Founded in 1989 and headquartered in Reston, Virginia, SOSi is a private defense and government solutions business specializing in advanced technology systems and mission support. Its capabilities include data science, software development, network engineering, intelligence, surveillance, and reconnaissance (ISR), and logistics.
Job DescriptionSOSi is seeking a Senior Systems Engineer to support operations and sustainment of a mission-critical enterprise application supporting federal business operations.
Job Description
The Senior Systems Engineer will provide technical leadership supporting production operations, infrastructure integration, database technologies, release management, and enterprise system performance within a large IBM mainframe environment.
Responsibilities
- Support IBM z/OS production environments.
- Maintain and support IDMS database environments.
- Support production deployments and release activities.
- Troubleshoot system performance issues and production incidents.
- Support configuration management and technical documentation.
- Coordinate system changes across technical teams.
- Bachelor's degree in Engineering, Computer Science, Information Systems, or related field. Equivalent experience may be substituted.
- 10+ years supporting enterprise systems.
- Experience supporting mission-critical production operations.
- Strong IBM mainframe experience.
- IBM z/OS, IDMS, Oracle, Cognos, Broadcom Endevor, Production Operations, System Integration.
- Ability to obtain Public Trust clearance.
Preferred:
- Large-scale financial or ERP systems.
- Federal enterprise environments.
Work Environment
- Normal office conditions with potential to perform duties in deployed locations
- Remote or Hybrid work model
- Core hours of operation are Monday through Friday, 0600 – 1700.
- May be requested to work evenings and weekends to meet program and contract needs
Working at SOSi
All interested individuals will receive consideration and will not be discriminated against for any reason.
Skills Required
- Bachelor's degree in Engineering, Computer Science, Information Systems, or related field (or equivalent experience)
- 10+ years supporting enterprise systems
- Experience supporting mission-critical production operations
- Strong IBM mainframe experience
- Experience with IBM z/OS
- Experience with IDMS databases
- Experience with Oracle
- Experience with Cognos
- Experience with Broadcom Endevor
- Production operations and system integration experience
- Ability to obtain Public Trust clearance
- Large-scale financial or ERP systems experience
- Experience in federal enterprise environments
SOSi Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about SOSi and has not been reviewed or approved by SOSi.
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Healthcare Strength — Health coverage is considered a relative strength, with international plan options and substantial employer contribution that support OCONUS and travel-heavy work. Company materials also highlight a comprehensive medical offering alongside wellness support.
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Retirement Support — A 401(k) program is available, with indications of employer matching though specifics are not publicly detailed. This suggests foundational retirement support for eligible employees.
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Career-Linked Recognition & Rewards — Compensation is often characterized as competitive for cleared, hard‑to‑hire, and certain overseas or mission‑critical roles. Pay levels appear closely tied to contract demands, clearance, and location.
SOSi Insights
What We Do
SOSi is a technology and services integrator focused on the aerospace, defense, and government services industry, described as one of the largest private, founder-owned companies in its sector.
