L3 Network Engineer

Job Summary We are looking for Senior Network Security Engineer with experience in designing, implementing, and managing enterprise-scale network security infrastructures across on-premises, cloud, and hybrid environments. Mandatory Skill-set Bachelor’s degree in IT/Computing or equivalent hands-on experience; Must have 10- 15 years of experience in to Network security infrastructure; Must have exposure to Firewalls (FortiGate Firewall, Cisco ASA, Check Point) VPNs, routing, switching, segmentation,IDS/IPS, WAF (e.g. F5 WAF) NAC systems; Strong knowledge of cloud security in AWS, Azure, or GCP (VPCs, Security Groups, NSGs); Automation: Basic scripting skills in Python and use of Ansible for security configuration; Expertise in enterprise firewalls (Cisco, Fortinet), Zero Trust Architecture (ZTA), and SASE; Experience in network segmentation (VLANs, VRFs) and micro-segmentation design; Familiar with SIEM tools such as Splunk or Microsoft Sentinel for security monitoring and analysis; Strong packet analysis and troubleshooting skills using Wireshark and tcpdump. Desired Skill-set Relevant certifications preferred: Fortinet, RSA, Tenable, Trend Micro, F5; Strong credentials such as CCNP/CCIE Security, PCNSE, CISSP (preferred); NAC: Cisco ISE or similar Network Access Control systems; Experience in change management process and method. Responsibilities Define and drive the enterprise network security strategy across on-premises, cloud, and hybrid environments; Lead L3/L4 incident response, root cause analysis, and remediation for critical network security issues; Design, deploy, and manage security infrastructure including NGFWs, IDS/IPS, VPNs, Load Balancers, and NAC solutions; Develop and enforce network security policies, standards, segmentation, and compliance controls; Architect secure cloud networking solutions across AWS and Azure, integrating cloud and on-premises environments; Develop, test, and maintain Disaster Recovery (DR) and Business Continuity (BCP) network security capabilities; Evaluate and implement emerging security technologies such as Zero Trust and SASE to enhance security posture; Produce high-quality HLD/LLD documentation and mentor engineering teams on security best practices and advanced troubleshooting; Serve as the highest escalation point for complex incidents, ensuring timely resolution within SLA commitments; Drive change management, operational excellence, automation initiatives, and continuous service improvement; Collaborate with cross-functional teams, stakeholders, and clients to deliver secure, scalable, and resilient network services. Should you be interested in this career opportunity, please send in your updated resume to apply@sciente.com at the earliest. When you apply, you voluntarily consent to the disclosure, collection and use of your personal data for employment/recruitment and related purposes in accordance with the SCIENTE Group Privacy Policy, a copy of which is published at SCIENTE’s website(https://www.sciente.com/privacy-policy). Confidentiality is assured, and only shortlisted candidates will be notified for interviews. EA Licence No. 07C5639