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Entry Level Security Analyst Jobs in O Fallon, IL

Cyera

Security Engineer

Creve Coeur, MO · On-site +1

$80K - $150K/yr

This role is designed for someone who is ready to grow beyond traditional analyst responsibilities ... AWS entry-level certification required at minimum, such as AWS Certified Cloud Practitioner. AWS ...

Varsity Tutors

SIE Tutor

Saint Louis, MO · Remote

$18 - $40/hr

... type analysis for SIE examination. Guides students through distinguishing security types ... entry-level financial services professionals preparing for the SIE as a prerequisite to Series ...

Central Bancompany

Universal Banker

Webster Groves, MO · On-site

$16.75 - $21/hr

This entry level position into Retail is used to identify tellers with less than 1 year of ... Adhere to all established security procedures. * Maintain neat and orderly work area and ensure ...

Central Bancompany

Universal Banker

Millstadt, IL · On-site

$17.50 - $21.75/hr

This entry level position into Retail is used to identify tellers with less than 1 year of ... Adhere to all established security procedures. * Maintain neat and orderly work area and ensure ...

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All JobsSecurity Analyst JobsEntry Level Security Analyst JobsEntry Level Security Analyst Jobs in O'Fallon, IL

Entry Level Security Analyst information

See O Fallon, IL salary details

$36.8K

$100.1K

$131.5K

How much do entry level security analyst jobs pay per year?

As of Aug 7, 2026, the average yearly pay for entry level security analyst in O'Fallon, IL is $100,122.00, according to ZipRecruiter salary data. Most workers in this role earn between $85,400.00 and $121,300.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as an entry level security analyst, and why are they important?

To thrive as an Entry Level Security Analyst, you need a foundational understanding of cybersecurity principles, networking, and operating systems, usually backed by a relevant degree or certifications like CompTIA Security+. Familiarity with tools such as SIEM platforms, vulnerability scanners, and intrusion detection systems is commonly expected. Strong analytical thinking, attention to detail, and effective communication help distinguish high performers in this role. These skills are crucial for identifying threats, mitigating risks, and supporting an organization's overall security posture.

What are some common challenges faced by entry level security analysts when starting out, and how can they overcome them?

Entry level security analysts often encounter challenges such as learning to quickly identify real threats among large volumes of security alerts, adapting to rapidly changing technologies, and understanding complex organizational security policies. To overcome these challenges, new analysts should focus on continuous learning, actively seek mentorship from experienced team members, and make use of available training resources. Regular collaboration with IT and security teams also helps build practical skills and confidence in handling incidents effectively.

What is the difference between Entry Level Security Analyst vs Security Technician?

AspectEntry Level Security AnalystSecurity Technician
CertificationsCompTIA Security+, CISSP (entry-level), Security+CompTIA Security+, Network+
Work EnvironmentOffice-based, cybersecurity teams, monitoring security systemsOn-site, installing and maintaining security hardware and systems
Employer & IndustryIT firms, corporate security departments, government agenciesSecurity service providers, retail, facilities management
Common Search & ComparisonYesYes

Entry Level Security Analysts focus on monitoring, analyzing, and responding to security threats using software tools, often working in office environments within IT or corporate security teams. Security Technicians primarily install, maintain, and troubleshoot physical security hardware like cameras and access controls. While both roles require foundational security certifications, their daily tasks and work settings differ, making them distinct career paths in the security industry.

What does an entry level security analyst do?

Entry-level security analysts examine information to help identify risks and threats, then recommend and help implement strategies to stop those threats from damaging their employer’s network or property. In this role, you typically work under a senior analyst to develop your skills and learn more about the tools and techniques used to be more effective in your job. Many security analysts specialize in the industry. For example, cybersecurity analysts often focus on problems such as hacking and viruses, while physical security analysts may look for blind spots in camera coverage and patrols at private facilities. Entry-level security analysts usually work regular hours, but employers may occasionally ask you to work nights or weekends, based on their security needs.

What is an entry level security analyst?

An entry level security analyst is a professional responsible for monitoring and analyzing an organization’s security systems to identify vulnerabilities and respond to security incidents. They typically use tools like intrusion detection systems and may hold certifications such as CompTIA Security+ or CISSP to support their work. This role often requires basic knowledge of cybersecurity principles and the ability to work in a team environment.
More about Entry Level Security Analyst jobs
What are the most commonly searched types of Security Analyst jobs in O'Fallon, IL? The most popular types of Security Analyst jobs in O'Fallon, IL are:
What cities near O'Fallon, IL are hiring for Entry Level Security Analyst jobs? Cities near O'Fallon, IL with the most Entry Level Security Analyst job openings:
Entry Level Security Analyst jobs near you
Infographic showing various Entry Level Security Analyst job openings in O'Fallon, IL as of August 2026, with employment types broken down into 86% Full Time, and 14% Part Time. Highlights an 86% In-person, and 14% Hybrid job distribution, with an average salary of $100,122 per year, or $48.1 per hour.

