Network Security Analyst 2 (Onsite)

Serigor Inc.; Austin (TX); On-site; USD 90,000 - 130,000; Part time

Job summary

Serigor Inc. seeks a Network Security Analyst II for an onsite, 10-month engagement in Austin, TX. The role focuses on monitoring, detecting, and responding to security events across on-premises, cloud, and endpoint environments, with emphasis on SIEM, SOAR, and EDR capabilities.

The ideal candidate will have hands-on experience with SIEM platforms, network security concepts, and incident response, delivering clear documentation and leadership-ready summaries to stakeholders.

Qualifications

• Bachelor's degree in cybersecurity or related field.
• Hands-on experience with SIEM, SOAR, EDR, and network security.
• Strong knowledge of security frameworks such as NIST, CIS Controls.

Responsibilities

• Monitor security alerts, logs, network events, and endpoint telemetry.
• Analyze suspicious activity and determine scope, impact, and response actions.
• Perform incident triage, investigation, escalation, and containment coordination.
• Develop and tune detection rules, dashboards, alerts, and playbooks.
• Support threat hunting using KQL, SPL, and investigative techniques.
• Document findings and communicate with security leadership and stakeholders.

Skills

SIEM

SOAR

EDR

XDR

Incident response

KQL

SPL

Threat hunting

Security monitoring

Network security

Education

Bachelor's degree in cybersecurity

Tools

Microsoft Sentinel

Splunk

EDR tools

Job description

Job Title: Network Security Analyst 2 (Onsite)

Location: Austin, TX

Duration: 10 Months with possible extension

Job Description:

The Network Security Analyst II performs advanced cybersecurity and network security analysis work in support of the Client enterprise security operations. This role is responsible for monitoring, detecting, investigating, and responding to security events across on-premises, cloud, and endpoint environments. The ideal candidate is a hands-on security operations professional with strong experience across SIEM, SOAR, EDR, network detection, and incident response platforms. This role requires sound judgment, technical depth, attention to detail, and a strong commitment to protecting the Client systems, data, and services that support the health and well-being of Texans.

Essential Job Functions:

• Monitor security alerts, logs, network events, endpoint telemetry, and threat intelligence feeds.
• Analyze suspicious activity, anomalous network behavior, malware indicators, endpoint detections, and SIEM correlation events to determine scope, impact, and required response actions.
• Perform incident triage, investigation, escalation, containment coordination, and documentation in alignment with the Client security operations procedures.
• Develop, tune, and maintain detection rules, dashboards, alerts, playbooks, and queries to improve visibility across network, endpoint, identity, and cloud environments.
• Support threat hunting activities using KQL, SPL, packet/session analysis, endpoint telemetry, and other investigative techniques.
• Assist with vulnerability, risk, and control assessments for network security infrastructure and enterprise information systems.
• Document findings, prepare incident reports, track corrective actions, and communicate technical information to security leadership and business stakeholders.
• Collaborate with network, infrastructure, cloud, endpoint, and application teams to validate security events and implement risk mitigation measures.
• Maintain awareness of emerging cyber threats, attack techniques, indicators of compromise, and security best practices relevant to healthcare and public-sector environments.
• Support compliance, audit, and reporting activities by providing evidence, metrics, and security operations documentation as requested.

Required Qualifications:

• Minimum of seven years of experience in cybersecurity, network security, security operations, incident response, or a closely related information security role.
• Hands-on experience with Microsoft Sentinel, including incident management, analytics rules, workbooks, automation, data connectors, and Kusto Query Language.
• Experience using SIEM for log analysis, alert investigation, dashboarding, correlation searches, and security monitoring.
• Experience with NDR for network traffic analysis, packet/session investigation, threat detection, and incident support.
• Experience with EDR tools, including endpoint alert triage, device investigation, advanced hunting, and response actions.
• Working knowledge of network security concepts, including firewalls, IDS/IPS, proxy logs, DNS, VPN, TCP/IP, segmentation, and secure network architecture.
• Ability to analyze complex security events, correlate data across multiple sources, and produce clear written documentation and recommendations.
• Knowledge of security frameworks, standards, and regulatory considerations such as NIST, CIS Controls, HIPAA, and state information security requirements.
• Strong communication, collaboration, problem-solving, and analytical skills.

Preferred Education and Certifications:

• Bachelor's degree in cybersecurity, computer science, information systems, information technology, or a related field. Relevant experience may be considered in place of education where applicable.
• Microsoft security certifications are strongly preferred, such as Microsoft Certified: Security Operations Analyst Associate, Microsoft Certified: Cybersecurity Architect Expert, Microsoft Certified: Azure Security Engineer Associate, or Microsoft 365 Defender-related certifications.
• Additional preferred certifications include CompTIA Security+, CySA+, GIAC security certifications, CISSP, CISM, CISA, Splunk Core Certified Power User, Splunk Enterprise Security Certified Admin, or SentinelOne product certifications.

Knowledge, Skills, and Abilities:

• Knowledge of SIEM, SOAR, EDR, XDR, network detection and response, log management, and threat intelligence concepts.
• Skill in writing and interpreting KQL, SPL, and security queries to support investigations and reporting.
• Skill in identifying indicators of compromise, attacker tactics, suspicious network patterns, and endpoint-based threats.
• Ability to prioritize alerts, document investigative steps, and elevate incidents based on severity and business impact.
• Ability to work independently and collaboratively in a security operations environment with shifting priorities and time-sensitive incidents.
• Ability to communicate cybersecurity risks, findings, and recommended actions to both technical and non-technical audiences.

Work Expectations:

• Participate in incident response, escalation, and after-action review activities as needed.
• Support enterprise security monitoring for systems that process, store, or transmit sensitive information.
• Follow the Client policies, procedures, standards, and applicable state and federal security requirements.
• Maintain accurate operational documentation, investigation notes, metrics, and leadership-ready summaries.
• May be required to provide support outside normal business hours during high-priority security incidents or planned maintenance activities.

Candidate Skills and Qualifications:

Minimum Requirements:
Candidates that do not meet or exceed the minimum stated requirements (skills/experience) will be displayed to customers but may not be chosen for this opportunity.

Years

Required/Preferred

Experience

7

Required

Knowledge of SIEM, SOAR, EDR, XDR

7

Required

Experience with security log collection and management

7

Required

Experience with threat intelligence concepts

7

Required

Skill in writing and interpreting KQL, SPL, and security queries to support investigations and reporting

7

Required

Experience in SIEM platform/architecture support

7

Required

Experience in detection engineering methodology and implementation

10

Preferred

Knowledge of SIEM, SOAR, EDR, XDR, NDR

10

Preferred

Experience with security log collection and management

10

Preferred

Experience with threat intelligence concepts

10

Preferred

Skill in writing and interpreting KQL, SPL, and security queries to support investigations and reporting

10

Preferred

Experience in SIEM platform/architecture support

10

Preferred

Experience in detection engineering methodology and implementation