Jean Cristy Lastrilla-Mercado
Tacloban City,Philippines
Summary
Results-driven Civil Engineer with over 11 years of experience delivering large-scale residential and infrastructure projects, specializing in project management, contract administration, and quantity surveying. Proven track record in supervising multi-site developments comprising 3,000+ housing units, ensuring compliance with technical standards, timelines, and budget requirements.
Experienced in managing variation orders, progress claims, cost estimation, and contractor coordination within complex, multi-stakeholder environments, including government-led projects. Adept at optimizing project delivery through strong planning, cost control, and stakeholder engagement.
Seeking to contribute as a Project Engineer or Quantity Surveyor in Singapore’s construction industry, bringing a results-oriented approach, technical expertise, and the ability to deliver efficient, compliant, and high-quality project outcomes.
Overview
9
9
years of professional experience
1
1
Certification
Work History
Project Development Officer III
NATIONAL HOUSING AUTHORITY Leyte I District Office
Tacloban City, Region VIII
01.2025 - Current
- Oversaw end-to-end engineering and construction operations, including site surveys, feasibility studies, detailed design preparation, and project implementation.
- Monitored and evaluated contractor performance, contract compliance, PERT/CPM schedules, and variations, ensuring timely and quality delivery of projects.
- Conducted regular field inspections, prepared technical reports, and provided recommendations on physical, financial, and economic aspects of ongoing projects.
- Reviewed and processed technical and administrative documents, including contract packaging, bill of materials, estimates, and payment requests for budgetary and bidding purposes.
- Coordinated with contractors, LGUs, developers, homeowners associations, and other stakeholders on project implementation, claims, variations, and program orientations.
- Prepared and submitted project accomplishment reports, performance appraisals for subordinates, and pre-trial briefs for land dispute cases.
- Represented the agency in local government sessions, inter-agency meetings, and project site discussions, providing technical advice and resolving project-related issues.
- Provided technical supervision, guidance, and support to engineering teams to ensure compliance with agency standards, procedures, and project objectives.
Supervising Engineer A
NATIONAL HOUSING AUTHORITY Leyte I District Office
Tacloban City, Region VIII
01.2024 - 12.2024
- Led technical supervision of 10+ concurrent housing and infrastructure projects, ensuring adherence to design, safety, and contract specifications.
- Managed contractor coordination for variation orders, extension of time (EOT), and progress payments, improving approval turnaround time by ~20%.
- Reviewed and certified monthly progress billings and completed works, ensuring accuracy and compliance with contract terms.
- Monitored project schedules using PERT/CPM, identifying delays and implementing corrective actions to maintain timelines.
- Supervised engineering teams and evaluated performance, improving team productivity and report accuracy.
- Prepared and reviewed contract documents, cost estimates, and bid packages for procurement and budgeting.
- Coordinated with LGUs and stakeholders for housing program implementation, resolving technical and site-related issues efficiently.
Senior Engineer A/Acting Supervising Engineer A
NATIONAL HOUSING AUTHORITY Leyte 1,2,3/Biliran District Office
Tacloban City, Region VIII
07.2017 - 12.2023
- Supervised construction of 2,000+ housing units across multiple project sites, ensuring quality control and compliance with approved standards.
- Prepared bill of materials, cost estimates, and technical studies, supporting successful project bidding and execution.
- Evaluated contractor claims including variation orders and time extensions, ensuring fair and contract-compliant decisions.
- Conducted regular site inspections and generated detailed reports, reducing rework and improving construction quality.
- Assisted in resolving land and site disputes, preparing technical documents and pre-trial briefs.
- Facilitated coordination between contractors, LGUs, and project stakeholders, improving project delivery efficiency.
- Managed site supervision, project documentation, and cost estimation for major housing developments.
- Supported delivery of 1,800+ housing units under post-disaster rehabilitation programs, ensuring timely completion.
- Reviewed project schedules, monitored progress, and certified accomplishments for billing and reporting.
Education
Completed Degree - Civil Engineering
EASTERN VISAYAS STATE UNIVERSITY
Tacloban City, LEY04-2014
Master in Engineering - Major in Environmental Engineering
SAMAR STATE UNIVERSITY
Catbalogan, Samar01-2021
Skills
- Project & Construction Management
- Quantity Surveying & Cost Control
- Contract Administration (VOs, EOT, Claims)
- PERT/CPM Scheduling & Project Monitoring
- Site Supervision & Quality Assurance
- Bill of Quantities (BOQ) & Cost Estimates
- Engineering Design Review & Feasibility Studies
- Stakeholder & Government Coordination
- Documentation & Technical Reporting
- Proficient in AutoCAD and Microsoft Office (Excel, Word, PowerPoint) for technical drawings, cost estimation, data analysis, and reporting
Certification
- Registered Civil Engineer, 2015-05-14
- Construction Occupational Safety and Health (COSH) for Safety Officer 2, 2018-08-25
References
Rocky S. Abuque
Precast Engineer
K.S.U Pre-Cast (S) Pte Ltd
Accomplishments
- Strong experience in precast-related coordination (modular housing projects)
- Extensive background in government housing and large-scale developments
- Knowledge in contract lifecycle from feasibility to project completion
Timeline
Project Development Officer III
NATIONAL HOUSING AUTHORITY Leyte I District Office
01.2025 - Current
Supervising Engineer A
NATIONAL HOUSING AUTHORITY Leyte I District Office
01.2024 - 12.2024
Senior Engineer A/Acting Supervising Engineer A
NATIONAL HOUSING AUTHORITY Leyte 1,2,3/Biliran District Office
07.2017 - 12.2023
Completed Degree - Civil Engineering
EASTERN VISAYAS STATE UNIVERSITY
Master in Engineering - Major in Environmental Engineering
SAMAR STATE UNIVERSITY