Hariharan Suppaiah

Lead FEED and EPCC Mechanical Engineering delivery for upstream and downstream oil & LNG facilities, ensuring alignment with PTS, ASME, API, ISO, and regulatory requirements.Oversee preparation and approval of key mechanical deliverables: equipment specifications, datasheets, design calculations, line class reviews, stress analysis reports, GA/layouts, isometrics, MTOs, and material requisitions.Manage mechanical scope within project schedules, CTR development, progress tracking, milestone verification, and cost control.Provide technical authority support across rotating equipment, static equipment, piping design, pressure systems, and mechanical integrity.Lead multidisciplinary team (20+ engineers, designers, and managers) and coordinate interfaces with operations, process, project controls, procurement, and construction teams.Delivered upstream gas wellhead and pipeline projects, downstream plant compression upgrades, and mechanical debottlenecking programs.Implemented corrosion loop classification, RBI alignment, and mitigation strategies, reducing piping failures and improving asset reliability and availability.

Oversaw mechanical and piping engineering, planning, and cost control to ensure safe, efficient FEED and EPCC delivery across upstream, downstream, and LNG facilities. Led the Piping Engineering group, developing design philosophies, specifications, and reviewing MTOs, routing studies, and stress analyses. Delivered offshore and onshore gas projects, static equipment installations, and PETRONAS research flagship projects safely, on time, and compliant.

Managed multidisciplinary EPCC teams for the Integrated Development Package 7 – Polypropylene Project, providing technical leadership in engineering design, stress analysis, layout, and 3D modelling. Coordinated project responsibilities for high-value, timely delivery, supporting integrated, cross-discipline execution. Supervised piping installation, welding, and hydrotesting, achieving 100% PMRC mapping and early mechanical completion in full compliance with codes.

Carried out mechanical and piping engineering, planning, cost control, and resource allocation to ensure safe, efficient FEED and EPCC delivery across upstream, downstream, and LNG facilities. Led the Piping Engineering group, setting design philosophies, specifications, and material selections, and reviewing MTOs, routing studies, and stress analyses. Delivered major offshore and onshore gas projects, static equipment installations, and PETRONAS research flagship initiatives, achieving safe, timely, and compliant execution

Performed mechanical engineering, detailed design, cost control, and technical analysis for FEED and EPCC projects across nuclear, CCGT, coal, and refinery sectors. Conducted piping verification, stress analysis, material selection, and technical problem resolution. Executed site inspections and ensured compliance with ASME, API, and nuclear standards, delivering major projects including E.ON SCR, Ironbridge Biomass, Shell/Essar Stanlow, and Heysham 1 Nuclear Power Station safely and on schedule.

Served as Project Engineer providing mechanical engineering support for the Territorial Army and Police, managing requirements analysis, technical audits, system design, fault diagnosis, and defect rectification. Ensured all equipment and combat systems met strict defense standards, maintaining operational readiness, safety compliance, and timely project delivery.