Contract Network Security Engineer - On-Call, Multi-Site

Intone Inc; Marlborough (MA); On-site; USD 90,000 - 120,000; Full time

Job summary

Intone Inc. in Marlborough, MA seeks a Network Security Engineer to support and maintain enterprise network infrastructure across multiple sites and data centers. This 6+ month contract requires participation in a 24x7 on-call rotation with travel up to 25%.

Responsibilities include managing firewalls, routing/switching, vulnerability assessments, centralized logging, and disaster recovery planning. The role emphasizes security best practices and cross-site coordination.

Qualifications

• Bachelor's degree in a related field or equivalent combination of education and experience
• 3+ years of experience in Network Engineering, Network Security, or Infrastructure Support
• Hands-on experience with firewalls, routers, and switches
• Knowledge of routing protocols and TCP/IP networking
• Experience with VLANs, DNS, DHCP, and SNMP
• Familiarity with VPN technologies
• Experience with network monitoring and logging tools
• Understanding of network security best practices
• Experience with vulnerability scanning and remediation
• Knowledge of backup and recovery processes
• Proficiency with Visio for documentation
• Strong troubleshooting and analytical skills
• Excellent written and verbal communication
• Ability to work independently and collaboratively
• Experience supporting teams across multiple time zones
• Comfort working in fast-paced environments with competing priorities

Responsibilities

• Manage enterprise firewalls, including rule creation, policy reviews, security hardening, and change management
• Configure, monitor, and troubleshoot routing and switching infrastructure
• Support multi-site network environments and remote locations
• Perform vulnerability assessments and network security scans
• Manage centralized logging, monitoring, and alerting systems
• Maintain security patching for firewalls, routers, switches, network appliances, and monitoring tools
• Administer application delivery and load-balancing platforms
• Provide support for remote sites and data centers, including "smart hands" support for network and infrastructure equipment
• Rack and stack network hardware
• Upgrade IOS on networking equipment
• Manage network backup and recovery processes
• Participate in disaster recovery activities
• Monitor system performance, availability, and capacity
• Investigate and resolve network or infrastructure outages
• Review system and application logs
• Troubleshoot hardware and software issues
• Work with vendors to resolve technical issues and support compliance initiatives
• Ensure compliance with NERC CIP standards
• Create and maintain network diagrams, topology maps, configuration documentation, and operational procedures using Visio

Skills

3+ years of experience in Network Eng/

Hands-on experience with firewalls,Rou

Routing protocols/TCP-IP networking

VLANs, DNS, DHCP, SNMP

VPN technologies

Network monitoring and logging tools

Network security best practices

Vulnerability scanning and remediation

Backup and recovery processes

Visio for documentation

Troubleshooting and analytical skills

Written and verbal communication

Independent and collaborative work

Multi-timezone support

Ability to thrive in fast-paced env.

Education

Bachelor's degree in a related field

Tools

Visio

Syslog/Monitoring tools

Job description

Intone Inc. in Marlborough, MA seeks a Network Security Engineer to support and maintain enterprise network infrastructure across multiple sites and data centers. This 6+ month contract requires participation in a 24x7 on-call rotation with travel up to 25%.

Responsibilities include managing firewalls, routing/switching, vulnerability assessments, centralized logging, and disaster recovery planning. The role emphasizes security best practices and cross-site coordination.