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Security Analyst

Job in Tinley Park, Cook County, Illinois, 60483, USA
Listing for: ATOM CYBER SECURITY LLC
Full Time position
Listed on 2026-11-02
Job specializations:
  • IT/Tech
    Cybersecurity, Network Security, Security Management & Operations
Salary/Wage Range or Industry Benchmark: 70000 - 110000 USD Yearly USD 70000.00 110000.00 YEAR
Job Description & How to Apply Below

Description

We are seeking a detail-oriented and proactive Security Analyst to join our dynamic Security Operations Center team. As a Security Analyst, you will be responsible for monitoring, detecting, preventing and responding to security threats and incidents as well as supporting business operations. You will serve as the first line of defense in protecting our organization's systems and data, ensuring security events are identified, analyzed, and escalated appropriately.

Role

and Responsibilities Security Monitoring and Analysis
  • Continuously monitor security tools and platforms for alerts and suspicious activity.
  • Analyze logs and network traffic to identify potential threats or anomalies.
  • Validate and categorize alerts based on severity, urgency, and relevance.
  • Work to improve client security posture
Operational Support
  • Monitor and maintain system and configuration backups to support disaster recovery efforts
  • Assist in the creation and tuning of detection rules to improve monitoring capabilities.
  • Perform routine checks to ensure the health and performance of security tools and technologies.
  • Analyzes and investigates the customer needs through remote diagnostics and qualifying questions over the phone
  • Solves complex system and network problems using logic and knowledge
  • References and contributes to Atom cybersecurity knowledge base
  • Communicates and works effectively as a team with colleagues to solve client issues
  • Assist in server administration, network backups, installs, and special projects
  • Supports wireless access points, switches, firewalls, and other critical network infrastructure components
  • Routinely uses computer and network knowledge to troubleshoot and find the best solution for customer IT needs
  • Willing to gain certifications on Atom Cybersecurity-supported products, software and hardware systems
  • Consistently reviews and prioritizes tickets and workload
  • Documents troubleshooting steps and final resolution to ensure continuity in support
  • Encourages and builds positive relationships and communicates effectively with co-workers, customers and third-party vendors
  • Performs other duties as assigned
  • This is an in-office position with up to 50% travel
Security Hardening and Defense
  • Participate in implementing and maintaining security tools, including firewalls, endpoint protection, and threat detection systems.
  • Develop and enforce security baselines, policies, and procedures for systems and infrastructure.
  • Assist in configuring detection rules and tuning security systems to reduce false positives and improve detection accuracy.
  • Recommend and implement security patches, configurations, or compensating controls to address vulnerabilities.
  • Assist in Incident Response efforts in event of a security breach
  • Triage security tickets from various alert systems.
  • Potential opportunities to participate in some red team activities at times.
  • Performs additional duties as assigned.
Requirements Qualifications and Education Requirements

Education and Experience
  • Associate’s or Bachelor’s degree in Cybersecurity, Computer Science, or a related field (or equivalent experience) or 1-2 years of experience in IT, cybersecurity, or a SOC environment is preferred but not required.
Technical Skills
  • Familiarity with security technologies such as SIEM (e.g., Splunk, Sentinel) EDR, Business Continuity/BDR, firewalls, IDS/IPS, and DLP solutions.
  • Basic understanding of networking concepts (TCP/IP, DNS, VPNs, etc.).
  • Knowledge of common cyber threats, attack vectors, and frameworks (e.g., MITRE ATT&CK).
  • Basic scripting or query knowledge (e.g., Python, Power Shell, or SQL) is a plus.
Certifications (Preferred)
  • CompTIA Security+, CySA+, or equivalent.
  • Certified SOC Analyst (CSA), CEH, or other relevant certifications.
  • CCNA
  • AZ-104
  • MS-102 (Microsoft…
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