Data Scientist

Data Scientist

Application Deadline: 25 June 2026

Department: Data Analysis and Technology Services

Employment Type: Full Time

Location: McLean, VA

Description

REQUIRED : Active TS/SCI with Full Scope Polygraph
LOCATION: Full-time onsite in McLean, VA


We're looking for a Data Scientist who can build and operate productiongrade data pipelines, deliver scalable ETL/ELT workflows, and solve complex analytical challenges in cloud environments. In this role, you'll work with PySpark and distributed processing, design optimized SQL solutions, and develop secure, wellengineered data applications using Python and modern orchestration tools.


Who We Are: We offer advanced services in data science, data engineering, software engineering, AI solutions, cybersecurity, staff augmentation, and IT program management.

Passionate Integrity, Driven by Excellence
Ardent Principles offers a competitive salary range and a comprehensive, industryleading benefits package designed to support longterm stability and employee wellbeing. We provide more than a position-we offer a workplace committed to excellence, integrity, and missionfocused impact. Our mission is to act as a bridge between satisfied clients and fulfilled employees, ensuring that your job and well-being are our top priorities because your satisfaction leads to the success of our clients.

Join us as we continue building the future of secure, highimpact solutions.

Key Responsibilities

In this challenging yet rewarding role, you are an integral part of what brings our Company's mission to life. You must have the following required skills, certifications and demonstrated experience in and/or with:

• Building production data pipelines and ETL/ELT workflows at scale.
• Using Apache Spark and PySpark for distributed data processing.
• Advanced Python programming skills including data manipulation libraries (Pandas, NumPy) and data engineering best practices.
• Understanding data security, privacy, governance, and compliance principles.
• Workflow orchestration tools such as Step Functions and Airflow.
• Containerization such as Docker or Podman, and deploying data applications in cloud environments.
• AWS services (in particular S3, Lambda, and Step Functions).
• PostgreSQL and MySQL in production environments, including performance tuning and schema design.
• SQL and query optimization for complex analytical workloads.
• Version control (Git) and CI/CD practices for data pipelines.
• Working with stakeholders to understand data requirements, assess feasibility, and design appropriate solutions with minimal oversight.
• Strong problem-solving and debugging skills for data quality issues, pipeline failures, and performance bottlenecks.

Highly Desired Qualifications

Other skills and demonstrated experiences that are highly desired but not mandatory to perform the work, include:

• Data lakehouse architectures using Apache Iceberg.
• Configuring, deploying, and integrating data platform components: Apache Ranger (access control and data governance), Trino (distributed SQL query engine), Data catalogs (Unity Catalog OSS, Apache Polaris, etc.), and Apache Superset (data visualization and dashboarding).
• Bash scripting for automation and data processing tasks.
• Infrastructure as Code (Terraform or CloudFormation) for data infrastructure.
• Tracking data lineage and associated tooling such as OpenLineage.
• Using Java.
• Data quality frameworks, testing methodologies, and validation strategies.
• Background with large-scale data migrations or platform modernization efforts.
• Integrating AI/ML services and models (translation, OCR, speech-to-text, NLP, language detection, topic modeling), LLMs, and RAG (retrieval-augmented generation) pipelines.
• Geospatial data processing (H3, PostGIS, or similar).
• Contributing to data engineering documentation, best practices, or design patterns.
• NoSQL databases (DynamoDB, etc.).
• Excellent written and verbal communication skills with both technical and non-technical audiences.
• Linux Operating Systems
• Agile/Scrum development methodologies in a fast-paced, collaborative team environment.
• Working effectively in high-performing, cross-functional teams with multiple concurrent projects.
• Working directly with stakeholders to gather requirements, understand needs, and translate them into technical solutions with minimal oversight.
• Self-directed work with a strong ownership mentality and commitment to code quality, testing, and documentation.
• Context-switching between projects and systems as priorities demand.

What We Offer You

• Highly Competitive Salary : Recognizing and rewarding your expertise and contributions.
• Generous Paid Time Off : Providing ample time for rest, relaxation, and personal pursuits.
• Dedicated Training Budget : Supporting continuous learning and professional development.
• 100% Employer-Covered Family Vision, Dental, and Health Insurance : Ensuring comprehensive health coverage for you and your family.
• 100% Employer-Covered Life and Disability Insurance : Offering financial security and peace of mind.
• 401(k) Plan with a 6% Employer Match : Helping you plan and save for a secure retirement, with 100% vesting from day one.
• 11 Paid Government Holidays : Observing national holidays to ensure time off with family and friends.
• Spot Bonuses for Exceptional Performance : Rewarding outstanding contributions and achievements.

SCHEDULE:

This is a full-time position with consultants expected to be available and working onsite in McLean, VA during core hours.

Ready to take the next step in your career? Join us and be part of a team dedicated to driving positive change through technology. Apply now with our easy 3-minute, mobile-friendly initial application process. Your future starts here!