Lead Security Analyst

Ready to make a real impact in cybersecurity? At Critical Start, we're not just protecting organizations; we're redefining how it's done. We're a team united by an inspiring purpose: to stop breaches, simplify security, and shape the future of cyber defense. If you're passionate about cutting-edge technology, thrive in a collaborative environment, and want your work to truly matter, you've found your home. 

We deliver 24x7 AI-accelerated, human-validated detection, investigation, and response across IT and OT. This means we cut through the noise, investigate real threats, and take trusted, SLA-backed action—all powered by the brightest minds and the latest AI. Since 2012, we've been helping organizations outpace evolving attacks with faster response, fewer escalations, and measurable risk reduction. 

Innovation isn't just a buzzword here; it's our DNA. We pioneered the first MOBILESOC app for on-the-go detection and response, infused AI into automated alert resolution to eliminate noise, and slashed investigation time by an astounding 99.3%. We're transforming how security teams work, and you could be a part of it. From AI-assisted triage to analyst copilots that elevate human expertise, we combine machine intelligence with human judgment to deliver outcomes our customer’s trust. 

If you're looking for a high-trust, high-impact team where your ideas are amplified by AI and valued by colleagues and customers alike, Critical Start is the place for you. Come build the future of cybersecurity with us. 

Want to hear from our team? Watch these videos to gain insights into life at Critical Start or check out our Glassdoor reviews for an inside look. 

Critical Start is actively seeking a Lead Security Analyst to support a team of analysts in their learning and professional development within our Managed Security Services business. In this role, you will be responsible for providing information security monitoring and response in the DFW, TX region, with no travel required. The ideal candidate will excel in communication, confidently engaging with individuals at all levels of management within the organization. Additionally, they should demonstrate exceptional interview and screening skills, be comfortable multitasking in a fast-paced, deadline-oriented environment, and consistently uphold a high level of confidentiality

• →The Lead Security Analyst assumes the role of the first-line supervisor for analysts within the SOC.
• →They receive and respond to potential security incidents that have been escalated by the security analysts.
• →Review the case notes provided by analysts, and if necessary, conduct further in-depth analysis. This may involve analyzing payloads, signatures, attackers, IOC's, and threat intelligence.
• →Act as mentors and trainers for Senior and Principal Analysts, providing on-the-job training (OJT) and structured technical training.
• →Conduct escalation and orchestration reviews to ensure quality assurance.
• →Take responsibility for team training initiatives aimed at improving the overall efficiency of the SOC.

• → 2-3 years of experience in Information Security.
• → Possession of CASP+ certification or an equivalent or higher certification.
• → Certifications in MDR Tool Suite from relevant vendors.

Imagine a dynamic, enjoyable, and rewarding work environment. We are professionals, and the work we do holds immense significance, like saving our customers from potential disasters. However, we believe in not taking ourselves too seriously.  

Prefer a casual dress code every day? No problem, as we find comfort enhances our thinking.  

Our workplace in Plano, TX offers open offices, collaborative meeting spaces, phone rooms, and wellness rooms. In the breakroom, friendly competition arises with games like ping-pong, bubble hockey machine, foosball, or the gaming machine. What harm does a little healthy competition among friends do?  

It's important to note that specific physical and mental requirements may vary depending on the nature of the office job, organization, and individual responsibilities.  

• Stationary position for extended periods of time.  

• Constantly operate a computer.   

• Occasionally you may be required to move equipment or other items up to 20 lbs.  

• The ability to communicate information and ideas so others will understand. Must be able to exchange accurate information in these situations.  

• Must be able to apply established protocols in a timely manner.  

• Make timely decisions in the context of workflow.  

• Ability to complete tasks and perform in situations requiring speed deadlines, or productivity quota.  

• Ability to work effectively and efficiently in high stress situations.  

• Ability to simultaneously address multiple complex problems.  

For positions that can or will be performed, in whole or in part, remotely within the U.S., range and benefits information for this position are being included in accordance with requirements of various state/local pay transparency legislation. Please note that salaries may vary for different individuals in the same role based on several factors, including but not limited to location of the role, individual competencies, education/professional certifications, experience, performance in the role and potential for revenue generation (sales roles only). 

The application deadline for this position is Oct 26, 2026. 

Interested candidates are invited to visit our career site and apply for the position: https://www.criticalstart.com/careers/ 

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