Security Engineer III
Security Engineer III
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Job Description
Who We Are
At Critical Start were on a mission to make everyone a valued member of a winning team united by an inspiring purpose: shaping the future of cybersecurity. Since 2012 weve been dedicated to safeguarding organizations from cyberattacks preparing for evolving threats and earning recognition for our innovative contributions to the industry.
We thrive in an agile collaborative environment that fosters creativity and action. At Critical Start innovation drives everything we do. We pioneered the first MOBILESOC app for on-the-go threat detection and response automated alert resolutions to maximize efficiency and cut alert investigation time by 99.3% - transforming the way cybersecurity teams work. Our team and customers genuinely value the impact we make every day.
Want to hear more from our team Watch this video to gain insights into life at Critical Start or check out our Glassdoor reviews for an inside look.
What can we offer you
- A chance to make an impact every daywhether protecting customers or contributing to a greater mission.
- Collaboration with talented supportive teammates who value accountability and growth.
- A commitment to continuous improvement striving for excellence and breaking past mediocrity.
- A culture of learning innovation and inclusivity where every idea matters.
- Recognition for being at the forefront of the industryweve received accolades that prove were doing something right.
- A supportive environment where you belong and your contributions truly matter as one team member put it:Every day presents new challenges and opportunities for growth and the culture is unlike any other.
Who You Are
We are looking for a Security Engineer III to join the Critical Start Technologies Private Ltd. team operating under the Critical Start umbrella supporting our India operations. This is an exciting opportunity for a skilled security professional with 58 years of hands-on experience in security engineering threat detection and investigation. We are looking for a curious technically adept individual who thrives in a fast-paced high-impact environment. You bring deep technical expertise a proactive mindset and a passion for solving complex security challenges using industry-leading tools and frameworks.
The ideal candidate is a driven and resourceful security professional who thrives on diving deep into threat activitywhether its analyzing port scans or crafting custom detection queries. With a strong understanding of the MITRE ATT&CK framework youre capable of building your own detection content and conducting investigations independently without relying solely on predefined rules. You take initiative enjoy improving processes and excel in autonomous project-based environments. Your analytical mindset technical curiosity and collaborative spirit enable you to contribute meaningfully to both team goals and larger security objectives.
What You Will Be Doing
- Investigate and validate alerts generated by industry-standard EDR and SIEM platforms ensuring data quality and investigative clarity for our Security Operations Center (SOC).
- Proactively identify opportunities to improve alert fidelity through detection tuning custom rule development and the creation of IOCs and IOAs.
- Author and maintain clear user-centric investigation procedures to guide SOC analysts and drive consistency in alert handling.
- Collaborate cross-functionally with Engineering and Product teams to enhance security tools and improve platform efficacy.
- Conduct periodic quality assurance checks on alertsespecially during platform updates or vendor API changesto maintain actionable fidelity.
- Design write and translate threat detection content across tools including but not limited to Splunk Microsoft Sentinel Devo Microsoft 365 Defender Palo Alto Cortex XDR CrowdStrike and SentinelOne.
- Lead internal knowledge-sharing sessions and mentor junior team members to foster a culture of collaboration and continuous learning.
- Operate effectively in a global agile team spanning multiple time zones balancing independence with team collaboration.
What You Will Bring
Required Qualifications:
- 5 years of experience in cybersecurity with a focus on threat detection security engineering or incident investigation.
- Hands-on experience with multiple EDR and SIEM tools such as Splunk Microsoft Sentinel Devo Microsoft 365 Defender Palo Alto Cortex XDR CrowdStrike SentinelOne Carbon Black or Cylance.
- Proficiency in one or more query languages (e.g. SPL KQL Sumo Logic).
- Experience building use cases for SIEM platforms and a solid grasp of log source types including firewalls operating systems and proxies.
- Strong verbal and written communication skills with the ability to convey complex concepts to both technical and non-technical stakeholders.
- Ability to work independently while effectively collaborating with distributed teams.
- Familiarity with tools like GitHub Jira and Confluence.
Preferred Qualifications:
- Professional certifications such as OSCP CISSP or equivalent.
- Experience creating parsers or custom log processing logic.
- Exposure to agile development environments and DevSecOps culture.
What Its 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.
What does our Compensation and Benefits package entail
- Competitive salary
- Statuary PTO (Paid Time Off) policy
- Depending on the role you may work in the office remotely or adopt a hybrid work model.
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 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 whats 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
Its 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.
How to Apply:
Interested candidates are invited to visit our career site and apply for the position:
Employment Type
Full-Time
Department / Functional Area
Key Skills
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