2166 Senior Systems Engineer jobs in Reston,VA

Bachelor's degree in engineering or related field with 2+ years of prior relevant experience or a master's degree with at least a year experience in one of these areas: systems engineering, software engineering, test engineering or related field.
Must be a US Citizen.
Must have an active Secret clearance with the ability to obtain TS.
Experience working in a SIL environment.
Experience with SysML, preferably using Cameo/MagicDraw.
Strong desire to grow and learn new technologies.
Ability to communicate effectively in writing and verbally from informal one-on-one discussions or in a small group environment.
Ability to work within a dynamic work environment, ability to handle multiple tasks at once (multi-task).
Please Note: Candidates must be able to work on-site in Arlington, VA.

Data Center Technical Operations Engineer

Kforce Inc.

Sterling, VA 20164

M9 Solutions

Herndon, VA 20171

MasTec Industrial

Rockville, MD 20849

Vantor

Mc Lean, VA 22101

To be eligible for this position, you mustbe a U.S. Person, defined as a U.S. citizen, permanent resident, Asylee, or Refugee.
_Export Control/ITAR:_ Certain roles may be subject to U.S. export control laws, requiring U.S. person status as defined by 8 U.S.C. 1324b(a)(3).
This position requires an active U.S. Government Security Clearance at the TS/SCI level with required polygraph.
Bachelor's degree in computer science or related area of study.
Senior Labor Category: Minimum 8 years of experience with a Bachelor's degree; or 7 years of experience with a Master's degree; or 6 years of experience with a Doctorate.
Active/current TS/SCI with required polygraph.
US citizenship required.
Proficiency in Python and common data/AI libraries.
Experience developing AI/ML applications, including LLM-integrated applications, RAG workflows, or similar retrieval-based capabilities.
Experience with agent-based programming concepts, AI frameworks, and tool-based LLM application development.
Strong understanding of AI/ML foundational concepts, including transformers, algorithms, LLM behavior, data processing, and model integration patterns.
Experience designing, developing, or integrating REST APIs to retrieve, process, or exchange data across systems.
Familiarity with production-ready application development practices, including reliability, maintainability, testing, and deployment considerations.