SUMMARY:

• Specialized in Design and Development ofBigDataAnalytics Platform for Telecom Services in highly scalable end - to-end Hadoop Infrastructure with hands-on evaluation of user centric Quality of Experience.
• A versatile technocrat with 8+ years of experience in: Telecom Networks Hadoop Development Apache Spark Team ManagementProgrammingClient Relationship Management Software Development/ImplementationChange ManagementContinuous Improvements
• Expertise in Architecture, Design and Development of Big Data analytics platform for Telecom Services.
• Performed big data analysis using Spark, Hadoop, Map Reduce and Hive big data technologies.
• Hands on experience in writing Map-reduce programs in java and skilled in identifying the system bottlenecks and optimizing Map-reduce tasks.
• 6 months of working experience on Apache Spark Core, Streaming, SQL and DataFrames using Python scripting.
• Experience on Apache Kafka and Flume with Apache Spark Streaming.
• Experience in extending HIVE core functionality by writing custom UDF’s for data analysis and data transformations.
• Expertise in creating HIVE internal, external tables/views and writing scripts in HIVEQL.
• Expertise in writing Oozie workflows / Co-ordination workflows to schedule Hadoop Jobs.
• Conversant with Hadoop Performance Tuning parameters like split size, compression, iterative map-reduce and other best practices for enhancing performance.
• Work experience in Design & Development of Automation Frameworks using Python and Perl.
• Extensive work experience in: LTE, CDMA 1X, EVDO Rev 0/A Advanced Standards.
• Through understanding & practical work experience on LTE, CDMA/EVDO Air Interface Standards and Call Processing.
• Work experience in RF Optimization including KPI stats monitoring, analysis and recommendations for fine tuning of performance parameters to achieve required KPI.
• Experience in Backend programming using Oracle, MSSQL and MySQL.
• Experience in Junit testing, and defect tracking and management using Bugzilla and JIRA.
• Involved in migrating the data from different data warehouses like Teradata.
• Experience in writing build scripts using ANT and MAVEN.
• Experience with Agile Methodologies including Scrum and Test-Driven Development.
• Strong experience in all the phases of software development life cycle including requirements gathering, analysis, design, implementation, deployment and support
• Experience in Product development life cycle, version upgrades and migration strategies.
• Excellent analytical and communication skills in order to work with mid-size teams, technical and business leadership.
• Implemented Agile Maturity metrics to identify and target ways to improve Agile practices throughout the program.
• A keen communicator with excellent team management, analytical & problem-solving skills.

TECHNICAL PURVIEW:

Development Tool/Language: Java, Unix, Python, Perl and Shell Scripting.

Big Data Eco System: Hadoop, HDFS, Map-Reduce, Hive, HBase, OOZIE, Apache Spark Core/Streaming/SQL, Kafka, Flume.

Telecom Technologies: LTE, EVDO, CDMA & IS-95.

Database & Tools: SQL Server, MySQL, MySQL Work Bench and Oracle 11i/10g.

Operating Systems: Windows, Unix, Solaris, Ubuntu

Other Dev Tools: Eclipse, Maven, Ant, Make, GIT, Log4J, Junit, Subversion SVN

PROFESSIONAL EXPERIENCE:

Confidential, Virginia

Environment: Hadoop, HDFS, HBase, HIVE, Map-Reduce, Sqoop, Oozie, Apache Spark, Jenkins & Python

Systems Engineer

Responsibilities:

• Generate Histogram for the data set to analyze the call signal conditions for Good calls vs Dropped calls
• Identify top offender sites and network elements for call drops
• Generate Call Summary Log detailed analysis and provide most occurring reason codes for all the failed calls.
• Provide User level QoE analysis capability.
• Generate summary statistics and measures fill rates and top counts
• Generate Percentile Metrics to understand the data distribution.
• Generate PDF/CDF distribution for Signal Strength (RSRP) and Signal Quality (RSRQ)
• Field level percentiles and data distribution metrics
• Generate summary statistics and top counts
• Generate Top n users affected by coverage issues
• Identify sites with increased interference levels
• Generate PDF/CDF distribution for Signal Strength (RSRP) and Signal Quality (RSRQ)
• Perform KPI monitoring and drill-down analysis
• Identifies worst performing sites for a selected KPI
• Compares performance of different network elements for multiple KPI’s:
• Work with product owners and Business Analysts to groom the backlog and plan sprints. Track, escalate and remove impediments
• Performed Importing and exporting data into HDFS, Hive and MySQL using Sqoop.
• Developed Hive Scripts for implementing Partitioning, Dynamic Partitioning and Buckets in Hive for analytical processing.
• Developed Map-reduce programs in java and identified the system bottlenecks and optimized Map-reduce tasks.
• Expertise in performance tuning on Hive Queries, joins and different configuration parameters to improve query response time.
• Building Hadoop based big data enterprise services coding Map-Reduce Hadoop with HBase and Hive in Java.
• StreamlinedHadoopjobs and workflow operations using Oozie workflow.
• Acted as a POC for pilot project implementing Spark steaming and Dataframes using Python scripting.
• Integrated it into maven build system and Git for Continuous Integration.

Confidential, Virginia

Environment: Python, Perl & Shell

Systems Engineer

Responsibilities:

• Analyze and optimize the Network Performance in order to meet Sprint’s contractual performance improvement requirements.
• Generate Histogram for the data set to analyze the call signal conditions for Good calls vs Dropped calls
• Identify top offender sites and network elements for call drops
• Generate Top n users affected by coverage issues
• Automated the data extraction and analysis process for the required metrics.
• Designed and Developed Automation Framework for data extraction and processing using Python & Perl.
• Developed modules to extract the data from raw CSV files for a larger data set.
• Implemented threads to process large data set parallel and significantly reduced the overall processing time.
• Worked extensively on Python, Perl and Shell scripting in optimizing and fine tuning the task executions.

Confidential, Virginia

Environment: Perl, Shell and Unix.

Systems Engineer

Responsibilities:

• Designed and Developed Automation Framework for automating the test execution process.
• Developed modules to interface with different Network Elements and automate the start/stop logging process.
• Developed scripts to collect the test logs, process them and generate the Report doc.

Confidential, Virginia

Environment: LTE, CDMA, EVDO & IS-95.

Systems Engineer

Responsibilities:

• Customer interfacing to accept and respond to new feature requirements
• Provide design inputs to development teams
• Debug and resolve call processing issues from field
• Work on new feature request from Sprint and provide High Level Design to Development Team.
• Troubleshot and resolved LTE engineering issues (Thruput issues) & Voice Call Failure issues of CDMA network to facilitate first Cluster Acceptance by Sprint.
• Provide system engineering support for new feature validation in Sprint network
• Represents RAN team in Project discussions internally and with external partners.

Confidential

Environment: Shell, Perl, QTP and Unix.

Research and Development Engineer

Responsibilities:

• Designed and Developed Automation Framework for ASE and RFSST.
• Developed modules to interface the framework to the tools like CAIT and TASKIT.
• Developed modules to interface with the Hardware (Spirent) devices through GPIB.
• Developed scripts to collect the test logs, process them and generate the Report doc.

Confidential

Environment: CDMA, EVDO & IS-95.

Research and Development Engineer

Responsibilities:

• Validated RF system performance of CDMA IS-95, CDMA-1x, EVDO Rev-0/A networks.
• Worked extensively on Call Processing and KPI’s of CDMA 1x & EVDO Rev 0/A.
• Worked on CDMA Layer 1-Physical layer performance (Modulation & Demodulation efficiency, Acquisition success rate)
• Worked on optimizing the system performance, troubleshooting and fixing field issues.