Ayyappan Rajendran
Nannilam
Summary
Accomplished Instrument Technician with 10 years of experience in instrumentation maintenance, commissioning, and troubleshooting in the oil & gas, petrochemical, and LNG sectors. Expertise in calibration, loop checking, termination, and troubleshooting of field instruments, control valves, and DCS systems. Proficient in interpreting P&ID, hook-up drawings, and instrument location diagrams. Demonstrated ability to ensure compliance with plant safety rules and regulations while executing projects efficiently. Seeking to leverage my skills and experience to contribute to a forward-thinking organization.
Overview
12
12
years of professional experience
Work History
Senior Instrument Technician
Raiply Malawi Ltd
Malawi
07.2025 - 09.2025
- Executed calibration of control valves
- Conducted field-to-DCS loop checks and resolved instrument malfunctions
- Performed PST and stroke tests on control valves and MOVs
- Verified signal integrity between field instruments and control systems
- Ensured operations met RAIPLY's safety protocols
- Performed PSV & PRV service and testing
- Trained a maintenance service engineer
Senior Instrument Technician (Shutdown)
Bilfinger Deutsche Babcock Emirates
Abu Dhabi
04.2025 - 05.2025
- Executed calibration of PT, FT, LT, TT, PG, and TG ensuring precise field operations
- Conducted field-to-DCS loop checks and resolved instrument malfunctions
- Led a team to ensure seamless instrumentation during plant shutdown
- Performed PST and stroke tests on control valves and MOVs
- Verified signal integrity between field instruments and control systems
- Ensured operations met BOROUGE safety protocols
- Performed PST and stroke tests on emergency shutdown valves
Senior Instrument Technician (Shutdown)
Exceltech Solutions Sdn Bhd
Brunei
08.2024 - 01.2025
- Executed calibration of PT, FT, LT, TT, PG, and TG ensuring precise field operations
- Conducted field-to-DCS loop checks and resolved instrument malfunctions
- Led a team to ensure seamless instrumentation during plant shutdown
- Performed PST and stroke tests on control valves and MOVs
- Verified signal integrity between field instruments and control systems
- Ensured operations met Brunei LNG safety protocols
Senior Instrument Technician
Zamil Heavy Industry Ltd
Saudi Arabia
11.2022 - 10.2023
- Led a team in maintaining instruments for the GMS project
- Verified proper functioning of all instruments before plant startup
- Diagnosed and rectified instrument issues promptly
- Ensured accurate data flow from field instruments to DCS
- Conducted ATEX-compliant instrument checks
- Managed instrumentation shutdown activities
Instrument Technician (Shutdown)
Bader Al Mulla Engineering
Kuwait
11.2021 - 02.2022
- Handled critical instrument repairs for Kuwait Oil Company during shutdown instrumentation maintenance
- Ensured high accuracy in pressure, temperature, and flow instruments through calibration and testing
- Conducted safety compliance inspections as part of process safety checks
- Ensured instrument accuracy through rigorous loop testing and field verification
- Maintained detailed logs of instrumentation activities in technical reporting
- Performed testing and calibration on control valves
Instrument Foreman
Sinopec Tenth Engineering
Kuwait
09.2019 - 01.2021
- Performed pre-commissioning & commissioning activities
- Installation of control system: DCS
- Installation of equipment: DCS console, field JB
- Loop checking & troubleshooting
- Cable glanding & termination
- Safety compliance & inspections
- Calibrated control valve, MOV, ESDV
Instrument Technician
Sepco Oil and Gas Industry
Oman
08.2016 - 08.2018
- Instrument testing & calibration
- Loop checking & troubleshooting
- Cable glanding & termination
- Safety compliance & inspections
- Rotating equipment instrumentation
- Shutdown instrumentation support
Maintenance Instrument Technician
MS Franklin IME Technology
India
12.2013 - 12.2016
- Routine maintenance & troubleshooting
- Instrument calibration & loop checking
- Field device installation & testing
- DCS & PLC interface verification
- Control valve functional testing
- Technical documentation & reporting
Education
Diplomo in Instrumentation -
Indian Institute of Industry Interaction Education
Chennai,Tamilnadu07-2023
ITI -
K.V.S.I.M Trust
Kumbakonam ,Tamilnadu06-2012
Skills
- PST COMMISSIONING
- PSV
- PRV Instrumentation
- LOOP TEST
- STROKE TEST
- CALIBRATION
- Gas Modular Skid GMS
- Troubleshooting
- Gas detector Alignment
- Plant Documentation
- Panel powering up Functional Test
- Compressors
- Pumps
- MOV
- Turbine
- Commisioning and Installation
- Preventive Maintanance
Languages
- Tamil
- English
- Malayalam
- Arabic
Timeline
Senior Instrument Technician
Raiply Malawi Ltd
07.2025 - 09.2025
Senior Instrument Technician (Shutdown)
Bilfinger Deutsche Babcock Emirates
04.2025 - 05.2025
Senior Instrument Technician (Shutdown)
Exceltech Solutions Sdn Bhd
08.2024 - 01.2025
Senior Instrument Technician
Zamil Heavy Industry Ltd
11.2022 - 10.2023
Instrument Technician (Shutdown)
Bader Al Mulla Engineering
11.2021 - 02.2022
Instrument Foreman
Sinopec Tenth Engineering
09.2019 - 01.2021
Instrument Technician
Sepco Oil and Gas Industry
08.2016 - 08.2018
Maintenance Instrument Technician
MS Franklin IME Technology
12.2013 - 12.2016
Diplomo in Instrumentation -
Indian Institute of Industry Interaction Education
ITI -
K.V.S.I.M Trust