Arabelle Dee Callejo
Construction Estimator
Summary
Korina Carla Basco
Talent Acquisition Specialist
Detail-oriented Civil Engineer with over 10 years of experience as a Quantity Surveyor and Construction Estimator for projects in the US, Australia, and Asia. Proficient in performing digital quantity takeoffs, cost estimation, and tendering using tools like Bluebeam, Planswift, and On-Screen Takeoff. Skilled in cost management, project coordination, and preparing comprehensive Bill of Quantities (BOQs) for residential and commercial construction.
Skills
Tendering & ProcurementCost Estimation & BudgetingProject ManagementMeasurement & Take-offValue Engineering
Tools
BluebeamOn-Screen TakeoffPlanswiftArchiCADGlodon (TAS)DimXCostXPDF-XChangeCAD MeasureAutoCADMS OfficeSTAAD
Experience
Estimator
Various Clients
July 2025 - Present
- Performed detailed quantity takeoffs for various projects
- Prepared and reviewed comprehensive trade scopes
- Assisted with Bill of Quantities (BOQ) preparation
- Supported procurement processes and client communications
- Estimated for commercial and residential construction
- Handled fit-out and renovation project estimates
⭐ Core Skills: Cost Estimation, Quantity Take-offs, Procurement, Client Communication, BOQ Preparation
🔧 Tools Used: Bluebeam Revu, PlanSwift, On-Screen Takeoff, Microsoft Office 365 / Suite
Quantity Surveyor
KTP Philippines – A Surbana Jurong Company
October 2020 - July 2025
- Delivered quantity surveying for public housing projects
- Executed detailed quantity takeoffs for all trades
- Coordinated with contractors, suppliers, and trades
- Assessed project progress claims for accuracy
- Resolved contractor disputes regarding quantities
- Prepared variation orders for project cost management
⭐ Core Skills: Quantity Surveying, Quantity Take-offs, Project Coordination, Cost Management, Dispute Resolution
🔧 Tools Used: Microsoft Office 365 / Suite, AutoCAD
Quantity Surveyor
DCCD Corporation
October 2019 - March 2020
- Prepared detailed BOQs with material and labor costs
- Developed Scope of Works and Material Specifications
- Managed documentation for contractor bidding processes
- Coordinated with suppliers for quotations and contracts
- Liaised with contractors on supplies and budgets
⭐ Core Skills: BOQ Preparation, Cost Estimation, Tendering, Procurement, Supplier Coordination
🔧 Tools Used: Microsoft Office 365 / Suite
Assistant Quantity Surveyor
Arcadis Manila/ GEC Philippines
February 2018 - September 2019
- Measured concrete, formworks, and reinforcement
- Ensured measurements followed HKSMM and Arcadis guidelines
- Assessed contractor measurements against updated plans
- Processed and checked variation order documentation
- Measured architectural works like tiling and painting
- Evaluated contract drawings and all addendums
⭐ Core Skills: Quantity Measurement, Variation Orders, Plan Analysis, Architectural Finishes Estimation
🔧 Tools Used: CostX, DimX, Microsoft Office 365 / Suite
Quantity Surveyor/ Site Based Engineer
Baseline Construction Corporation
2015 - January 2018
- Estimated all project quantities (rebars, concrete)
- Prepared quotations, contracts, and project budgets
- Developed BOQs and cost comparison reports
- Managed variation orders and monthly progress billing
- Evaluated tenders and contracts from subcontractors
- Coordinated with designers, owners, and contractors
- Monitored daily site accomplishments and quality
- Conducted quality inspections and punchlisting
⭐ Core Skills: Cost Estimation, Contract Management, Tendering, Project Coordination, Quality Inspection
🔧 Tools Used: AutoCAD, Microsoft Office 365 / Suite
Cadet Engineer
Monolith Construction and Development Corporation
December 2013 - June 2015
- Monitored daily work quantity and quality on site
- Tracked manpower productivity and material usage
- Determined balance of works for project turnover
- Performed quality checking and project punchlisting
- Coordinated with management and trade contractors
- Submitted weekly billing based on accomplishments
- Supervised on-site foremen and workers
⭐ Core Skills: Site Supervision, Quality Control, Project Monitoring, Billing, Team Coordination
🔧 Tools Used: Microsoft Office 365 / Suite
Estimator
Various Clients
July 2025 - Present
- Performed detailed quantity takeoffs for various projects
- Prepared and reviewed comprehensive trade scopes
- Assisted with Bill of Quantities (BOQ) preparation
- Supported procurement processes and client communications
