Experience

Alpha Data Recruitment

• United Arab Emirates
• Human Resources
• 1 - 100 Employee

• Big Data Developer

  • Nov 2021 - Present

  • Strong understanding of Spark SQL integration with other big data technologies, such as Hadoop, Hive, and Kafka, and their impact on data processing workflows and performance. • Ability to troubleshoot common issues with Spark SQL, such as data processing errors, performance bottlenecks, and scalability limitations. • Experience working with Spark SQL in production environments and implementing performance monitoring and alerting systems to detect and resolve performance issues proactively. • Proficient in processing serialized data in Spark using various formats, such as Avro, Parquet, ORC, and Protobuf, and their features and limitations. • Experienced in using Spark serialization libraries, such as Kryo and Java serialization, to optimize data serialization and deserialization performance. • Skilled in working with binary and textual data formats in Spark, such as CSV, JSON, and XML, and their serialization and deserialization using Spark DataFrames and RDDs. • Expertise in using Spark serialization and compression techniques, such as block-level compression, dictionary encoding, and off-heap storage, to reduce data storage and processing overhead. • Maintained and monitored Spark clusters on AWS EMR, ensuring high availability and fault tolerance. • Designed and developed batch processing data pipelines on Amazon EMR using Apache Spark, Python, and Scala to process terabytes of data in a cost-effective and scalable manner. • Designed and implemented data lake architectures on Amazon S3, leveraging partitioning and columnar formats such as Parquet to optimize query performance and minimize storage costs. • Optimized Spark jobs and data processing workflows for scalability, performance, and cost efficiency using techniques such as partitioning, compression, and caching • Designed and developed Spark applications to implement complex data transformations and aggregations for batch processing jobs, leveraging Spark SQL and DataFrames. Show less



Alpha Data Recruitment

• Big Data Developer



Intertec Systems

• United Arab Emirates
• IT Services and IT Consulting
• 400 - 500 Employee

• Big Data Developer

  • Jun 2019 - Nov 2021

  • Performed Import and Export of remote data to AWS s3 • Developed spark code and deployed it in EMR. • Involved in delivering the resultant data to RDS, Redshift and snowflake • Proficient in using Sqoop to import and export data in various file formats such as CSV, Avro, and Parquet. • Skilled in configuring Sqoop jobs for incremental data transfers using Sqoop's incremental import feature. • Skilled in using Sqoop to import and export data between Hadoop clusters and data lakes such as Amazon S3. • Knowledge of Hive query tuning best practices, such as minimizing data transfers, avoiding unnecessary data conversions, and using appropriate data formats and compression codecs. • Ability to troubleshoot common issues with Hive performance, such as out-of-memory errors, query hangs, and slow query execution times. • Ability to troubleshoot common issues with Hive serialized data processing, such as data format errors, serialization and deserialization failures, and performance bottlenecks. • Proficient in developing and implementing Spark RDD-based data processing workflows using Scala, Java, or Python programming languages. • Proficient in developing and implementing Spark DataFrame-based data processing workflows using Scala, Java, or Python programming languages. Show less



Gulf Testing Factory Service (GTFS)

• United Arab Emirates
• Business Consulting and Services
• 1 - 100 Employee

• Service Desk Executive

  • Jan 2019 - Apr 2019

  • Remotely connecting to customer’s computer to fix issues • Handling the tickets using ITIL process • Creating AD accounts. Resetting and unlocking Active Directory User accounts • Creating and Administration configuration in Active Directory • Troubleshooting LAN and WAN Connectivity related problems • Configuring and managing O365 Outlook and Skype • Handling Remote access issues (Global Protect) • File/ Folder restoration, Shared drive issue • Creating PO (Purchase Order) in Guided buying (SAP system), Following up with vendor • Configuring and creating Qpulse accounts • Processing Starters, Leavers and Movers Show less



Tata Consultancy Services

• India
• IT Services and IT Consulting
• 700 & Above Employee

• Service Desk Engineer RDM (Remote Desktop Management)

  • Jan 2018 - Sep 2018

  • Handling the offshore team in the transition period (Knowledge Transfer SPOC) • Handling the tickets using ITIL process • Remotely connecting to customer’s desktop to fix issues • Contacting clients over phone, email and chat (International voice process, supporting for SHELL clients) • Handling and taking ownership of escalated tickets from HMIT, L3 teams and 3rd Party teams • Resetting and unlocking Active Directory User accounts • Administration configuration in Active Directory • Troubleshooting LAN and WAN Connectivity related problems • Configuring network and home printers • Configuring and managing O365, MS Outlook and Lync 2007/ 2010, Skype • Registry fix, server end support, profile rebuild and domain join • Handling smartcard issue, RSA/ Digipass/ Vasco token issue • Handling Remote access issues (AT&T) • File/ Folder restoration, File and Folder user permission change, Shared drive issue • Installing software from SCCM and Server. Handing issues in SCCM Show less



Mphasis

• India
• IT Services and IT Consulting
• 700 & Above Employee

• Technical Support Engineer ITO (Level 2)

  • Mar 2012 - Aug 2017

  • Contacting clients over phone, email and chat (International voice process, supporting for Sprint and Bank of America clients) • Handling enterprise support calls, outages and timely reporting escalated issues to onshore team with outbound facility, Floor support, Stamping and scrubbing of open tickets, Validating Agent errors and giving the feedback • Troubleshooting LAN and WAN Connectivity related problems • Handling hardware issues and configuring external devices connected • Configuring network and home printers • Handling Remote access issues (Cisco Anyconnect) • File/ Folder restoration, File and Folder user permission change, Shared drive issue • Installing software from SCCM and Server. Handing issues in SCCM • Managing the team in absence of Team Lead and Managers • Remotely connecting to customer’s desktop to fix issues Show less