O&M ManagerCommissioning Manager

Role SummaryThe O&A Manager with additional responsibility as Commissioning Engineer is a strategic leadership position that demands technical depth, operational maturity, and execution excellence. This role is accountable for the end-to‑to‑lifecycle ownership of plant operations, maintenance, and successful commissioning of water and wastewater treatment plants. The position requires the ability to orchestrate multi‑disciplinary teams, maintain high standards of compliance, safety, and performance, and ensure flawless handover to clients or asset owners.The incumbent shall act as the single point of accountability for uptime, operational efficiency, and performance reliability of all assigned assets while simultaneously delivering commissioning excellence during new project rollouts.Job RoleO&M Manager with Additional Responsibility as Commissioning EngineerPrimary ResponsibilitiesA. Operations & Maintenance (O&M) Management – Full Ownership of Plant Performance1. Operational Excellence & Uptime AssuranceTake full ownership of the 24/7 plant operation ensuring uninterrupted treatment processes across STP, MBR, MBBR, UF, RO and other process technologies.Drive KPI‑based monitoring including throughput, recovery ratio, energy consumption, chemical usage and OPEX per m³ of water treated.Identify bottlenecks, inefficiencies and non‑conformities in real‑time and implement corrective and preventive actions (CAPA) to optimize process performance.Maintain consistent process quality output aligned with statutory compliance and client service level agreements (SLAs).2. Preventive and Predictive MaintenanceDevelop and implement comprehensive maintenance programs including preventive, predictive and condition‑based strategies for all mechanical, electrical and instrumentation assets.Monitor asset health and schedule planned shutdowns with minimal impact on operations.Ensure availability and stock management of critical spares, consumables and chemicals through digitalised inventory systems.3. Manpower Leadership & HSE ComplianceLead a multi‑disciplinary team of operators, technicians, supervisors and engineers ensuring their roles are well‑defined, trained and monitored.Conduct performance evaluations, on‑site coaching, technical trainings and team motivation to foster ownership at all levels.Ensure 100% compliance with all local and international HSE standards implementing a zero‑incident culture, near‑miss tracking and safety drills.Serve as the HSE custodian on‑site enforcing permit‑to‑work systems, confined space entry, lockout‑tagout procedures and MSDS adherence.4. Process Data Reporting & Client InteractionGenerate daily, weekly and monthly plant performance dashboards highlighting key trends, deviations and improvement areas.Present O&M results in structured formats to senior management and external stakeholders.Serve as the client‑facing technical lead attending review meetings, audits and progress reviews with a proactive problem‑solving mindset.B. Commissioning Engineering Accountability from Mechanical Completion to Final Handover1. Project Transition and Design ValidationAct as the first technical point of contact during project transition from engineering to commissioning.Validate P&IDs, GA drawings, BOQs and process design documents for constructability and operability gaps.Provide inputs to PLC/SCADA programmers to ensure control philosophy aligns with operational practicality and safety.2. Pre‑Commissioning & Mechanical CompletionPrepare commissioning documents, commissioning checklists, inspection test plans (ITPs), calibration reports and quality dossiers.Lead pre‑commissioning activities including loop testing, pressure testing, flushing, alignment checks, leak tests and documentation verification.Coordinate with QA/QC, safety and civil teams to certify readiness for commissioning with comprehensive checklists and ITPs.3. Cold & Hot Commissioning ActivitiesExecute cold commissioning to verify mechanical and electrical integrity.Conduct hot commissioning with actual loading, operational tuning and chemical dosing to meet design KPIs (TSS, COD, BOD, turbidity, recovery % etc.).Ensure adherence to process manuals, equipment O&M manuals and commissioning protocols.4. Performance Testing & Client AcceptanceRun Performance Guarantee Tests (PGT) and operational demonstrations with calibrated instruments and validated analyzers.Prepare and submit commissioning dossiers including signed test sheets, punch‑point closures, DLP schedules and as‑built documentation.Obtain provisional and final acceptance certificates from the client with zero disputes or liquidated damages.5. Knowledge Transfer & Post‑Handover SupportConduct training sessions for client teams on plant operations, maintenance procedures, HMI/SCADA usage and emergency handling.Maintain support during Defects Liability Period (DLP) and continue monitoring until stable handover.6. Core Competencies RequiredProcess Mastery: Deep knowledge of treatme