Rumar Gibs Ecaldre
Senior Software Engineer · Backend Systems · APIs · Automation · AI Integrations
Cagayan de Oro City, PH · +63 917 391 6527 · rumargibs@gmail.com · rumargibs.com · LinkedIn · GitHub
Summary

Senior software engineer with 10+ years building backend systems, APIs, and AI-powered products for startups and media companies. Specialized in Laravel, Node.js, and Rust (Axum), with deep experience in REST API design, system architecture, database optimization, payment integrations, and large-scale migrations. I integrate AI into products: LLM features, retrieval (RAG), and automation that removes manual work, and cover the full stack with React and TypeScript when a project needs it.

Skills
Backend Engineering
Rust / Axum PHP / Laravel Node.js / Express NestJS REST API Design System Architecture
Frontend Engineering
React TypeScript Responsive Web UIs
AI & Automation
AI Integrations LLM Applications RAG Systems AI Agents MCP Development Workflow Automation
Databases
PostgreSQL MySQL pgvector DynamoDB
Cloud & Infrastructure
Docker Vercel AWS SAM Git
Payments & Integrations
Stripe Webhooks Third-Party APIs
Experience
Senior Backend Engineer, MindFeed · Remote
Jun 2025 – Present
Backend modernization and architecture, leading a migration to Rust.
  • Owned the migration of a legacy Node.js / Express backend to Rust (Axum), modernizing the architecture for performance, reliability, and long-term maintainability.
  • Designed and integrated Stripe billing and Strava activity-data sync into the platform.
  • Restructured API design and documentation, improving developer experience and collaboration with the front-end team.
  • Built a modular backend architecture that simplified scaling and ongoing maintenance.
  • Introduced automation and tooling across the workflow to speed up delivery without sacrificing code quality.
Web Developer, Karta · Remote
May 2020 – Dec 2024
API and reporting systems for a client-portal platform.
  • Designed and built REST APIs powering client dashboards and real-time sales reporting.
  • Automated recurring reporting jobs and queries, removing manual data-handling work.
  • Architected backend solutions and collaborated on feature planning across the product.
  • Contributed front-end improvements with React and TypeScript. Stack: Node.js, AWS SAM, DynamoDB.
Web Developer, Avazoo / ApptechGateway · Remote · Contract
Mar 2020 – May 2022
Backend development and API support for mobile and web clients.
  • Designed database schemas to support scalable application features.
  • Built and maintained API endpoints consumed by mobile and web clients.
  • Implemented server-side logic for core business features and admin tooling. Stack: Laravel 8.
Web Developer, Hurricane Media · Remote
Feb 2018 – Mar 2020
Payment integrations and backend performance for web applications.
  • Integrated Stripe with Laravel, building secure payment flows and webhook handling for real-time events.
  • Optimized slow database queries and restructured endpoints to improve backend performance.
  • Built responsive front-end interfaces with designers and developed reusable backend components.
  • Onboarded and mentored new developers.
Web Developer, NexusBond Asia Inc. · Remote
Jul 2015 – Feb 2018
Full-stack development with code review and mentoring responsibilities.
  • Built and maintained client web applications. Stack: Laravel.
  • Reviewed code and onboarded new team members.
  • Supported technical screening and hiring as the team grew.
Selected Projects
LaundryFlow: Operations & POS React · TypeScript · NestJS · PostgreSQL · Docker

Laundry businesses ran operations and sales on disconnected tools. Built a single operations and point-of-sale platform (NestJS API + React in one monorepo) so staff manage orders, payments, and daily operations in one place.

Healthcare AI Platform React · TypeScript · Express · Supabase · Stripe

Clinic insurance pre-authorization was slow and manual. Built a HIPAA-conscious platform that uses AI to streamline approvals, with separate provider and patient flows, Stripe billing, and secure document handling.

Legal Research RAG React · NestJS · PostgreSQL · pgvector

Lawyers spent hours searching case law by hand. Built a retrieval-augmented research tool with semantic search and automatic practice-area classification over Philippine case law, cutting research time to minutes.

Education
Bachelor of Science in Information Technology
Liceo de Cagayan University · Cagayan de Oro City · 2009 – 2013