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Senior Network Security Engineer

Requisition Number:  40429

Trevose, PA, US

Overall Purpose of the Role

International SOS is looking for a talented Sr. Network Security Engineer to help secure, design, operate, and maintain its IT network and security infrastructure for a key government contract. The ideal candidate would have a passion for solving technical problems and a drive for continually assessing and improving the technical environment in which they operate.

Key Responsibilities

•    Maintains data network hardware and systems including Azure and Cisco on-premise networks.
•    Investigates and resolves network and hardware issues of significance; researches, analyses, isolates and resolves errors.
•    Assesses and evaluates current and future systems
•    Monitor the IPS system for network intrusions and respond to incidents
•    Ensure IPS system and signatures are kept up-to-date.
•    Design networks on-premises or in the Azure government cloud as described in the project requirements and in line with architectural principles.
•    Develop and monitor key network metrics for input into IT reviews/reporting and monitoring.
•    Implement VPN and firewall rule, web filtering changes.
•    Perform hardware and software upgrades of network infrastructure like Cisco switches, Checkpoint firewalls, F5 Load balancers.

Required Qualifications

Required Skills and Knowledge (Brief description of technical knowledge or skills needed to perform the job)
•    Cisco Nexus and Catalyst Switches
•    Checkpoint Firewalls and Intrusion Prevention
•    F5 Load Balancers
•    Microsoft Azure Networking (Virtual networks, Routing, Subnets, Express Route, VPN, Network Security Groups)
•    Networking Protocols/Concepts (Routing, VLAN, Subnetting, Load balancing, TCP/IP, DNS, HTTP, TLS, SSH)
•    Script Experience a plus - PowerShell, Python, Bash, or similar


Required Competencies (Critical behaviours necessary to successfully perform the job)
•    Goal/results focused.
•    Strong ability to analyse and solve problems.
•    Self-starter.
•    Available to manage multiple competing demands.
•    Comfortable with ambiguity.


Required Work Experience (Brief description of the job-related experience needed to perform the job)
•    5+ Experience designing, building, and operating networks
•    5+ Years Checkpoint Security
•    5+ Years Cisco networking
•    10+ Years in IT


Required Qualifications (Brief description of the educational background needed to perform the job)
•    Bachelor’s degree in Information Technology, Information Security, or equivalent 4 years additional experience in network security engineering.
•    Cisco Certified Network Associate 
•    Azure Network Engineer Associate preferred 
•    This position does require a US Citizen who can obtain Tier 3/ Level II IT Security Clearance (previously referred to as ADP II Clearance) after being offered a position and maintaining clearance after starting with International SOS.


Required Languages (Brief description of the language skills needed to perform the job)
•    English
•    Any second language preferred.


Travel / Rotation Requirements (Brief description of any travel or rotation requirements)
•    Not Required
•    On-call/after-hours support required as needed. 


International SOS Government Services, Inc. requires all prospective employees to be fully vaccinated against COVID- 19, where allowed by law.


International SOS is an equal opportunity employer and does not discriminate against employees or job applicants on the basis of race, color, religion, gender, sexual orientation, gender identity, national origin, age, disability, genetic information, marital status, amnesty or status as a covered veteran in accordance with applicable federal, state and local laws.