Hi, I'm Renzo Aldridge Quiballo

A Full-Stack Software Engineer building scalable web applications, resilient backend architectures, and modern AI integrations.

Renzo Profile Portrait
01 / Portfolio

Selected Works

01

Enterprise Blazor & AI Legal Workspace

Enterprise software delivered for Axesscom / Baker McKenzie featuring data-dense Blazor UI, RAG workflows, and token optimization.

C# / Blazor / Telerik / Qdrant / Azure AI
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02

1st Mega Saver Retail System & Portal

Modernized retail infrastructure integrating 15+ modules, 200+ employee portal, and reducing operational errors by 85%.

C# / .NET Core / SQL Server / Dapper
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03

Real-Time Collaborative AI Workspace

AI-integrated systems with real-time WebSockets synchronization enabling sub-100ms collaboration and 40% higher engagement.

WebSockets / Python / React / AWS / Docker
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04

Government Water District Modern CMS

Full-scale backend rewrite for a government water district reducing administrative lead times by 50% and post-release defects by 42%.

.NET / PostgreSQL / REST APIs / OWASP
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02 / Architecture

Technical Stack

.NET & Backend Engineering

  • C# & .NET Core / FrameworkExpert
  • ASP.NET Core & Blazor Web ServerExpert
  • Clean Architecture & CQRSAdvanced
  • Dependency Injection & RepositoryExpert
  • RESTful APIs & MicroservicesExpert
  • Dapper & Entity FrameworkAdvanced

AI & Advanced Tech

  • RAG (Retrieval-Augmented Gen)Advanced
  • OpenAI GPT APIs & Prompt Eng.Expert
  • Vector DBs (Qdrant / pgvector)Advanced
  • Ollama (Local LLM Hosting)Proficient
  • Token Optimization WorkflowsAdvanced
  • AI-Assisted Dev (GitHub Copilot)Expert

Frontend, Databases & Cloud

  • React JS, Next JS & AngularAdvanced
  • Telerik UI & Tailwind CSSExpert
  • SQL Server (T-SQL) & PostgreSQLExpert
  • MySQL & Redis CachingAdvanced
  • Docker & AWS (S3, RDS)Proficient
  • Azure DevOps & CI/CD PipelinesAdvanced
03 / Experience

Career Milestones

April 2026 — July 2026

Senior .NET Developer (Project-based Contract)

Axesscom (Outsourced to Baker McKenzie)

Delivered a high-stakes enterprise software project within a targeted 3.5-month timeline. Engineered Blazor Web Server and Telerik UI interfaces, architected context-aware AI/RAG workflows with Qdrant vector database, OpenAI APIs, and local Ollama deployments with token optimization.

July 2024 — March 2026

Software Developer

Tarlac MAC Enterprises Inc.

Integrated 15+ retail system functionalities into 1st Mega Saver legacy retail infrastructure (40% technical debt reduction). Pioneered a centralized document portal for 200+ employees saving 25 hours weekly, and architected decoupled C#/.NET backend reducing operational errors by 85%.

2022 — 2024

Instructor / Software Developer

Tarlac State University

Instructed computer science & IT coursework while building university institutional software applications.

2021 — Present

Freelance Software Developer

Independent Client Engagements

Architected AI systems with sub-100ms real-time WebSockets; spearheaded full-scale backend modernization for a government water district CMS (cutting admin lead times by 50%); orchestrated Docker & AWS cloud workflows (99.9% uptime) and hardened systems to OWASP Top 10.

Let's build something exceptional.

Available for select RAG engineering and full-stack software contracts.