sajjad safdar

Admin and Accounts officer at United Charter Schools - A Project of Beaconhouse
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Contact Information
us****@****om
(386) 825-5501
Location
Karachi Division, Sindh, Pakistan, PK

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Experience

    • Pakistan
    • Primary and Secondary Education
    • 1 - 100 Employee
    • Admin and Accounts officer
      • Sep 2022 - Present

      All admin work including cash dealing, monthly closing, software updates, daily income expense record, inventory of office stationery and household items, staff salaries. Hiring and conducting basic interviews of candidates. Academic work including Daily lesson plans, worksheets preparation for Pre primary and primary sections. TAGS printing, School circular preparations and others. All admin work including cash dealing, monthly closing, software updates, daily income expense record, inventory of office stationery and household items, staff salaries. Hiring and conducting basic interviews of candidates. Academic work including Daily lesson plans, worksheets preparation for Pre primary and primary sections. TAGS printing, School circular preparations and others.

  • The Ideal School
    • Karachi Division, Sindh, Pakistan
    • Administrator
      • Dec 2020 - Aug 2022

      All admin work including cash dealing, monthly closing, software updates, daily income expense record, inventory of office stationery and household items, staff salaries. Hiring and conducting basic interviews of candidates. All admin work including cash dealing, monthly closing, software updates, daily income expense record, inventory of office stationery and household items, staff salaries. Hiring and conducting basic interviews of candidates.

  • Explore School System
    • Faisalabad District, Punjab, Pakistan
    • Teacher
      • Feb 2020 - Aug 2020

      Teaching mathematics, physics and science subjects from Grade 8 to 12 students. Coaching and tutoring matriculation, intermediates and O level students at academy and online. Future career consulting to students. Teaching mathematics, physics and science subjects from Grade 8 to 12 students. Coaching and tutoring matriculation, intermediates and O level students at academy and online. Future career consulting to students.

    • China
    • Telecommunications
    • 700 & Above Employee
    • Rollout Engineer
      • Feb 2018 - Dec 2019

      Supervising field teams in performing SSVs, escalating issues commencing during drive test with all concerns. SSV verification with in team and with customer for approval. Analyzing integration reports of new sites based on Drive Test and neighbor analysis. (CSFB, Reselection, PS attached /detach, Ping test, IRAT HO, DL/UL Throughput initial testing). RF initial Fine Tuning for 3G and 4G. Supervising field teams in performing SSVs, escalating issues commencing during drive test with all concerns. SSV verification with in team and with customer for approval. Analyzing integration reports of new sites based on Drive Test and neighbor analysis. (CSFB, Reselection, PS attached /detach, Ping test, IRAT HO, DL/UL Throughput initial testing). RF initial Fine Tuning for 3G and 4G.

  • ZTE Corporation
    • Faisalabad, Punjab, Pakistan
    • RF Consultant (GSM/UMTS)
      • Nov 2016 - Dec 2017

      Analyze network coverage Key Performance Indicators (Accessibility, Mobility & Retainability) of assigned region (Faisalabad, Highway M-3 and M-4), worst cell analysis and action taken to resolve worst performing cells. Preparation of optimization reports (Hardware Tracker, Utilization report, Neighbor inconsistency report, worst cells). Supervising filed engineers to solve specific issues, complaints, and problem solution to achieve KPIs targets.  Feature Implementation 4G 1. Fast Return to LTE, 2. RIM_reduce CST of LTE, 3. Time to Trigger & A3 Offset_HSR, 4. Traffic dimensioning, 5. CFI_throughput Trial, 6. Frequency Selection scheduling, 7. Open loop MIMO & Close loop MIMO Adjustment, 8. TCP Re-ordering trial.  Feature Implementation 3G 1. DL DPCH power optimization, 2. Dynamic RoT_TP_DCR, 3. Power Share_hspaPwrRatio _TP HSDPA^R99, 4. Dynamic MPO, 5. EnhanceHoSwch_HSR_DCR, 6.User Retention_UInterRscpEvMeasforG_URatRscpEvMeasforG, 7. qoffset2SNSib11_Dragging U900, 8. HS-PDSCH Code NodeB Assignment Support Indicator_Code congestion, 9. CPICH _ Power congestion, 10. Load Base CQI Adjust, 11. Cell_FACH to CELL_DCH retention, 12. paShareRatio_Power congestion, 13. RACH TTI_Rach Utilization, 14. RRU Cascading, 15. qualMeas_U900 Reselection, 16. Fast return to UMTS.  Feature Implementation 2G 1. egprsCodecInitUl/DL_TBF Drop, 2. psAllocSc_TBF drop, 3. DynMCCCHSupport_Paging Discards, 4. linkQuaMeaMode_TBF Drop, 5, hoControlRapidLevUl_HOSR, 6. freqOffsetCorect_HOSR, 7. hrDfragSupport_Quality_PS CH, 8. HoToInnerSc_HOSR-DCS, 9. hoCmdMaxPwr_HOSR_DCR, 10. UseLoadBalance_HOSR, 11. Precise Paging_LAC paging improvement, 12. PS preempt CS support_PS Ch. 13. dlDelayTime_extUlTBFTime_TBF Drops, 14. CDT for IMSI Collection. 15. Ctlorder_TBF Drops, 16. Access control Show less

