Security Engineer

2 weeks ago

Tumkūr, India SHI Solutions India Pvt. Ltd. Full time

Role: Security Engineer – DNS Security (Immediate Joiner) Expertise Level – Level 2 Experience – 5-8 years Location: Bengaluru, India About the Role The design, deployment, tuning and operationalization of enterprise-grade DNS security using Cisco Umbrella, Infoblox DDI, and related tooling. Responsibilities - Design, deploy and manage Cisco Umbrella policies (DNS-layer protection, content filtering, secure proxy) across hybrid environments. - Administer Infoblox DDI (DNS/DHCP/IPAM) — zone management, DNSSEC, DHCP scopes, and IP address lifecycle. - Implement DNS security controls: RPZ, DNSSEC, response rate limiting, and sinkholing workflows. - Integrate DNS telemetry with SIEM/SOAR for detection, alerting and automated response. - Perform threat hunting and malware/ransomware detection using DNS query patterns and threat intelligence. - Triage and lead DNS-related security incidents — containment, root-cause analysis, remediation and post-incident reporting. - Tune and operate DNS resilience and availability: monitoring, capacity planning, and failover testing. - Manage change control for DDI changes — RFCs, peer reviews, and rollback procedures. - Conduct security assessments and configuration hardening for DNS servers, resolvers and forwarders. - Liaise with network, cloud and application teams to deploy DNS mitigations and ensure least-privilege DNS access. Qualifications - Bachelor’s degree in CS/IT/EE or equivalent; relevant certificationspreferred. Required Skills - 5+ years in network/security engineering with demonstrable DNS experience. - Hands-on experience with Cisco Umbrella and Infoblox (production deployments). - Strong DNS protocol knowledge (A/AAAA/CNAME/NS/SOA, DNSSEC, TSIG, recursion, EDNS). - Experience integrating DNS telemetry into SIEM (Splunk/QRadar/Elastic) and SOAR platforms. - Proficiency in scripting (Python, Bash) and REST API automation. - Comfortable with cloud-native DNS (Route53, Azure DNS, Cloud DNS) and hybrid architectures. Interested candidates can directly apply by sending their resume to rekha.srikumar@locuz.com

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