Sr. Software Engineer

  • Full-time
  • Job Family Group: Technology and Operations

Company Description

Visa operates the world's largest retail electronic payments network and is one of the most recognized global financial services brands. Visa facilitates global commerce through the transfer of value and information among financial institutions, merchants, consumers, businesses and government entities.

We offer a range of branded payment product platforms, which our financial institution clients use to develop and offer credit, charge, deferred debit, prepaid and cash access programs to cardholders. Visa's card platforms provide consumers, businesses, merchants and government entities with a secure, convenient and reliable way to pay and be paid in 170 countries and territories.

Corporate Information Technology (CIT) encompasses enterprise technology that empowers Visa Inc. staff to perform core business functions needed to support ongoing management of Visa Inc. operations. Corporate Business Systems (CBS) is a group in Corporate IT that provides application design and development service to support corporate systems within the Finance, Global Risk and Compliance, Sourcing, Legal, and Corporate Services portfolios. This position is for Finance team, so an experience in Finance is necessary. This includes managing system requirements, design, development, integration, quality assurance, implementation and maintenance of corporate applications. There will be interaction with customers and key stakeholders in Financial Systems Strategy (FSS), Project Management Office (PMO) & Global Operations.

Job Description

KeyResponsibilities:

Visa is currently seeking for a Senior Hadoop with Tableaudeveloper experience in Finance area to deliver Corporate Analytics new strategicframework initiative. This BI platform provides analytical/operationalcapability to various business domains that are to be used by Corporate FinanceSystems. This Developer role will be primarily responsible for designing,developing and implementing Hadoop framework ETL using relational databases anduse Tableau reporting on it. The new Hadoop framework to be used to build fromthe scratch Oracle Financial analytics/P2P/Spend/Fixed asset solution intoHadoop framework from OBIA. The individual should have a finance business backgroundwith extensive experience in OBIA Fixed Assets, P2P, Financial analytics, SpendAnalytics, and Projects. Expert in Hadoop framework components like Sqoop,Hive, Impala, Oozie, Spark, HBase, HDFS..

 

·       Architect, Design and implement column familyschemas of Hive and HBase within HDFS. Assign schemas and create Hive tables.Managing and deploying HDFS HBase clusters.

·       Develop efficient pig and hive scripts withjoins on datasets using various techniques. Assess the quality of datasets fora hadoop data lake. Apply different HDFS formats and structure like Parquet,Avro, etc. to speed up analytics

·       Fine tune hadoop applications for highperformance and throughput. Troubleshoot and debug any hadoop ecosystem runtime issues

·       Hands on experience in configuring, and usingHadoop ecosystem components like Hadoop MapReduce, HDFS, HBase, Hive, Sqoop, Spark,Impala, Pig, Oozie, Zookeeper and Flume.

·       Desired candidate should have strong programmingskills on Scala or Python to work on Spark

·       Experience in converting core ETL logics usingPySpark SQL or Scala language

·       Good experience on Apache Hadoop Map Reduceprogramming, PIG Scripting and Distribute Application and HDFS.

·       In-depth understanding of Data Structure andAlgorithms.

·       Experience in managing and reviewing Hadoop logfiles.

·       Implemented in setting up standards andprocesses for Hadoop based application design and implementation.

·       Experience in importing and exporting data usingSqoop from HDFS to Relational Database Systems and vice-versa.

·       Experience in Object Oriented Analysis, Design(OOAD) and development of software using UML Methodology, good knowledge ofJ2EE design patterns and Core Java design patterns.

·       Experience in managing Hadoop clusters usingCloudera Manager tool.

·       Very good experience in complete project lifecycle (design, development, testing and implementation) of Client Server andWeb applications

·       Experience in connecting Hadoop framework componentsto Tableau reporting

·       Expert in Tableau data blending and data modeling.

·       Create Functional and Technical designdocumentation

·       Perform Unit and QA testing data loads and developmentof scripts for data validation

·       Support QA, UAT, SIT and performance testingphases of development cycle

·       Understand and incorporate required securityframework, including data level security

·       Understanding of data and business processes.

·       Experience in Finance OBIA modules and rebuildthem from scratch in Hadoop framework

·       Support, design and configuration of Tableausites, projects and corresponding security, ETL processes, dashboards andreports.

·       Liaise with internal business and IT groups(such as database administration, infrastructure support, development) inperforming support activities, system configuration and standard functionalityanalysis for enhancement requests.

·       Adhere to defined support policies, procedures,and service levels with an understanding of SOX related IT controls.

·       Provide support to strategic initiatives asassigned including, but not limited to system configuration, testing ofapplications and process enhancements, upgrades and new solutions, ensuringsound knowledge transfer to assume post-implementation support role.

·       Expected to critically evaluate customer servicerequests and incidents to prioritize own workload, determine potential globaland/or cross-modular impacts, determine temporary procedural work-around wherefeasible, and communicate to the broader group of impacted parties.

·       Conduct one-on-one user training or formalized,pre-developed larger group training sessions as assigned.

·       Proactively identify, evaluate, and communicateideas for process improvements and training needs both for applications usageby customers as well as for internal processes and skills enhancement.

·       Work with L3 teams (SME) on the criticalrequests and resolve it to closure.

·       Responsible for global Customer Service,including end-user support and education and issue troubleshooting andresolution for all users of the Corporate Finance Analytics Production systems.

·       Mentoring the junior team members. 

Qualifications

Must have experiences:

· BS or equivalent in MIS, CS, or related field

· Minimum 5-7 years’ experience with Hadoop framework components (HDFS, HBase, Sqoop, Hive, Impala, Spark, Scala, Python, Oozie)

· Experience in Tableau reporting tool with Hadoop

· Experience in ETL tools like Informatica or likewise

· Finance OBIA modules experience is highly recommended: Fixed assets, PSP, Spend analytics, Financial analytics

· Strong knowledge of database concepts, systems architecture, and data structures is a must

· Extensive experience with Oracle databases and SQL development

· Extensive hands-on experience with Linux and Windows

· Process oriented with strong analytical and problem solving skills

· Work independently and mentor other sin the team and with minimal supervision

· Experience with building analytical reports using Tableau required

· Solid understanding of ITIL methodology.

· Java scripting experience is nice to have

Additional Information

Common Purpose, Uncommon Opportunity. Everyone at Visa works with one goal in mind –
making sure that Visa is the best way to pay and be paid, for everyone
everywhere. This is our global vision and the common purpose that unites the
entire Visa team. As a global payments technology company, tech is at the heart
of what we do. CyberSource, a Visa company, has been and continues to be a
pioneer within the e-Commerce Payment Management world. Our VisaNet network is
capable of handling over 65,000 transaction messages per second for people and
businesses around the world, enabling them to use digital currency instead of
cash and checks. 



We are also global advocates for financial inclusion, working with partners
around the world to help those who lack access to financial services join the global
economy. Visa’s sponsorships, including the Olympics and FIFA™ World Cup,
celebrate teamwork, diversity, and excellence throughout the world. If you have
a passion to make a difference in the lives of people around the world, Visa
offers an uncommon opportunity to build a strong, thriving career. Visa is
fueled by our team of talented employees who continuously raise the bar on
delivering the convenience and security of digital currency to people all over
the world. Join our team and find out how Visa is everywhere you want to be. 



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in a manner consistent with the requirements of Article 49 of the San Francisco
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