Job Description

Mechanical Lead (Erection, Testing & Commissioning) - Combined Cycle Power Plant (CCPP)

Experience: 18–20 Years
Plant Type: Combined Cycle Power Plant (~230 MW)
Location: Project Site

1. POSITION SUMMARY

The Mechanical Lead shall be responsible for complete execution, supervision, and management of erection, pre-commissioning, testing, and commissioning of all mechanical systems of a Combined Cycle Power Plant.

The role requires deep expertise in Gas Turbine, Steam Turbine, HRSG, Diverter Damper/Bypass Stack systems, rotating equipment, valves, and Balance of Plant (BOP), along with strong site leadership and cross-functional coordination

The incumbent will also support overall site management in the absence of the Project Head, ensuring smooth execution and adherence to project timelines.

Owendo, being a relocation project site, the posting will be initially at the GVK site for a period of 6 months max, till completion of dismantling and transportation of Plant & later on the candidate has to relocate to the final location Gabon during construction of Plant , Installation, Erection & Commissioning.

However, the other two Projects, Port Gentil & Lambrane, being Simple cycle Plants, with bare minimum BOP equipment & less challenges during Erection & Commissioning phase, we will have the similar JD but with lesser experience , which I shall also share with HR.

2. KEY RESPONSIBILITIES

A. Erection & Installation

• Lead and supervise erection of:

• Gas Turbine & Generator mechanical systems
• Steam Turbine & Generator mechanical systems
• HRSG pressure parts and auxiliaries
• Bypass Stack / Diverter Damper systems
• Emergency DG sets

• Ensure:

• Alignment, leveling, grouting, and torqueing as per specifications
• Compliance with approved drawings and OEM procedures

B. Rotating Equipment (Critical Scope)

• Erection, alignment, testing, and commissioning of:

• Boiler Feed Pumps (BFP)
• Condensate Extraction Pumps (CEP)
• Vacuum Pumps
• Cooling Water Pumps (Main & Auxiliary)

• Exposure to:

• Vertical turbine pumps
• Horizontal split casing pumps
• Ring section pumps

• Compressors:

• Reciprocating compressors
• Rotary compressors

C. HRSG & Steam System

• Supervise erection and commissioning of:

• HRSG modules and piping interfaces
• Drum internals and associated equipment

• Valve systems:

• Steam, feedwater, condensate, compressed air, potable water
• High-pressure valves and control valves

D. Valve Installation & Testing

• Erection, inspection, and testing of:

• Isolation valves
• Control valves
• Non-return valves

• Safety valves:

• Drum safety valves
• Superheater safety valves
• Relief valves across systems

• Conduct:

• Set pressure testing
• Seat tightness testing

E. BOP Systems (Mechanical Scope)

Lead mechanical execution for:

• DM Water Systems
• Fire Water Systems (including fire pumps)
• Cooling Water System
• Compressed Air System
• Potable Water System
• HVAC systems

F. Pre-Commissioning Activities

• Flushing and cleaning:

• Oil flushing (lube oil systems)
• Water flushing (DM/condensate systems)

• Hydro testing and leak checks
• Alignment verification and coupling checks
• Rotation checks and trial runs

G. Commissioning

• Lead commissioning of:

• GT, ST, HRSG mechanical systems
• Pumps, compressors, fans, and auxiliaries

• Conduct:

• Cold commissioning
• Hot commissioning
• Performance and reliability testing

H. Coordination & Interface Management

• Coordinate with:

• Civil, Electrical & C&I Leads
• Piping Lead and erection teams

• Ensure:

• Interface readiness across disciplines
• Clearance of interdependencies

I. Vendor & Contractor Management

• Coordinate with OEMs:

• GT, ST, HRSG, pumps, compressors

• Supervise and control:

• Multiple subcontractors

• Ensure:

• Quality of work
• Adherence to schedule
• Safety compliance

J. Site Leadership Role

• Act as Site In-Charge in absence of Project Head
• Responsible for:

• Daily execution planning
• Inter-department coordination
• Issue resolution and escalation

• Maintain:

• Progress tracking and reporting

K. Quality & Documentation

• Review and ensure:

• Inspection reports
• Test certificates
• Alignment reports
• As-built documentation

• Ensure punch point identification and closure

L. Safety & Compliance

• Enforce:

• Permit to Work (PTW)
• Lockout/Tagout (LOTO)

• Ensure safe practices during:

• Lifting, erection, testing, and commissioning

• Compliance with:

• Project HSE standards

3. REQUIRED SKILLS & COMPETENCIES

Technical Skills

• Strong expertise in:

• Rotating equipment (pumps, compressors)
• Turbine systems (GT/ST)
• HRSG and steam systems
• Valve erection and testing

• Knowledge of:

• Alignment techniques (laser/dial)
• Vibration analysis basics
• Hydraulic and pneumatic systems

Functional Skills

• Ability to interpret:

• P&IDs
• GA drawings
• Isometric drawings

• Strong troubleshooting capability
• Project execution and planning skills

Behavioral Skills

• Leadership and team management
• Strong decision-making capability
• Effective coordination across disciplines
• High ownership and accountability

4. QUALIFICATIONS

• Bachelor's Degree in Mechanical Engineering
• 18–20 years of experience in Combined Cycle / Thermal Power Plant projects
• Extensive experience in erection, testing & commissioning

5. DESIRED EXPERIENCE

• Hands-on experience in:

• GT/ST/HRSG commissioning
• Large rotating equipment
• High-pressure steam systems

• Exposure to international standards (ASME / API / ISO) preferred

6. KEY PERFORMANCE INDICATORS (KPIs)

• Timely completion of erection & commissioning milestones
• First-time-right alignment & installation
• Zero major rework incidents
• Equipment reliability during trial runs
• Safety performance (zero LTIs)

7. REPORTING STRUCTURE

• Reports to: Project Head / Commissioning Manager
• Leads:

• Mechanical Engineers
• Supervisors & Technicians
• Subcontractor teams

• Coordinates with:

• Electrical, C&I, Civil, and OEM teams

8. WORK ENVIRONMENT

• Site-based role with need based extended working hours during Erection Peak & commissioning
• High-pressure execution environment with strict timelines
• Strong focus on safety and coordination