SUMMARY

• Seeking a challenging position as a Data scientist. Passionate about data science and big data.
• Energetic, results - oriented individual committed to building customer success and team success.
• Work well in both team environments and individual assignments.
• Proficient in R, Pig, Hive, Big SQL, SQL, Scala, Python, C++, C, Java, Perl, shell scripts, HTML, CSS, XML, Assembly, Verilog, SystemVerilog.
• Experienced in Advanced Data Analysis, Supervised/Un-Supervised Machine Learning, statistical programming, Data Mining, Natural Language Processing(NLP), Text Mining, Statistical Modeling, Predictive Modeling, Object-Oriented Programming, Embedded system programming.
• Familiar with Naive Bayes, Decision Trees, Support Vector Machines, AdaBoost, Gradient Boosted Machines, Random Forest, K Nearest Neighbors, Linear Regression, K-means Clustering, n-grams, etc.
• Experienced and deep noledge in getting and cleaning data, exploratory data analysis, predictive model building, Feature Selection, Model Selection, Cross Validation, Dimensionality Reduction, Regularization, PCA, hypothesis testing, etc.
• Data Visualization and Presentation: RStudio Presenter, Knitr, Rmarkdown, Shiny, rCharts, Google Vis, Slidify, ggplot2.
• Big Data - Spark Fundamentals (Spark, SparkR, Spark Streaming, SparkSQL, GraphX, MLlib, RDD, Zeppelin notebooks).
• Big Data Storage and Retrieval (Big Data, Big SQL, HBase, Hadoop, Hive, NoSQL, SQL, Sqoop, Flume).
• Big Data Programming (MapReduce and Pig programming).
• Big Data Hadoop (Apache Hadoop and HDFS).
• MS SQL Server, Oracle, Confidential Big Insights, RStudio, Eclipse, Visual Studio, Git, GitHub.
• MS Excel, MS Word, PowerPoint.
• Operating Systems: Linux, Unix, Solaris, AIX, MS Windows.

PROFESSIONAL EXPERIENCE

CONSULTING DATA SCIENTIST/ENGINEER

Confidential, Austin, Texas

Responsibilities:

• Used advanced data analysis to identify and manage the variables causing the quality problem.
• Collected data for data analysis using SQL, Pig, Hive, and R.
• Cleaned and transformed data to prepare data for further analysis.
• Performed feature selection using correlation analysis, PCA, and Expert Knowledge base to remove the least influential parameters.
• Built predictive models using Machine Learning algorithms such as RandomForest, AdaBoost, SVM, Neutral Network, etc. for fault detection.
• Moved data in and out Hadoop using Sqoop.
• Worked in a pilot project which utilizes Spark tool.
• Worked collaboratively with different teams to support yield and quality improvement and cost reduction via advanced data analytics.

DATA SCIENTIST/ENGINEER

Confidential - Austin, Texas

Responsibilities:

• Applied data mining techniques to identify problems for trouble shooting and defect diagnosis to enhance the wafer yield rate of the front end processes.
• Extracted, transformed, analyzed, and visualized data using SQL, Pig, Hive, and R.
• Cleaned noisy, missing, and inconsistent data to improve the quality of the data and facilitate efficient data mining tasks.
• Applied K-means clustering algorithm in CP yield data to identify the bad lots in a short time.
• Used statistical hypothesis tests (ANOVA test, K-W test) to screen out non-significant process stages to improve the analysis efficiency.
• Built predictive models using decision tree algorithms (CHAID, CART, C4.5) to identify the possible root causes such as machines or time periods in the semiconductor manufacturing processes.
• Discussed the results with domain engineers for trouble shooting and defect diagnosis.
• Imported and exported data in and out Hadoop using Sqoop.
• Worked with other teams using advanced data analysis to solve critical problems.

SOFTWARE ENGINEER

Confidential - Austin, Texas

Responsibilities:

• Developed functional tests and test benches using several programming languages (Verilog, System Verilog, C, C++, assembly, etc.) to verify the design and test the microcontrollers used in Telecommunication network and Automobile applications, at both system and module levels.
• Verified and tested SERDES protocols such as XAUI, SGMII, SATA, PCIe, AURORA, SRIO; several slow bus blocks such as I2C, DUART, DMA, IFC, USB, DSPI, SDHC, Ethernet MAC, GPIO; Ethernet protocols such as RGMII and MII; and other modules such as ADC, SPI, CAN, ROM, FLASH, RAM, TIMER, JTAG, PLL, ROM, RAM.
• Created test plans to verify all functionality at module level, all connectivity and interaction between modules in different modes at system level.
• Developed/reused/converted test benches and test cases using several programming languages (Verilog, SystemVerilog, C, C++, Assembly, etc.).
• Ran simulation and debugged simulation failures. Managed 1,000+ functional test suite and executed functional regression.
• Wrote Perl and shell scripts to automate the simulation process.
• Worked with product engineers in LabVIEW development of a fully automated test system used to validate PowerPC microcontrollers for Automotive Engine Control applications. Utilized logic analyzers, signal generators, and oscilloscopes.
• Supported external and internal customers in resolving any problems or issues.

SOFTWARE ENGINEER

Confidential - Raleigh, NC

Responsibilities:

• Developed test cases in C to test several clusters of servers (up to 128 nodes) built around Ethernet switches in different hardware and software configurations, and different temperatures.
• Delivered the whole network clusters to customers. Performed system hook-up and bring-up, installed software, trained and supported customers at their sites.
• Wrote shell scripts to automate the testing process.

CO-OP ENGINEER

Confidential - Austin, Texas

Responsibilities:

• Completed three co-op tours (three semesters) with Confidential .
• Developed functional tests in C to improve functional coverage for a high-end graphic adapter. Ran test regression and debugged simulation failures.
• Performed functional and thermal testing for the RS6000 client systems.