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Test Lead Resume

Reston, VA

PROFESSIONAL EXPERIENCE:

Test Lead

Confidential, Reston, VA

Responsibilities:

  • Contributing on a multi - functional team of Interoperability testing, responsible for testing 4G / 5G Radio Access Network Technologies
  • NB-IoT and CAT-M1 testing on host FDD 1900 MHz band on a 10 MHz channel bandwidth. TCP and UDP UL/DL throughput impact analysis on host LTE with and without IoT and CAT-M Confidential different coverage levels. validating software loads delivered by OEM Vendors for RAN products, creating test requirements, test plans, detailed test procedures, performing test activities and troubleshooting SW/HW issues on RAN elements.
  • Ability to articulate lab requirement based on field issues, setup end to end system test & mimic lab environment quickly to recreate field issue - involving provisioning of UEs
  • Ability to automate test reports using the Automation framework
  • Prepare & support RAN testing Entry, develop test environment, test cases, reporting template and ensure test setup capability.
  • Extensive working experience on designing the RAN test cases complying to the 3GPP specification, compare test cases with the latest 3GPP releases and keep the test plan updated.
  • Hands on experience on RAN (interoperability) testing on the X2 / S1 interface between the Various Vendors
  • Validate RAN test environment, Execute Test Plan, Report Test issues & failures
  • Ability to articulate lab requirement based on field issues, setup end to end system test & mimic lab environment quickly to recreate field issue - involving provisioning of UEs
  • Ability to troubleshoot issues and get into technical discussions with OEM R&D team. Strong analytical, communication and troubleshooting skills - Ability to multitask in a fast-paced environment.
  • Well versed with Software development testing process - usage of Test management tool, Report generation, Bug tracking & working with development team & field support team for issue resolution.

RAN Engineer

Confidential, Reston, VA

Responsibilities:

  • Testing New Software loads (Adversarial Testing)
  • Testing New Feature and supporting regression testing using XCAL / XCAP and Confidential tools.
  • Making sure there is no degradation in Downlink / Uplink throughput after new software upgrade.
  • Making sure there are no issues with VOLTE calls after the new software upgrade
  • Testing Intra/Inter frequency Handover along with Inter Vendor Handover.
  • Supporting Confidential with WPS and other related features to be tested with TM500 Simulator.
  • Supporting CSON team for commissioning and integration of new eNB
  • Creating MOPS for feature validation/activation and software Upgradation.
  • Troubleshooting using Confidential tools like WebEM, BTSM, BTS log, Snapshot, NetAct tools solution to detect, investigate and solve configuration issues.
  • Creating Ticket for Trouble resolution for any issue / error that occur during testing of software load or new feature and follow-up with R&D, and apply the recommendations from R&D Team

Confidential

Sr RF Engineer

Responsibilities:

  • Part of Confidential National Team conducting post launch optimization
  • Supervising Confidential Network performance team.
  • Review daily KPI reports and identify sites with performance degradation issues.
  • Network problem detection and solution methods, e.g., throughput issues, connection drops, blocks, etc.
  • Resource Management functionalities, e.g., handover control, admission controls, capacity management.
  • Monitoring site alarms, doing health check status of sites, and resolve alarms related issues.
  • Parameter Audit for each market, making sure market parameter are following Confidential ATT GPL.
  • Providing Mini Macro (Small cell) and UE Relay technical support
  • Testing BTS’s with latest loads and perform regression testing
  • Testing new feature different eNBs in the lab
  • Performing Airscale BTS(FSM4) Consolidation with MiniMacro and UE Relay
  • Troubleshooting using Confidential internal tools like BTSM,BTS log, Snapshot, NetAct tools solution to detect, investigate and solve configuration issues.
  • Report weekly progress/activity to the customer manager

Confidential

RF Engineer

Responsibilities:

  • PICO Cell deployment
  • Checking Confidential stores for coverage and capacity issues and recommending installation of Ericsson RBS 6402 (Pico Cell) to improve coverage and capacity
  • Managing Data base and RFDS
  • Conducting Macro site walk for deployment of new cell site

Confidential, Chantilly, VA

Sr RF Engineer

Responsibilities:

