What does a Chief Information Security Officer do? Explore CISO responsibilities, skills, and career paths in this insightful guide for aspiring CISOs and executives.
Security engineers play a critical role in safeguarding an organization’s IT infrastructure and data from cyber threats. Their responsibilities cover a wide range of knowledge and expertise, including software, hardware, firewalls, intrusion detection systems, encryption protocols, and identity management solutions. They analyze potential vulnerabilities, conduct risk assessments, and build organizational security policies and procedures. When a security incident happens, security engineers are on the front lines of incident response (IR), investigating what happened and how to fix it.
While general security engineers focus on the entire digital ecosystem of an organization, others specialize in areas like cybersecurity, cloud, or information security.
We’re here to break down what security engineers do, the different types of security engineers out there, why they matter to businesses, and what a career path could look like.
What does a security engineer do?
Think of a security engineer as the architect of a digital fortress. Their primary focus is on designing, implementing, and maintaining an organization's security infrastructure while keeping cyberattacks at a constant, comfortable distance. These engineering guardians work tirelessly to ensure that sensitive data, critical systems, and identities are protected from digital intrusions.
Above all else, a security engineer’s role is hands-on. They’re natural problem solvers, constantly striking a balance between testing defenses while developing tools and systems that strengthen the organization’s security posture.
Key security engineer responsibilities:
System and network security: Building firewalls, intrusion detection systems (IDS), intrusion prevention systems (IPS), and fortified servers and systems
Regular audits and vulnerability assessments: Evaluating technologies and core systems for weaknesses and potential vulnerabilities
Detection and response: Developing security measures to quickly detect and respond to real-time threats and vulnerabilities
Policy development: Developing security-first guidelines and best practices for the entire organization to follow
Collaboration: Working closely with IT teams, developers, and other stakeholders to build and maintain a one-team approach to security
Cybersecurity engineer vs. security engineer
While security engineer and cybersecurity engineer are often used in the same context (or interchangeably), there are distinct differences between these two important roles.
Cybersecurity engineers focus exclusively on building and maintaining secure computer systems within an organization. If and when a cyberattack happens, a cybersecurity engineer is in the thick of an incident, breaking down how the incident happened, what was impacted, and how to prevent the same incident in the future. You’ve no doubt heard about businesses being hit by ransomware attacks or falling victim to business email compromise (BEC) schemes—cybersecurity engineers are key stakeholders for recovery.
Common cybersecurity risks include:
Malware
Advanced Persistent Threats (APTs)
Phishing
Ransomware
Data breaches
Insider threats
Credential theft
Adversary-in-the-Middle (AiTM) attacks
Zero day exploits
Responsibilities of cybersecurity engineers:
Threat detection: Developing, monitoring, and analyzing real-time alerts for signs of suspicious or anomalous activity
Managing security tools: From antivirus software to Security Information and Event Management (SIEM) systems, cybersecurity engineers use a variety of tools to deflect threat activity from the organization’s perimeter, endpoints, and identities
Encrypting data: Safeguarding sensitive information via encryption for extra layers of protection against unauthorized access attempts
Ethical hacking: Running penetration tests, red teaming, or purple teaming either internally or with external vendors to simulate how a threat actor can exploit vulnerabilities and defense gaps specific to the organization’s infrastructure
This role focuses heavily on tracking cyber threats, including threat actors looking for unauthorized access to sensitive information, fast and easy money, and deep, persistent access to an organization’s endpoints.
Cybersecurity engineers play a key role in upholding the financial and reputational stability of a business by keeping cyber threats to a minimum.
What does a cloud security engineer do?
The surge of cloud computing is a game-changer for businesses and enterprises. It cuts costs, introduces massive digital scalability, and provides convenience to both engineers and end users.
But the cloud isn’t off the hook when it comes to security. Cloud security engineers specialize in protecting data, systems, and infrastructure that exist in the cloud.
