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Senior - Expert Level Data Scientist TS/SCI with Poly REQUIRED

CGI

Company : CGI

Location : Arlington, VA, 22201

Posted Date : 9 October 2025

Job Type : Full Time

Category : Mathematics

Occupation : Data Scientist

Job Details

Senior - Expert Level Data Scientist TS/SCI with Poly REQUIRED
Category: Business Consulting, Strategy and Digital Transformation
Main location: United States, Virginia, Arlington
Position ID:J
Employment Type: Full Time
Position Description:
TS/SCI with CI Poly clearance required
This position is located in our Arlington office; however, a hybrid working model is acceptable.
CGI Federal is looking for a Data Scientist for an exciting opportunity leading state-of-the-art solutions for an intelligence community mission system. We are searching for a creative, visionary problem solver who has a passion for delivering state-of-the-art solutions. In this role, you will deliver quality production solutions that embody solid MLOps practices to significantly expand customer capabilities.
Your future duties and responsibilities:
• Support development of Artificial Intelligence (AI)/ML based pipelines for data inference.
• Apply supervised, unsupervised, and NLP Machine Learning (ML) algorithms for clustering, classification dimensionality reduction, and metadata extraction & content analysis.
• Work in cross-functional engineering and product development teams with data at all stages of the analysis lifecycle to derive actionable insight.
• Analyze complex datasets, detect trends and patterns, develop conclusions, and provide recommendations to improve data ingestion, increase data scaling, and enhance data exploitation to ensure more interoperable and secure data.
• Verify data quality and/or ensure it via data cleaning for accuracy and completeness.
• Perform statistical analysis and utilize results to improve the model and data pipeline.
• Design, develop, and maintain ETLs to extract, transform the data into existing data warehouses.
• Collaborate with analytics teams and SMEs to improve data models that feed business intelligence tools, increasing data accessibility and encouraging data-driven decision making across the organization.
• Automate data analysis to improve and enhance data.
• Adept at picking up new tools and technologies.
• Manage large complex projects involving diverse datasets.
• Excellent technology communication and thought leadership skill.
Required qualifications to be successful in this role:
• BS or MS degree in Computer Science, Engineering, Information Technology Management or related technical field.
• 7- 15+ year's experience obtaining data from multiple, disparate data sources including structured, semi-structured and unstructured data.
• Demonstrable expertise in an area of data science or analytics (e.g. machine learning, deep learning, NLP, computer vision, predictive modeling and forecasting, statistics).
• Proficiency in tools and languages such as Graph DBs, PostgreSQL/SQL, Python, or Java.
• Experience using ML algorithms packages contained in AWS SageMaker or open-source libraries (Python, C++, etc.)
• Experience developing, verifying, and monitoring AI/ML Models
• Familiarity with DevOps processes and code versioning tools such as git
• TS/SCI with CI Poly clearance
Desired qualifications/non-essential skills required:
Desired:
• Master's degree in Computer Science, Engineering, Information Technology Management or related technical field.
• Demonstrated experience with enhancing, managing, optimizing performance, and processing large volumes of data
• Familiarity with industry best practices for software/hardware development when processing large data sets
• Experience in the following required task areas: machine learning, statistical modeling, time-series forecasting, and/or geospatial analytics
• Experience with Hadoop, Spark, or other parallel computing processes
• Experience with using the Joint Enterprise Modeling and Analytics (JEMA) framework or Apache NiFi to develop data processing workflows
• Experience in AWS services including but not limited to Sagemaker, S3, EMR, and IAM.
CGI is required by law in some jurisdictions to include a reasonable estimate of the compensation range for this role. The determination of this range includes various factors not limited to skill set, level, experience, relevant training, and licensure and certifications. To support the ability to reward for merit-based performance, CGI typically does not hire individuals at or near the top of the range for their role. Compensation decisions are dependent on the facts and circumstances of each case. A reasonable estimate of the current range for this role in the U.S. is $111,600.00 - $271,800.00.
CGI Federal's benefits are offered to eligible professionals on their first day of employment to include:
• Competitive compensation
• Comprehensive insurance options
• Matching contributions through the 401(k) plan and the share purchase plan
• Paid time off for vacation, holidays, and sick time
• Paid parental leave
• Learning opportunities and tuition assistance
• Wellness and Well-being programs
#CGIFederalJob
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#CGIintelligencecareers
Skills:
  • AWS Machine Learning
  • DevOps
What you can expect from us:
Together, as owners, let's turn meaningful insights into action.
Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you'll reach your full potential because...
You are invited to be an owner from day 1 as we work together to bring our Dream to life. That's why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company's strategy and direction.
Your work creates value. You'll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise.
You'll shape your career by joining a company built to grow and last. You'll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.
Come join our team-one of the largest IT and business consulting services firms in the world.
Qualified applicants will receive consideration for employment without regard to their race, ethnicity, ancestry, color, sex, religion, creed, age, national origin, citizenship status, disability, pregnancy, medical condition, military and veteran status, marital status, sexual orientation or perceived sexual orientation, gender, gender identity, and gender expression, familial status or responsibilities, reproductive health decisions, political affiliation, genetic information, height, weight, or any other legally protected status or characteristics to the extent required by applicable federal, state, and/or local laws where we do business.
CGI provides reasonable accommodations to qualified individuals with disabilities. If you need an accommodation to apply for a job in the U.S., please email the CGI U.S. Employment Compliance mailbox at You will need to reference the Position ID of the position in which you are interested. Your message will be routed to the appropriate recruiter who will assist you. Please note, this email address is only to be used for those individuals who need an accommodation to apply for a job. Emails for any other reason or those that do not include a Position ID will not be returned.
We make it easy to translate military experience and skills! Click here to be directed to our site that is dedicated to veterans and transitioning service members.
All CGI offers of employment in the U.S. are contingent upon the ability to successfully complete a background investigation. Background investigation components can vary dependent upon specific assignment and/or level of US government security clearance held. Dependent upon role and/or federal government security clearance requirements, and in accordance with applicable laws, some background investigations may include a credit check. CGI will consider for employment qualified applicants with arrests and conviction records in accordance with all local regulations and ordinances.
CGI will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with CGI's legal duty to furnish information.

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