Felix S. Estrera Jr.
Angono,Philippines
Summary
Telecommunications professional with extensive experience in terminal and communication equipment, including Nortel DMS100 GSM MSC/VLR/HLR and Motorola systems. Proficient in technical troubleshooting, preventive maintenance, and quality assurance. Expertise in project coordination and system performance enhancement, with a strong focus on mentoring junior engineers. Committed to advancing telecom infrastructure while ensuring operational excellence. Skilled Telecom Engineer with knack for solving complex technical issues and enhancing network performance. Delivered significant improvements in system uptime and streamlined installation processes, resulting in improved customer satisfaction. Known for clear communication and collaboration with team members and clients to achieve seamless project execution.
Overview
23
23
years of professional experience
5
5
years of post-secondary education
Work history
Communication Engineer
SAUD Business Solution
Jeddah
06.2022 - 08.2025
- Check, review and recommend for a revision of appropriate Preventive Maintenance (PM) checklist for every IT system be monitoring and discuss further to a Aramco Management for a proper implementation with the O&M Contractor of KASCO (King Abdullah Sport City Operation Department)
- Closely monitor contractor’s performance activity in all IT System on daily/ weekly/monthly/None-Even and Pre-Even in the basis.
- Ensure that all Activities of Contract as per Company Standard and as per document/as per contract.
- Facilitate in releasing access and work permits to Contractor
- Involved in developing the system and responsible for quality assurance.
- Work as Proponent IT-QA and aims to identify and correct defects in the normal operation as well events. Quality control, therefore, is a responsive process.
- Work as Proponent IT-QA and aims to prevent defects with a focus on the processes used to make the product. It is a proactive quality process.
- Involved in prevention of quality problems through planned and systematic activities including documentation.
- Check, coordinate and recommend to contract if there is any lacking/wrong information in the layout/As-built drawings with regards to telecom and IT system.
- Bldg.A10 Riyadh Business Front, Airport Road Riyadh Saudi Arabia saud@ssbc.com.sa
- Review the approval of work before starting contract release PO work.
- Discuss with Contract and agree how to resolve notified defects/deficiencies within a reasonable time-limit.
- Supervise the operation and maintenance of the Trunk Radio System (TRS), Turnstile Gate, Telecom Rooms and Call System (Nurse Call, Steward Call and Referee Call) daily activities and events scheduled.
- Supervise any telecom contract activity in the existing and expansion GSM Telecom Room.
- Acting as a team leader for the KASCO ID-Services.
- Responsible in overseeing and supervision of operation and maintenance activities of Trunk Radio system, Call System and Turnstile within King Abdullah Sport City (KASC).
- Act as KASCO Coordinator to all GSM Network Provider (STC, Mobily and Zain) for any activity and maintenance they need to schedule within the system in KASC.
- Perform study with site inspection to ensure all activity fall Network Provider follows the procedure with proper engineering standard we have in KASC.
- Conducting inspection, deficiencies and damage report on Trunk Radio system, Call System and including the KASC facilities recommending proper corrections for rectification.
- Ensure the quality of signal of two-way radio in all perimeter within KASC premises during every scheduled events and activity.
- Provide technical advice to contractors as per user and technical in far as any adjusting operation parameter set points and rectification of any trouble indication of Trunk Radio system, Call System and Turnstile and equipment.
- Coordinate with every IT Services personnel and the O&M Contractor to ensure all IT system have the required quantity of spare parts per IT System and equipment who have an immediate rectification to use in special during events.
- Attend communication meeting with O&M contractors have proper escalation of unattended issue in IT system and raised recommendation/suggestion for the enhancement performance and maintaining, operating and rectifying IT system in a short period of time especially during events.
- Upheld health and safety regulations at all times whilst working onsite.
- Ensured compliance with industry standards in all engineering tasks completed.
- Streamlined data transmission with the development of new communication protocols.
- Researched latest technologies in communication engineering for potential implementation.
