Rathish Thangaraj

• Overseeing all site engineering and construction activities for a 2GW utility-scale Solar PV
infrastructure programme — managing installation and commissioning of control systems,
electrical equipment, structural steel, field instrumentation, and auxiliary systems across multiple
substation and facility locations.
• Managingsiteteamaccomplishmentsbyfacilitatingcommunicationbetweenengineering, procurement,
construction, and commissioning teams; coordinating actions across multiple work packages;
obtaining expert input from OEM vendors; and reviewing open issues and action items at daily
coordinationmeetings.
• Preparing and reviewing technical drawings, schematics, and P&IDs to ensure accuracy and
compliance with project requirements — reviewing subcontractor submittals, design drawings,
interfacedrawings, andequipmentspecificationsbeforeapprovalandconstructioncommencement.
• Overseeingcontrolsystem(SAS/IEC61850, SCADA/HMI, protectionpanels)installationqualityonsite
— supervising panel assembly, cabletermination, signal routing, and pre-commissioning verification
activities;ensuringworkalignswithapprovedtechnicaldrawingsandspecifications.
• Managingsiteresourcesincludinglabor, materials, andequipment—coordinatingsubcontractorwork
allocation, scheduling construction activities to meet project milestones, expediting critical material
deliveries, andtrackingresourceutilizationagainstprojectbudget.
• Conductingregularsiteinspectionstomonitorprogress, qualityofwork, andcompliancewithdesign
specifications — identifying deviations, documenting non-conformances (NCRs), and coordinating
correctiveactionswithsubcontractors.
• Ensuring all site activities are conducted in accordance with safety regulations and standards —
promotingacultureofsafetyamongallsitepersonnel, enforcingHSEprocedures, conductingpre-task
safetybriefings, andmaintainingzero-LTIsafetyrecord.
• Implementing qualitycontrol measuresforall installationsand commissioning activities — reviewing
qualitydocumentation, witnessingholdpointsandwitnesspointswithclient/SECrepresentatives, and
ensuringfinalacceptancebeforesystemenergisation.
• Actingasprimarypointofcontactforclientandstakeholderson-site—addressingconcernsregarding
project progress, engineering solutions, schedule changes, and coordinating design decisions with
engineeringofficeandclientteams.
• Contributing to team meetings and reports — providing regular project status updates, identifying
engineering and schedule risks, escalating impediments to project completion, and recommending
mitigationstrategies.

• Lead engineering and delivery of control and communication systems across 10 PV
zones, 2 substations, Central Control Room (CCR), GIS, SVG and BSP, ensuring integrated
field-to-controlroom functionality.
• Managed design, installation and commissioning of SCADA, SAS, RTU and IED integrations (IEC
608705104), including I/O mapping, protocol testing and FAT/SAT activities.
• Directed telecom and fibre works: cable routing, trenching, splicing, OTDR/power-loss testing,
terminations and network equipment commissioning for SCADA, CCTV, DVM and telephony.
• Designed and validated wireless and RF telemetry solutions (LoRa and other wireless links) for
PV field monitoring and substation telemetry.
• Prepared and reviewed MOS, ITPs, RAs and technical contracts; reviewed/redmarked drawings,
SLDs and network topologies to ensure compliance with project and industry standards.
• Coordinated cross-disciplinary interfaces (Electrical, Civil, Mechanical), managed
RFIs/MARs/MIRs and led client/consultant inspections to secure approvals and handovers.
• Maintained HSE and QA/QC standards—contributed to zero-LTI outcomes—and verified ICT
and electrical system installations through physical and functional testing of switches, servers and
panels.

