This role sits within Cognizant's strategic engagement with one of the world's foremost enterprise security and observability companies. You will work on complex enterprise SIEM environments, contributing directly to detection engineering and security platform operations at a global scale.
About the Role
We are seeking a Splunk Enterprise Security Engineer to investigate and resolve complex issues across our enterprise SIEM environment. This role requires deep hands-on expertise in Splunk ES, advanced SPL, and a strong security mindset to maintain detection accuracy, reduce false positives, and ensure platform reliability.
What You Will Do
- Investigate and resolve complex issues including correlation search failures, missing or delayed notable events, Risk-Based Alerting (RBA) anomalies, and data model acceleration issues
- Diagnose performance issues impacting dashboards, scheduled searches, and notable event generation
- Utilise advanced SPL to trace the full detection lifecycle: raw data ingestion → CIM normalisation → data models → correlation searches → notable events
- Optimise searches using tstats and data model acceleration to improve detection accuracy and efficiency
- Manage and optimise CIM compliance, data model acceleration, and summaries
- Ensure correct data mapping, field extraction, and normalisation
- Design, troubleshoot, and optimise correlation searches, risk rules, and scoring mechanisms
- Investigate and resolve Search Head Cluster issues including captain election problems, configuration sync failures, and knowledge bundle replication delays
- Monitor and tune scheduler performance to avoid skipped searches and prevent resource contention
What You Bring
- Strong hands-on Splunk Enterprise Security experience
- Experience in large-scale enterprise SIEM deployments
- Expertise in Advanced SPL, Data Model Acceleration, CIM, and correlation searches
- Knowledge of RBA, Search Head Clustering, tstats, and scheduler tuning
- Understanding of security frameworks and compliance standards
- Networking fundamentals (TCP/IP, DNS, HTTP/S)
Technical Skills Splunk ES · Advanced SPL · SHC · CIM · tstats · RBA · AWS/Azure/GCP · JIRA · Git
What we offer
- The chance to work with impact. Here, you’re empowered to bring your biggest thinking to help our company and clients improve everyday life.
- Ownership over your career. Stay at the top of your game through our award-winning learning and development ecosystem. And when your ambitions change or we offer new opportunities, we help you pivot by providing reskilling, on-the-job learning and guidance to find new roles that might be a better fit.
- The opportunity to thrive on a high caliber team with heart. We celebrate each other’s experiences and perspectives and promote a sense of belonging through our affinity groups and diversity and inclusion initiatives.
- A comprehensive total rewards package, including a competitive salary and a pension plan with matching contributions.
- Flexible health and financial benefits to support you and your eligible dependents—from day one.
- True work-life balance. Be at your best through paid time off, flexible work arrangements, volunteering opportunities, social events, and so much more.
About us
Cognizant (Nasdaq: CTSH) is an AI Builder and technology services provider, building the bridge between AI investment and enterprise value by building full-stack AI solutions for our clients. Our deep industry, process and engineering expertise enables us to build an organization’s unique context into technology systems that amplify human potential, realize tangible returns and keep global enterprises ahead in a fast-changing world. See how at www.cognizant.com or @cognizant.
Other employment-related information
Cognizant is an equal opportunity employer. Your application and candidacy will not be considered based on race, color, sex, religion, creed, sexual orientation, gender identity, national origin, disability, genetic information, pregnancy, veteran status or any other characteristic protected by federal, provincial or local laws.
If you have a disability that requires reasonable accommodation to search for a job opening or submit an application, please email [email protected] with your request and contact information.
Language requirements vary depending on roles, but we ask that all candidates have basic English proficiency for company-wide communications purposes. For roles based in Quebec, professional English proficiency is required, as you’ll deliver services to and collaborate with stakeholders outside the province who may not speak French.
