Libardo Ramirez

Computer Scientist & Software Developer

I’m a Computer Scientist and Software Developer specializing in backend architecture and secure systems. Over the past 15 years, I’ve built and scaled APIs, data pipelines, and infrastructure that power real-world products from e-commerce platforms to educational systems across Europe, Asia, and Latin America.

My focus is on creating secure, reliable, and high-performance software. With a foundation in cybersecurity (ISC2 Certified in Cybersecurity, Information Security Specialist) and a Master’s in IT Administration, I design systems that are not only fast and maintainable but built to withstand modern security threats.

My Experience My Projects

My Experience

Backend Development & Systems Architecture

  • Built scalable REST and GraphQL APIs using Python (FastAPI, Django) for data-heavy and high-traffic applications.
  • Integrated LLMs (OpenAI SDK, Ollama, MLX) to deliver intelligent automation and data processing capabilities.
  • Managed large-scale SQL and NoSQL environments (PostgreSQL, MySQL, MongoDB) with optimized performance and data reliability.
  • Designed container-ready microservices architectures for modular scaling and system resilience.

DevSecOps & Secure Systems Engineering

  • Developed pysandboxing, a Python module enforcing secure code execution and preventing injection attacks in backend environments.
  • Managed Docker-based deployments, NGINX load balancing, and cloud infrastructure (AWS and GCP) for high availability and scalability.
  • Automated CI/CD pipelines, reducing deployment times from days to hours and improving delivery consistency.
  • Conducted performance, stress, and penetration testing to ensure compliance with enterprise-grade security standards.

Security & Reliability by Design

  • Implemented security and performance reviews at every development phase to ensure long-term stability and reliability.
  • Applied principles of secure architecture, proactive vulnerability mitigation, and risk-based testing.
  • Delivered systems that passed third-party audits and maintained zero critical vulnerabilities post-deployment.

My Projects

Timer Of Time App

Timer Of Time

Simple timer for simple times.

  • Shows the estimated finish time!
  • Pause your timer anytime and continue it when you feel you are on track again.
  • Receive reminders on each cycle completes.
View on App Store
Bedtime Snuggles App

Bedtime Snuggles

AI-powered bedtime stories for kids with privacy first approach.

  • Instantly create private, magical stories with Apple Intelligence—on your device, never in the cloud.
  • Privacy first: no data collection, no servers, nothing leaves your iPhone or iPad.
  • For all ages: bedtime stories, fun adventures, and creative learning in multiple styles.
View on App Store

Let's Connect

Get in Touch

Feel free to reach out for collaboration, questions, or just to say hi!