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Hadoop JAVA/HIVE/Impala developer
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Senior Hadoop Developer Department: EIM Big Data Continental Europe
Reports to: Head of EIM Big Data Continental Europe
Location: Based in the EU with flexible/travel across Europe
The Context

Join a rapidly growing consulting and IT services Fortune 500 company with close to 190,000 employees worldwide, a very flexible international business, customers that are leaders in their respective sectors, and a high level of commitment. Born global, Cognizant offers a unique learning and work environment.
The EIM (Enterprise Information Management) Practice provides solutions and services to clients, that cover the whole lifecycle of information utilization from ideation to implementation to value creation. With Big Data complementing and extending the traditional information supply chain by adding business critical capabilities, the Big Data Service Line is steadily gaining significance within the practice.
To address the development of its Big Data business in Europe, to support projects creating exacting solutions for our clients, and to bolster thought leadership, Cognizant is recruiting a Senior Hadoop Developer
The Role

We are looking for a client facing Hadoop Developer to join our growing Big Data group within the Continental European region. You will be joining an experienced team and will in charge of providing Hadoopdevelopment expertise within the team. With a solid understanding and extensive hands-on experience designing, creating, and testing big data solutions based on the Hadoop eco-system for large scale deployments, you will be working on various projects,building great Big Data solutions for clients, stable, scalable, enterprise-ready, and focused on creating business value.
You will be responsible, in close collaboration with our Big Data Center of Excellence team based in India and USA, for guiding the team and the client on Big Data development throughout the full lifecycle of the solution and the execution of projects.
We are looking for candidates,who have a self-starter mentality, a desire to learn, and the ability to grow and build relationships, both internally with colleagues and externally with clients, across different geographic regions.
Primary Responsibilities

  • Advise clients on the best solution design and technologies to meet their needs
  • Drive solution development projects to successful completion
  • Contribute hands-on through all phases of the system design lifecycle with minimal supervision
    • Analyse functional and non-functional requirements and their impact on the solution design
    • Design and develop high performance, robust, and secure solutions based on Hadoop ecosystem
    • Participate in the validation of the solutions on test and integrationenvironments
    • Take responsibility of design documentation and participate in design and code reviews
    • Support the operational team during production deployments
  • Support during pre-sales activities
  • Evaluate new technologies, execute proof-of-concepts, and develop specialized algorithms
  • Lead smaller development teams, guide on particular technical topics, formulate best practices, and coach others
  • Learn and adopt additional technologies as needed, such as using NoSQL databases as part of solutions, different integration and analysis concepts
  • Innovate constantly, maintain the technical edge and thus contribute to thought leadership

Must Have Skills

  • Strong and comprehensive experience in software design and development of enterprise scale, robust, highly scalable, and secure solutions over the full lifecycle
  • Strong and comprehensive experience in JAVA development including usage of modern frameworks
  • Strong object-oriented design and programming experience
  • Strong experience developing of Hadoop APIs and MapReduce jobs for large scale data processing
  • Solid understanding of Big Data platform technologies in particular the Hadoop eco-system with HDFS, MapReduce, HBase, Hive, PIG, Storm and other components
  • Working knowledge of at least one additional programming or script language such as Python, Scala, Perl, PHP
  • Experience with test-driven development and software test automation
  • Experience working with waterfall as well as agile methodologies
  • Experience of similar lead roles
  • Strong sense of ownership and the ability to work with a limited set of requirements
  • Ability to support business development activities shaping and communicating technical aspects and proposed solutions in a clear and unambiguous manner
  • Experience working as a member of a distributed, often global, team of technical and domain experts using waterfall and agile development methods
  • Fluent in English and German

Highly Desirable Skills

  • Hands-on experience with
    • DWH platforms like IBM DB2, Oracle, Teradata, AWS RedShift
    • NoSQL platforms like Cassandra, MongoDB, CouchDB, Neo4j
    • Complex event processing
    • Processing web logs, social media data, machine-to-machine data
    • ETL tools such as Informatica, IBM, Pentaho, Talend, Syncsort in connection with Hadoop
    • Analytical and statistical libraries and languages such as R, Mahout


  • Graduate incomputer science or equivalent
  • 7-12 years of professional experience
About Cognizant
Cognizant (NASDAQ: CTSH) is a leading provider of information technology, consulting, and business process outsourcing services, dedicated to helping the world's leading companies build stronger businesses. Headquartered in Teaneck, New Jersey (U.S.), Cognizant combines a passion for client satisfaction, technology innovation, deep industry and business process expertise, and a global, collaborative workforce that embodies the future of work. With over 75 development and delivery centers worldwide and approximately 217,700 employees as of March 31, 2015, Cognizant is a member of the NASDAQ-100, the S&P 500, the Forbes Global 2000, and the Fortune 500 and is ranked among the top performing and fastest growing companies in the world. Visit us online at or follow us on Twitter: Cognizant .

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