Sr. Data/ML Engineer

Halvik; McLean (VA); On-site; USD 140,000 - 200,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

401(k) with company matching

Flexible Spending Accounts

Tuition Assistance

Holidays and PTO

Job summary

Halvik Corp is seeking a Senior Data/ML Engineer to strengthen Army Vantage with high-performance Python data processing and predictive ML capabilities. You will work across Python, Polars, NumPy, and ML frameworks to build, train, and refine models, ensure data quality, and deliver production-ready analytics within a government environment.

The role emphasizes integrating predictive models into end-to-end mission solutions while collaborating with cross-functional teams and ensuring robust data

Qualifications

• BS degree or equivalent experience in CS/IT/Engineering/Data Analytics or similar field.
• Active Secret security clearance.
• 10+ years in data engineering with dimensional modeling for analytics/Reporting.
• Senior-level data engineering experience with Python.
• Hands-on experience with Polars and NumPy.
• Demonstrated predictive ML experience with Scikit-Learn, LightGBM, or XGBoost.

Responsibilities

• Develop high-performance data-processing and analytical workflows in Python.
• Prepare, transform, analyse, and validate data using Polars and NumPy.
• Develop, train, evaluate, and refine predictive ML models.
• Integrate ML capabilities into Army Vantage environment and end-to-end solutions.
• Collaborate with Foundry Workshop Developers to implement analytics in mission systems.
• Document methodologies, data-processing logic, and model details.

Skills

Python

Data engineering

Feature engineering

Model evaluation

Model deployment

Education

BS degree in Computer Science or related field

Tools

Polars

NumPy

Scikit-Learn

LightGBM

XGBoost

Job description

Halvik Corp delivers a wide range of services to 13 executive agencies and 15 independent agencies. Halvik is a highly successful WOB business with more than 50 prime contracts and 500+ professionals delivering Digital Services, Advanced Analytics, Artificial Intelligence/Machine Learning, Cyber Security and Cutting-Edge Technology across the US Government. Be a part of something special!

Position Overview

The Senior Data/ML Engineer supports advanced data engineering and predictive machine learning within the Army Vantage environment. The position focuses on high-performance Python-based data processing and the development and implementation of predictive machine learning capabilities.

The position requires familiarity and technical understanding across one or more areas including in Python, Polars, NumPy, and predictive machine learning using Scikit-Learn, LightGBM, XGBoost, and related techniques supported by demonstrated experience completing projects involving 2 or more of these technologies. The emphasis is on understanding how the technologies interact and having sufficient practical experience to successfully implement their integration.

Key Responsibilities

• Develop high-performance data-processing and analytical workflows using Python.
• Prepare, transform, analyze, and validate data using Polars, NumPy, and related Python technologies.
• Perform feature engineering in support of predictive machine learning.
• Develop, train, evaluate, and refine predictive machine learning models.
• Develop predictive ML capabilities using Scikit-Learn, LightGBM, XGBoost, and related technologies.
• Evaluate model performance and support model optimization and calibration.
• Support monitoring of predictive models and identification of model or data drift.
• Develop production-ready analytical capabilities for use within Army Vantage.
• Integrate data products and predictive models into the Army Vantage environment.
• Collaborate with the Full-Stack/Integration Lead and Foundry Workshop Developers to incorporate analytical capabilities into end-to-end mission solutions.
• Troubleshoot data-processing, analytical, and predictive-model issues.
• Document analytical approaches, data-processing logic, model methodology, and technical implementation.

Required Qualifications

• Education: BS degree in Computer Science, Information Technology, Engineering, Data Analytics, or another related scientific or technical discipline (or equivalent experience)
• Must possess an active Secret security clearance.
• Years of Experience: 10+ years of experience in data engineering including working with and designing dimensional models for analytical and reporting environments.
• Technical Competencies & Tools:
• Demonstrated senior-level Data engineering experience.
• Strong proficiency in Python.
• Hands-on experience with Polars.
• Hands-on experience with NumPy.
• Demonstrated predictive machine learning experience.
• Experience developing predictive ML solutions using Scikit-Learn.
• Experience with LightGBM.
• Experience with XGBoost.

Preferred Expertise

• Experience developing data or analytical capabilities within Palantir Foundry/Army Vantage.
• Experience operationalizing predictive models within enterprise environments.
• Experience supporting large or complex government data environments.
• Previous Army, DoD, or federal mission-system experience.

Halvik Offers a Competitive Full Benefits Package Including

• Company-supported medical, dental, vision, life, STD, and LTD insurance
• Benefits include 11 federal holidays and PTO
• Eligible employees may receive performance-based incentives in recognition of individual and/or team achievements.
• 401(k) with company matching
• Flexible Spending Accounts for commuter, medical, and dependent care expenses
• Tuition Assistance
• Charitable Contribution matching

Halvik Corp is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status.

Halvik's pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.