  • Leading a team involving Small Cell project based on Airunity UE Relay testing to overcome coverage gaps
  • Conducting site walk to find suitable position for small cell installation that is in the direct line of site of the Donor cell
  • Preparing and analyzing pre-post stats using XCAL
  • Making Bench marking report for American Towers (iDAS)
  • Conducting ATP test on 2.5 Ericsson sites in Florida Markets for Confidential
  • Working with Ericsson OSS teams to troubleshoot RF related issues like low throughput, GPL compliance mismatch etc
  • Worked on Confidential Competitive bench marking project that includes 22 Markets including NY, DC and Philly and Florida markets
  • Goal is to improve Confidential on “ROOT Metrics” score in reliability and speed for voice and data by comparing Confidential Root Score with the top performer
  • Post Processing Drive test data using wind catcher and XCAP to analyze for recommendation.
  • Analyzing UE Data for Voice & Data Network Reliability
  • Calculating Voice Setup time and identify areas for high setup time & provide recommendations to minimize the setup time
  • Minimize voice drops & failure by analyzing layer 3 messages & recommend parameter changes. Also recommending any physical change where required.
  • Analyzing Scanner Data for possible interference & PCI Pollution, identifying areas where multiple PCI are serving within 3dB and 5dB range. Provide recommendation to minimize multiple servers. This over all improves the data speed and reliability.
  • Conducting Over Shooter Analysis based on distance by plotting drive test data on Mapinfo
  • Finding available 5MHz EVDO spectrum for channel reframing for low utilization bands to make a 10 MHz LTE FDD Band.
  • Plotting Scanner Data on Mapinfo to identify areas for possible coverage gaps where small cells can be implemented
  • Using Layer 3 messages conducting Reference Signal Power audit for all the sites recorded in the drive test data and identify for any discrepancy from values provided by the national team.
  • Study and Analyze Carrier Aggregation in the market. Provide market with Stats regarding the availability of TDD 2CA, checking parameters activation and de activation times for 2nd TDD carrier and provide recommendations accordingly.
  • Conducting RACH parameter audit using Layer 3 messages from drive test data.
  • Optimizing TAC
  • Making Macros and Templates for Mapinfo to expedite the optimization and reporting processing in order to meet the aggressive deadline
  • Checking the post drive results and submitting summary and detailed analysis report to the market and present to the national and market teams
  • Confidential Multi Band Project 800/1900 MHz, deployment of 2.5 GHz
  • Supporting Macro site design in urban, sub-urban, and rural environments
  • Creates search areas and reviews search area candidates within geographic area by taking into consideration baseline, performance issues, capacity, topography, and population
  • 2500/1900/800 RF design including antenna selection, bulk site creation and pre post coverage analysis to compare pre & post KPIs calculate link budgets to evaluate system performance and reliability based on received signal level and fade margin.
  • Evaluating coverage problems and requirements for coverage and capacity cells.
  • Simulated and evaluated potential candidates (Small Cells) coverage for TDD and FDD frequency bands using mentum planet in urban and sub-urban environments
  • Generated detail candidate reports comprising several statistics like antenna height, distance from target and coverage scores using Alteryx algorithm.
  • Validated each candidate to provide the best possible coverage, avoiding interference from neighboring candidates.
  • Troubleshoot sites from daily top offenders list, create tickets for sites having chronic issues and accelerate these sites to filed tech team. Keep track of these sites and monitor KPIs once the hardware issues are fixed
  • Create objects in NPO for each cluster and monitor KPI’s for each cluster assigned. Recommend parameter changes to improve traffic balancing
  • Analyze Drive data to diagnose coverage and interference issue, recommend tilt changes and neighbor addition
  • Manage traffic balancing between bands 25, 26 and 41. Set parameters to push more traffic to Band 41(2500 MHz) use Band 25 (1900 MHz) and 26 (1900 MHz) as coverage layer.
  • Perform parameter audit and prepare performance report.
  • Implementing Carrier Aggregation, Beamforming and conducting test for multiband load balancing
  • Follow company protocol for integration of new OAC LTE sites.
  • Conducting trials 2C and 2C Aggregation for TDD and 1900 Bands
  • Optimizing 2CA by monitoring Inter/Intra frequency HO, Conducting Neighbors Audit and load balancing
  • Optimizing Idle/Connected Mode parameters (A2, A3, A5-1, A5-2) and conducting trials to get final approval.
  • Optimized the power settings by increasing the carrier power from 7.5W to 10W/carrier and overall 20W/port for the
  • Optimizing TAC for TDD D1/D2 sites
  • Assist national/regional team for Spectrum Reframing by taking stats for adjacent EVDO Channels
  • Monitor Traffic and performance trend on AGOOP, ESOD, Glance and Flux, Coordinate with national team to implement enhanced performance parameters to local market.
  • Minimize call drop rate on sites by fixing issues such as Tx/Rx propagation delay, high FER and pilot pollution
  • Implement IFHO scripts and set hand over thresholds in OMP RAN, run market neighbor list audit
  • Find sites with high eCSFB failure rate and add neighbors to avoid eCSFB failures.
  • Implement bulk parameter changes on SAMB using WPS. Monitor Alarms on SAMB and fetch XCM file for market audits
  • Develop macros and templates to assist & expedite the optimization process
  • Conducting trials on connected mode hand overs thresholds and idle mode cell reselection thresholds, power settings and ANR thresholds
  • Assists in deploying COW sites for special events like Pope visits, or Stadium Sites
  • Analyzing Confidential worst offending sites by studying drive test data and KPI exports
  • Preparing a report on the offending sites or sectors and provide recommendation.
  • This involves prioritizing the LTE multiband and tri-band markets, preparing network validation and device validation test scenarios and supervising the field test teams in executing them.
  • Monitor, process and analyze the incoming drive test data and observe week on week improvements to the focus KPI’s like throughputs, handover, latency, time on band, voice call performance etc.
  • Perform deep dive Layer 3 analysis of the detailed signaling messages to evaluate call failures, reconnection failures, call drops, unsuccessful handover attempts and report observations via executive summaries, present recommendations and problem solvers to the clients RAN engineers.
  • Decreased the overall time spent on generating Microsoft excel reports by writing multiple macros that led to a 60 to 70% decrease in time spent for weekly deliverables, thereby ensuring before time delivery to client.
  • Subject matter expert in RF Optimizations Methods using tunable parameters, link budgets, antenna configuration, and through knowledge of various test equipment.
  • Co-ordinated with multiple RF engineers and played a pivotal role in making and presenting the final recommendations for client’s network optimization

