Data Scientist

• Type: Contract
• Job #3681

Title: Data Scientist
Location: Falls Church, VA
Clearance: TS/SCI w/ CI poly

Duties & Responsibilities:
MLOps, Model Engineering, Training on time series data.
After few weeks training on Customer's AI platform, develop AI-based applications using Customer's platform for operational cloud-deployed and secure lab deployed AI-based applications.
Develop candidate models that are promoted to active models when their performance meets threshold.
Train, validate and deploy machine learning pipelines
Test, troubleshoot, and enhance customer AI-based applications based on feedback.
Manage individual project deliverables
Identify application performance bottlenecks and implement optimizations
Write application specifications and documentation
Articulate methodologies, experiments, and findings clearly in actionable way.
Work in a fast-paced environment.
This is NOT a data analytics role using Tableau or PowerBI.
This is NOT an ETL & SQL role.
This is NOT a R&D role prototyping at low TRL.

Required Skills:
Bachelor's degree in a Science, Technology, Engineering or Mathematics (STEM), or comparable area of study. No experience in lieu of.
5+ years of Data Science development experience using Python
Proficiency in data science, machine learning, and analytics, including statistical data analysis, model and feature evaluations.
Strong proficiency in NumPy & PANDAS.
Demonstrated skills with Jupyter Notebook or comparable environments
Practical experience in solving complex problems in an applied environment, and proficiency in critical thinking.
Candidates require a TS to start. TS/SCI with Polygraph preferred

Preferred Skills:
Degree in Data Science, Machine Learning, Computer Science, Engineering, Statistics, or equivalent fields
Strong mathematical background (linear algebra, calculus, probability & statistics)
Experience with machine learning model training and analysis through open-source frameworks (Pytorch, Tensorflow, Sklearn)
Experience crafting, conducting, analyzing, and interpreting experiments and investigations.
Experience with modern software development tools and practices (Git, pull requests)
Experience analyzing model performance with relevant metrics and optimizing.
Familiarity with AI agent frameworks
Ability to drive a project and work both independently and in a team
Smart, motivated, can do attitude, and seeks to make a difference
Excellent English communication and collaboration skills, particularly in multidisciplinary teams with data scientists, software engineers, product owners, & solution architects.

Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission. Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation's toughest and most secure problems. If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don't look any further than Cornerstone Defense.

Benefits Overview :
Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans * Generous PTO Policy * 401(k) * HSA and FSA options * Life and Disability Insurance * Tuition Reimbursement and Training * Perks at Work Discount Program * Referral Program * Leads Generation Program * CollegeAmerica 529 * Fitness Reimbursement Program * Travel Assistance * Norton Lifelock Benefit Solutions * Life Planning Financial & Legal Services *