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Senior-Data Analysis

El Segundo, California

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Analyze data sets of millions of customers - and uncover groundbreaking solutions that have a global impact.

"You get to work on multi-million dollar projects from day one using the latest technology, and there are many training opportunities if you want to learn something new."

Sang Han — Senior Data Scientist

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Job Overview

Work directly with the client user community and business analysts to define and document data requirements for data integration and business intelligence applications. Determine and document data mapping rules for movement of medium to high complexity data between applications. Adhere to and promote the use of data administration standards. Support data selection, extraction, and cleansing for corporate applications, including data warehouse and data marts. Create and sustain processes, tools, and on-going support structures and processes. Extract and analyze data from specific applications, systems and/or databases to create reports and provide recommendations based on the analysis of the data. Investigate and resolve data issues across platforms and applications, including discrepancies of definition, format and function. Create and populate meta-data into repositories. Create data models, including robust data definitions, which may be entity- relationship-attribute models, star, or dimensional models. Maintain quality control and auditing of databases, resolving data problems, and analyzing system changes for quality assurance. Utilize prior experience in designing and developing Hadoop Jobs for analyzing data using MapReduce, Spark, Hive and Pig.  Apply prior experience in massively parallel processing databases such as Teradata and Vertica. Maintain encrypted data elements in compliance with company standards. Utilize past experience to build Linux shell scripts to handle diverse variety of requests. Implement advanced procedures like text analytics and processing using the in-memory computing capabilities, such as Apache Spark. Understand Big data, Hadoop architecture and various components such as HDFS, YARN, Resource manager (Job tracker), Node manager (Task Tracker), Name Node, Data Node and MapReduce programming paradigm. Install, configure, and use Hadoop ecosystem components such as Hadoop MapReduce, HDFS, Oozie, Hive, Sqoop, Pig, Spark Zookeeper, Flume. Import and export data using Sqoop from HDFS to Relational Database Systems and vice-versa. Tune and optimize Hadoop, Hive, Spark Jobs and SQL queries for the effective utilization of the cluster resources, reduce operational cost and improve system performance. Extract, cleanse, Transform, and load the data from Heterogeneous sources like Online transactional and analytical data, Flat files, Amazon S3 buckets, server logs from different servers, vendor-specific API's and custom scripts to Hadoop distributed file systems/Data lake. Support Batch and Real-time processing. Convert business process into RDD transformations using Apache Spark. Write Producers/Consumers and create messaging centric applications using Apache Kafka. Work with variety of Database like Teradata, Vertica, Oracle and MySQL Develop web applications using Java. Communicate the data gaps and issues with the upstream source systems, down streams, reporting and business units. Develop technical documents and conduct user training on procedures and technologies. Learn and adapt quickly and to correctly apply new tools and technology. Encompass strong communication and analytical skills with relevant past experience in programming and problem solving. Collaborate with designing schedule jobs using IBM workflow scheduler and Autosys schedular tools. Design and develop Hadoop Jobs for analyzing data using MapReduce, Spark, Hive and Pig Participate in all testing phases: testing, QA, System Integration Testing (SIT) and User acceptance.

Requires a Master’s degree, or foreign equivalent degree in Computer Science, Information Technology, or Software Engineering  and three (3) Years of experience in the job offered or three (3) Years of experience working directly with the client user community and business analysts to define and document data requirements for data integration and business intelligence applications; determining and documenting data mapping rules for movement of medium to high complexity data between applications; maintaining quality control and auditing of databases, resolving data problems, and analyzing system changes for quality assurance; designing and developing Hadoop Jobs for analyzing data using MapReduce, Spark, Hive and Pig; and participating in all testing phases: testing, QA, System Integration Testing (SIT) and User acceptance.
AT&T is an Affirmative Action/Equal Opportunity Employer, and we are committed to hiring a diverse and talented workforce.  EOE/AA/M/F/D/V *np*



Job ID 2236986 Date posted 09/22/2022
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Benefits

Invested in your satisfaction and continued success.

We take care of our own here (hint: that could be you). Our benefits and rewards mean we cover some of your biggest needs with some of the coolest offerings. We already think we’re a pretty great place to work. We’re just trying to rack up some bonus points.

Let’s start with the big one: Your work gets rewarded with competitive compensation and benefits. It really does pay to be on our team.

Compensation

When it comes to priorities, we know family tops the list. For the moments that matter the most, you'll be there for them, and we'll be here for you.

Family Leave

Paid Time Off

Our people have class. Literally. We can help you out on approved education costs with our tuition assistance plan.

Tuition
Assistance

Here’s another reason to breathe easy: You and your family get access to excellent medical, dental and vision insurance options.

Insurance Options

Wanna make your friends really jealous? You’ll get discounted access to the latest and greatest AT&T products and services — plus other awesome items, like tickets to live events.

Discounts

You strike us as an over-achiever (don’t worry, it’s a compliment). Our training and development programs are your ticket to expert status in your job.

Training & Development

When the day comes that you get some much needed R&R (not that you’d ever want to leave #LifeAtATT) you’ll know your future is set with the AT&T Retirement Savings Plan (ARSP).

Savings

Give back to your community and connect with colleagues through social and team-building events, and annual paid time off for volunteer efforts of your choice.

Community & Team Events

The Hiring Process

Step 1

Complete a quick application online and check your status often.

Step 2

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Step 3

Conditional
Job Offer

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Welcome! Onboarding
and Training Begins

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