Available for Opportunities

Hello, I'm Rommel V. Lagera

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Forward-Deployed Engineer & Solutions Architect with 30+ years delivering enterprise-grade systems. Bridging legacy infrastructure with modern AI capabilities.

0+ Years Experience
0+ Bills Per Month
0+ Installations
0 Operator Clients
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01. About Me

Results-driven Forward-Deployed Engineer and Solutions Architect delivering enterprise-grade systems across telecommunications, billing, IoT, and payment platforms.

With a proven track record of end-to-end solution delivery — from requirements gathering through deployment, client training, and production support — I've served 31,000+ active customers and built systems processing PHP 250 million annually across multiple operators.

Currently expanding into AI/GenAI engineering with hands-on proficiency in Claude Code, Google Gemini, Codex, DeepSeek, and GLM for AI-assisted development workflows. Pursuing formal AI engineering certification through DataCamp's Generative AI track.

Cavite, Philippines (Open to Singapore relocation)
BS Computer Engineering — Polytechnic University of the Philippines
English (Professional) | Filipino (Native)
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02. Core Competencies

AI & Generative AI

  • LLM Integration & Prompt Engineering
  • AI-Assisted Development (Claude Code, Gemini, Codex)
  • RAG Architecture Fundamentals
  • Python & TensorFlow
  • Computer Vision Basics

Systems Integration

  • API Architecture & REST Services
  • Legacy System Modernization
  • Database Migration & Optimization
  • Real-Time Data Processing
  • Telecom & IoT Protocols

Client Solutions Delivery

  • End-to-End Project Ownership
  • Requirements Analysis & Solution Design
  • Stakeholder & Vendor Management
  • User Training & Production Support
  • Multi-Site Deployment

Technical Stack

Languages

Python Java Kotlin JavaScript Ruby SQL BASH

Frameworks

Spring Boot Node.js Express.js React Native OpenXava/XavaPro

Databases

PostgreSQL MySQL MariaDB SQLite

Cloud & DevOps

Digital Ocean Linode Ubuntu CentOS Git Docker OpenVPN

Telecom / IoT

Asterisk PBX FreeRADIUS daloRADIUS SIP Protocols RFID/QR Systems

AI Tools

Claude Code Google Gemini GitHub Codex DeepSeek GLM Kilo

03. Professional Experience

Forward-Deployed Engineer & IT Solutions Consultant

AOT Group (MRDC / TETCO) 1993 – Present Surigao del Sur, Philippines

Independent consultant providing end-to-end solution delivery for rural telecommunications and cable TV operators with full ownership of design, development, deployment, and support. Evolved operator billing from basic voice call services to predominantly internet service billing as the industry transitioned to broadband.

Enterprise Billing Platform

AI-Ready Data Architecture

  • Billing systems processing PHP 250M annually across 6 operators, serving 31,000+ customers
  • Evolved platform from basic voice call billing to internet service billing as operators transitioned to broadband ISP
  • Personally developed 98% of codebase — full-stack ownership from DB to UI
  • Integrated modules: payment processing, service ticketing, paperless billing, SMS/email notifications, automated reporting

Automated Service Provisioning

Internet & Telecom Real-Time Control

  • Built custom provisioning engine integrating billing payment module with daloRADIUS/FreeRADIUS server
  • Automatic internet service disconnect for accounts with outstanding balances; instant reconnection upon payment
  • Integrated with VoIP (Asterisk) and RADIUS authentication for real-time service control
  • Reduced manual intervention by 90%, improving operational efficiency and customer experience

Legacy System Modernization

Technology Migration Leadership (2025–2026)

  • PostgreSQL 9.3 → 16, JDK 7/8 → 17, Java → Kotlin, OpenXava 5.6 → XavaPro 7.x
  • ISP platform migration (daloRADIUS 0.9-9 → 2.2 beta) with 21,000 records preserved
  • CentOS 8 → Ubuntu 24.04, FreeRADIUS 2.x → 3.2.5, MySQL 5.1 → MariaDB 10.11
  • AI-assisted development (Claude Code, Gemini) for migration planning & code transformation

Cloud Infrastructure

Business Continuity (2024)

  • Digital Ocean cloud infrastructure for automated daily backups
  • Secure synchronization ensuring disaster recovery compliance

Notable Clients

TETCO (Surigao del Sur) MRDC / Morning Star Cable TV INTELCO (Laguna) LUKTEL (Quezon) WSTI (Samar) RomblonCable

Parking Systems Solutions Engineer

Multiple Metro Manila Properties 2016 – Present Metro Manila, Philippines

Delivered enterprise parking management systems across 40+ premier properties including Ayala, Greenfield, and Alphaland portfolios.

