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Sr. Software Engineer

SOSi • English • IT Infrastructure & Networking Services • Military Logistics • Bachelor's Degree • Public Trust • COBOL • Cognos • 3 months ago

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Salary

$103k – $214k per year

Location

Hybrid (Indianapolis, United States)

Seniority

Senior · 10+ years exp

Employment

Full-Time

Confirmed on the employer's own hiring board on Oct 17, 2026. First seen by Alion on Jul 30, 2026. SOSi scores C on the Alion truth index.

Overview

Company

Impact

Profile match

SOSi

SOS International, known as SOSi, is a privately held American government services company founded in 1989 that began by supplying linguists and interpreters to the United States military. It has since broadened into intelligence analysis, logistics and base operations support, information technology and network engineering, and cybersecurity, working for defence, intelligence and federal civilian customers both in the United States and in deployed locations. Headquartered in Reston, Virginia and still family owned, it employs several thousand people, a large share of them holding security clearances.

sosi.com • HQ: Reston, United States • IT Infrastructure & Networking Services • Military Logistics • Translation Services • Intelligence • 1001-5000 employees • Est. 1989

Tech stack of SOSi

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.

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.

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

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.

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