Getting a Cybersecurity Job: Where to Start and What Skills You Need

The common cybersecurity roles, the core skills you need, how to build legal hands-on experience, choosing certifications, and preparing your resume.

You have worked in IT support for 2 years, resetting passwords, setting up laptops and fixing email issues every day. Then the company is hit by a phishing email and several employees click the link. You are the one checking machines late into the night, and you realise this work is far more challenging than your usual tasks. The next question is: how do you move into cybersecurity for real?

What jobs exist in cybersecurity

Cybersecurity is not only "ethical hackers". Common roles roughly break down as follows:

• SOC Analyst: monitors and analyses alerts from security systems, separating real threats from noise. A common starting point
• Incident Responder: handles incidents: containing damage, finding the root cause and restoring systems
• Penetration Tester: tests systems with authorisation to find vulnerabilities before attackers do
• Security Engineer: designs and maintains defences such as firewalls, access management and cloud security
• GRC (Governance, Risk, Compliance): handles policy, risk assessment and standards compliance. Suits people strong in documentation and coordination

Core skills to build first

Security is built on understanding how systems work. Before studying attacks, get solid on these:

• Networking: TCP/IP, DNS, HTTP/HTTPS, ports, reading connection logs
• Operating systems: comfortable with Linux and Windows command lines, file and user permissions
• Scripting: Python or PowerShell, enough to automate repetitive tasks
• Cloud basics: understanding permissions and storage settings on the major cloud providers
• Communication: explaining risk to non-technical people and writing clear incident reports

The people who protect systems best are the ones who understand how those systems work on a normal day.

Build experience legally

The first rule of this field: never test a system you do not have written permission to test. Even with good intentions, it may be illegal. Safe options include:

• A home lab: set up virtual machines on your own computer, install an open-source SIEM and practise reading logs
• Training platforms: such as TryHackMe or Hack The Box, which provide environments built for practice
• CTF competitions: solve challenges and meet people in the field
• Bug bounties: only official programmes companies announce, strictly within the stated scope

Record what you do as short write-ups: the challenge, your method and what you learned. These write-ups are your portfolio.

How much certifications help

In this field certifications genuinely help you pass initial screening, but pick the right level:

• Entry level: such as CompTIA Security+ or ISC2 Certified in Cybersecurity (CC), covering broad fundamentals
• Technical specialism: such as OSCP for penetration testing, which focuses on a hands-on exam
• Management level: such as CISSP, which requires work experience under the issuer's conditions

Check the latest requirements and exam fees directly on the issuer's website before deciding, and remember that a certificate without labs or write-ups behind it carries less weight than you might think.

Resume and interview preparation

• Bring forward past work related to security, e.g. "Investigated malware-infected machines and wrote prevention steps for the team"
• Add a Projects section linking to your write-ups or GitHub
• Prepare for scenario questions such as "You see an alert for repeated failed logins from abroad. What do you do first?"
• Say so honestly when you do not know, then explain how you would find out. Interviewers in this field value honesty highly

Where to start

1. Choose one first target role, such as SOC Analyst
2. Solidify networking and Linux over 1 to 2 months
3. Set up a home lab and solve 2 to 3 challenges a week on a training platform
4. Write at least 5 write-ups
5. Pick one entry-level certification that matches the role
6. Apply with links to your work, and apply in parallel for IT roles close to security work

If infrastructure interests you too, read cloud and DevOps jobs in Thailand. Find foundation courses at courses from our learning partners, and browse open roles on the job listings page.