The end client is unable to sponsor or transfer visas for this position; all parties authorized to work in the US without sponsorship are encouraged to apply.Seeking a Sr. Data Scientist (Clearance, TS/SCI/FS Poly) in McLean, VA. Role DescriptionData Scientist/Engineer, working with a team of developers, technology professionals, tradecraft experts, and tactical developers to solve difficult problems and create solutions needed to meet mission needs. Working with this team will require unique expertise and the ability to articulate problems, requirements, and proposed solutions, while working with both technical and non-technical resources to achieve goals in support of various mission sets.* Design, develop, code, test, and debug complex new software products, or make significant enhancements to existing software* Participate in building scalable platforms that incorporate business intelligence, analytics, data science, and data management* Use firsthand technical expertise in a variety of large data technologies, social media applications, and mobile technology in order to fashion capabilities to monitor, collect, and analyze data that may be generated from these types of technologies* Understand data flow, and determine how to develop test and automation suites to ensure data collection* Provide ongoing maintenance, support and enhancements in existing systems and platforms* Collaborate cross-functionally with data scientists, analysts, project managers, and other engineers* Utilize data science disciplines and techniques needed to deliver, create, and maintain collection and other types of platforms.* Troubleshoot complex problems and provides customer support for software systems and application issues* Deliver on multiple competing priorities once initial input has been received* Maintain and enhance operations security and be sensitive to mission needs regarding discoverability and attributionSkills & Requirements* 8-10 years of experience, or BS in Computer Science plus 6-8 years of experience, or MS plus 5-6 years of experience* Experience with various cloud providers (Amazon, Azure, etc.) and components of those providers such as Amazon's Lambda, EC2, Glacier, or EBS functionality* Expertise with a variety of database technologies and capabilities such as NoSQL, SQL, Hadoop, Hive, Pig, Oracle, Ganglia,* Expertise with programming languages and frameworks such as .NET, Java, Python, and Bash scripting* Familiarity with tools like Jenkins, Team City, Selenium, Chef, Puppet, Ansible, and NagiosWhy Hays?You will be working with a professional recruiter who has intimate knowledge of the Information Technology industry and market trends . Your Hays recruiter will lead you through a thorough screening process in order to understand your skills, experience, needs, and drivers. You will also get support on resume writing, interview tips, and career planning, so when there's a position you really want, you're fully prepared to get it. Nervous about an upcoming interview? Unsure how to write a new resume?Visit the Hays Career Advice section to learn top tips to help you stand out from the crowd when job hunting. Hays is an Equal Opportunity Employer.Drug testing may be required; please contact a recruiter for more information. #1113830