Ray Caballero

Manila, Philippines

Full-stack engineer building regulated tokenization infrastructure—from on-chain integrations and APIs to the investor and compliance surfaces around them.

For 10+ years, I’ve built production software. Today at InvestaX and IXS, I own features end to end across vaults, trading, reporting, and platform operations—delivered through an agent-assisted development model I introduced to the team.

01 / Projects

Systems shipped

Selected systems I’ve helped take from specification to production across regulated capital markets, tokenized assets, public-sector operations, and service platforms.

IXP Platform interface

INVESTOR & ADMIN OPERATIONS

IXP Platform

Built the reporting and operations layer for a regulated investor platform: distributions, statements, P&L, FX conversion, product taxonomy, NAV history, fees, and automated document delivery.

  • Investor reporting
  • Admin operations
  • PDF · Email automation
IXS v2 interface

NEXT-GEN PLATFORM · KYC-GATED DEX

IXS v2

Helped rebuild the platform around a modern Next.js and TypeScript architecture, then delivered regulated trading, generalized whitelist requests, and individual and corporate onboarding.

  • Uniswap v4 DEX
  • KYC · FATCA · Whitelisting
  • Hono API migration
Teko Platform & COMS interface

FIELD SERVICE · AFTER-SALES OPERATIONS

Teko Platform & COMS

Contributed to Teko’s consumer service marketplace and its cloud-based, white-label order-management platform connecting customers, call centers, technicians, and service partners.

  • Billing workflows
  • Order management
  • High-traffic stability
Agent-First API interface

MCP · REGULATED TRANSACTION INTENTS

Agent-First API

Built an MCP integration that lets external agent runtimes discover vaults, inspect positions, fetch quotes, and initiate deposits while the platform constructs the unsigned transaction intent.

  • MCP endpoint
  • Vault discovery
  • Safe transaction construction
Permissionless Vaults interface

ERC-4626 · CROSS-CHAIN RWA ACCESS

Permissionless Vaults

Built the public vault product from discovery through subscribe and redeem flows, including transparency and legal surfaces plus an embedded LI.FI bridge that converts cross-chain holdings into USDC.

  • Product frontend
  • 8+ EVM networks
  • UUPS contract integration
Permissioned Vaults interface

ERC-7540 · INSTITUTIONAL WORKFLOWS

Permissioned Vaults

Delivered compliance-gated vaults as a complete system—a backend vault service, synchronous and asynchronous deposit APIs, whitelist approval flows, and a role-gated operator console.

  • Backend service
  • Async deposit · Redeem
  • Operator console
PMEIS interface

NEXT.JS · PUBLIC-SECTOR OPERATIONS

PMEIS

Built and deployed a Performance Monitoring and Evaluation Information System for the Philippine Parole and Probation Administration, designed around agency targets, accomplishment tracking, evaluation, and management reporting.

  • Next.js application
  • Performance monitoring
  • Government deployment

02 / Expertise

How I contribute

I connect protocol behavior, product experience, backend architecture, and regulated operations into working systems—not isolated deliverables.

~/expertise/01-agent-assisted

$ whoami --capability 01

Agent-assisted engineering

// Decompose work into verifiable specifications, delegate in parallel, and retain responsibility for review and integration.

$ ls skills/

  • Codex
  • Claude Code
  • GitHub Copilot
  • MCP
  • Spec-first planning
  • Parallel agents
  • Code review
  • GitHub Actions
  • Docker
  • Vercel
  • Grafana

$ _

~/expertise/02-full-stack

$ whoami --capability 02

Full-stack delivery

// Own a feature across interface, API, service, data model, indexing, and production operation.

$ ls skills/

  • TypeScript
  • JavaScript
  • Python
  • PHP
  • React 19
  • Next.js
  • TanStack Query
  • Zod
  • Node.js
  • Hono
  • Express
  • MongoDB
  • PostgreSQL
  • MySQL
  • REST
  • GraphQL
  • AWS

$ _

~/expertise/03-tokenization

$ whoami --capability 03

Tokenization systems

// Translate vault and exchange protocols into products investors and operators can actually use.

$ ls skills/

  • ERC-4626
  • ERC-7540
  • UUPS
  • Uniswap v4
  • LI.FI
  • wagmi
  • viem
  • ethers.js
  • Fireblocks
  • The Graph
  • Goldsky

$ _

~/expertise/04-regulated-product

$ whoami --capability 04

Regulated product engineering

// Turn legal, compliance, and operational requirements into clear workflows with traceable controls.

$ ls skills/

  • KYC/KYB
  • ComplyCube
  • FATCA
  • RBAC
  • Whitelisting
  • Audit trails
  • NAV / P&L
  • Investor reporting
  • BCP / DR

$ _

03 / Experience

Hacking since 2016

2023—NOW

Senior Full-stack Engineer

InvestaX & IXS

SingaporeRemote

Lead delivery across multiple projects spanning two product organizations—from ERC-4626/7540 vaults and KYC-gated trading to APIs, subgraphs, investor reporting, and compliance-facing administration.

2022—2023

Senior Web3 Developer

The Blox Labs

PhilippinesRemote

Pioneered the SAVER dApp for buying, staking, and donating tokens, while mentoring junior developers and collaborating across blockchain products.

2020—2022

Full-stack Developer

Teko Solutions Asia

PhilippinesRemote

Drove development for the Teko Platform and COMS, delivering billing workflows and improving legacy functionality for stable operation under high traffic.

2019—2020

Front-end Developer

Impero Consortium Management Corp.

PhilippinesHybrid

Architected blockchain-based single-page applications, including a fintech platform that helped offshore companies register for Philippine blockchain operations licenses.

2018—2019

Web Developer

Binary Digital Advertising

PhilippinesOn-site

Developed multiple advertising websites and built high-performance APIs for a library system and mobile travel application.

2016—2018

Software Engineer

Suiterus Technologies Inc.

PhilippinesOn-site

Led end-to-end development of a document-management system, an online bidding application, and multiple websites.

04 / Contact

Let’s talk.

For roles, collaborations, or product engineering work,
email is the best way to reach me.