Lead Security Analyst

Critical Start, Inc.; Dallas (TX); On-site; USD 110,000 - 135,000; Full time

Job summary

Critical Start, Inc. is seeking a Lead Security Analyst to support a team of analysts in the Managed Security Services group in the Dallas area.

You will provide information security monitoring and response with no travel required, engaging with management across the organization to drive timely containment and remediation. Ideal candidates have 2–3 years in information security, and hold CASP+ or equivalent certifications, plus MDR tool suite credentials.

Qualifications

• 2–3 years of experience in information security or security operations.
• Certified in CASP+ or equivalent; continuous professional development.
• Certifications in MDR tool suites from relevant vendors preferred.

Responsibilities

• Lead and supervise SOC analysts; ensure incident response quality.
• Receive and triage security incidents escalated by analysts.
• Review case notes; perform in-depth analysis of payloads, IOCS and threats.
• Mentor Senior/Principal Analysts; provide on‑the‑job and formal training.
• Oversee escalation reviews and improve SOC efficiency.

Skills

Information Security

CASP+ Certification

MDR Tool Suite Certification

Job description

Who We Are

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.

Who We Are

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.

Who You Are

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

What You Will Be Doing?

• 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.

What You Will Bring?

• 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.

What It’s Like Working Here

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