Electrical & Instrumentation Estimator

Job Description

The Electrical & Instrumentation (E&I) Estimator is responsible for preparing accurate, competitive, and technically compliant cost estimates for electrical, instrumentation, control, telecommunications, and automation projects, primarily within Brownfield Oil & Gas facilities and as well as Greenfield Projects. The role includes reviewing tender documents, carrying out site surveys, developing preliminary engineering solutions, preparing material take-offs, estimating labor and equipment requirements, obtaining supplier and subcontractor quotations, identifying project risks, and producing complete EPC cost estimates. The position supports the Tendering & Estimating Manager in delivering commercially competitive and technically compliant tender submissions in accordance with client specifications, international standards, and company procedures.

Key Responsibilities

• Review ITTs, specifications, contract documents, BOQs and client requirements.
• Analyze project scope and identify tender deliverables.
• Identify commercial and technical risks.
• Prepare tender clarifications and technical queries.
• Attend bid kick-off and tender review meetings.
• Carry out site surveys to verify existing electrical and instrumentation installations.
• Assess switchgear, MCCs, transformers and substations.
• Verify cable routing and cable tray systems.
• Identify tie-in locations.
• Assess hazardous area classifications.
• Verify existing earthing and lightning protection systems.
• Assess existing control systems.
• Verify field instrument locations.
• Review existing junction boxes and marshalling cabinets.
• Assess telecom systems where applicable.
• Review existing DCS, PLC, ESD and SCADA interfaces.
• Assess shutdown and live plant constraints.
• Identify demolition and temporary work.
• Prepare survey reports with photographs and marked-up drawings.
• Prepare detailed quantity take-offs from Single Line Diagrams, Load Lists, Instrument Index, Cable Schedules, Instrument Loop Diagrams, Hook-up Drawings, Electrical Layouts, Instrument Layouts, General Arrangement Drawings, Hazardous Area Drawings, Vendor Documentation.
• Prepare pricing schedules.
• Prepare technical qualifications.
• Prepare commercial assumptions.
• Support to prepare the Bid Schedule.
• Prepare exclusions.
• Develop value engineering proposals.
• Participate in bid review meetings.
• Support clarification meetings.
• Support post-tender negotiations.
• Prepare Labor, Equipment & Materials Estimation and Cost Estimation.
• Coordinate with Engineering, Procurement, Construction, and Commercial departments during bid preparation.
• Coordinate with vendors and subcontractors as required.
• Identify commercial and technical risks and recommend mitigation measures.
• Maintain estimating databases, productivity norms, and historical cost records.
• Maintain and update estimating databases, productivity rates, unit costs, supplier pricing, and historical cost information.
• Provide technical and commercial support during bid clarification meetings, negotiations, and post-tender discussions.
• Explain estimate basis.
• Transfer estimating documentation.
• Explain assumptions and exclusions.
• Participate in project kick-off meetings.
• Support the Project Team during mobilization.

Requirements

• Minimum 5–10 years of estimating experience in EPC Oil & Gas projects.
• Experience in Brownfield and Greenfield projects.
• Proven experience estimating Electrical and Instrumentation EPC projects.
• Experience conducting Brownfield site surveys.
• Experience Preparing preliminary electrical and instrumentation layouts.
• Experience preparing material take-offs.
• Estimating MV/LV systems, substations, instrumentation, control systems and telecom systems.

Required Skills