Navy Information Systems Technician – Submarines (ITS): Definitive Guide

A submarine depends on more than steel or power. It depends on information. At any moment, hundreds of connected computer systems process satellite data, mission intelligence, plus encrypted communications.

When a network fails, the mission can be at risk. Information Systems Technicians (Submarines) prevent that. They design, maintain, and repair key IT systems so information keeps moving when it matters most. On a submarine, delays can cost time you do not have.

If this job interests you, you can start here.

Job Description

The Information System Technician – Submarines (ITS) are Navy enlisted Sailors who perform various functions related to communications operations, message processing, network administration, and cybersecurity aboard U.S. Navy submarine vessels.

A submarine is only as strong as its data. Every mission depends on secure networks, encrypted comms, and real-time intelligence. Information Systems Technicians—Submarines (ITS) make sure that nothing fails, nothing leaks, and nothing is lost.

What They Do

ITSs secure, defend, and maintain the Navy’s most critical digital systems. From global satellite communications to classified intelligence networks, they ensure information flows without interruption.

• Radio Frequency (RF) Communications & Spectrum Management – Control all incoming and outgoing messages.
• Satellite Telecommunications – Manage secure, worldwide comms for mission success.
• Network Administration & Security – Build, operate, and defend IT systems on submarines.
• Electronic Warfare Systems – Maintain and safeguard cryptographic and communication security equipment.
• Data Recovery & Diagnostics – Troubleshoot issues before they become mission failures.
• Software & Hardware Support – Train crew members, deploy new applications, and solve IT problems on the fly.

Where They Work

• Aboard submarines – Climate-controlled, high-security electronic spaces.
• Occasional shore assignments – Supporting IT operations at Navy facilities worldwide.

The Numbers

• About 600 ITSs in the Navy.
• Work in teams, but often take on solo projects.

On a sub, there’s no IT help desk—just you. If the network goes down, you fix it. If data is compromised, you secure it. Failure is not an option.

ITS Specialties: Two Paths, One Mission

The ITS rating is split into two specialized fields, each focused on keeping submarine networks and electronic systems operational.

ITS-COMMS (Communications Specialist)

The link between the sub and the world.

• Operate & Maintain Submarine Communication Systems – Keep secure comms running 24/7.
• Manage Databases & LANs – Oversee networks critical to mission success.
• Handle Cryptographic Material – Secure and protect classified data at sea.
• Test & Repair Communication Equipment – Fix problems before they impact operations.
• Support the Communications Officer – Assist in mission-critical communications.
• Serve as Instructors & Support Staff – Train the next generation of ITS-COMMS personnel.

ITS-EW (Electronic Warfare Specialist)

Defend, disrupt, and dominate the electronic battlespace.

• Operate & Maintain Advanced Electronic Systems – Work with cutting-edge submarine technology.
• Manage Databases, LANs & Electronic Warfare Equipment – Keep classified networks secure.
• Monitor & Repair Command, Control, Computer & Intelligence (C4I) Systems – Ensure mission-critical hardware and software function flawlessly.
• Utilize Fiber Optics, Digital, Microwave & Satellite Tech – Support secure information transfer.
• Diagnose & Restore Automated Information Systems – Apply high-level troubleshooting skills.
• Monitor Security Protocols & System Capabilities – Advise on vulnerabilities and implement protection measures.
• Assist in Submarine Surface & Periscope Operations – Provide technical support for safe navigation.

Both ITS specialties are highly technical, highly classified, and absolutely essential. Whether handling secure comms or electronic warfare, ITSs make sure the sub stays connected, protected, and mission-ready.

Different Roles in ITS

The ITS rating splits into specialized roles, each focused on maintaining secure networks, classified communications, and electronic warfare systems aboard submarines.

Communications Roles

Communications Manager Oversees all communication operations on a submarine.

• Audits communication records and assesses training programs.
• Develops system plans and emergency destruction procedures.
• Manages Communication Security (COMSEC) operations.
• Approves policies and directs Information Assurance programs.
• Plans network expansions and upgrades.
• Serves as unit Information Systems Security Manager (ISSM) or Systems Administrator (SYSADMIN).

Communications Specialist Keeps networks running and data secure.

• Performs network administration and troubleshoots hardware/software issues.
• Detects and reports network intrusions and unauthorized access.
• Conducts system backups, restores, and software installations.
• Operates and monitors communication equipment for voice and data transmissions.
• Stands watch on communication systems to ensure security.

Communications Technician Handles technical support and cybersecurity defense.

• Performs system backups, restores, and software updates.
• Troubleshoots network issues and maintains hardware.
• Uses security programs to defend against cyber threats.
• Monitors telecommunications networks and handles naval message traffic.
• Stands watch to ensure network security and system integrity.

Electronic Warfare (EW) Roles

Electronic Warfare Manager Leads and coordinates submarine EW operations.

