Start here
Do not collect certifications
The most common mistake in military transition is stacking credentials that overlap. Three certifications in the same band do not make you three times more employable; they make you look unfocused and they cost you nine months.
The sequence below is deliberately short. Pick one foundation credential, one security core credential, and one specialisation aligned to the job postings you are actually reading. That is the whole plan.
Tier one
Foundation credentials
Skip these only if you already hold a technical role and can evidence it. Otherwise they are the fastest route to a first interview.
| Certification | What it proves | Typical study time | Best for |
|---|---|---|---|
| CompTIA A+ | Hardware, operating systems, troubleshooting, basic networking | 8–12 weeks | No prior IT role |
| CompTIA Network+ | Network fundamentals, topologies, protocols, troubleshooting | 6–10 weeks | Signal, comms and IT MOS holders |
| Cisco CCNA | Routing, switching, IP services and security fundamentals | 10–16 weeks | Anyone targeting network engineering |
| CompTIA Cloud+ | Cloud architecture, deployment, security and operations | 8–12 weeks | Roles moving to cloud infrastructure |
Tier two
The security core
If you take one certification before separating, take Security+. It appears in more DoD baseline categories than any other credential and it clears the most job posting filters.
| Certification | What it proves | Typical study time | Note |
|---|---|---|---|
| CompTIA Security+ | Core security functions, risk, cryptography, incident response | 8–12 weeks | Baseline for IAT II and IAM I |
| ISC2 SSCP | Operational security across seven domains | 10–14 weeks | Requires documented experience |
| CompTIA CySA+ | Behavioural analytics, threat detection and response | 10–14 weeks | Natural step after Security+ |
| EC-Council CND | Network defence, monitoring and hardening | 8–12 weeks | Appears across several DoD bands |
Tier three
Specialisation
Choose one direction. These take longer, cost more and several carry experience requirements you may need to accrue first.
Blue team
CySA+, GCIA, GCIH, CFR. Monitoring, detection, incident handling. The largest volume of DoD-adjacent openings sits here.
Red team
PenTest+, CEH, OSCP. Smaller market, higher bar, and the practical exams are genuinely hard. Do not start here.
Risk and audit
CISA, CRISC, CAP. Strong fit for anyone who ran compliance, inspections or readiness reporting in service.
Management
CISM, CISSP, CCISO. CISSP requires five years of documented experience; military time frequently counts.
Cloud security
CCSP, AWS and Azure security specialities. Fast-growing and well paid, but assumes solid infrastructure grounding.
Engineering
CASP+, CSSLP, CISSP-ISSAP. The IASAE route. Expect to need real design experience, not just study.
Sequencing
A realistic twelve months
If you have a year before separation, this is the pattern that works for most people in a technical role.
- Months 1–3 — Foundation credential, funded by COOL or TA while still in
- Months 4–6 — Security+, the single highest-return exam
- Months 7–9 — Specialisation study and hands-on lab work
- Months 10–12 — Specialisation exam, resume rebuild, applications out
Certify while you are still in. Funding is easier, your time is more structured, and you avoid the worst version of transition: job hunting and exam prep in the same week.
Verify before you spend. Certification names, exam codes, prerequisites and prices change. Confirm current details with the issuing body and, for DoD roles, against the current DoD Cyber Exchange listing. Study times above are averages for people already working in a technical role.