Frans Cortez

Loading

Skip to content

Frans Eemil Y. Cortez
Full-stack · Backend · AI

Based in
Bataan, Philippines

Software engineerbuilding enterprise apps,tools and AI.

I design and build enterprise software end to end: full-stack apps, backend systems, integrations, and the AI tooling around them.

Apps,tools,andAI.Builtendtoend.Applauseoptional.

From chatbots to platforms.

  1. 2019 – 2020

    Shipped custom software for clients.

    Built and tested solutions shaped around each client's requirements.

  2. 2021 – 2022

    Taught chatbots to answer.

    Dialogflow responses, third-party API integrations and agent routing, tested end to end.

  3. Since 2022

    Modernized a migration platform for 50+ environments.

    A legacy Oracle APEX and Java tool became a React, TypeScript and Flask platform.

  4. Since 2022

    Moved millions of records, retryably.

    An Oracle data model with chunked, independently retryable batches: hundreds of thousands of records typically, millions at peak.

  5. Since 2022

    Made 5,000+ assets searchable by meaning.

    Semantic and vector search with RAG lifted overall search performance by 35%.

  6. Since 2022

    Put a Claude agent into production.

    Intent classification, session memory, tool calling and guardrails, with cost-aware model routing.

  7. Since 2022

    Built the platform six teams share.

    Project Almanac guides AI-assisted development, with productivity gains of up to 30%.

Selected work.

  • Insight Agent
  • Project Almanac
  • Intelligent Data Migration
  • AI Workflow Automation
  • Flowchart Generator
  • Python
  • Java
  • TypeScript
  • React
  • Spring Boot
  • Flask
  • Oracle Fusion ERP
  • Oracle Cloud Infrastructure
  • REST APIs
  • SOAP APIs
  • JWT
  • Playwright
  • Docker
  • Anthropic Claude API
  • RAG

What itadded upto.

What it added up to

  • 5,000+

    Enterprise assets

    Indexed for semantic search (CDP)

  • 35%

    Search performance

    Improvement in search performance

  • 6 teams

    Project Almanac

    Using Project Almanac for AI-assisted development

  • Up to 30%

    Productivity

    Productivity improvement with AI workflows

  • 50+

    Oracle environments

    Oracle environments supported (IDM)

How I work.

  • Own it end to end.

    On Project Almanac: architecture, backend, frontend, AI orchestration, deployment and testing.

  • Leave it testable.

    Playwright, JUnit, pytest and Postman across unit, integration, API, regression, load and security tests.

  • Secure it from the start.

    JWT replacing HTTP Basic, input validation, API authorization and vault-managed secrets, plus prompt-injection detection on the AI side.

  • Measure what it costs.

    A token-usage dashboard tracked cost, errors and quotas, and per-tier routing sends basic requests to lower-cost models.

Read the whole story.

Software Engineer with experience designing and delivering enterprise full-stack, backend, and AI-enabled applications.

Available for selected projects
and full-time roles.

Write directly to:

frans.eemil.cortez@gmail.com

Tell me whatyou’re tryingto build.