Pishro Karafarinan is a company that installations and repairs of electromechanical equipment.My responsibilities:◦ Troubleshooting and repairing electronic circuit boards, identifying faulty components.◦ Providing technical consultation to customers over the phone, email, or in person to resolve hardware-related issues.◦ Maintaining accurate records of repairs, including documentation of issues encountered, solutions applied, and parts replaced.◦Drafting troubleshooting guides or manuals to assist users in resolving common hardware problems independently.

ESM Company is a technical subcontractor for Iranian major telecommunication companies like Irancell and MCI company based in Tehran.My responsibilities: ◦ Working as a assistant project coordinator in a project FLM ( First Line Maintenance). ◦ Project documentation including Total Weekly Report, Microwave point-to-point links, Unit Installation. ◦ Served as a coordinator between managers and engineers in the Philippines project. ◦ Documentation and technical analysis of BTSs (Base Transceiver Stations) installation reports in the Philippines.

Namad Moshaveran Ertebat Donya Company, headquartered in Tehran, serves as a technical subcontractor for prominent Iranian telecommunications companies such as Irancell, RaighTel, and MCI company.Main Responsibilities: ◦ Responsible for the FLM (First Line Maintenance) project. ◦ Preparation, comprehensive documentation and technical analysis of FLM Project activities, including results in weekly FLM Total Reports. ◦ Conducted detailed analysis of line of sight for both transmit and receive sites, evaluating candidates and addressing any line of sight issues to ensure optimal transmission quality.◦ Unit Installation Reports: documenting the installation of a range of units, including CLUs, BBUs, fibers, power cables, feeders, jumpers, and connectors (½, 7/8, SMB).

Matlab and Pspice software to undergraduate students.