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Diego “Degz” Arbiz Jr.

AI Systems Developer / Automation Architect

Diego Arbiz Jr.
Location
Calabarzon, Philippines
Remote
APAC · EU · US overlap
Email
degz12348@gmail.com
LinkedIn
/in/diegoarbizjr
GitHub
@degz12348-tech
Status
Open to work

AI Systems Developer and automation architect focused on turning AI from prompt experimentation into structured, production-ready systems. I design LLM-powered applications on Claude and other APIs, build the evaluation harnesses that keep their output honest, and architect the workflows, backend logic and API integrations that connect them to CRMs, marketing platforms and operational tooling. 8+ years across digital systems, SaaS environments and business automation.

Experience

Oct 2025 —
Present

AI Systems Developer

Freelance / Self-employed
  • Design and develop AI-powered applications using Claude and other LLM APIs.
  • Translate business requirements into scalable AI logic, prompt architecture and backend workflows.
  • Engineer role-based, constraint-driven instruction frameworks to improve model reliability and consistency.
  • Integrate AI systems with APIs, CRMs and automation platforms into end-to-end solutions.
  • Test, evaluate and optimise AI outputs for accuracy and production-level performance.
  • Architect reusable AI components and modular workflow systems, documented for maintainability.
Ongoing

Co-founder & Systems Lead

Scale With System — KMH Web And Tech Solutions
  • Co-run a consultancy helping agencies and digital businesses scale through automation, CRM strategy and AI-enhanced funnel infrastructure.
  • Supported multiple 6–7 figure client launches with system-driven growth models.
  • Built and operate a commercial white-labelled CRM and marketing platform for the Philippine market across two pricing tiers, including local payment integration.
  • Delivered systems for clients across real estate, insurance and debt relief, auto dealerships, coaching, education, hospitality and government.
Sep 2024 —
Sep 2025

Automation & AI Technical Specialist

Freelance / Self-employed
  • Built lead-nurturing and sales follow-up automation using GoHighLevel and LLM tooling.
  • Developed end-to-end training and recruitment systems; managed membership and onboarding workflows.
  • Implemented marketing automation to streamline internal operations and client communication.
Sep 2025 —
Feb 2026

Healthcare Advocate, Tier 2

Conduent
  • Tier 2 support for complex healthcare benefits, billing and prescription drug inquiries.
  • Advanced guidance on formularies, medication tiers and coverage stages under regulatory compliance requirements.
2020 — 2024

Online Business Manager · Ecommerce Copywriter

Freelance / Self-employed
  • CRM administration, funnel and website builds, and email marketing for coaching, consulting and debt-relief clients.
2019 — 2020

Consultant · Customer Coach

Cloudbeds — remote
  • Onboarded and supported hotel properties through SaaS implementation.
  • Troubleshot escalated issues and authored tutorials for the product knowledge base.
2018

Inside Sales Solutions Specialist

Open iT, Inc.
  • Sold software solutions into an assigned territory; ran high-level demos for line-of-business and IT decision makers.
  • Generated pipeline through outbound campaigns; maintained forecasting against quarterly targets.
2011 — 2018

Technical Support & Customer Service

TELUS International · Teleperformance · NCCC Mall · Radyo Natin

Technical support across desktop and mobile platforms, B2C service on the Comcast account, and earlier retail and broadcast roles. Full detail on request.

Selected projects

Apr — Aug
2026

Sales Coach AI — AI pipeline layer

TypeScript · Claude API · Fastify · Next.js · BullMQ
  • Real-time sales coaching over live calls; monorepo with a Fastify API, Next.js client using live tab capture, and a BullMQ worker running Claude pipelines against call audio, backed by Postgres, Redis and R2.
  • Built by a team of six; I own the AI layer — coaching pipelines and prompt architecture in packages/ai.
  • Wrote the cue-evaluation harness gating coaching output against a scripted quality bar rather than manual review.
  • 80 of 285 commits — the largest single contribution.
Ongoing

Scale With System CRM

GoHighLevel · SaaS operations · payments
  • White-labelled sales and marketing platform for the Philippine market: CRM and pipeline, scheduling, funnel builder, course portal, unified inbox and local payment integration.
  • Two commercial tiers with live paying customers.
Weekly

Practical AI App Development — live training

Teaching · developer education
  • Free live weekly training taking complete beginners from an idea to a deployed AI application using AI coding agents.

Skills

AI
Claude API · LLM integration & orchestration · prompt architecture · model behaviour control · output evaluation · AI coding agents
Automation
GoHighLevel · HubSpot · n8n · Make · Zapier · AI-driven CRM systems
Programming
Python · TypeScript · JavaScript · Node · Fastify · Next.js · REST APIs · webhooks
Data
Postgres · Drizzle · Redis · BullMQ · SQL
Infrastructure
Docker · Railway · Cloudflare R2 · Playwright · Git
Adjacent
SaaS operations · email marketing · funnel design · project management · UI/UX

Education

2016 — 2017

Master of Business Administration

Rizal Technological University
2009 — 2013

BS Business Administration — Financial Management

Bukidnon State University

Certifications

Project Management Simplified Cybersecurity Awareness: Phishing and Whaling

Languages

English
Fluent
Filipino
Native