About this role

Company Description

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 Description

SOSi 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.

Qualifications

  • 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.

Frequently Asked Questions

Is the salary disclosed for the Sr. Software Engineer position at SOSi1?
The salary for this Sr. Software Engineer role at SOSi1 is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Sr. Software Engineer position at SOSi1 located?
This Sr. Software Engineer role at SOSi1 is based in IN, Indianapolis, Indianapolis, IN, United States, us. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Sr. Software Engineer role at SOSi1 full-time or part-time?
This is listed as a Full time position. It is posted as a Sr. Software Engineer role at SOSi1.
How do I apply for the Sr. Software Engineer position at SOSi1?
Click the "Apply Now" button on this page. You will be redirected to SOSi1's official application portal hosted on smartrecruiters where you can submit your application directly.
When was the Sr. Software Engineer job at SOSi1 posted?
This Sr. Software Engineer position at SOSi1 was posted on Jul 30, 2026. Apply as soon as possible — early applications are often reviewed first.
Sr. Software Engineer
SOSi1
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