• Executed commissioning of SCADA, SAS, telecom, instrumentation, DC and protection systems
for a 1.27 GW PV plant integrated with 132/33 kV substations and fibre communication backbone.
• Engineered and configured RTUs and IEDs; performed I/O mapping, point testing and IEC
608705104 / Modbus TCP integration with the SCADA master for reliable data exchange.
• Integrated protection IEDs (ABB/Siemens/Schneider) using GOOSE/MMS for highspeed peerto-
peer protection and validated secondary injection, interlocks and logic for the 132 kV transformer
bays.
• Delivered telecom backbone and enddevice installations (MDF/DDF, OFMR, patch panels,
CAT6A, OFC terminations); performed OTDR and powerloss testing and IP telephony verification.
• Prepared MOS/ITP/RAs and managed approval workflows (RFI/MAR/MIR, Boxup, MCC, CCC);
coordinated inspections, NCR resolution and final client acceptance.
• Supported subcontractors with installation drawings, technical clarifications and daily planning to
meet schedule and quality targets.

• Designed and engineered Control Centre SCADA/EMS/TDMS, SAS for five substations, fibre-
optic/MPLS networks and DCMS for three microgrid sites to enable centralized monitoring and
control.
• Managed design reviews, asbuilt/redline drawings, P&IDs and MAR submissions; evaluated
vendor bids and conducted technical bid analysis.
• Planned and supervised project execution, monitored budget vs actuals, and prepared variation
requests for nonbudgeted items.
• Led a multidiscipline team and coordinated with external vendors and consultants to resolve
interface issues and secure approvals.
• Executed testing and commissioning of PVBESSICE integrated control systems, DCMS/TDMS
interfaces, OTDR testing for FO cables and LoRa/mesh telemetry (DBox/MBox/TBox/Gateway/C-
Box).
• Commissioned plant systems including CCTV, IT/telecom, fire alarm, HVAC/FA controls and
weather station instrumentation; prepared ITPs, MOS, SOPs and OEM documentation for PM/CM
activities.

• Executed instrumentation, DCS, ESD and Fire & Gas system installation, configuration and
commissioning across a large refinery project.
• Performed cold/hot loop checks, point-to-point verification, signal testing and marshalling to ensure
reliable field-to-control-room communication.
• Installed and calibrated transmitters, level/flow/pressure instruments, control valves and shutdown
devices using certified calibration tools and procedures.
• Installed and verified DC power distribution (UPS, battery banks, DCDBs) and ensured correct
wiring, grounding and system resilience.
• Supported plant telecom and LAN installations, performed structured cabling terminations and
network switch configurations for control rooms.
• Prepared MOS, ITPs, RAs, Loop Check Sheets and Commissioning Reports; coordinated
RFIs/MAR/MIRs, resolved NCRs and led handover activities with the client and consultant.

• Erection and commissioning of turbine/generator field instruments including casing TC, stator
RTD and leak detectors; installed proximeter sensors (speed, eccentricity, keyphasors) and
commissioned TSI/Bently probes.
• Commissioned boiler field instruments (bed TC, drum MTM, LDO, PT, LT), igniters, spark plugs,
BFP/CEP vibration instruments, SWAS and CEMS systems.
• Installed and commissioned WTP field instruments for UF, RO, MGF, MB and dosing systems and
associated PLC control.
• Erected and commissioned cooling water and pumphouse instruments, ESP measurement
devices (pH, conductivity) and control valves.
• Installed and tested CCTV, large video screens (LVS), PA systems and biometric access devices
as part of plant instrumentation scope.

• Directed site engineering and construction activities for electrical and control systems scope —
overseeing 110kV GIS installation, power transformer placement, control panel assembly,
SCADA/HMI configuration, and pre-commissioning activities across multiple substation sites.
• Prepared and reviewedengineering drawings, shopdrawings, and interfacedrawings — ensuringall
designscompliedwithprojectspecificationsandauthorityrequirementsbeforereleasetoconstruction
teams.
• Managed site construction scheduling and progress tracking — coordinating daily work allocation,
reviewingworkschedulessubmitted bysubcontractors, identifyingschedulerisks, and implementing
correctiveactionstomaintainmilestoneachievement.
• Oversaw qualitycontrol implementation — reviewed QC raw datafrom daily inspections, assessed
non-conformances, coordinated corrective action implementation, and tracked closure to ensure
qualitystandardsmaintainedthroughoutconstruction.
• Supervised and coordinated material receiving and inspection — verified all electrical equipment (GIS,
transformers, protection panels, cables) received against approved submittals; conducted MRI (Material
Receiving Inspection) and rejected non-conforming items.
• Ensured compliance with safety regulations and standards throughout construction phase — enforced
OSHA and project-specific HSE requirements, conducted site safety audits, and maintained incident
tracking and reporting.

