Mirza Usama

Experience

• 

  Pak Elektron Limited

  Jun 2019 - Jul 2019

  Summer Internship
• 

  Halmore Power Generation Company

  May 2020 - Oct 2020

  Associate Engineer

  • JSA, safe work procedures, Health and Safety compliance and assurance• Static frequency converter & Excitation system maintenance • VTs, CTs, accuracy and knee point testing as per equipment class. • Routine maintenance of switchgear, Starters, Breakers i.e., VCBs/ACBs and auxiliaries • Instrument Control loops checking and verification. • Shift jobs reporting [i.e., Log sheets for process parameters etc • Thermography inspection and preventive measures • Replacement of typical contactors with vacuum contactors • Is limiter testing and its signal incorporation on SCADA HMIs Show less

• 

  Fatima Group

  Oct 2020 - Nov 2021

  Graduate Trainee Engineer

  • 440v/6Kv/11Kv GIS/metal-clad Switchgear (OCB, ACB, SF6, VCB) Routine/TA Inspection & maintenance [interlock checks, Megger, Auxiliary switches operation test , Relay testing (i.e., 7SJ, Simocode) etc] • Turbo generator maintenance [Stator, Pilot alternator megger, AVR, Excitor winding and diode cleaning, Plug in relay testing etc] • Transformer inspection and maintenance [Oil BDV test, DGA, Centrifugal oil cleaning, Tap changing switch & Buchholz test, etc] • Critical and Non-critical spares inventory management (Oracle) • LV/MV Motors area and workshop inspection and testing [IR and resistance check, complete overhauling i.e., penetrant test, var-nish, air gap check, alignment etc] • Overhead crane, Local switches, DBs, JBs inspection and maintenance. • Power cable selection and underground laying as per standards for new arrangements • HVAC System Maintenance [Clean blowers and motor starters, check batteries, thermostat, gas leakages, coils etc] • PSM enforcement [Emergency preparedness, PSSR, HAZOP etc] • Emergency shutdown trainings & keep up the TNA process. • Area instruments (MOVs, general valves, transmitters etc) maintenance [process parameters checking, calibration, process connections check etc] • Electrical support services for; welding, cryogenic cleaning etc • Fire Alarm System (GE Est, Notifier, Kentec) maintenance [MCPs, controllers, smoke detectors , buzzers etc] through proper safety defeat procedures Show less

• 

  FPCL (FFBL Power Company Limited)

  Nov 2021 - Oct 2022

  Electrical & Automation Security Engineer

  • Developing and implementing electrical and automation security measures to safeguard critical infrastructure • Conducting risk assessments and vulnerability assessments to identify potential security risks in electrical and automation systems.• Collaborating with cross-functional teams to design and implement security solutions in compliance with industry standards• SCADA System, ABB 800XA & SIEMENS Simatic S7-400 Trouble-shooting & Maintenance [I/O cards inspection, Loop checks, HMI’s updates, new terminations etc]• 440v/6Kv/13.8Kv GIS/Metal-clad Switchgear (ACB, SF6, VCB) Routine/TA Inspection & maintenance [interlock checks, Megger, Auxiliary switches operation test , Relay testing (i.e., REF615, SEP383, RET615) etc] • Plan, design, approve & execute new facilities and amendment as per Management of Change procedure (MOC).• Transformer inspection and maintenance [Oil BDV test, DGA, Centrifugal oil cleaning, Tap changing switch & Buchholz test, etc] • LV/MV Motors inspection and testing [Megger, resistance check, dismantle and check bearings, seals, rotor, stator, fan, dye penetrant test, varnish, air gap etc] • VFD and Soft Starters maintenance [thyristors replacement, operational test, terminals tightening, Update log sheets etc] • Power cable selection and underground laying as per standards for new arrangements. • Bently Nevada, vibration system maintenance [Probes, transmitters, power supply, I/O cards, LEDs status routine check] • Area instruments (MOVs, general valves, transmitters etc) maintenance [process parameters checking, calibration, process connections check etc] • Planning of job scope, review bids and engage contractors • CCTV cameras maintenance [cleaning, LAN switches, new installations etc] • PM and CM job scheduling and execution of critictal and non-critical instruments through SAP System • Root cause analysis of failures and incidents • Safety observations reporting and closures [PTW system] Show less

• 

  ACET Solutions

  Oct 2022 - now

  • Proficient in OT security best practices and standards (ISA/IEC 62443, NIST Cybersecurity Framework, etc.)• Experience with ICS security assessments, vulnerability identification, and mitigation strategies.• Expertise in Firewall (Fortinet/Paloalto) installation and configurations, intrusion detection/prevention systems (IDS/IPS) i.e., Nozomi and Trellix etc.• Familiarity with industrial protocols (Modbus, DNP3, PROFINET, etc.) and their security implications.• Understanding of physical security measures for electrical and automation systems.• Collaboration with IT security teams to ensure coordinated security posture.• Expertise in implementing network segmentation strategies to isolate critical systems and minimize attack surface.• SIEM deployment with SCADA system. Development of complete system architecture w.r.t Purue model and configurations of each system such as Nozomi, Firewall, Switches, AD/DC, SIEM, WSUS server, IPS etc.• Develop use cases w.r.t OT environment in Splunk to secure OT environment from internal and external attacks. Show less

  • OT Cybersecurity Engineer II

    Mar 2024 - now

  • OT Cybersecurity Engineer I

    Oct 2022 - Mar 2024