- Estimated for commercial and residential construction
- Handled fit-out and renovation project estimates
⭐ Core Skills: Cost Estimation, Quantity Take-offs, Procurement, Client Communication, BOQ Preparation
🔧 Tools Used: Bluebeam Revu, PlanSwift, On-Screen Takeoff, Microsoft Office 365 / Suite
Quantity Surveyor
KTP Philippines – A Surbana Jurong Company
October 2020 - July 2025
- Delivered quantity surveying for public housing projects
- Executed detailed quantity takeoffs for all trades
- Coordinated with contractors, suppliers, and trades
- Assessed project progress claims for accuracy
- Resolved contractor disputes regarding quantities
- Prepared variation orders for project cost management
⭐ Core Skills: Quantity Surveying, Quantity Take-offs, Project Coordination, Cost Management, Dispute Resolution
🔧 Tools Used: Microsoft Office 365 / Suite, AutoCAD
Quantity Surveyor
DCCD Corporation
October 2019 - March 2020
- Prepared detailed BOQs with material and labor costs
- Developed Scope of Works and Material Specifications
- Managed documentation for contractor bidding processes
- Coordinated with suppliers for quotations and contracts
- Liaised with contractors on supplies and budgets
⭐ Core Skills: BOQ Preparation, Cost Estimation, Tendering, Procurement, Supplier Coordination
🔧 Tools Used: Microsoft Office 365 / Suite
Assistant Quantity Surveyor
Arcadis Manila/ GEC Philippines
February 2018 - September 2019
- Measured concrete, formworks, and reinforcement
- Ensured measurements followed HKSMM and Arcadis guidelines
- Assessed contractor measurements against updated plans
- Processed and checked variation order documentation
- Measured architectural works like tiling and painting
- Evaluated contract drawings and all addendums
⭐ Core Skills: Quantity Measurement, Variation Orders, Plan Analysis, Architectural Finishes Estimation
🔧 Tools Used: CostX, DimX, Microsoft Office 365 / Suite
Quantity Surveyor/ Site Based Engineer
Baseline Construction Corporation
2015 - January 2018
- Estimated all project quantities (rebars, concrete)
- Prepared quotations, contracts, and project budgets
- Developed BOQs and cost comparison reports
- Managed variation orders and monthly progress billing
- Evaluated tenders and contracts from subcontractors
- Coordinated with designers, owners, and contractors
- Monitored daily site accomplishments and quality
- Conducted quality inspections and punchlisting
⭐ Core Skills: Cost Estimation, Contract Management, Tendering, Project Coordination, Quality Inspection
🔧 Tools Used: AutoCAD, Microsoft Office 365 / Suite
Cadet Engineer
Monolith Construction and Development Corporation
December 2013 - June 2015
- Monitored daily work quantity and quality on site
- Tracked manpower productivity and material usage
- Determined balance of works for project turnover
- Performed quality checking and project punchlisting
- Coordinated with management and trade contractors
- Submitted weekly billing based on accomplishments
- Supervised on-site foremen and workers
⭐ Core Skills: Site Supervision, Quality Control, Project Monitoring, Billing, Team Coordination
🔧 Tools Used: Microsoft Office 365 / Suite
Education
Bachelor of Science in Civil Engineering
Technological University of the Philippines-Manila
2007–2012
Bachelor of Science in Civil Engineering
Technological University of the Philippines-Manila
2007–2012
Certifications & Training Courses
Get Ninja Executive Assistant Training Program
Get Ninja Inc.
- Client-First Ownership & Professional Standards: Trained to operate with full accountability, proactive problem-solving, and a client-first mindset. Emphasis on anticipating needs, maintaining discretion, and consistently improving efficiency and outcomes.
- Executive Support & Operational Excellence: Developed the skills to support executives at a strategic level, including calendar and inbox management, task prioritization, documentation, research, and cross-functional coordination in fast-paced environments.
- Technology & AI-Enabled Productivity: Hands-on training in using modern productivity tools and AI to enhance research, writing, data organization, and workflow optimization. Focus on applying technology responsibly with strong human judgment.
- Real-World Scenarios & Performance Validation: Training completed through scenario-based exercises and practical assessments, demonstrating readiness to deliver high-impact executive support from day one.
