Senior Network Engineer

As a member of the company’s Information Technology team, the Sr. Network Engineer will be responsible for a variety of IP, telecom, and documentation support. Job duties will include leading network design updates and upgrades and leading any network architectural projects. The Sr. Network Engineer provides subject matter expertise, leads ongoing network support and maintenance, and serves as escalation, assistance, training support to other engineers.

Duties:

• Lead critical projects, design updates, and architectural projects while working well as part of a group and providing technical expertise. 
• Lead the design, grooming, upgrading, and architecture of network to improve network security, reliability and scalability.
• Lead the design and deployment of new technologies or upgrade existing capabilities as assigned.
• Lead the design and continuous monitoring and response to alarms for all network equipment using a variety of tools for incident handling and remediation.
• Improve network reliability and scalability.
• Design and deploy new datacenter build-outs, expansions, and hardware refresh projects.
• Review maintenance of network documentation to include diagrams, spreadsheets, databases, and processes documents.
• Perform audits and updates of devices for accuracy of device descriptions, port configurations, monitoring settings, etc.
• Manage internal IPv4 and IPv6 address database.
• Work on-call weekend and overnight rotation as needed cycled between the Systems, Network and Security teams.
• Provide day to day support on all network related request fulfillment, incident response, documentation, and follow-up.
• Provide 8 x 5 support of the IT telecom and network infrastructure environment (LAN, WAN, wireless, etc.).
• Enter changes in approved and scheduled maintenance windows (i.e. software upgrades, hardware replacement, migrations, etc.).
• Maintain network equipment inventory database (quantity, sparing, part numbers, serial numbers, etc.) on high value and critical components.

Requirements

Knowledge, Skills & Abilities:

• Ability to thrive in a hybrid work environment that consists of at least two days per week (including Tuesdays and Wednesdays for in-person team collaboration) in a downtown Denver office
• Must be able to work during normal business hours, and assist with changes as necessary during maintenance windows as scheduled for nights and weekends
• Occasional travel (10%) for onsite support, datacenter build-out/expansions, or for training as needed.
• Expert knowledge of switched network topologies including VLANs, trunking, spanning tree, port configuration, CDP, stacking, redundancy, networking architecture, etc.
• Expert knowledge of routed network topologies including OSPF/BGP, HSRP/VRRP, QoS.  (Cisco, etc.)
• Strong understanding of designing and implementing OSPF areas, BGP WAN networks, and other routing protocols using Cisco equipment
• Expert knowledge of troubleshooting and network tools such as ping, traceroute, telnet, nslookup, etc.
• Expert understanding of the OSI Reference Model
• Expert experience with network monitoring, management and secure authentication protocols and tools such as TACACS+/RADIUS. (Cisco ISE, ACS, etc.)
• Understanding of information security practices and trends.
• Strong attention to detail and organizational skills
• Problem solving and troubleshooting skills
• Strong written and verbal communications skills
• Understanding of copper and fiber cabling and cable management
• Proficient with the Microsoft Office Suite with emphasis in Excel and Visio
• Familiar with ISO 27001/2, SOC2, PCI, NIST, HIPPA, and Sarbanes-Oxley processes.
• A knack for grace under pressure and a sense of urgency that puts the customer first.
• Strong of monitoring/alerting methodologies and tools.  (Splunk, SolarWinds, Cacti, Scrutinizer, etc.)
• Experience with load balancing and tools (F5, etc.).
• Understanding of network security design concepts to include wireless security, intrusion prevention/detection, firewall architecture, SIEM, encryption, investigations, forensics, and incident management response to enable joint projects with the Information Security Team.

Education/Experience:

• Bachelor’s or trade school degree preferred or equivalent work experience
• At least 10+ years IT experience with at least 8+ years network background
• Professional certifications strongly preferred (CCNP Enterprise (R&S/Design), CCNP Wireless, SANS, ISC2, etc.)

Physical Demands:

The physical demands described here are representative of those that must be met by an employee to perform the job’s essential functions of this job successfully. Reasonable accommodations may be made to enable individuals with disabilities to perform essential functions.

While performing the job’s duties of this job, the employee is occasionally required to stand, walk, sit, use hands to handle or feel objects, reach with hands and arms, climb stairs, balance, stoop, kneel, talk, and hear. The employee must occasionally lift and/or move objects weighing up to 50 pounds. Specific vision abilities required by the job include close vision, distance vision, color vision, peripheral vision, depth perception, and the ability to adjust focus.

Compensation:

Compensation for this role includes a base salary between $$130,000 and 150,000 annually. This role is also eligible for an annual bonus and equity, based upon individual and company performance.

Posting Timeline: This position is expected to be open for applications through August 26, 2024

Benefits

Not only does CoreSite have a fun, team-focused work environment, but we also offer great benefits to all employees regularly scheduled to work more than 20 hours a week!

• First-day medical insurance through Cigna with generous premium cost coverage
• Dental insurance through Delta Dental
• Vision insurance through VSP
• Telemedicine through MDLive for Cigna
• Healthcare and dependent care flexible spending account (FSA) plans
• Health saving account (HSA) plans for employees participating in the High Deductible Health Plan
• Life, AD&D, short-term disability, and long-term disability insurance fully paid by the company
• Voluntary coverage benefits for supplemental life, critical illness, accident, and hospital insurance
• First-day eligibility for 401(k) savings plan through Fidelity, which includes an attractive matching company contribution
• Discretionary annual bonus and equity incentive plan
• Employee stock purchase plan (ESPP) with a 15 percent discount
• 16 days of paid time off (PTO)
• 11 paid company holidays and additional floating holidays
• School visitation and elder care paid time off
• Parental leave, adoption and surrogacy benefits, and family planning/fertility support
• Wellness reimbursement program & wellness incentive program
• Free parking or a company contribution toward a public transit pass
• Education reimbursement and student loan debt assistance program
• Employee assistance program, childcare resources, personal finance management support, and student loan debt assistance program
• Pet insurance
• Charitable matching program

Applicant Privacy Notice: CoreSite is committed to protecting the privacy and security of personal information submitted by applicants. The California Consumer Privacy Act (CCPA) requires us to provide you information about our personal information handling practices. As a result, we’re providing this Privacy Notice that describes how we collect, use, share, and update personal information from individuals who wish to be considered for employment with CoreSite. To read the Applicant Privacy Notice, please go to https://www.coresite.com/applicant-privacy-notice