Backend Software EngineerFranklin Aranda
I help businesses build scalable backend systems, APIs, and data solutions using Python, JS, .Net, PHP, and modern cloud technologies. 7+ years turning complex problems into elegant solutions.
About Franklin
Backend Software Engineer with over 7 years of experience specializing in Python, and distributed system architecture. I've helped companies from startups to Fortune 500 build scalable, maintainable systems that grow with their business.
My expertise spans from designing RESTful and GraphQL APIs to implementing complex ETL pipelines and machine learning solutions in production environments. I'm passionate about writing clean, testable code that follows SOLID principles.
Education
7+ Years Experience
Specialized in Python backend development
15+ Happy Clients
From startups to enterprise companies
50+ Projects
Successfully delivered and deployed
Languages
Services I Offer
From API development to cloud architecture, I provide comprehensive backend solutions that scale with your business.
Backend Development
Robust APIs and server-side applications
Data Engineering
ETL pipelines and data processing solutions
Cloud Solutions
Scalable cloud infrastructure and deployment
Technical Consulting
Architecture review and technical guidance
Need something custom? Let's discuss your specific requirements.
Professional Experience
7+ years of building scalable backend systems for companies ranging from startups to enterprise clients.
IT ProfessorCurrent
Guide and train students in the development of technical, methodological and human competencies within the IT field. Focus on practical, ethical approach aligned with current industry needs, promoting academic excellence and educational innovation.
Key Achievements
- Implemented modern agile methodologies in classroom
- Promoted logical thinking and problem-solving skills
Technologies Used
IT Professor
Train students in key technical competencies of the digital ecosystem with a practical, applied approach. Contribute actively to skills development in application design, mobile development, web programming and integration with emerging technologies like IoT.
Key Achievements
- Integrated IoT devices and cloud platforms in student projects
- Applied active teaching methodologies like project-based learning
Technologies Used
Backend Software Engineer
I designed and implemented REST APIs using FastAPI with static typing using PyDantic and comprehensive unit testing. I developed microservices architecture and custom Odoo modules, seamlessly integrating with Python services and the Commerce Tools platform.
Key Achievements
- I integrated the appointments made in the Web Commerce Tools with the Odoo calendar.
- Implemented SOLID principles and clean code across codebase
Technologies Used
Python Software Engineer
Participated in the migration of Oracle reports to the Databricks platform for managing Biombo shipments in Portugal, modernized legacy systems to Python-based architectures, and designed GraphQL/REST APIs for mobile and web applications.
Key Achievements
- Reduced report generation time by 60%
- Successfully migrated 50+ legacy reports
Technologies Used
Data Analysis Solutions Developer
Built comprehensive ETL models and analytics solutions using Python, Pandas, and PySpark. Developed Flask-based microservices for financial systems and integrated machine learning models in production environments.
Key Achievements
- Processed 1M+ financial transactions daily
- Implemented ML models with 95% accuracy
Technologies Used
Software Backend Solutions Developer
Participé activamente en el desarrollo de la plataforma Seed Audit, utilizada por clientes como Starbucks, implementando una arquitectura distribuida con MongoDB, Realm y RabbitMQ, junto con comunicación en tiempo real mediante WebSockets.
Key Achievements
- Tracked 10M+ products across supply chain
- Achieved 99.9% system uptime
Technologies Used
Backend Developer
Enhanced logistics monitoring systems and integrated inventory/order microservices for one of Mexico's largest retail chains. Optimized e-commerce infrastructure and improved system performance for high-volume operations.
Key Achievements
- Improved system efficiency by 35%
- Reduced error rate to <0.1%
- Handled 100K+ orders per day
Technologies Used
Programmer Analyst
Migrated legacy systems from VB to C# .NET, built and maintained reservation systems using PHP and Python, and integrated Opera Micros PMS with backend services. Worked closely on developing new modules for the vacation club system, implemented an Opera module to view guests’ personal documents, and actively participated as a backend and fullstack Python developer in the development of Palace Resorts' booking engine. Also developed internal tools and automation to optimize hotel operations.
Key Achievements
- Worked on the vacation club system, specifically in the promotions module, developing new features using VB .NET.
- Reduced manual processes by 60%
- Integrated PMS with internal web systems through an embedded WebView-style solution, enabling guest document and key data visualization within custom platforms.
Technologies Used
Technical Skills
A comprehensive overview of my technical expertise across different domains of software development.
Languages & Frameworks
Data & ML
Cloud & DevOps
Tools & Others
Featured Projects
Real-world projects that showcase my expertise in building scalable backend systems for enterprise clients.
Seed Audit - Product Certification System
Developed a scalable microservices architecture using Python, MongoDB, and RabbitMQ to track products from farm to consumer. Implemented real-time WebSocket communication for live updates and created comprehensive analytics dashboards. Additionally, contributed to Seed Audit, a critical application for auditing coffee growers and ensuring their readiness for certification, enhancing traceability and quality control in the supply chain.
Technologies Used
UL Solar - Photovoltaic Values Calculator
Designed and implemented a cross-platform mobile application with Ionic and Angular, providing a user-friendly interface for calculating various photovoltaic parameters. The app helps engineers and technicians quickly assess solar panel performance and system design requirements on-the-go.
Technologies Used
Financial ETL & Analytics Platform
Built robust data processing pipelines using Python, PySpark, and Flask microservices. Integrated TensorFlow models for real-time fraud detection with 95% accuracy rate.
Technologies Used
Oracle to Databricks Migration
Modernized legacy reporting systems by migrating Oracle-based reports to Databricks using Python and Scala. Implemented GraphQL APIs for improved data access patterns.
Technologies Used
E-commerce Logistics System
Improved existing e-commerce infrastructure using Python and Laravel microservices. Optimized inventory management and order processing systems for high-volume retail operations.
Technologies Used
Palace Resorts - Magnetic Card Burner for Spa
Developed a Windows Forms application using VB.NET to interface with magnetic card readers/writers, enabling the efficient encoding of guest and service cards for the spa. This streamlined the check-in process and improved service delivery within the resort's spa facilities.
Technologies Used
Interested in seeing more projects or discussing a custom solution?
What Clients Say
Don't just take my word for it. Here's what some of my clients have to say about working with me.
"Working closely with Franklin was a very valuable experience. His expertise in Python and microservices guided us in the architecture of our backend for our control platform."
"Working with Franklin was key to the success of our 'Calculator' app. He completed its development, fully migrated the codebase, integrated ads, and published it to the Play Store with significantly improved performance. He also advised our team for future updates, leaving behind a solid and well-documented foundation."
"Franklin’s mentorship is truly inspiring. Thanks to his clear explanations of complex programming concepts and his personalized dedication, I was able to strengthen my technical skills and gain confidence to tackle real-world projects. His classes are a real boost for anyone looking to grow in the tech field."
Let's Work Together
Ready to start your next project? Let's discuss how I can help you build scalable backend solutions.