Common cloud security risks include:
Data loss and breaches
Account hijacking and unauthorized access
Misconfiguration and insecure APIs
Malware
Advanced Persistent Threats (APTs)
Adversary-in-the-Middle (AitM) attacks
Responsibilities of cloud security engineers:
Securing cloud architectures: Making sure platforms such as AWS, Google Cloud, or Azure comply with security policies
Access control: Bringing in measures like Multi-Factor Authentication (MFA) to manage who gets access to sensitive cloud environments and prevent unauthorized access
Data protection: Encrypting and backing up data stored in the cloud
Compliance: Making sure cloud practices meet industry standards like GDPR and HIPAA
Threat detection: Monitoring for potential malicious activity within the cloud environment. For example, using security solutions like Managed Identity Threat Detection and Response (ITDR) to hunt down malicious or compromised OAuth apps.
With most organizations shifting towards hybrid and fully cloud-based environments, this role is increasingly in demand. Cloud security engineers play an essential part in striking the balance between accessibility, scalability, and informed security.
What do information security engineers do?
Information security engineers focus on creating and rolling out security measures that protect an organization’s computer networks and information.
Common information security risks:
Malware
Denial-of-service (DoS) and Distributed-Denial-of-service (DDoS) attacks
Supply chain attacks
Insider threats
Data breaches
Social engineering
Responsibilities of information security engineers:
Data protection: Safeguarding data with things like Identity Access Management (IAM) for confidentiality, integrity, and availability
Vulnerability assessment and risk management: finding potential gaps, assessing risk, and recommending solutions
Security policy development and follow-through: aligning security policies with compliance regulations
IR and forensics: working with engineering and security teams to assess the cause and scope of incidents
What skills do security engineers need?
Being a security engineer isn’t just about technical knowledge. Soft skills also play a huge role in this career path. Security engineers are often at the crux of important security issues that impact the entire business.
Technical Skills:
Network security: Expertise in firewalls, VPNs, and advanced network protocols
Operating systems: Deep understanding of Linux, Unix, and Windows security tools
Programming: Familiarity with scripting languages like Python, Perl, or Bash for automation and penetration tests
Risk Assessment: Knowing how to assess vulnerabilities, quantify, and communicate potential impacts
Soft Skills:
Problem-Solving: Thinking through complex challenges logically and efficiently
Attention to Detail: Attack surfaces are only growing, and with threat actors continuously finding new loopholes, missing the smallest detail puts organizations at risk
Teamwork: Collaborating across departments to ensure every member of an organization understands and prioritizes security
In the world of security engineering, keeping your skills sharp is a must if you want to outpace attackers’ tactics, techniques, and procedures (TTPs).
The security engineering career path
Security engineers fill one of the most critically important roles in today’s digitally reliant world. The oversight, problem-solving, continued learning, and adaptability required for this job make it a fulfilling career for tech-savvy professionals with a passion for security.
Interested in pursuing a security engineer career path? Here are a few tips to help you get started:
Invest in your education: A bachelor’s degree in computer science, information technology, or cybersecurity offers a solid educational foundation (and is sometimes required) for security engineers.
Get grounded in core IT skills: Dive into topics like networking, cloud computing, operating systems, and databases. Take advantage of the open-source security community to learn from real-world practitioners. Attend conferences with speakers and topics you’re passionate about. Join Capture the Flag (CTF) competitions or consider building your home lab to experiment and get hands-on keyboard experience.
Create your path: Build interesting solutions to complex problems, find zero day vulnerabilities in the wild, hone in on a security domain for research; often, the best solutions come from a natural curiosity and a knack for problem-solving.
Make it official with certifications:
CompTIA Security+
Certified Ethical Hacker (CEH)
Certified Information Systems Security Professional (CISSP)
Putting these security engineering milestones on your resume and LinkedIn bio will help you catch a recruiter’s eye and stand out in the job search. They’ll know you’re dedicated to a security engineering career path for the long haul and willing to invest in yourself to reach bigger goals for the organization you work for.
Closing Thoughts
Whether the job is defending entire networks, safeguarding sensitive information, or building resilient cloud systems, the role of a security engineer is essential in any organization.
Whether generalists or specialists, these security engineering professionals bring a unique mix of skills and expertise to solving complex security challenges and maintaining the integrity of IT infrastructure.
Aspiring security engineers should be excited about a career path that is not only rewarding but also highly influential in the future of digital security.
If you’re interested in joining the hunt, we invite you to check out our open roles on our Careers page.
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