DescriptionLooking for Senior Scala Developer at McLean, VA location.Looking for proficiency in Spark , Scala, Hive, AWS S3/Redshift, Oozie (optional), ETL BackgroundPosition SummaryCreating and maintaining optimal data pipeline architecture.Assemble large, complex data sets that meet functional/non-functional business requirements.Identify , design, and implement internal process improvements:automating manual processes. Optimizing data delivery, re-designing code and infrastructure for greater scalability.Build re-usable data pipelines to ingest, standardize, shape data from various zones in Hadoop data lake.Build analytic tools that utilize datapipeline to provide actionable insights into customer acquisition, revenue management, Digital and marketing areas for operational efficiency and KPI's.Design and build BI API's on established enterprise Architecture patterns , for data sharing from various sources.Design and integrate data using big data tools - Spark, Scala , Hive etc.Helping manage the library of all deployed Application Programming Interface (API)sSupporting API documentation of classes, methods scenarios, code, design rationales, and contracts.Design/build , maintain small set of highly flexible and scalable models linked to Hilton's specific business needs.Required QualificationsMinimum Education: Associate's Degree/College Diploma/Cepegin computer science, information systems or other quantitative field.Minimum Years of Experience: 9+ years experience in data engineering /data integrationrole.Minimum Years of Experience: five (5) yearsAdvanced working SQL knowledge and experience working with relational databases, query authoring (SQL) as well as working familiarity with a variety of databases.Experience building and optimizing 'big data' data pipelines, architecture and data sets.Build programs/processes supporting data transformation, data structures, metadata, dependency and workload management.Experience in Data warehouse , Data Mart ETL implementations using big data technologies.Working knowledge of message queuing , stream processing and scalable data stores.Experience with relational SQL and NoSQL databases, Graph databases (preferred).Strong experience with object oriented programming - Java, C++ , Scala (preferred)Experience with AWS cloud services: strom, spark-streaming etc.Experience with API, web services design and developmentOur mission is to empower organizations to build next generation workforces leveraging technology and data. We believe innovation leads to generating solutions that make the day-to-day life easy for humans and organizations.Our portfolio of solutions includes staff augmentation, consulting services as well as our revolutionary HR solution, Panna- the world's first artificially intelligent, cloud based, video interview platform.