Open for Global Contracts // Enterprise IT & Full-Stack Builder

Engineering Scalable Cloud Infrastructure & Modern Business Software.

IT & Systems Engineer with deep expertise across global enterprise infrastructure (Microsoft 365, Azure, Entra ID, Cloud Ops) and full-stack SaaS development (Next.js, React, Node.js, SQL).

Batangas, Philippines
Global Remote
AWS Certified Practitioner
5+Years

Enterprise IT & Cloud Ops

6+Apps

Production Live SaaS

3,000+

Multi-Tenant Global Users

99.9%

Reliability & SLA Standard

Featured Production SaaS

CTRL Worker Management System

Enterprise Progressive Web Application (PWA) built for offline-first telemetry, real-time worker scheduling, and heavy industrial jobsite workflows.

ctrl-worker-management.vercel.app

Site Operations Hub // Sector 07-B

Telemetry Active

Offline Sync: Synced 12s ago • GPS Fencing: Active • Roster: Shift Alpha

Active On-Site
84 / 92
91.3% presence rate
Shift Utilization
96.4%
Sync Latency
118 ms
SW Cache OK
Safety Score
100%
Zero incidents
Departmental Workforce Allocation
Live Load
Structural & Civil Engineering36 (94%)
Electrical & Substation Cabling24 (88%)
Heavy Plant & Machinery Operators16 (100%)
HSE & Quality Audit Inspectors8 (80%)
Target Capacity: 95.0%Optimal Allocation
Live Field Stream
Sync Active
Foreman J. SantosJust now

Zone 4 crane load checklist verified & signed off.

Crew Alpha-22m ago

PWA synchronized 14 offline inspection records.

View Live Production Instance
Production Engineering

Production Projects & Live Deployments

Engineered, deployed, and continuously maintained in live production. Explore cloud SaaS apps, real-time telemetry systems, and enterprise portals.

Enterprise SaaS
Live Production

CTRL Worker Management System

Offline-First Telemetry & Live Shift Scheduling

PWA workforce management with offline manifest, service workers, and real-time activity tracking.

Active Field Workers
84+
Sync Latency
<120ms
Shift Efficiency
+38%
Next.jsPWATypeScriptNode.jsTailwind CSSService Workers
Live Demo
Enterprise SaaS
Live Production

HR & Workforce Operations Platform

Automated Onboarding & Dynamic Allocation Engine

Dynamic workforce category tracking, client action modals, and automated enterprise HR operations.

Employee Records
250+
Audit Turnaround
2.4x Faster
Contractor Modals
100% Paperless
ReactNext.jsTailwind CSSSQLTypeScriptREST APIs
Live Demo
Operations & PM
Live Production

Construction PM Enterprise Suite

Site Material Requisition & Gantt Timeline

High-contrast project management engine for site materials, scheduling, and contractor workflows.

Milestone Accuracy
99.4%
Material Waste Cut
-22%
Contractor Sync
Real-Time
ReactTailwind CSSVercelJavaScriptContext API
Live Demo
Financial & E-Comm
Live Production

Financial & Dynamic Budget Tracker

Month-by-Month Balance & Debt Amortization Engine

Dynamic month-by-month balance progression, expense analytics, and debt amortization tracking.

Data Visualization
Interactive
Debt Payoff Simulation
Multi-Strategy
Render Performance
60 FPS
ReactRechartsTailwind CSSJavaScriptLocalStorage API
Live Demo
Operations & PM
Live Production

Eggstra Farm Management System

Flock Lifecycle Telemetry & Yield Optimization

End-to-end flock lifecycle tracking, automated harvest logs, and operational logistics.

Daily Yield Tracked
10k+ Units
Feed Conversion Metric
Auto-Calc
Distributor Billing
Automated
Next.jsReactPostgreSQL / SQLTailwind CSSFull-Stack Web App
Live Demo
Financial & E-Comm
Live Production

Padre Pio E-Commerce Store

High-Availability Commerce & Instant Cart Pipeline

High-availability commercial e-commerce storefront with optimized checkout pipelines.

Lighthouse Performance
98/100
Checkout Dropoff
<15%
Uptime Delivery
99.9%
ReactNext.jsTailwind CSSModern API IntegrationsStripe Ready
Live Demo
Career Milestones

Enterprise Systems & Cloud Experience

Track record of architecting, supporting, and maintaining high-availability infrastructure across global mega-projects, Australian healthcare MSPs, and international technology hubs.

IT EngineerCurrent FocusEnterprise Infrastructure
Chiyoda & Technip Joint Ventures (Qatar - NFE Project)
August 2026 – Present & 2022–2023Qatar // On-Site Global Mega Project

Delivering mission-critical enterprise IT operations and systems engineering for Qatar's North Field Expansion (NFE) mega oil & gas project, supporting thousands of international users across complex hybrid multi-tenant environments.

Consortium Users Supported3,000+
Critical Incident Resolution<15 Mins
Infrastructure Uptime99.98%
Key Technical Responsibilities & Impact
  • Orchestrate multi-tenant Microsoft 365, Entra ID (Azure AD), and on-premises Active Directory governance across international consortium users.
  • Execute large-scale hardware and software enterprise rollouts, OS deployment images, and zero-downtime infrastructure refreshes.
  • Diagnose and resolve complex layer 2/3 network issues, secure VPN tunnels, enterprise firewalls, and industrial site connectivity.
  • Enforce strict cyber risk mitigation, incident response procedures, endpoint encryption, and compliance standards for critical energy infrastructure.
  • Maintain high-availability file clusters, print servers, and hybrid cloud integration pipelines.
Stack:Microsoft 365Entra IDActive DirectoryHybrid CloudCisco NetworksCybersecurityPowerShellDisaster Recovery
Systems EngineerManaged Services
Priority 1 IT
July 2024 – July 2026Melbourne, Australia // Global Remote

Architected and administered secure cloud and hybrid infrastructure for Australian enterprise clients, specializing in healthcare compliance, cloud migrations, and automated disaster recovery.

