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 an experienced Senior Software Engineer to support a mission-critical federal payroll and financial management program. This role will support software development, application sustainment, and production operations within a complex enterprise environment.
Job Description
The Senior Software Engineer will support the full software development lifecycle, including software design, development, testing, implementation, maintenance, and production support. The successful candidate will possess strong legacy application experience supporting enterprise business systems.
Responsibilities
- Design, develop, test, and maintain enterprise software applications.
- Develop and maintain COBOL applications within an IBM z/OS environment.
- Analyze and resolve production issues, including batch processing failures.
- Support software releases, production deployments, and configuration management.
- Participate in requirements analysis, code reviews, testing, and documentation.
- Collaborate with systems engineers, database administrators, testers, and customer stakeholders.
- Bachelor's degree in Computer Science, Engineering, Information Systems, or related field. Equivalent experience may be substituted.
- 10+ years of software engineering experience.
- Experience supporting mission-critical production environments.
- Experience supporting enterprise business applications.
- COBOL, IBM z/OS, JCL, SDLC, Production Support, Software Testing, Configuration Management
- Ability to obtain Public Trust Clearance.
Preferred:
- Oracle
- Cognos
- Endevor
- Payroll, financial management, or ERP systems
Additional Information
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 Computer Science, Engineering, Information Systems, or related field (or equivalent experience)
- 10+ years of software engineering experience
- Experience supporting mission-critical production environments
- Experience supporting enterprise business applications
- COBOL
- IBM z/OS
- JCL
- SDLC
- Production Support
- Software Testing
- Configuration Management
- Ability to obtain Public Trust Clearance
- Oracle
- Cognos
- Endevor
- Experience with payroll, financial management, or ERP systems
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.
