Cyber Defense Analyst I (Junior Security Engineer)

Job Title

Cyber Defense Analyst I (Junior Security Engineer)

About the Role

The Cyber Defense Analyst I supports Diodes’ Cyber Security Defense Center by monitoring security events, investigating alerts, assisting with incident response, and strengthening the organization’s security posture. Working alongside senior analysts and global IT teams, this role helps detect and respond to threats affecting endpoints, servers, email, identity, networks, and cloud environments.

What You’ll Do

• Monitor security alerts, triage suspicious activity, escalate incidents, and assist with response and remediation.
• Investigate endpoint detections, suspicious processes, authentication anomalies, and potential account compromise; support MFA and account security.
• Analyze phishing reports, malicious URLs and attachments, and sender spoofing; support email security awareness.
• Identify recurring threat patterns and help improve detection logic and use cases.
• Document investigations and evidence, track vulnerability remediation, and contribute to security projects and operational improvements.

Tools You’ll Use

• Security platforms and monitoring tools; Microsoft Defender, Palo Alto Cortex XDR, and Arctic Wolf (preferred exposure).
• Microsoft 365 Security, Active Directory / Entra ID, and endpoint/server security technologies.
• Networking and DNS security tools, including Infoblox (preferred exposure); vulnerability management platforms.
• Exposure to penetration testing, DLP, and digital forensics is a plus.

What You’ll Gain

• Build strong connections through networking and mentoring with members of Diodes’ highly skilled workforce
• Collaboration and exposure to a global team and resources
• Gain Practical, project-based experience that strengthens your technical and professional skills.

Who You Are

• Bachelor’s degree in Cybersecurity, Computer Science, Information Technology, or equivalent experience; target profile includes candidates with 1–3 years of cybersecurity experience or recent graduates.
• Basic networking knowledge: TCP/IP, DNS, HTTP/HTTPS, firewalls, and VPNs.
• Basic understanding of endpoint security, Windows/Linux server security, Active Directory/Entra ID, and email security.
• Strong troubleshooting, analytical thinking, log review, and evidence-based investigation skills.
• Clear written and verbal communication; curiosity, initiative, and willingness to learn.
• Hands-on learning through Hack The Box, TryHackMe, CTFs, GitHub projects, or certifications is valued; certifications are not prioritized over practical investigative ability.

Life at Diodes

Diodes Incorporated delivers advanced analog and power semiconductor solutions to the world’s leading technology companies, driving innovation, efficiency, and performance across high‑growth markets. Our teams collaborate across engineering, manufacturing, and corporate functions in a fast‑paced, transparent culture guided by Integrity, Commitment, and Innovation.

We design reliable technology that improves the world—while prioritizing sustainability, safety, and employee well‑being.

Our Vision: Inspire future technology through leading semiconductor solutions.

Diodes Incorporated is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.