Automated Onboarding Time-65%
Backup Success Rate99.9%
L3 Escalation SLA98.5%
Stack:Microsoft AzureIntune MDMWindows ServerVeeam B&RPowerShell AutomationExchange OnlineConditional AccessHyper-V / VMware
Technical Support EngineerManaged Services
N-able
Nov 2023 – July 2024Manila, Philippines

Delivered high-tier technical engineering support for global Managed Service Providers (MSPs), troubleshooting RMM architectures, agent automation scripts, and server patch distribution engines.

MSP Partner CSAT97.8%
Fleet Endpoints Monitored50k+
First-Contact Resolution+28%
Stack:N-able RMMN-centralPowerShell ScriptingWMI / SNMPWindows ServerPatch AutomationREST APIs
IT Specialist / L2 HelpdeskGlobal Systems Support
TaskUs & CBRE
2020 – 2022Philippines

Spearheaded enterprise helpdesk operations, virtual desktop environments, and global user provisioning across high-velocity contact centers and real estate technology hubs.

Personnel Onboarded1,500+
Helpdesk Ticket SLA99.2%
VDI Availability99.9%
Stack:Active DirectoryCitrix VDIVMware ESXiExchange ServerPowerShellVOIP TelephonyJira Service Desk
Technical Competencies

Enterprise IT & Full-Stack Capabilities

A dual-threat engineering profile blending enterprise-grade IT infrastructure management with production web software engineering.

Cloud & Enterprise Infrastructure

Enterprise IT Core

Multi-tenant cloud architecture, directory services, MDM policy enforcement, and hybrid enterprise networking.

Microsoft 365 Admin
Expert
Entra ID (Azure AD)
Expert
Microsoft Azure
Advanced
Intune MDM / MAM
Advanced
Windows Server (2016-2022)
Expert
Active Directory / GPO
Expert
Veeam Backup & Replication
Advanced
PowerShell Automation
Expert
Networking (VLAN, VPN, Cisco)
Advanced
VMware ESXi / Hyper-V
Advanced
Production ValidatedL1-L3 Ready

Full-Stack SaaS Engineering

Production Builder

Modern web applications, interactive frontends, scalable backend APIs, and offline-first Progressive Web Apps.

Next.js (App Router)
Expert
React 19 / 18
Expert
TypeScript
Advanced
Node.js & Express
Advanced
Tailwind CSS
Expert
PostgreSQL & SQL
Advanced
PWA & Service Workers
Advanced
Framer Motion
Advanced
REST APIs & Webhooks
Expert
State Management & React Hooks
Expert
Production ValidatedL1-L3 Ready

DevOps, Security & Observability

Reliability & SecOps

Continuous deployment, RMM fleet telemetry, identity governance, zero-trust security, and DR runbooks.

N-able RMM / N-central
Advanced
Git & GitHub CI/CD
Advanced
Vercel Cloud Deployment
Expert
Zero-Trust & MFA Hardening
Advanced
Disaster Recovery Planning
Advanced
Endpoint Security & EDR
Advanced
System Log Analytics & Telemetry
Advanced
SSL/TLS & Domain Management
Expert
Production ValidatedL1-L3 Ready

Systems Operations & Leadership

Operational Excellence

Enterprise ITIL incident workflows, L1-L3 escalation management, international client consultation, and technical documentation.

L1-L3 Incident Escalations
Expert
Global Remote Support
Expert
ITIL & SLA Governance
Advanced
Disaster Recovery Testing
Advanced
Technical Architecture Docs
Advanced
Vendor & Licensing Management
Advanced
Production ValidatedL1-L3 Ready
Verified Credentials

Certifications & Academic Foundation

Official cloud engineering credentials and university degree validating enterprise knowledge and rigorous technical grounding.

Active & Verified

AWS Certified Cloud Practitioner

Amazon Web Services (AWS)

Validates enterprise-level cloud fluency, fundamental AWS core services (EC2, S3, RDS, IAM, VPC), security architecture, high availability patterns, and cloud billing optimization.

Validation Code: KSWYLES172F4QMWG
Core AWS Cloud Architecture & Security Governance
Shared Responsibility Model & Compliance Standards
Cost Optimization & Scalable Cloud Deployments
Validation IDKSWYLES172F4QMWG
Conferred

Bachelor of Science in Information Technology

Batangas State University

Rigorous academic foundation in systems engineering, computer networking, relational database architecture, object-oriented programming, and information security management.

Batangas State University (The National Engineering University)
Specialization in Network Systems & Software Engineering
Capstone in Enterprise System Modernization
Leadership in University IT & Tech Guilds
The National Engineering University (BatStateU)
Get In Touch

Let’s Build High-Impact Infrastructure & Software Together.

Available for enterprise IT operations, global infrastructure consulting, and full-stack SaaS engineering contracts.

Direct Contact Channels

Fastest response time via email. Ready to jump on an alignment call or technical review.

Direct Email
vcserrano12@gmail.com
GitHub Repositories
github.com/vnzxc12
Visit GitHub Profile
Batangas, Philippines (GMT+8)
Available for Global Remote Collaboration
Average response turnaround: < 4 hours

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