Communication Engineer IV
Al-Jehat Company
Jeddah
07.2015 - 05.2022
- Check, review and recommend for the revision of appropriate Preventive Maintenance (PM) checklist for every IT system be monitoring and discuss further to the Aramco Management for the proper implementation with the O&M Contractor of KASCO (King Abdullah Sport City Operation Department)
- Closely monitor contractor’s performance activity in all IT System on daily/ weekly/monthly/None-Even and Pre-Even in the basis.
- Ensure that all Activities of Contract as per Company Standard and as per document/as per contract.
- Prepare a monthly/quarterly Contract Performance Appraisal.
- Facilitate in releasing access and work permits to Contractor
- Involved in developing the system and responsible for quality assurance.
- Work as Proponent IT-QA and aims to identify and correct defects in the normal operation as well events. Quality control, therefore, is a responsive process.
- Work as Proponent IT-QA and aims to prevent defects with a focus on the processes used to make the product. It is a proactive quality process.
- Involved in prevention of quality problems through planned and systematic activities including documentation.
- Check, coordinate and recommend to contract if there is any lacking/wrong information in the layout/As-built drawings with regards to telecom and IT system.
- Review the approval of work before starting contract release PO work.
- Discuss with Contract and agree how to resolve notified defects/deficiencies within a reasonable time-limit.
- Supervise the operation and maintenance of the Trunk Radio System (TRS), Turnstile Gate, Telecom Rooms and Call System (Nurse Call, Steward Call and Referee Call) daily activities and events scheduled.
- Supervise any telecom contract activity in the existing and expansion GSM Telecom Room.
- Responsible in overseeing and supervision of operation and maintenance activities of Trunk Radio system, Call System and Turnstile within King Abdullah Sport City (KASC).
- Act as KASCO Coordinator to all GSM Network Provider (STC, Mobily and Zain) for any activity and maintenance they need to schedule within the system in KASC.
- Perform study with site inspection to ensure all activity fall Network Provider follows the procedure with proper engineering standard we have in KASC.
- Conducting inspection, deficiencies and damage report on Trunk Radio system, Call System and including the KASC facilities recommending proper corrections for rectification.
- Ensure the quality of signal of two-way radio in all perimeter within KASC premises during every scheduled events and activity.
- Provide technical advice to contractors as per user and technical in far as any adjusting operation parameter set points and rectification of any trouble indication of Trunk Radio system, Call System and Turnstile and equipment.
- Coordinate with every IT Services personnel and the O&M Contractor to ensure all IT system have the required quantity of spare parts per IT System and equipment who have an immediate rectification to use in special during events.
- Attend communication meeting with O&M contractors have proper escalation of unattended issue in IT system and raised recommendation/suggestion for the enhancement performance and maintaining, operating and rectifying IT system in a short period of time especially during events.
- PO Box 2173, Dammam 31451 Email- info@jatco.com
Construction Supervisor
Samsung Engineering
Shaybah
10.2012 - 11.2013
- Check, review and recommend for a revision of layouts/drawings based on the Aramco Standard if necessary needed especially for installation to the engineers inside of the main contract first them without any further action escalate to the PMT to discuss further to the Aramco Project Management.
- Provide red-lined as-built to the drawing with appropriate issue/reason as per actual construction.
- Check and review all the material and equipment needed for installation.
- Supervise with sub-contractors and direct contractors for all the buildings and outside plant construction.
- Immediately coordinate to the sub-contractor’s management especially its supervisor/foreman to discuss a better idea according to the site construction situation.
- Able to read and understand engineering and construction drawing.
- Immediately coordinate engineering staff if there is any lacking/wrong information in the drawing.
- Escalating issue immediately to the appropriate management/department hierarchy especially having concern to other discipline/department have an immediate and timely action to avoid delay and construction.
- Providing daily report with the corresponding progress, issues and schedule work.
- Provide look-ahead report with coordination of different department with related to connection to our work schedule.
- Actively providing Management with information and recommendations for improvement of work system in site construction.