    • China
    • Telecommunications
    • 700 & Above Employee
    • Senior RF Engineer
      • Apr 2016 - Aug 2016

      2G network optimization and tuning of KPI’s Accessibility, retainability, Integrity and mobility.The KPI’s like call drop rate, Sdcch drop rate, SDCCH congestion, TCH congestion, Handover success rate, Bit error rate, RXqual, RXlevel etc. Checking interference level both external and internal by checking frequency co-channel/adjacent channel. For external interference check Hourly KPI’s to pick the specific hour where ex-interference hit. 3G KPI improvement such Accessibility, retainability, Integrity & Mobility. The KPI’s such as CSSR, Call connection Rate (CCR), Drop Call, Hsdpa Drop, EUL Drop, Uplink RSSI, Total wideband power etc. Good experience of High traffic site to offload traffic sites such Asignment to worst cell, CRO etc. Providing technical assistant for Drive test for 2G/3G Pre integration of the site. Performed optimization and initial tunings by detailed analysis of Call Events (Drop Call, Call Block, HO Fail) by analyzing Layer 2/3 messages, RSCP, Ec/No, UE TX Power, Power Control, Cell Parameters and Neighbor List. Optimizing/ Analysis of IRAT HO failures, 3G to 3G Intra system (Soft / Softer HO), and post processing of the drive test data and recommend parameter changes, Site verification report. Innovative use of radio network parameters, features and other techniques to improve the performance of the 3G radio networks, In depth analysis of UETRs, CTR and GPEH. Producing 3G to 3G & 3G to 2G Neighboring plan and Analysis of 3G to 2G Hard Handover etc. primarily responsible for all KPIs call scenarios for the performance management of the Network. Call Test consists of MO, MT, voice calls, Data calls, handovers checking etc. Diagnose all RF related problems such as Interference, call quality, Drop calls, HO failure, Missing neighbors, Capacity crunch and Cross feeder detection. Detailed Analysis for the drive test, trouble shooting carried out for Inter RNC Hand-Over failures. Performed IRAT optimization to fix drops. Show less

    • United States
    • Telecommunications
    • 200 - 300 Employee
      • Mar 2015 - Dec 2015

      • Coordinate with teams & provide Technical support.• Manage Teams for activities and help out them identifying run time issues during DT & provide solution & escalate issues to concerns departments for their overcome.• 3G Post processing using Actix & MapInfo.• Making SSV, Cluster & Benchmarking Reports.• Identifying 3G Call Drops, Low RLC throughput, Failed or delayed HOs, IRAT HOs, IRAT Cell Reselections, Pilot pollution and coverage issues. Optimization of GSM sites based on Coverage_Rx Level, Quality_Ec/Io, Pilot pollution.• Proposing new sit after analysis of coverage issue. Coverage by skewing sectors, down tilt/Up tilt, power increase/decrease by using better antenna gain.• Site Auditing and Verifying Hardware, Tilt, Antenna height and Orientation, According to the site database• Analyzed the Drive test log files using TEMS Investigation. Find the swap, Interference in the sites during the optimization & resolve the swap .Missing neighbors, Soft Handover using drive test data’s. Show less

      • Sep 2014 - Dec 2015

      Worked as 3G Drive Test Engineer in South region.3G-3.5G / UMTS DT (RF Drive Test)• Performed Drive testing (cluster, SSV) using TEMS Investigation 15.3.1 and 16.1.• Complete Single Site Verification.• Audio call, video call, SMS, Cell Reselection, IRAT.• R99, HSDPA, HSUPA.• Site Audit.

