Senior Systems Engineer - On-Site, Mission-Critical

System One; Gaithersburg (MD); On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

Health and welfare benefits

401(k) plan

Job summary

System One is seeking a Sr. Systems Engineer in Gaithersburg, MD on-site. This contract-to-hire role requires active Top Secret/SCI clearance with polygraph ability. You will lead SE activities across the full lifecycle, coordinate with agile teams, and ensure compliance with IC standards.

Responsibilities include architecture development, CONOPS, system integration, performance assessments, and DevSecOps support. Strong GEOINT background and MBSE/SysML experience are highly valued.

Qualifications

• Bachelor's degree in Systems Engineering, Computer Science, Software Engineering, Electrical Engineering or related STEM with 8–12 years of experience or Master's with 6–10 years.
• 8+ years of professional systems engineering experience.
• Experience supporting customer’s mission systems or GEOINT programs.
• Knowledge of geospatial intelligence storage, discovery, dissemination, and exploitation systems/tools.
• Understanding of SE principles and SDLC.
• Experience with Agile frameworks (Scrum, SAFe, Kanban).
• Experience with Jira or Confluence.
• Knowledge of cloud environments (AWS, Azure, GovCloud).
• MBSE/SysML experience preferred; Cameo Systems Modeler preferred.
• Experience with Kubernetes, Docker, and containerized apps.
• DevSecOps, CI/CD experience; security/compliance awareness.
• Ability to work in cross-functional teams.

Responsibilities

• Lead systems engineering across full system lifecycle from requirements to sustainment.
• Collaborate with Product Owners, Scrum Masters, and Agile teams to refine features.
• Develop and maintain system architectures, CONOPS, and technical docs.
• Perform systems decomposition, functional analysis, allocation, and traceability.
• Support backlog refinement, sprint planning, and technical roadmap development.
• Lead system performance assessments and mitigate technical risks.
• Coordinate integration across multiple development teams and partners.
• Support verification and validation, ensuring requirements are tested and documented.
• Participate in design reviews, architecture reviews, and customer briefings.
• Support DevSecOps and CI/CD processes; ensure compliance with standards.

Skills

Citizenship: US

8+ years SE experience

System engineering lifecycle

GEOINT experience

SAFe/Agile

Jira/Confluence

Cloud environments (AWS/Azure GovCloud

MBSE/SysML

Kubernetes & Docker

DevSecOps/CI-CD

Security clearance Top Secret/SCI

Cameo Systems Modeler

Education

Bachelor's degree in Systems Engineering, CS, or related STEM

Master's degree (preferred)

Tools

Jira

Confluence

Cameo Systems Modeler

Kubernetes

Docker

CI/CD tools

Job description

System One is seeking a Sr. Systems Engineer in Gaithersburg, MD on-site. This contract-to-hire role requires active Top Secret/SCI clearance with polygraph ability. You will lead SE activities across the full lifecycle, coordinate with agile teams, and ensure compliance with IC standards.

Responsibilities include architecture development, CONOPS, system integration, performance assessments, and DevSecOps support. Strong GEOINT background and MBSE/SysML experience are highly valued.