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
We are searching for a dedicated and proficient Cybersecurity Engineer to join our Managed Security Services team. The perfect candidate should have extensive knowledge of Security Information and Event Management (SIEM) tools, including Microsoft Sentinel, Splunk, and Sumo Logic. They should also be well-versed in Endpoint Detection and Response/Extended Detection and Response (EDR/XDR) integrations like SentinelOne, Defender for Endpoint/Server, CrowdStrike, and Palo Alto Cortex XDR. As a Cybersecurity Engineer, you will have a vital role in providing managed security services to our clients, guaranteeing the smooth operation of their security infrastructure.
What You Will Be Doing?
- Skills Maintenance: Keep your industry knowledge up-to-date by maintaining deep expertise in SIEM tools and EDR/XDR products.
- Client Interaction: Deliver our managed services to clients efficiently, working on project-based tasks related to SIEM and EDR/XDR technologies. Collaborate closely with clients to address technical issues, provide value reports, and configure their systems effectively.
- Technical Guidance: Offer technical guidance, expertise, and configuration support to clients, helping them maintain strong and efficient SIEM and Endpoint security programs.
- Best Practices: Assist clients in implementing best practices for deploying and configuring endpoint agents, endpoint security policies, log forwarders, data sources, content, and alerts.
- Security Enhancement: Assist clients in enhancing the security of their SIEM and Endpoint products, ensuring alignment with industry standards and our program offerings.
- Issue Resolution: Troubleshoot problems related to data source interactions with SIEM technologies and API connections between supported security integrations and our platform (CORR).
- Automation Opportunities: Identify chances to automate parts of SIEM and Endpoint engineering tasks to improve efficiency and accuracy.
- Documentation Management: Create and update extensive security documentation, encompassing playbooks, standard operating procedures, and training materials.
- Ongoing Education: Keep abreast of the latest security threats and trends, integrating this knowledge into our security solutions. Attain and maintain relevant security certifications.
- Collaborative Teamwork: Work closely with fellow cybersecurity engineers, product managers, and architects to devise and implement innovative security solutions that offer the highest level of protection for our clients.
What You Will Bring?
Required Qualifications:
- Bachelor's degree in Computer Science, Cybersecurity, Information Technology, or an equivalent field, or equivalent experience and industry certifications.
- 3+ years of experience with SIEM tools (Splunk, Microsoft Sentinel, Sumo Logic, or Devo).
- Familiarity with various security data sources, log formats, and ingestion methods.
- Experience in creating SIEM content, including alerts, reports, and dashboards.
- Excellent communication and customer service skills.
- 1+ years of experience with any EDR/XDR solution.
- Ability to establish rapport and trust with customers, even in discussions about complex technical issues.
- Proficient in troubleshooting technical issues related to security products.
Desired Qualifications:
- 3+ years of experience with Cloud Technologies (Azure, AWS, or GCP).
- Experience deploying security solutions in an MSSP environment is a plus.
- Experience with DevOps tools is a plus (Terraform, Ansible, Puppet, Salt Stack, etc.).
- Scripting abilities in Bash, PowerShell, Python, or other programming/scripting languages.
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? 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?
What does our Compensation and Benefits package entail?
- Competitive salary with bonus potential
- Comprehensive health benefits with generous employer contributions for medical, dental, and vision
- Additional Ancillary Benefits offered at 100% employee contribution
- Unlimited PTO (Paid Time Off) policy
- Paid Parental and Military Leave
- Dental and Vision Plan
- Employer-provided Life Insurance, Long-Term Disability, and Short-Term Disability coverage
- Additional Voluntary Life Insurance coverage
- 401(k) Plan with Matching Program
- Mines Employee Assistance Program
- Monthly Wellness Initiatives
- Optional Pet Benefits Discount Plan
We prioritize your privacy and security. Please note that Critical Start will never request financial information or sensitive personal data during the interview process. If you encounter any suspicious requests, do not respond and contact us directly at recruiting@criticalstart.com. Thank you for helping us maintain a safe and trustworthy hiring experience.
Critical Start welcomes people from all backgrounds and walks of life. One of our core values is to “Do what’s best for our employees,” and that starts with the hiring process by finding the best candidates and providing an environment that upholds equal employment opportunities for all employees and applicants, strictly prohibiting any form of discrimination or harassment based on race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.
This policy encompasses all aspects of employment, including recruitment, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training.
Mental and Physical Requirements
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.
Physical:
- 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.
Mental:
- 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).
Compensation:
The total compensation range (base) being offered for this role is [$80,000 - $110,000 USD].
Additional Compensation:
This role is not eligible for additional or other forms of compensation.
Employment Benefits:
Comprehensive health benefits with generous employer contributions for medical, dental, and vision, unlimited PTO (Paid Time Off) policy, paid Parental and Military Leave, dental and vision plan, Employer-provided Life Insurance (up to $100K coverage), Long-Term Disability, and Short-Term Disability coverage, 401(k) Plan with Matching Program, 24/7/365 availability of Employee Assistance Program.
Application Deadline:
The application deadline for this position is February 28, 2026.
How to Apply:
Interested candidates are invited to visit our career site and apply for the position: https://www.criticalstart.com/careers/
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