Sivakumar C shaji

Calibrated a wide range of instruments including pressure gauges,
relief valves, flow meters, temperature sensors, level indicators,
pressure testing equipment, and gas detectors.
Performed third-party inspection for equipment and units used in oil
and gas exploration, production, and refining.
Ensured calibration procedures complied with API, ISO, and ASME
standards.
Maintained comprehensive calibration records, certificates, and
equipment historyfortraceabilityand compliance.
Participated in ISO and GAC audits by preparing documentation and
supporting audit activities.

Performed calibration for mechanical, electrical, and thermal
instruments both in-house and onsite.
Carried out calibration workfor reputed organizations including ISRO,
Legal Metrology Department, BPCL, and others.
Ensured compliance with quality standards and NABL accreditation
requirements.
Maintained ISO/IEC 17025 certification and supported NABLaudits.
Implemented preventive maintenance measures to reduce
equipment downtime, calibration delays, and repaircosts.

Assisted daily production operations in the hydraulic machinery
manufacturing workshop.
Supported assembly of hydraulic machines and related components.
Conducted preliminary quality inspections and verified component
accuracy.
Ensured machines met functional and design specifications.
Coordinated workflow from raw material processing to final machine
assembly.