Work Permit Receiver
Samsung Engineering
Shaybah
10.2012 - 11.2013
- Check properly the permit that issue prepared via a joint walk through to the exact location where the activity of the permit.
- Coordinate to the exact people or team who will conduct the activity to assure the head count appropriate personnel and the activity with proper PPE and its materials/equipment that they will use in the mention activity.
- Assure first all the materials, equipment and manpower with its proper PPE before signing the permit to avoid any accident and delay of the activity.
- Monitor the whole activity until to the expiration time of the permit.
- Mandatory to and immediately escalate to the concern team/department of the activity if there is any issue happen in the middle of the activity.
- Properly endorse or hand-over to the next receive the activity if the issue allowed to extend the time frame prior to the call of urgency of the activity.
- Closed the permit with the joint walk through with the issue to check properly if there are any unwanted materials/equipment on the site did not pull-out by the concern team worked on the specified area on the permit.
- ID Details:
- ID No: 2334871833
- Certificate No: RT-297-12
- ID Validity: 02/05/2015
- Work Permit Area: Hot Work, Cold Work, Confined Space Entry and Release of Hazardous Liquid or Gas
Senior Service Desk Technician
Emirates Integrated Telecommunication Company, Dubai UAE (DU TELECOM)
Dubai
10.2007 - 12.2011
- Handling all as first-line Customer liaison for both Carrier (IGW) and Local Customer on Fixed and Mobile (Consumer and Enterprise).
- Identifying Customer technical problems, issues and complaints
- Coordinating second-line and third-party support groups
- Monitoring and escalating procedures relative to appropriate SLA
- Keeping Customers informed on request status and progress
- Managing the request life-cycle from verification to closure.
- Communicating planned short-term changes of service levels to Customers
- Actively providing Management with information and recommendations for service improvement
- Providing Customer training and education needs
- Closing incident and assuring information with the Customer
- Recording and tracking incident and complaints
- Making initial assessment of customer requests then offering solutions if beyond the scope of work and responsibilities making referrals to appropriate process personnel who can provide required services based on agreed service levels
Switch Operation and Maintenance Engineer
NEXT MOBILE PHILIPPINES (formerly NEXTEL Phils.)
Manila
10.2004 - 10.2007
- Performs troubleshooting to all MSO equipment system faults including dc/power
- Handle preventive and corrective maintenance activities including system backups of all network elements (MSC/HLR, Motorola GP/BSC/XCDR/PSP, OMC).
- Ensure highest operating condition by carrying out periodic system check-up on all hardware and peripherals (MSC/HLR, Motorola GP/BSC/XCDR/PSP, OMC)
- Monitor condition of cell sites, reports any abnormalities, service affecting troubles observed. Responsible providing solutions in such problems to concerned groups.
- Record of billing and dumping tapes.
- Provide support to the Service Center for call management set-up maintenance and reporting.
- Handle subscriber roaming issues and make resolutions for roamer’s complaints
Network Management System (NMS) Engineer
Next Mobile Philippines (formerly NEXTEL Phils.)
Manila
06.2004 - 10.2004
- Enhance and simplify network administration operation and maintenance to ensure high performance and reliability and reduces system downtime.
- Provide accurate and timely Traffic and Performance reports to monitor system performance and traffic loading.
- Produce regular reports on the performance and efficiency of the system. Provide analysis in such.
- Maintain Network security, optimization and reliability.
- Assist the RF group in Network Optimization, Performance and Management and Configuration Management
Field Technician
Chain Marketing Corporation Tech. Service Corp.
Manila
04.2002 - 06.2004
- Responsible for performing testing, installation, commissioning, monitoring, troubleshooting, maintenance of the following communication equipments:
- PABX (Panasonic)
- CCTV cameras
- Fax machines
- Copiers
- Designing cable layout for PABX and CCTV.
- Install and demonstrate office automation products technically.
- Install and troubleshoot corporate telephones and security surveillance camera
- Identified technical issues to prevent potential malfunctions.
