Software Engineer (Associate-Mid) with Security Clearance

Integration Innovation, Inc.; Huntsville (AL); On-site; USD 90,000 - 120,000; Full time

Job summary

i3 seeks Software Engineers to join the Huntsville team to design, develop, integrate, test, and sustain mission-critical C2 software for warfighters and customers worldwide. You will support Agile Software Teams, collaborating with systems and test engineers to build robust, secure, and scalable software solutions addressing complex logical and mathematical challenges in support of Global C2 missions.

This role emphasizes hands-on development in an Agile, integrated environment with a focus on

Qualifications

• Bachelor's degree in a STEM field and at least 1 year of relevant experience (Associate Software Engineer).
• Bachelor's degree in a STEM field and at least 2 years of relevant experience (Software Engineer) or a Master’s degree with 0 years of experience.
• Strong object‑oriented software development experience with Java and C++.
• Proficiency in Linux‑based development and runtime environments.
• Experience with scripting languages and tools including Bash and Python.
• Experience with modern configuration management and source control tools (Git / GitLab).
• Experience with Agile SAFe and Atlassian Agile tools including Jira and Confluence.
• Active Secret Clearance and the ability to maintain a clearance required.
• Must be a U.S. Citizen.

Responsibilities

• Design, develop, document, test, and debug applications and software systems.
• Participate in SAFe Scrum teams to develop and maintain software for the IBCS program.
• Work in a fast-paced environment with diverse assignments and collaboration.
• Perform software development and upgrades in multiple languages while preserving behavior.
• Support documentation using Markdown and collaboration tools.
• Support testing activities including unit and functional testing, code coverage, and static analysis.
• Other duties as assigned.

Skills

Java

C++

Linux

Bash

Python

Git / GitLab

SAFe

Jira/Confluence

Security Clearance

U.S. Citizen

Education

Bachelor's degree in STEM

Master's degree in STEM

Tools

Markdown

Job description

Overview i3 is seeking Software Engineers to join the tour team in Huntsville, Alabama. You will help design, develop, integrate, test, and sustain mission‑critical command and control (C2) software used by our warfighters and customers around the world. In this role, you will support Agile Software Teams, working closely with systems and test engineers to build robust, secure, and scalable software solutions that address complex logical and mathematical challenges in support of Global C2 missions. This position is ideal for engineers who enjoy hands‑on development, solving complex technical problems, and collaborating in a highly integrated, Agile environment.

Responsibilities

• Design, develop, document, test, and debug applications and software systems that implement logical and mathematical solutions that are aligned with program objectives.
• Participate in Scaled Agile Framework (SAFe) Scrum teams to develop and maintain software products across multiple software baselines for the IBCS program.
• Work in a fast‑paced environment with high expectations, diverse assignments, and collaborative team settings across all levels of the organization.
• Perform software development and upgrades in multiple programming languages/versions while minimizing changes to the operational behavior of tactical software.
• Support documentation creation and updates using Markdown and other collaboration tools.
• Support testing activities including unit and functional testing, code coverage analysis, and static code analysis; contribute to continuous improvement of test effectiveness and automation.
• Other duties as assigned.

Qualifications

• Associate Software Engineer- Bachelor's degree in a STEM field and at least 1 year of relevant experience
• Software Engineer- Bachelor's degree in a STEM field and at least 2 years of relevant experience, Master's degree in STEM field and 0 years of relevant experience
• Strong object‑oriented software development experience with Java and C++
• Proficiency in Linux‑based development and runtime environments.
• Experience with scripting languages and tools including Bash and Python.
• Experience with modern configuration management and source control tools (Git / GitLab).
• Experience with Agile SAFe and Atlassian Agile tools including Jira and Confluence.
• Active Secret Clearance and the ability to maintain a clearance required.
• Must be a U.S. Citizen.

Preferred Qualifications

• Experience with Model‑Based Systems Engineering (MBSE), including Cameo or similar tools.
• Experience with DevSecOps and CI/CD pipelines to build, integrate, test and deliver software.
• Experience supporting real‑time or distributed systems using RTI/DDS publish/subscribe middleware.
• Engagement: Experience with US Army Systems including PATRIOT, LTAMDS, SENTINEL A3/A4, IFF devices, and M_SHORAD.
• Experience with Engagement Planning and Execution, PAC2/PAC3, and AIM9x, and Indirect Fires.
• Track Management: Experience with track management including sensors, composite track, IFF devices, and Combat Identification.
• CompTIA Security+

Physical Demands

• While performing the duties of this job, the employee is regularly required to talk or hear. The employee frequently is required to stand; walk; handle or feel; and reach with hands and arms.
• The employee is occasionally required to sit; climb or balance; and stoop, kneel, crouch or crawl. The employee must be able to lift and/or move up to 10 pounds and occasionally lift and/or move up to 25 pounds.
• Specific vision abilities required by this job include close vision, distance vision, peripheral vision, depth perception and ability to adjust focus.
• The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job.

Regular i3 hours are 8:00 a.m. - 5:00 p.m. Monday-Friday, however, additional hours may be required on occasion. Regular and punctual attendance is required.

About i3 Founded in 2007, Integration Innovation, Inc. (i3) is headquartered in Huntsville, AL, with additional offices in Orlando, FL, and the National Capital Region. We are a 100% team member-owned mid-tier integrator with over 800 employee-owners, and our culture speaks for itself: we've earned ten Best Places to Work® awards, driven by strong employee engagement, transparent leadership, and a genuine commitment to communication. i3 team members operate at the leading edge of national defense across a broad range of technical disciplines, from systems and software engineering to modeling, simulation, and training solutions to cybersecurity, digital engineering, and enterprise IT. We also take products from prototype through production, bringing that same engineering rigor to manufacturing and delivering hardware at scale. For candidates, that means a rare opportunity: the innovation and mission focus of an engineering services company paired with the hands‑on impact of building and delivering real solutions that benefit the Warfighter, all inside an employee‑owned company where your contributions directly shape both the mission and your ownership stake in the business.