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i3 has an exciting opportunity for a RF 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. The RF Engineer will design RF subsystems for threat simulators, as well as serve as a subject matter expert (SME) during the analysis of seekers.   Pay Range $130,000 - 225,000 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...

i3 has an exciting opportunity for a RF Hardware 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. RF Hardware Engineers design and analyze RF components and circuit assemblies for radar systems.   Pay Range $85,000 - 151,000 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, education, experience, knowledge,...

At i3, our Security team is integral to our success. Do you have a passion for all things security? Are you committed to bringing a unique and innovative approach to constantly evolving security requirements? We are seeking a motivated Facility Security Officer (FSO) at our Orlando, Florida office who strives to excel at every opportunity. The FSO will be responsible for obtaining and maintaining the Facility Clearance and overseeing the construction of a new Open Storage Area.  If you are interested in helping us solve our nation’s toughest problems, apply below!

Supports the organization in a technical area related to the student’s current area of graduate or undergraduate study. Learns skills related to their degree while also supporting departments across the organization with technical tasks. Work is performed under immediate supervision and provides a real-world application of classroom knowledge.   Intern must be in a technical related degree with a concentration or interest in pursuing Linux administration.

i3 has an internship opportunity available for a student seeking a degree in the Information Technology (IT) field. The best candidates for this position have a professional and courteous demeanor as well as an eagerness to learn IT technologies used in corporate enterprises. The IT Intern will receive mentorship from experts in the IT field while working i3 corporate enterprise problems.   This position is expected to last the duration of Summer 2026. Flexibility is available to accommodate the student's class schedule. This position is located at the i3 Corporate Office in Huntsville, AL.

i3 is excited to offer a part-time Software 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.  

i3 is seeking an experienced Radar Systems Engineer to design, develop, and optimize advanced radar systems for defense applications. The successful candidate will work on cutting-edge radar technologies, from initial concept through deployment, ensuring systems meet stringent performance, reliability, and performance requirements.   Pay Range $166,000 - 300,000 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...

i3 has an exciting opportunity for a Software Reverse 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 $129,000 - 210,000 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, education, experience, knowledge,...

i3 has an exciting opportunity for a Digital Hardware 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 analysis and RDT&E of current and future technologies.   Pay Range $115,000 - 189,000 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...

The Model-Based Systems Engineer (MBSE) provides technical leadership and expertise in the application of Model-Based Systems Engineering methods to design, analyze, and optimize Department of Defense systems. This position leverages advanced MBSE tools, techniques, and frameworks to create digital representations of complex systems, enabling data-driven decision-making and enhancing system lifecycle management. As a subject matter expert, the MBSE Engineer collaborates with multidisciplinary teams to ensure system designs meet mission-critical requirements, integrate seamlessly with existing platforms, and comply with DoD standards and security protocols.   This role requires an active Top Secret security...

i3 has a Summer 2026 internship opportunity available for a student currently pursuing Data Analytics in school.   The best candidates for this position enjoy working with people and understand that data plays a pivotal role in enhancing business intelligence as it helps drive informed decision-making. In addition, they are not afraid to ask questions. The proper candidate will partner with key members of the i3 IT Team to uncover business requirements, build relationships of trust, and deliver exceptional value.

i3 is searching for a Palantir Software Developer to support the Missile Defense Agency Information Management and Software Services (AIMSS) effort. The Palantir Software Developer works with teams and customers to build and modify software by writing code, debugging and fixing errors and improving performance. Maintains technical documentation and creates release notes for new features. Provides recommendations for applications and enhancements. This position is located at Redstone Arsenal in Huntsville, AL.

i3 is seeking a Mid-Level Linux Systems Administrator to support an Army Contract. The Mid-Level Linux Systems Administrator will provide technical expertise supporting information system components, infrastructure integration and maintenance.   Candidates for this position must possess, at a minimum, the ability to obtain and maintain a United States SECRET level security clearance.

i3 is proud to help our nation’s military personnel make the transition to civilian careers through the Department of Defense (DoD) SkillBridge program. These opportunities are specifically for transitioning service members to gain valuable civilian work experience through an individual internship during their last 6 months of service, for up to 180 days. Participants are not eligible for compensation as they continue to receive military compensation and benefits as active-duty service members. i3 will consider any active-duty member that is eligible for the DoD SkillBridge program; however, for immediate consideration, we are looking for Military members to fill the following...

 The Data Manager supports the Missile Defense Agency’s Information Management and Software Services (AIMSS) program by executing and overseeing the full lifecycle of test and mission data across MDA systems. This role focuses on data flow coordination with test data producers, adherence to mission-specific standards, and the operational management of data ingestion, parsing, cataloging, distribution, and archival. The Data Manager ensures data products are delivered accurately, securely, and on time to support analysis and decision-making, serving as a bridge between test event operations and data consumers.

i3 is seeking a motivated Agile Systems Engineer to support the development and fielding of advanced Launched Effects (LE) platforms. In this role, you will be an integral part of a dynamic team of engineers, working collaboratively to integrate essential technologies and ensure these systems meet the rigorous demands of the modern battlefield. This position will employ Agile methodologies to accelerate and promote rapid procurement, iteration, improvement and fielding of Launched Effects platforms.

i3 is seeking a Program Finance Analyst to join our growing team! We offer competitive salary & benefits, team-environment, and great company culture.

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 searching for a Program Integrator who will support multiple Army acquisition programs within the Counter-Rocket, Artillery, Mortar (C-RAM) and Integrated Air and Missile Defense (IAMD) Project Offices, gathering and integrating data from the programmatic, engineering, test and evaluation, configuration management, and logistics functions in order to develop, update, and maintain program documentation, formulate recommendations for decision makers, and ensure compliance and cohesiveness with all required Army, Program Executive Office Missiles and Space (PEO MS), and other relevant guidance, directives, and policies. 

i3 has an exciting opportunity for an Electrical Engineer to support the Naval Research Laboratory, Tactical Electronic Warfare Division. 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 $104,000-182,000 The pay range for this position is a general guideline only and not a guarantee of compensation or...