Pay
$166K–$240K is typical
The middle half of what similar US postings state. This one doesn’t list pay.
From 1,279 postings in the last year. Stated ranges, not salaries paid.
Machine Learning Engineer- Senior
Chantilly, VA, United States
Open 5 months, first seen by us 179 days ago- Pay
- Pay not listedSimilar roles state $166K–$240K
- Work setting
On-site — work setting source
Work setup in the employer’s posting: On-site
From the employer’s posting- Employment
Full-time — employment source
Employment type in the employer’s posting: Full-time
From the employer’s posting
Before you apply
- Work authorization
- US citizens only
This security clearance requires US citizenship
What you’ll work on
Full postingApply data science and machine learning to answer mission challenges
Develop and iterate rapid prototype solutions using open-source models
Work on object detection, image/video analysis, facial recognition and similar topics
Explain technical results to non-technical leadership and stakeholders
From the employer’s posting
Leverage data science and machine learning processes to answer mission challenges.
Develop and iterate rapid prototype solutions, leveraging open-source models and technologies where possible
Flexibility to support topics such as object detection, data triage, search/optimization, image/video analysis, facial recognition, behavior detection, and automated discovery.
Effectively communicate technical concepts and deliver results to non-technical leadership and stakeholders, facilitating informed decision-making.
What you’ll bring
All qualificationsCore experience
- Existing TS/SCI clearance with poly; U.S. citizenship required
- 5+ years in a data science or engineering role
- Experience with agentic AI frameworks such as Autogen
- Asynchronous Python development with Ray and FastAPI
- Deploying models into multi-node Ray clusters using GPU resources
Preferred experience
- Bachelor's degree in Data Science, Statistics, Computer Science, or a related field; OR equivalent experience.
- Experience in the US Intelligence Community.
Qualification wording
Existing TS/SCI (with poly).
Minimum 5 years of experience in a data science/engineer role.
Experience developing and using agentic AI frameworks including Autogen.
Experience with asynchronous Python development using frameworks like Ray and FastAPI.
Deploying models into multi-node Ray clusters utilizing various GPU resources.
Bachelor's degree in Data Science, Statistics, Computer Science, or a related field; OR equivalent experience.
Experience in the US Intelligence Community.
Education & alternatives
Preferred Qualifications - Bachelor's degree in Data Science, Statistics, Computer Science, or a related field; OR equivalent experience. - Experience in the US Intelligence Community.
Posting record
Report an errorOpen 5 monthsWe first saw this posting 179 days ago and it is still up. Roles open this long are often slow to fill or kept open to collect applications.
- Status in our records
- Live
- First seen by us
- May 9, 2026179 days ago
- Recorded sightings
- 403
- Last seen by us
- Nov 4, 2026
- Employer says posted
- Nov 21, 2025
These dates show when we found the posting. Check the employer’s website to confirm it is still accepting applications.
How this job compares
Time since we first saw it
Day 179
Up longer than most. Similar jobs usually come down between day 6 and day 68.
From 4,292 similar postings that came down. Coming down is not always a hire.
SOSi is hiring
30 open jobs
Open jobs by the week we first saw them, last 12 weeks.
- Hiring at a steady pace
- Takes jobs down at a usual pace
- 13% of open jobs were reposted
See how this role fits your experience
Add your resume and we’ll mark which of these tools you already use, and point out anything in the posting that could rule you out.
- Python
- FastAPI
Where the posting names them
- Experience with prompt engineering beyond traditional code writing and debugging. Understanding of how to craft prompts for discrete tasks such as data labeling and processing. - Experience with asynchronous Python development using frameworks like Ray and FastAPI. - Experience developing and deploying AI/ML models as part of production systems, implementing software development best practices for scalability and reliability.
Your next step
Complete your application on jobs.smartrecruiters.com. The employer’s form will show what is required.
Applying through SmartRecruiters
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Already applied? Track this application
Job description
Job Description
Overview
SOSi is seeking a skilled Machine Learning Engineer to support a US government customer in Chantilly, VA. In this job you will work with other talented data scientists, software developers, and SMEs to apply the best practices and state of the art data science and machine learning processes. This role requires the ability to solve complex problems independently and collaboratively in a dynamic work environment. Strong communication skills are essential for translating technical concepts to non-technical stakeholders and delivering actionable insights.
Essential Job Duties
- Leverage data science and machine learning processes to answer mission challenges.
- Develop and iterate rapid prototype solutions, leveraging open-source models and technologies where possible
- Flexibility to support topics such as object detection, data triage, search/optimization, image/video analysis, facial recognition, behavior detection, and automated discovery.
- Apply excellent problem-solving skills to address technical challenges, both independently and as part of a team in a fast-paced environment.
- Comprehend project requirements and execute tasks accordingly, ensuring alignment with project goals and timelines.
- Effectively communicate technical concepts and deliver results to non-technical leadership and stakeholders, facilitating informed decision-making.
Qualifications
Minimum Requirements
- Existing TS/SCI (with poly). This security clearance requires U.S. citizenship. Candidates will not be nominated for new clearances.
- Minimum 5 years of experience in a data science/engineer role.
- Experience developing and using agentic AI frameworks including Autogen.
- Experience with prompt engineering beyond traditional code writing and debugging. Understanding of how to craft prompts for discrete tasks such as data labeling and processing.
- Experience with asynchronous Python development using frameworks like Ray and FastAPI.
- Experience developing and deploying AI/ML models as part of production systems, implementing software development best practices for scalability and reliability.
- Experience developing and applying advanced machine learning methods including clustering, regression, optimization, recommender engines, and artificial neural networks.
- Deploying models into multi-node Ray clusters utilizing various GPU resources.
- Experience with developing and deploying resources to cloud environments.
- Experience working in Linux and Windows environments and managing resources for efficiency.
- Demonstrated ETL expertise.
Preferred Qualifications
- Bachelor's degree in Data Science, Statistics, Computer Science, or a related field; OR equivalent experience.
- Experience in the US Intelligence Community.
Additional Information
Work Environment
- Office setting with a combination of desk work and meetings.
Working at SOSi
All interested individuals will receive consideration and will not be discriminated against for any reason.
Company Description
Founded in 1989, SOSi is among the largest private, founder-owned technology and services integrators in the defense and government services industry. We deliver tailored solutions, tested leadership, and trusted results to enable national security missions worldwide.
Source details
Source notes
Source excerptsSelected passages from the saved posting. Check the full description for conditions and exceptions.
- Pay
No pay amount identified in the saved description.
- Location & working pattern
Chantilly, VA, United States
Working pattern and location restrictions need checking in the full posting.
- Work authorization
Minimum Requirements - Existing TS/SCI (with poly). This security clearance requires U.S. citizenship. Candidates will not be nominated for new clearances. - Minimum 5 years of experience in a data science/engineer role.