integrity and security. I build data architectures that meet current operational needs while supporting future growth, focusing on performance optimization and reliable data management practices that align with industry standards.

Server & Infrastructure Management

Managing and optimizing server infrastructure across VPS, cloud, and containerized environments with a focus on reliability and performance. Skilled in Docker containerization, Nginx configurations, and deployment automation. Experienced in SSL/TLS implementation, system monitoring, automated backups, and server optimization to ensure consistent uptime and system performance. I deliver infrastructure solutions that are scalable, cost-effective, and built with solid operational practices.

API Design & Integration

Designing and implementing scalable APIs that enable reliable communication between systems and applications. Specializing in RESTful architecture, third-party API integrations (e.g., payment gateways, analytics, social media APIs), and modern authentication protocols such as OAuth2 and JWT. Focused on delivering well-structured APIs that follow industry best practices, ensuring efficient data exchange and seamless system integration.

Custom Web Applications and SaaS Solutions That Drive Business Growth

I design and build high-performance web applications and SaaS platforms that solve real business challenges. From concept to deployment, I focus on creating scalable, reliable solutions that help your business thrive in today's competitive digital landscape.

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