• Assesses training and audits EW system records.
• Develops EW system employment plans and shipboard procedures.
• Oversees COMSEC operations and network security programs.
• Approves policies for cyber defense and security countermeasures.
• Manages special security programs and plans network expansions.

Electronic Warfare Specialist Operates EW systems and protects classified networks.

• Monitors, detects, and analyzes threats using EW technology.
• Performs network security assessments and manages cyber defense.
• Operates EW equipment to identify and exploit Signals of Interest (SOI).
• Secures and recovers network data after threats or system failures.

Electronic Warfare Technician Troubleshoots, maintains, and operates advanced EW technology.

• Manages network security and conducts risk assessments.
• Performs software updates, backups, and system restores.
• Analyzes and reports potential threats using EW detection systems.
• Supports submarine operations by maintaining secure communications.

Rank Structure

Salary and Benefits

Salary for the First 6 Years

Monthly pay for Navy enlisted Sailors (E-1 to E-6) in the first six years is laid out in the January 2026 Active Duty Pay chart:

Extra Pays and Allowances

• Housing allowance (BAH): A tax-free allowance when you live off base. Rates depend on pay grade, location, and dependency status.
• Food allowance (BAS): Enlisted Sailors receive $476.95 per month in 2026. See the BAS rates.
• Career Sea Pay: Extra monthly pay for qualifying sea duty. Amounts depend on pay grade and sea time. See the Career Sea Pay table.
• Submarine Duty Incentive Pay: Monthly submarine pay for qualified Sailors assigned to submarine duty. Amounts depend on pay grade and years of service. See the submarine pay table.
• Bonuses and incentives: The Navy may offer enlistment, skill, or reenlistment bonuses for certain training pipelines and manning needs.

Benefits

• Healthcare: Medical and dental care through TRICARE for the member, with options for dependents.
• Leave: 30 days of paid leave each year, plus federal holidays when operationally possible.
• Education: Tuition Assistance and GI Bill benefits for qualifying service.
• Retirement: Blended Retirement System (BRS) with Thrift Savings Plan (TSP) contributions when eligible, plus a pension after 20 years of service.
• Other benefits: Life insurance, family support programs, and VA benefits after separation, based on eligibility.

Training and Promotion Opportunities

Boot Camp & Technical Training

• Start at Recruit Training Command Great Lakes (Boot Camp).
• Class “A” Technical School – Groton, CT | 24–25 weeks
• Training in Microsoft, Cisco, Oracle software & hardware fundamentals.
• Focus on automatic data processing (ADP), cybersecurity, and network operations.
• Hands-on computer lab and submarine simulator training.

Submarine-Specific Training

• Basic Enlisted Submarine School – Groton, CT | 8–9 weeks
• Exclusive to ITSs.
• Indoctrination into submarine operations, security protocols, and systems integration.

First Assignments

• ITSs: Assigned to submarines, communication stations, or shore stations.
• Submarine Duty Bonus Pay – $75–$600 per month, depending on experience and rank.

Advanced Training & Career Progression

• Leadership & specialized training available in cybersecurity, network defense, and information security.
• Opportunities for Officer roles with further education and leadership qualifications.

Post-Service Opportunities

• Certifications and careers in IT, network support, cybersecurity, and computer programming.
• Highly transferable skills in web development, information security, and data management.
• ITSs are among the most technically advanced personnel in the Navy—making them highly sought after in the civilian sector.

Qualifications and Eligibility

Basic Requirements

• U.S. citizen only. No exceptions.
• High school diploma or GED.
• Must qualify for a Top Secret clearance (SCI access).
• Full background check (SSBI) with reinvestigation every five years.
• Immediate family must also be U.S. citizens.
• Must volunteer for submarine duty.

ASVAB Score Requirements

• AR + 2MK + GS = 218 or
• AR + MK + EI + GS = 218 or
• CT + MK + VE = 162 and CT = 55

Skills & Traits That Matter

• Math skills. If numbers aren’t your thing, this isn’t for you.
• Tech-minded. Modern computing, troubleshooting, secure systems. You need to get it.
• Detail-oriented. One mistake can compromise an entire network.
• Strong communicator. Written reports, clear instructions, no room for errors.
• Works well under pressure. Tight quarters, high stakes, no second chances.
• Physically capable. Some strength, good manual dexterity, you’re handling equipment.

This isn’t a job for just anyone. Only highly qualified, disciplined, and security-cleared Sailors make the cut. If you don’t meet the standards, you don’t get in.

The enlistment qualification requirements above are current as of Fiscal Year 202, per the Navy Personnel Command.

More Information

If you wish to learn more about becoming an Information Systems Technician – Submarines (ITS), contact your local Navy Enlisted Recruiter. They will provide you with more detailed information you’re unlikely to find online.

You may also be interested in the following related Navy Enlisted jobs:

• Culinary Specialist – Submarines (CSS)
• Logistics Specialist (LSS)