Civil Works Inspector · Philippines

John Eric
M. Custodio

Ground Engineering & Infrastructure Specialist

Over 7 years delivering complex infrastructure projects across the Philippines — from the MRT-7 Depot transit system and national expressways to deep foundation works and slope protection. Combining hands-on site leadership with rigorous technical execution.

Piling & Deep Foundations Ground Engineering Slope Protection Zone Management MRT-7 Depot
John Eric M. Custodio at MRT-7 Depot
7+
Years
Experience
7+
Years of Experience
10+
Major Projects
3+
Sectors Served
6+
Specializations
Portfolio

Completed Projects

Completed MRT-7 train on depot tracks
Piling & Foundation Works
North–South Commuter Railway (NSCR)

Deep foundation piling and ground engineering works for one of the Philippines' largest rail infrastructure projects, ensuring structural integrity for high-load commuter systems.

PhilippinesRail Infrastructure
Completed Train works under viaduct
Road Infrastructure · Expressway
TR4 Expressway

Ground engineering and piling works supporting expressway construction, delivering safe and durable load-bearing solutions for high-traffic road infrastructure.

PhilippinesExpressway
Core Competencies

Areas of Expertise

Deep Foundation Engineering

Bored piling, micro-piling, and sheet piling supervision using MAIT 130/180/260 and SoilMec RT3 rigs, PTC Vibro Hammers, and 180T–260T crawler cranes for cage installation up to 70 m in length.

Bored PilingMicropilingSheet PilingLoad Testing
QA/QC & Geotechnical Testing

Koden ultrasonic borehole testing, polymer slurry QC (viscosity, pH, mud density, sand content), soil classification, and non-conformance management throughout drilling and concreting operations.

Koden Ultrasonic TestingPolymer Slurry QCSoil ClassificationNCR Management
Building & Steel Construction

End-to-end management of building construction including structural steel erection, concrete works, masonry, finishing works, and O&M facility commissioning for transit depots.

Structural SteelConcrete WorksO&M BuildingsCommissioning
Construction Management

Multi-contractor site coordination, project planning, scheduling, and progress monitoring; review of IFC drawings, BOQs, and contract documentation against approved plans.

Contractor CoordinationProgress MonitoringBOQ ReviewIFC Drawing Review
Contract Administration

Preparation of contractual responses to contractors’ letters and RFIs, processing of NCRs, SORs, and IWRs, and technical documentation ensuring compliance with contract conditions.

RFI ManagementNCR / SOR / IWRMethod StatementsSite Reports
International Standards

Working knowledge of NSCP, BS 8004, and ACI 336 compliance, with AutoCAD and PlanSwift proficiency. Available immediately and willing to relocate to the UAE.

NSCPBS 8004ACI 336AutoCAD / PlanSwift
Career History

Professional Experience

Sep 2024 – Present
Civil Works Zone Manager — O&M Building, Steel Structure & Slope Protection
San Miguel Corporation – SMC Infrastructure · MRT-7 Depot Project · Philippines
  • Review IFC drawings and technical documents to ensure accurate implementation and spec compliance
  • Monitor project schedules against planned milestones, identifying delays and corrective actions
  • Review and verify Bills of Quantities (BOQ) for completeness and contract alignment
  • Coordinate with project management, consultants, and contractors on construction execution
  • Process NCRs, SORs, and IWRs and prepare contractual responses to RFIs and correspondences
Jan 2024 – Aug 2024
Civil Inspector — O&M Building, Steel Structure & Slope Protection
Archen Technologies Inc. – SMC Infrastructure · MRT-7 Depot Project · Philippines
  • Performed site inspections of civil works ensuring compliance with IFC drawings and standards
  • Inspected reinforcement, formworks, concrete works, structural elements, masonry, and finishing
  • Conducted witness inspections and work verification for QA/QC compliance and IWR processing
  • Identified construction defects and non-conformances, recommending corrective actions
Feb 2022 – Jan 2024
Civil Supervisor — Bored Piling Project In-Charge
Nationwide Erectors Corporation · North-South Commuter Railway CP-02 · Philippines
  • Supervised bored piling activities ensuring compliance with QA/QC and safety standards
  • Verified MAIT 130/180/260 and SoilMec RT3 drilling equipment prior to pile installation
  • Supervised Ø1500 mm temporary steel casing installation using PTC Vibro Hammers and oscillators
  • Performed reinforcement cage inspections for cages up to 70 m, installed via 180T/260T cranes
Jan 2022 – Feb 2022
Civil Supervisor I — Sheet Pile Supervisor
Nationwide Erectors Corporation · Ilijan Combined Cycle Power Plant – LNG · Philippines
  • Supervised selection and installation of steel sheet piles, coatings, and interlocking systems
  • Managed equipment mobilization, pile alignment, driving sequence, and installation activities
  • Monitored pile driving for verticality, penetration depth, and tolerances with QA/QC teams
Jun 2020 – Jan 2022
Civil Supervisor I — Project In-Charge (Bored Pile)
Nationwide Erectors Corporation · Toll Road 4 Expressway (TR4) · Philippines
  • Operated Koden ultrasonic testing equipment to verify borehole verticality and alignment
  • Conducted polymer slurry QC tests (viscosity, pH, mud density, sand content)
  • Supervised bored pile concreting via tremie pipe method and casing extraction
Feb 2019 – Jun 2020
Junior Site Engineer / Junior Supervisor — Bored Pile
Nationwide Erectors Corporation · MRT-7 & NSCR CP-02 · Philippines
  • Assisted senior engineers across two concurrent major railway infrastructure projects
  • Prepared piling records, daily progress reports, and QC documentation
  • Prepared and revised AutoCAD drawings and construction details for site coordination
Sep 2018 – Feb 2019
Site Engineer — Civil Works, Plumbing & Fire Protection
ALPA Plumbing Works Inc. · Commercial Building & Maple Place DMCI · Philippines
  • Supervised plumbing and fire protection systems installation, testing, and inspection
  • Coordinated daily site activities and monitored architectural finishes installation
  • Supervised site clearing and land preparation for SCRP Package 7 Depot
Technical Profile

Skills & Qualifications

Deep Foundation Engineering95%
QA/QC Systems & NCR Management92%
Construction Management & Supervision93%
Contract Administration85%
Project Planning & Progress Monitoring88%
AutoCAD & PlanSwift85%
Credentials & Education
B.S. Civil Engineering
The University of Manila · Graduated 2018
Construction Safety & Health (COSH)
Occupational Safety and Health Training
Polymer Application & QC in Drilling Bored Piles
Specialized geotechnical training
Advanced Surveying — Leica TS10
Leica Geosystems · 2024
PICE Member & UAE-Ready
Philippine Institute of Civil Engineers · Available immediately
Available for New Opportunities

Let's Build
Something Lasting

Whether you're looking for a ground engineering specialist, a capable site inspector, or an experienced civil works professional ready to deploy internationally — let's connect.