Sr Security Analyst with Security Clearance

ECS

Scott Air Force Base, IL • On-site

$92K - $121K/yr

Other

Re-posted 20 days ago

Job description

Job Description ECS is seeking a Senior Security Analyst to work in our Scott AFB, IL office. As a leading managed cybersecurity services provider, ECS delivers highly tailored cybersecurity solutions aligned to each customer's mission needs. The Professional Services Team partners with customers to understand their environment, strengthen security posture, and deliver measurable outcomes across detection, response, and continuous improvement. We are seeking a Security Analyst with strong Elastic SIEM experience and solid cybersecurity fundamentals who can investigate alerts, hunt threats, and help operationalize detection capabilities across network, cloud, and endpoint telemetry. This role requires analytical rigor, comfort working directly with customers, and the ability to operate with limited oversight in fast-paced environments. Key Responsibilities * Network Monitoring & Intrusion Detection: Perform analysis using defense tools including IDS/IPS, firewalls, and host-based security systems. * SIEM Operations (Elastic SIEM): Use Elastic SIEM to correlate events, identify indicators of compromise, and produce actionable intelligence for response. * Threat Detection Engineering (Analyst-led): Implement and improve log-based and endpoint-based detection strategies; validate detections and recommend tuning based on outcomes. * Content Development: Develop and tune SIEM content such as detection rules, machine learning rules, dashboards, and visualizations aligned to customer requirements. * Activity Correlation: Correlate data across network, cloud, and endpoints to identify attacks and unauthorized actions. * Alert Management & Reporting: Triage alerts from SIEM and other sensors; document incidents with clear technical reporting and recommendations. * Threat Research: Investigate emerging threats and vulnerabilities to enhance detection and incident identification processes. * Phishing Analysis: Analyze phishing submissions and recommend appropriate response actions. * Incident Response Support: Support containment and mitigation activities; contribute to root cause analysis and corrective actions. * Automation & Integrations: Create or maintain scripts (Python/PowerShell) for investigation support, enrichment, and workflow automation; help integrate telemetry sources into Elastic as needed. * Customer Training & Enablement: Provide training to customer teams on SIEM usage, detection capabilities, investigation workflows, and security best practices to drive long-term operational success. * Operational Excellence: Contribute to documentation (runbooks, detection standards, triage playbooks) and continuous improvement of SOC workflows. Required Skills * 2+ years of cybersecurity experience * Elastic SIEM proficiency: Monitoring, detection, triage, and investigation using Elastic SIEM; experience with Kibana and familiarity with Logstash / ingest pipelines preferred * Strong cybersecurity fundamentals including network protocols, encryption concepts, and vulnerabilities * Strong analytical skills for identifying patterns and anomalies across multiple data sources * Scripting/automation experience using Python or PowerShell * Experience creating and tuning SIEM rules, signatures, and dashboards * Strong written and verbal communication skills * Ability to problem-solve and operate under pressure in fast-paced environments * Willingness to support domestic or international travel (short, planned engagements) * Must possess and maintain a U.S. Passport * Must have a Secret clearance, at minimum Desired Skills * Prior experience working in a Security Operations Center (SOC) * Experience with EDR, SIEM, SOAR, and ticketing tools * Familiarity with threat actor tactics, techniques, and procedures (TTPs) * Familiarity with cloud environments (AWS, Azure, GCP) and related security telemetry * Experience supporting Elastic observability data (logs, metrics, traces) for investigations * Certifications such as CISSP, CEH, GCIH, Elastic Certified Analyst, or equivalent * Entry-level cybersecurity certifications (A+, Net+, Sec+, GSEC, etc.) #EverforthECS1 ECS Federal LLC is an equal opportunity employer and does not discriminate or allow discrimination on the basis any characteristic protected by law. All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, or local jurisdiction law. is the federal segment of , a $4B global organization with over 10,000 employees. Our nearly 3,500 professionals deliver advanced technology solutions in data and AI, cybersecurity, and enterprise transformation, serving defense, intelligence, and federal civilian agencies. Our work powers mission-critical outcomes, strengthens technology partnerships, and creates meaningful opportunities for our people. We are defined by a commitment to excellence in delivery, a culture of innovation, and an environment where talent can thrive and grow. We value: * Attracting and developing top talent and high-performing teams * Fostering a culture that is engaging, accountable, and mission-driven Meet the challenge. Make a difference with Everforth ECS!

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