Ernest John Maskariño, Senior Lead Consultant at CGI Philippines
Senior Lead Consultant · CGI Philippines
I build the integrations that orders travel through.
ORDER 00001 · 23:58 · PARIS
How
Order
A channel talks to a contract, not to a schema.
The warehouse is asleep.
It goes through.
Exponential back-off, then a dead-letter queue. Nothing is lost: it is parked, and someone gets paged.
Delivered. No one noticed. That is the job.
DELIVERED · 05:58 · MANILA
Success is quiet production
MuleSoft · API-led · Java & Spring · MuleSoft Certified Developer L1
Who
Where
Now
Nine roles since 2017. The bars overlap because the jobs did.
Projects
Client work is under NDA. The shape of it is not.
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Senior Lead Consultant
Jul 2026 – now
- MuleSoft · Anypoint Platform
- API-led connectivity
- OMS ↔ third-party systems
OMS to its third parties, EMEA and global.
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Senior MuleSoft Developer
Nov 2025 – Jul 2026
- MuleSoft · Anypoint Platform
- Enhancements and change requests
- Post go-live support
Built, shipped, then kept changing after go-live.
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Freelance → Senior MuleSoft Developer
Jun 2025 – Jul 2026
- MuleSoft ↔ Shopify
- Retail APIs, Japan
- Post-production, APAC
Shopify into MuleSoft. Japan and APAC on call.
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MuleSoft Developer
Aug 2023 – Oct 2025
- Mule 4 · Design Center · MUnit
- SIT → UAT → PROD with bank DevOps
- PDDTS batch EOD · OTD R6 · XGATE COEX
Core banking as APIs. Batch end-of-day, rebuilt.
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Back-End Developer
Feb – Sep 2021
- Java · SOFABoot · SOFAStack
- Alipay stack · White Castle · ESB
- Promotion domain APIs
Promotion APIs on the Ant Group stack.
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Software Engineer · lead developer (Estate, Laguna)
Oct 2018 – Feb 2021
- Java EE · Spring · Angular 4
- MySQL · SQL Server
- Manila Water · Estate Water · Laguna Water
Meter to bill for three utilities.
Services
One request in. Eight routes out.
Send what you need. A proposal comes back.
ORDER 00002 · YOU
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Full-featured applications: booking systems, dashboards, SaaS platforms.
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Chatbots, smart search and content generation added to websites and business tools.
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Ongoing updates, security, backups and performance monitoring.
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Faster sites, better search visibility.
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Logos, colour palettes and brand kits to go with motion graphics.
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Short-form videos, animated posts and reels for campaigns.
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Custom APIs that connect systems, extending the integration work.
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Helping your team use the tools and automations I set up.
After hours
lakbay = journey
LakbayBook
LakBi, trip sidekick.
One book for the whole trip.
Built after hours for my barkada.
Same route, now an itinerary.
Itinerary · live map · bill split · crew · web, Android, iOS
lakbaybook.com ↗ Google Play TestFlight See the build →
Cloudflare Pages + Functions · Supabase Auth & Postgres · Cloudflare D1 · Capacitor 7
Contact
Same letters, different route.
Open to freelance work and collaborations.
CV (PDF) LinkedIn WhatsApp +63 915 137 3096
MuleSoft Certified Developer L1 · Jun 2022 · BS Information Technology, PUP · 2014 – 2018 · Top 10, UnionBank UHACK · Sep 2019
Philippines · UTC+8 ·