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i3 is searching for an Associate Cybersecurity Engineer who designs, implements, and maintains secure cyber systems to protect an organization’s information and assets from cyber threats. Conducts scans and remediations to meet governmental compliance regulations. This position is located at Redstone Arsenal in Huntsville, AL.
The Test Analyst/Engineer will focus on end-to-end testing of new and emerging technologies for the U.S. Army Portfolio Acquisition Executive – Fires, Integrated Fires Directorate (IFD/USG). This is an onsite position in Huntsville, AL on Redstone Arsenal.
NASA Armstrong Flight Research Center (AFRC) Aircrew member performs duties in support of the operations of all aircraft assigned to applicable base location. Pilots will fly sorties for NASA and NASA customers to ensure that quality products and safe operations are provided as tasked. Aircraft are operated to meet Agency platform, research, and support aircraft requirements. AFRC aircraft are located at the main campus at Edwards Air Force Base, California. Deployed operations, both CONUS and OCONUS, are routine for these aircrew positions.
i3 is seeking a Principal AI Engineer to lead the design, development, and deployment of AI-driven security and data solutions for defense and intelligence community customers. This role combines hands-on technical expertise with strategic leadership to advance i3's AI capabilities across cybersecurity threat detection, supply chain risk management, and mission-critical analytics platforms. This is a full-time position based in Huntsville, AL (with potential for hybrid flexibility).
i3 is seeking a Software Reverse Engineer (Electronic Warfare / Embedded & Binary Analysis) to support the Naval Research Laboratory’s Tactical Electronic Warfare Division. You will reverse engineer and analyze software used in electronic warfare (EW) and build purpose-driven tools that help teams test, characterize, and understand real-world systems. This role is ideal for someone who enjoys deep technical problem solving—from disassembly and debugging to building automation and instrumentation that turns analysis into action.
Pay Range $129,000 - 210,000
The pay range for this position...
i3 is seeking a VMware Systems Administrator. The selected candidate will provide technical expertise supporting information system components, infrastructure integration and maintenance to satisfy architectural and business requirements. The VMware Systems Administrator must have a customer centric approach and provide all levels of support for the user base community.
i3 is seeking a motivated and detail-oriented Data Management Intern to support critical initiatives in defense data handling and analysis. This role offers hands-on experience in managing Department of Defense (DoD) test data, facilitating the ingestion of mission-critical information for weapon system analysts, digitizing a national archive of historical defense records, and contributing to the sustainment of the United States’ most elite missile defense systems.
As an intern, you will:
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i3 has an internship opportunity supporting the Agency Information Management and Software Services (AIMSS) effort, available for a student seeking a degree in Cybersecurity, Information Security, or a related field. The best candidates for this position possess a strong interest in cybersecurity principles, a proactive approach to problem-solving, and a desire to learn about security technologies. The Cybersecurity Intern will receive mentorship from experienced cybersecurity professionals while assisting with real-world security challenges.
This position is expected to last the duration of Summer 2026....
i3 is searching for an Azure Cloud Engineer to support the Missile Defense Agency Information Management and Software Services (AIMSS) effort. The mission is to design and implement a Missile Defense System with multiple layers of protection. The Azure Cloud Engineer performs administration of cloud and on-site technologies and provides end-to-end solutions for IT Systems, creates and configures virtual and physical machines in a multi-platform environment, monitors system performance and addresses any issues through an effective support process. This position is located at Redstone Arsenal in Huntsville, AL.
i3 is seeking an Avionics Systems Engineer to support a rapidly evolving, low-cost, novel system. You will be responsible for designing, developing, testing and integrating advanced avionics solutions for sUAS platforms. The position involves collaborating with a small, diverse team of engineering professionals to ensure project goals and timelines are achieved. This position is in Huntsville, Alabama, and the candidate can expect up to 10% travel.
This position is contingent upon contract award, with an estimated timeframe of December 2025.
i3 is seeking an engineer with programming experience to support computer modeling and simulation support activities for guided and unguided rockets.
This is an on-site position and is located in Huntsville, AL.
i3 is seeking a Virtualization Systems Administrator to join a team to support an Army contract. Provide technical expertise supporting information system components, infrastructure integration and maintenance to satisfy architectural and business requirements. The Virtualization Systems Administrator must have a customer centric approach and provide all levels of support for the user base community.
i3 is seeking a driven DevSecOps Engineer to help spearhead adoption of modern DevSecOps principles & practices for a large government enterprise environment. Efforts will be focused on providing diverse infrastructure solutions utilizing a variety of Information Technology.
i3 is seeking a Mid Level Network Engineer to build and maintain DoD computer systems and networks with cyber concepts in mind to verify the DoD customers operating securely and that data is protected from both internal and external threats. Candidate will be responsible for working closely with end users to properly build and maintain the network for very specific software functionality needed (i.e., multicast, broadcast, etc.) Common tools such as Cisco Catalyst Center, Cisco ISE, Cisco ACI, and DISA Assured Compliance Assessment Solution (ACAS) will be used. This position is located on Redstone Arsenal, AL and is 100% onsite.
i3 is excited to offer a part-time Systems Engineering Internship within our Science, Engineering, and Technology (SET) business unit. This is a unique opportunity to gain hands-on experience in developing cutting-edge autonomy and command and control (C2) software for uncrewed air, ground, and waterborne systems. Join our dynamic team where innovation meets real-world applications.
This internship will be for the Summer 2026 period and will be onsite in Huntsville, AL.
At i3, our...
i3 has a Summer 2026 internship opportunity for a Program Finance Intern to be located at our Corporate Office in Huntsville, AL.
i3 is offering a part-time Summer 2026 internship position within our Accounting Department for Huntsville, AL. This candidate will be exposed to the Accounting environment by learning the basics of Accounts Payable, Accounts Receivable, Time and Expense, etc.
The intern program allows students with the opportunity to experience hands on work experience in support of on-going projects. We offer flexibility within the program based upon the student’s schedule.
i3 is seeking a EO/IR Systems Engineer to join our team. This is a hands-on, end-to-end role that applies first-principles thinking to design optical sensors, model sensor performance, and support the integration of those designs into real-world hardware. The candidate will define test strategies, assist in building test infrastructure, and validate systems under realistic conditions. The candidate will advise on the technical direction and then develop it for a rapidly evolving, low-cost, novel system.
This position is contingent upon...
i3 has an exciting opportunity for an Electrical Engineer to support the Naval Research Laboratory, Tactical Electronic Warfare Division. The TEWD's mission is to protect the warfighter from emerging threats by advancing electronic warfare (EW) through RDT&E of current and future technologies.
Pay Range $65,000 - 148,000
The pay range for this position is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of job,...
i3 is offering a part-time Summer 2026 internship position within our Army Training Solutions business unit. This candidate will be exposed to the development of Interactive Multimedia Instruction (IMI) within an Agile software development environment. This candidate will interact with Instructional Systems Designers (ISD), 3D Artists, Software Developers, Designers, and Program Managers in support of DoW training development.