- Conducted site surveys to facilitate project planning.
- Improved system performance by conducting regular maintenance checks.
- Prepared detailed reports, increasing transparency in operations.
- Facilitated client meetings with comprehensive technical support.
Education
Bachelor of Science - Electronics and Communication Engineering
Adamson University
Manila, Philippines 01.1996 - 01.2001
Skills
- TERMINAL AND COMMUNICATION EQUIPMENT HANDLED
- Nortel DMS100 GSM MSC/VLR/HLR
- Motorola Tandem Dispatch Application Processor
- Motorola Base Station Controller, Transcoder and Base Transceiver Station
- Sun Microsystems Enterprise 3500 OMC-R
- ADC NewNet Short Message Services
- Tellabs Titan 532 Digital Access Cross-Connect System
- Tellabs Echo Canceller
- Coherent EC6000E1 Digital Echo Canceller
- TEST EQUIPMENT HANDLED
- Intercept 47
- TTC 2230
- 77HP/6 and Hound 2
- HP J2302B
- Wandel & Goltermann RA441
- Tektronix 1205
- Dolch PAC 586
- Tone Tracer and Generator
- Technical troubleshooting and problem solving skills
- Excellent coordination skills
- Computer literacy
- HPSM and HPSD
- AutoCAD (2D)
- Siebel
- Visio application
- Microsoft Office application
- Basic UNIX commands operating system
- FTP PRO, CRT, PROCOMM PLUS, HYPERTERMINAL and Telnet
- Good oral and written communication skills
- Preventive maintenance planning
- Quality assurance processes
- Technical troubleshooting
- Telecom system supervision
- Defect resolution strategies
- IT system monitoring
- Incident reporting
- Project coordination
- Documentation standards
- System performance enhancement
- Electrical schematic reading
- Mentoring junior engineers
- Technical language proficiency
TECHNICAL TRAININGS AND SEMINARS
- Microwave System Design Workshop (New Era College, Quezon City, November 23, 2001)
- Telephone Etiquette, File and Time Management Seminar (Adamson University, Manila, January 20, 2001)
- Stress Management Seminar (Adamson University, January 24, 2001)
- Structured Cabling System (PERDC Review Center, Manila, January 20, 2000)
- TV, VCD and VHS Record and Troubleshooting (Oriental Technology Institute, Sta. Cruz, Manila, March 19, 2000)
- Career and Development Seminar (ECE) (Adamson University, Manila, November 22, 2000)
- Information Technology (S.T. Auditorium, Adamson University; December 2, 2000)
PERSONAL PROFILE
- Age: 35 yrs. old
- Date of Birth: July 30, 1979
- Birthplace: Quezon City
- Nationality: Filipino
- Civil Status: Married
- Father: Mr. Felix A. Estrera
- Occupation: Unemployed (former Family Driver)
- Mother: Mrs. Francisca S. Estrera
- Occupation: Housewife
CHARACTER REFERENCE
Available upon request
Timeline
Communication Engineer
SAUD Business Solution
06.2022 - 08.2025
Communication Engineer IV
Al-Jehat Company
07.2015 - 05.2022
Construction Supervisor
Samsung Engineering
10.2012 - 11.2013
Work Permit Receiver
Samsung Engineering
10.2012 - 11.2013
Senior Service Desk Technician
Emirates Integrated Telecommunication Company, Dubai UAE (DU TELECOM)
10.2007 - 12.2011
Switch Operation and Maintenance Engineer
NEXT MOBILE PHILIPPINES (formerly NEXTEL Phils.)
10.2004 - 10.2007
Network Management System (NMS) Engineer
Next Mobile Philippines (formerly NEXTEL Phils.)
06.2004 - 10.2004
Field Technician
Chain Marketing Corporation Tech. Service Corp.
04.2002 - 06.2004
Bachelor of Science - Electronics and Communication Engineering
Adamson University
01.1996 - 01.2001