• Supervised site engineering and construction activities across 339MW solar farm, 240MW BESS
systems, 7 microgrid projects, and offshore island installations — managing control system,
electrical equipment, and instrumentation package installation across distributed sites.
• Oversaw DCS/SCADA system installation and pre-commissioning — supervising control panel
assembly, SCADA server installation, RTU placement, field cabling termination, and communication
network setup across multiple remote sites.
• Managed instrumentation package installation and commissioning preparation — supervising pressure
transmitter, temperature transmitter, flow transmitter, and level transmitter installation; verifying HART
device addressing and basic functionality before hot commissioning.
• Coordinated site construction scheduling across multiple simultaneous work fronts — GIS installation
at 4 substation locations, 75 Compact Switchgear Units (CSU) installation across multiple sites, power
transformer placement and testing, and solar array construction.
• Conducted regular site inspections monitoring progress and quality of work — documented daily
construction status, identified work deviations, raised NCRs for non-conforming work, and coordinated
corrective actions.
• Ensured electrical equipment quality through material receiving inspection and installation oversight —
verified GIS, transformers, switchgear, cables against approved specifications; supervised proper
handling, storage, and installation procedures.
• Managed site resources and material procurement — coordinated material deliveries from supplier sites,
tracked inventory and stock levels, expedited critical materials to prevent construction delays, and
managed storage logistics.

• Supervised site engineering and construction activities for 115kV and 13.8kV HV substations —
managing electrical equipment installation (115kV GIS, underground cables, protection panels),
fire suppression and alarm system EPC, and HVAC system installation.
• Coordinated with RC and SEC authorities during construction and pre-commissioning phases —
scheduled authority inspections, prepared inspection packages, facilitated inspection activities, and
addressed authority comments and requirements.
• Prepared and reviewed technical documentation including work method statements, safety plans, and
material submittals — ensuring all documentation met authority and project quality requirements before
construction commencement.
• Monitored construction schedule and progress — tracked daily activities against approved project
schedule, identified schedule risks, and implemented corrective actions to maintain milestone
achievement.
• Managed site quality assurance — reviewed quality surveillance activities, monitored material receipts
and inspections, documented non-conformances, and tracked corrective action closure.
• Ensured safety compliance throughout construction — enforced safety regulations, conducted toolbox
talks, managed safety incidents and near-misses, and maintained HSE performance metrics.

• Led instrumentation and control systems commissioning for a large-scale petroleum refinery —
overseeing DCS (Distributed Control System — Honeywell Experion PKS), ESD (Emergency
Shutdown System — SIL-rated), F&G (Fire & Gas), and DC auxiliary system installation, pre-
commissioning, and startup.
• Supervised instrumentation package installation and commissioning — managed pressure, temperature,
flow, and level transmitter installation; performed HART-based device addressing and calibration using
Emerson 475/AMS Device Manager; verified measurement accuracy.
• Led loop checking activities for all I&C circuits — coordinated cold loop checks across all process units
verifying continuity and insulation resistance; witnessed hot loop checks confirming signal transmission
and response accuracy.
• Oversaw DCS and ESD system startup and functional testing — performed system functional checks,
tested shutdown logic and interlock response, verified SCADA/HMI command and control functionality,
and confirmed all system safeguards operational. Prepared comprehensive commissioning Risk (RA), Site