I'm Stephen Melendez
I build and maintain quality applications, ensuring they are functional and efficient.

Professional Expertise
A comprehensive overview of the technologies and methodologies I leverage to build scalable and intelligent solutions.
Web Fundamentals
Frontend Frameworks
Design & Styling
Professional Journey
My career path focused on building robust applications and leading technical initiatives.
- Architecting and developing high-performance data analysis platforms using React and Next.js, integrated with Python (Flask/FastAPI) backends.
- Designing and implementing autonomous AI agents to automate complex data processing tasks and business workflows.
- Developing sophisticated statistical models and interactive dashboards for advanced data visualization and business intelligence.
- Optimizing operational efficiency by automating repetitive tasks through custom microservices and AI-driven solutions.
- Leading the integration of Large Language Models (LLMs) and Generative AI into enterprise-level applications.
- Development and maintenance of applications in Android (Java/Kotlin), Java, C#, Python, and JavaScript.
- Creation and consumption of API Restful and SOAP web services, and integration with third-party APIs like Google Maps and Firebase.
- Leading projects for mobile and web applications, web services, data science, and desktop applications.
- Implementing specialized consulting for clients in the financial, energy, and governmental sectors.
- Providing technical support, adapting to continuous deployments, and creating pipelines.
- Development of applications for the financial and management sector (invoicing, inventory, etc.).
- Installation and implementation of application servers like Apache Tomcat, Payara, and Node.js.
- Migration of UI/UX to websites and web applications using Bootstrap, Material Design, and Foundation.
- Development of complex reports with on-screen filters, functioning like a Data Warehouse.
- Use of PHP to export to formats like Word, PDF, and Excel.
- Frontend implementation with HTML, CSS, JQuery, and libraries like Datatables and SweetAlert2.
Certifications & Training
My continuous commitment to learning and staying at the forefront of technology.
AI Development Initiation Course
BIG school
PMP Project Management - Fundamentals
Alison
Java University (Complete Mastery)
Udemy
Fullstack JavaScript Developer
Udemy
Certificate C#
Sololearn
Data Science with Python
CONEXION El Salvador
Scrum Fundamentals Certified
Sprint Agil
React + Redux Professional Course
Sololearn
Featured Projects
High-performance technical solutions engineered for scale, reliability, and precision.
Development of energy sector projects including occupational safety, census, and compensation systems, fully deployed in the cloud.
Pension and savings system development, modernizing legacy applications and implementing containerized deployments with high availability.
Collaboration on high-stakes projects for a leading banking entity, focusing on the development and maintenance of mission-critical applications.
Onboarding form creation platform for financial and banking entities, featuring RPA agent integration and biometric readers to optimize registration processes.
Shipping order management and reporting platform designed to optimize company logistics and real-time delivery tracking.
Data storage and transformation (ETL) project featuring a Zabbix-based backoffice and a high-performance modern frontend.
Comprehensive e-learning platform for managing courses, certifications, and academic events, with seamless Moodle integration.