End-to-End Solution Delivery

  • Complete parking ecosystem: barrier control, QR/RFID readers, dispensers, collectors, POS terminals
  • Sophisticated rate computation engine with flexible pricing configurations
  • Multi-building parking slot display with real-time availability broadcasting
  • BIR compliance for receipt generation and transaction audit trails

Recent Deployments (2023–2026)

  • Multiple new installations annually across Metro Manila
  • Android Mobile POS upgrade to version 13 with enhanced security (2025)
  • North Harbor Truck Scale system with multi-camera snapshot & barrier control (2025)

Notable Client Sites

Ayala Properties (15+ locations) Greenfield Properties Alphaland Southgate Mall Sunlife Centre BGC Torre Lorenzo Circuit Mall Vertis North Alabang Town Center

Telecommunications Infrastructure Specialist

Rural Telco Operators 1993 – Present Philippines

VoIP Infrastructure Replacement

  • Migrated legacy central office telephone equipment to Asterisk-based SIP servers across 5 operators
  • Supported 3,000+ active subscriber accounts on the new VoIP platform
  • Developed custom call computation engine handling inbound and outbound call routing with real-time CDR processing
  • Integrated with billing systems for automated usage-based charging

Prepaid Systems Development

  • Prepaid call card platform for long-distance services
  • SMS-based prepaid Cable TV subscription with automated activation

Client Portfolio

TETCO (Surigao del Sur) INTELCO (Laguna) WSTI (Samar) LUKTEL (Quezon) Sultan Kudarat TelSys

Call Accounting Systems Engineer

Hospitality Properties Early Career Nationwide, Philippines

Deployed Call Accounting Systems (CAS) across major hotel and resort properties nationwide, automating guest telephone billing through PBX integration and real-time CDR processing.

Hotel CAS Deployments

  • Implemented Call Accounting Systems integrating with hotel PBX infrastructure for automated guest call billing
  • Configured CDR capture and processing pipelines for accurate per-room telephone charge posting
  • Deployed across multiple premier resort and hotel properties nationwide

Notable Hotel Deployments

Fort Ilocandia Resort Manila Midtown Hotel Cebu Midtown Hotel Montebello Villa Hotel Bluewater Maribago Costabella Tropical Beach

04. Technical Projects

Current

AI-Assisted Development Workflow

2024 – Present

Integrated Claude Code, Gemini, Codex, and DeepSeek into daily development processes for code generation, refactoring, migration planning, and documentation — achieving significant productivity improvements in legacy modernization projects.

Claude Code Gemini Codex DeepSeek

Vehicle Recognition System

2021

Car/motorcycle classification using TensorFlow and Python for vehicle counting applications. Computer vision fundamentals applicable to AI solution contexts.

TensorFlow Python Computer Vision

Contact Tracing Platform

2020 (Prototype)

Three-app ecosystem (LGU enrollment, Resident QR, Establishment Scanner) with cloud data submission. Full-stack architecture from mobile to cloud.

React Native Node.js PostgreSQL Digital Ocean

05. AI & GenAI Development

In Progress

DataCamp — AI Engineering Track

Generative AI Focus | 2026

  • Large Language Models (LLMs) and prompt engineering
  • RAG (Retrieval-Augmented Generation) implementation
  • AI application development and deployment

Self-Directed Learning

Udemy, YouTube, Hands-On Projects | 2025 – Present

  • Daily AI-assisted development using Claude Code, Gemini, Codex, DeepSeek
  • Prompt engineering optimization for software development workflows
  • AI tool integration for legacy system modernization projects

TensorFlow & Python

Machine Learning Fundamentals | 2021

  • Computer vision: Vehicle recognition (car/motorcycle classification)
  • Model training and inference pipeline development

06. Key Achievements & Impact

PHP 250M
Annual Billing Processed
Enterprise-scale data handling across 6 operators
31,000+
Customers Served
Large-scale system reliability across telco & cable TV
40+
Parking Installations
Multi-site solution delivery at premier Metro Manila properties
98%
Codebase Ownership
Full-stack technical depth from database to UI
6
Concurrent Operator Clients
Simultaneous stakeholder & multi-client management
90%
Reduced Manual Intervention
Through automated service provisioning systems

07. Get In Touch

I'm currently seeking opportunities as an AI Solutions Engineer, leveraging 30+ years of enterprise systems expertise with emerging AI capabilities. Open to Singapore relocation with negotiable notice period.

Email rommel.lagera@gmail.com Phone / Viber +63 926 638 6195 Alternate Phone +63 920 253 1515
Location Cavite, Philippines
Send Me an Email Download CV (PDF)