Hi, I'm Edwar Díaz Ruiz
Senior Full-Stack Developer | DevOps Engineer | Prompt Engineer
Senior Full-Stack Developer passionate about architecting scalable and clean solutions. Specialized in cloud-native architectures, serverless, and AI-driven systems. Experienced in AWS, Azure, and DevOps practices with expertise in prompt engineering optimization, observability, and cost-efficient deployments.
My Certifications
Main Technologies
Work Experience
My professional journey and key achievements in each position
Senior Full-Stack Developer
Designing and deploying cloud-native, serverless, and event-driven architectures in AWS and Azure while mentoring developers and ensuring best practices.
Key Achievements:
- Led design and migration of cloud-native solutions using AWS SAM and Infrastructure as Code.
- Performed a full security and architecture audit of a legacy system using SonarQube and OWASP ZAP.
- Designed and deployed a modular event-driven serverless architecture in Azure with Logic Apps, Functions, and Storage.
- Optimized OpenAI prompts for efficiency, reducing tokens and costs while improving performance.
- Implemented observability and monitoring with Application Insights and KQL for full visibility of workflows.
- Deployed multi-environment infrastructure in Azure, including production, ensuring scalability and reliability.
Intermediate Full-Stack Developer
Contributed to backend, frontend, and database development while integrating cloud services in AWS and GCP.
Key Achievements:
- Developed end-to-end solutions covering backend, frontend, and databases.
- Built and maintained scalable APIs and microservices.
- Integrated apps with AWS, GCP, and third-party services.
- Wrote unit tests to ensure backend quality and maintainability.
Development Team Leader
Led a team of developers in building a financial system while mentoring engineers and overseeing technical delivery.
Key Achievements:
- Directed planning, code reviews, and production deployments.
- Trained developers in Golang, Docker, NestJS, MongoDB, Angular.
Professional Projects
Some of the most relevant projects I've worked on, respecting confidentiality clauses
Azure serverless platform that orchestrates document processing with Logic Apps and Functions, storage, and AI.
Technologies Used
Key Highlights
- Modular workflows with Logic Apps as the orchestrator.
- Optimized prompts to lower token usage and cost.
- End-to-end observability and per-document traceability.
Security and architecture audit of a legacy .NET microservices system.
Technologies Used
Key Highlights
- Identified critical vulnerabilities and outdated dependencies.
- Mapped inter-service dependencies and architecture.
- Provided modernization recommendations.
Hybrid microservices and serverless system to automate social network workflows with IaC.
Technologies Used
Key Highlights
- Designed serverless architecture and service interactions.
- Automated multi-social workflows with event-driven components.
- Cost optimization with Intelligent-Tiering and lifecycle policies.
Side Projects
Personal projects where I experiment with new technologies and explore innovative ideas
Certifications & Learning
My commitment to continuous learning and professional development
Education
Universidad Distrital Francisco José de Caldas
Bogotá, Colombia
Bachelor's degree in Systems Engineering with focus on software development, system architecture, and project management.
Official Certifications
Amazon Web Services (AWS)
Amazon Web Services (AWS)
Courses & Training
Platzi
Platzi
Pluralsight
Pluralsight
Platzi
Pluralsight
Pluralsight
Pluralsight
Udemy
Udemy
Udemy
Udemy
Frequently Asked Questions
Common questions about my experience, services, and availability
I specialize in modern web technologies including React, Next.js, TypeScript, Node.js, and Go. For cloud and DevOps, I work extensively with AWS (Lambda, SAM, Bedrock), Azure (Functions, Logic Apps, OpenAI), Docker, and Kubernetes. I'm also experienced in AI integration, prompt engineering, and RAG systems.
I have extensive experience with AWS (certified Solutions Architect and Cloud Practitioner), Microsoft Azure, and Google Cloud Platform. My expertise includes serverless architectures, containerization, Infrastructure as Code, and cost optimization across all three major cloud providers.
Absolutely. I have hands-on experience with prompt engineering, building RAG (Retrieval-Augmented Generation) systems, implementing MCP (Model Context Protocol), and integrating LLMs from OpenAI, Anthropic, and Azure OpenAI Service. I also specialize in AI cost optimization and observability.
I believe in infrastructure as code, automated CI/CD pipelines, and comprehensive observability. I use tools like AWS SAM, CloudFormation, Docker, Kubernetes, and GitHub Actions to create reproducible, scalable infrastructure. I also implement monitoring with Application Insights, CloudWatch, and custom KQL queries.
Yes, I perform comprehensive code audits using SonarQube for code quality and OWASP ZAP for security vulnerability assessment. I can identify critical vulnerabilities, outdated dependencies, and provide modernization recommendations for legacy systems.
Contact
Have a project in mind? Let's talk and make it happen together!
Ways to Contact
I respond within 24 hours
Let's connect professionally
Check out my projects
Read my technical articles
More technical articles and posts
Short-form dev content and tips
Why work with me?
- Full stack development and DevOps expertise
- Focus on scalable and maintainable solutions
- Clear communication and timely deliveries
- Passion for emerging technologies
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