Hariharan D has over 9 years of experience as an electrical supervisor and technician in oil, gas, and petrochemical plants. He is skilled in maintenance, installation, commissioning, and troubleshooting of electrical equipment. Some of his responsibilities include ensuring safety standards are followed, coordinating maintenance work, and providing training. He has worked on projects in Angola and Saudi Arabia. Hariharan holds a diploma in electrical engineering and has attended various technical training courses.