  • R
    • Central region Zong Lahore
    • RF Optimization Engineer
      • Nov 2013 - Feb 2014

      3G-3.5G / UMTS DT (RF Drive Test), DATA ANALYSER, C0- 0rdination & FIELD OPTIMIZATION • Performed Drive testing (Idle, dedicated) using TEMS Investigation for GSM network and MapInfo. Post processing of Drive test log Files to identify the RF related problems ,To do sites coordination with site engineers, Site Supervisors and Subcontractors and solve technical issues. • Optimization of UMTS sites based on Coverage_RSCP, Quality_Ec/Io, Pilot pollution, Missing neighbors, Soft Handover using drive test data’s. Optimize to improve Ec/Io (Reduce Pilot Pollution) by improving RSCP of dominant cells and reducing coverage (Interference) of less dominant sectors through antenna Tilt changes and power changes, thus rectify the overshooting sectors issues. • Checking Co scrambling code issues. Adding missing 3G-3G neighbors and deleting the long neighbors using scanner measurements. Inter RAT handover analysis and correction. • Primary verification of drive data and taking necessary corrective measures, like Neighbor addition and deletion and interference analysis. Providing appropriate Tilts (Electrical /Mechanical) to reduce the interference or improve the coverage. 3.5G DRIVETEST - HSDPA & HSUPA drive testing for checking throughput in Network. HSDPA parameters like CQI, Modulation etc RF Drive testing 2G/2.5G 900/1800 • Optimization of GSM sites based on Coverage_Rx Level, Quality_Ec/Io, Pilot pollution. • Proposing new sit after analysis of coverage issue. Coverage by skewing sectors, down tilt/Up tilt, power increase/decrease by using better antenna gain. • Site Auditing and Verifying Hardware, Tilt, Antenna height and Orientation, According to the site database • Analyzed the Drive test log files using TEMS Investigation. Find the swap, Interference in the sites during the optimization & resolve the swap .Missing neighbors, Soft Handover using drive test data’s. Show less

    • Trainee engineer electrical
      • Mar 2010 - Aug 2010

      Supervision and control of Electrical equipments, PLCs. • Control and trouble shooting of printing machines (HEIDELBERG, KOMORI, CERUTTI). • Control and trouble shooting of Die cutting machines (BOOBST). • Control and trouble shooting of Pasting machines (BOOBST). Supervision and control of Electrical equipments, PLCs. • Control and trouble shooting of printing machines (HEIDELBERG, KOMORI, CERUTTI). • Control and trouble shooting of Die cutting machines (BOOBST). • Control and trouble shooting of Pasting machines (BOOBST).

    • Site Build Supervisor
      • Aug 2009 - Mar 2010

      Electrical & Earthing work inside and outside shelter. • Site Layout as per drawing and location. • Supervision of erection work of telecom towers, equipment shelters/ODU shades for different clients. • Supervision of electrification work of equipment shelters/ODU Sheds. • Mobilization of supervisors to the sites in region. • Organize and helps sub cons to effectively perform their tasks. • To prepare sites construction schedule and coordinate with teams. • Report preparation, site signing off, site inspection, PAC & FAC with client. • Technical Site Survey (TSS) with Client and internal. • Preparation and submission of Technical Site Survey Report (TSSR) to the client and internal. Show less

    • Telecommunications
    • 1 - 100 Employee
    • Project Engineer
      • 2008 - 2009

      Click to edit position description• Coordinate with teams & provide Technical support. • Manage Teams for activities and help out them identifying run time issues during DT & provide solution & escalate issues to concerns departments for their overcome. • 3G Post processing using Actix & MapInfo. • Making SSV, Cluster & Benchmarking Reports. • Identifying 3G Call Drops, Low RLC throughput, Failed or delayed HOs, IRAT HOs, IRAT Cell Reselections, Pilot pollution and coverage issues. Optimization of GSM sites based on Coverage_Rx Level, Quality_Ec/Io, Pilot pollution. • Proposing new sit after analysis of coverage issue. Coverage by skewing sectors, down tilt/Up tilt, power increase/decrease by using better antenna gain. • Site Auditing and Verifying Hardware, Tilt, Antenna height and Orientation, According to the site database • Analyzed the Drive test log files using TEMS Investigation. Find the swap, Interference in the sites during the optimization & resolve the swap .Missing neighbors, Soft Handover using drive test data’s. Show less

Education

  • Blekinge Institute of Technology
  • Carinthia University of applied sciences
    Master's Degree, Electrical, Electronics and Communications Engineering
    2011 - 2013

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