Incident Response Analyst

Thrive; United States; Remote; USD 70,000 - 100,000; Full time

Job summary

Thrive is seeking an Incident Response Analyst to join a growing Security Operations Center. The role focuses on monitoring, detecting, and responding to cybersecurity incidents, while improving client security postures with defined processes.

You will investigate intrusions, differentiate false positives, and drive incident resolution across 400+ clients. The successful candidate will develop playbooks, contribute to threat intelligence, and work with engineering teams to enhance detection

Qualifications

• Strong understanding of security best practices and incident response.
• Hands-on experience with SIEM, IDS/IPS, EDR and forensic tools.
• Experience in incident handling, threat hunting and playbooks.

Responsibilities

• Monitor security events across multiple sources and SOC platforms.
• Lead incident response and threat hunting for high priority incidents.
• Analyze security incidents and determine remediation steps.
• Develop and maintain incident response playbooks and runbooks.
• Collaborate with cross-functional teams and participate in tabletop exercises.
• Stay updated on threats and advise clients on protective measures.

Skills

SIEM

TCP/IP

IDS/IPS

EDR

Windows

Linux

Malware analysis

Network forensics

Tools

Forensic tools

Job description

About Us

Thrive delivers upon the promise of technology by enabling our clients’ digital transformation journeys with best practices on an AI, cybersecurity and cloud focused NextGen managed services platform.

Thrive’s culture is powered by diverse talent, big ideas, and a customer-first mindset—and it’s what truly sets us apart. Thrive is built for people who want more than a weekday routine. If you’re hungry to grow, eager to tackle new challenges and ready to drive real impact in a rapidly expanding environment, then welcome to THRIVE!

Position Overview

With a growing client base, Thrive is continuing to build out its security team. We are looking to hire an Incident Response Analyst to take a role within our Security Operation Center. The analyst will assist with continuously monitoring and improving our customers’ security posture, while preventing, detecting, analyzing, and responding to cybersecurity incidents utilizing technology and well-defined processes and procedures. The ideal candidate will have a passion for information security and will value what a properly managed Security monitoring solution can bring to our client needs.

• Process investigation requests from SOC Analysts who perform security event monitoring using Security Information and Event Management (SIEM) from multiple sources, including but not limited to, events from network and host-based intrusion detection/prevention systems, network infrastructure logs, systems logs, applications, and databases

• Investigate intrusion attempts, differentiate false positives from true intrusion attempts, and perform in-depth analysis of exploits

• Lead incident response and threat hunting efforts for confirmed High Priority security incidents and follow through until resolution

• Utilize threat intelligence to identify and investigate potential security threats

• Develop playbooks for incident response and incident management processes, including threat triage, incident investigation, and incident resolution

  • Conduct regular reviews of playbooks to ensure they are current and effective
  • Work with cross-functional teams to ensure that playbooks are aligned with the overall security strategy and goals
  • Participate in tabletop exercises and drills to test and validate playbooks
  • Monitor and evaluate security incidents to identify opportunities for improving playbooks
  • Keep up-to-date with current security threats and trends to ensure that playbooks are relevant and effective

• Actively investigate the latest security vulnerabilities, advisories, incidents, and TTPs (tactics, techniques, and procedures) and work with the Security Engineering team to recommend use cases

• Proactive monitoring, threat hunting, and response of known and/or emerging threats

• Carry out Thrive’s information security strategy both internally and externally for 400+ clients

• Analyze data from our SOC, SIEM and EDR platforms and determine if further analysis is needed

• Work within Thrive’s security standards and best practices and recommend future enhancements

• Stay abreast of security events and techniques to keep our clients protected

Qualifications

• Demonstrates comprehension of best security practices

• Has advanced knowledge of the following systems and technologies:

  • SIEM (Security Information and Event Management)
  • TCP/IP, computer networking, routing, and switching
  • IDS/IPS, penetration and vulnerability testing
  • Firewall and intrusion detection/prevention protocols
  • Windows, UNIX, and Linux operating systems
  • Network protocols and packet analysis tools
  • EDR, Anti-virus, and anti-malware
  • Content filtering
  • Email and web gateway
  • Malware, Network, or System Analysis

• Professional experience in a system administration role supporting multiple platforms and applications

• Ability to collaborate and communicate security issues to clients, peers and management.

• Strong analytical and problem-solving skills

• Adaptability and resilience in rapidly evolving situations

• Ability to be a part of an on-call rotation, occasionally working nights and weekends to support High Priority Security Incidents

Required Skills

• Technical proficiency in networking, operating systems, and security technologies

• Familiarity with security tools like SIEM, IDS/IPS, EDR, and forensic analysis tools

• Understanding of incident response procedures and methodologies

• Understanding of frameworks such as MITRE ATT&CK and the Cyber Kill chain,

• Familiarity with TCP/IP network protocols, application layer protocols (e.g., HTTP, SMTP, DNS, etc.)

• Experience in responding to and investigating cloud, system or network intrusions

• Excellent Written and Verbal Communication Skills

• Expertise in forensics, malware analysis, and network intrusion response

Preferred Skills

• Knowledge of common Windows and Linux/Unix system calls and APIs
• Knowledge of programming languages
• Knowledge of internal file structures for file formats commonly associated with malware (e.g. OLE, RTF, PDF, EXE, etc.)
• Knowledge or experience in Detection Engineering