Confidential, Richmond, VA

RF Design Engineer

Responsibilities:

  • Design and overhaul design for UMTS & LTE Overlay Projects
  • Generate RFDS for proposed and approved cell sites
  • Played a pivotal role during RFDS scoping meetings, thereby productively contributing towards all the modifications required for the generation of RFDS for (Carrier add) sites
  • Oversee the on-time delivery of the designs and client’s special request, while maintaining high quality and adhering to the project timeline leading to completely satisfied client
  • Maintain trackers and conduct weekly checks to account for any possible deviation from client’s requirements, escalate the issues via an executive report to the program manager along with insightful recommendations to fix the issues
  • Supervise the execution of issue fixes, while maintaining an action plan and leading the operational units
  • Create action plans for the implementation of the BSS design, in accordance to the scope of work

Confidential

Regional Head -South & Central Region

Responsibilities:

  • Perform offline testing, Online testing and commissioning of BTS, BSC & Transcoder, expansion & reduction.
  • Perform the BTS swap operation.
  • Sweep test for Feeder/Antenna System.
  • Perform engineering Survey of the BSS sites for confirming the availability of proper space, Band pass filters & Dual band combiner according to ALU standard.
  • Raise FRD for equipment gone faulty Confidential sites and follow-up for its repair or replacement.
  • Represent APL and carry out acceptance testi0ng and network integration of new network elements.
  • Make a drive test after commissioning and on air the new sites /swap sites for check cross sector
  • Preparing Site Health Report (SHR).

Confidential

Technical Support Enginee r

Responsibilities:

  • Led the transition process and executed fault-free software up gradation from B8 to B9in the Confidential BSS Network
  • Created a step by step method to identify, report, maintain and replace defective hardware in the BSCs
  • Level two support supervision and support to the onsite engineers Confidential remote locations
  • Liaison with the OMCR and acts as the technical point of contact by generating daily reports to CTO - Confidential UAE

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