Network Engineer I

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Billings, MT, USA
In-Office
71K-114K Annually
Senior level
Fintech • Payments • Financial Services
The Role
Designs, implements, maintains, and supports enterprise network and telecommunications infrastructure, including LAN/WAN, VoIP, firewalls, VPNs, wireless systems, and unified communications. Monitors performance, troubleshoots connectivity and carrier issues, executes upgrades, maintains security and documentation, supports disaster recovery, and participates in audits and projects. The role also provides technical escalation support, guides junior team members, and participates in an on-call rotation.
Summary Generated by Built In
**If you are a current FIB employee, please apply through the Career Worklet in the Employee Portal.

This position may be located at any of First Interstate Bank's offices in Colorado, Idaho, Iowa, Missouri, Montana, Nebraska, Oregon, South Dakota, Washington or Wyoming.
What’s Important to You
We know your career is just one aspect of a meaningful, complex, and demanding life. That’s why we designed our compensation and benefits package to provide employees and their families with as much choice as possible.

  • Generous Paid Time Off (PTO) in addition to paid federal holidays.
  • Student debt employer repayment program.
  • 401(k) retirement plan with a 6% match.
  • The health and happiness of the places we call home matter to us. Learn a little more about what we do for the communities we serve and why we want YOU to be a part of it.

We encourage you to apply. Reach for what you want and tell us why your work ethic and willingness to learn make you a natural fit for #TeamFirstInterstate.
SUMMARY
The Network Engineer I designs, implements, maintains, and supports hardware and software network infrastructure and communication systems to ensure optimal performance, security, and availability. This position is responsible for developing and maintaining highly available network architectures that align with business objectives and service level agreements (SLAs). The engineer monitors network and telecom platforms, troubleshoots issues, evaluates performance, and supports future network growth. Additionally, the position works within established change management policies to ensure awareness, approval, and successful implementation of changes to the network topology. Responsibilities also include maintaining system security, ensuring connectivity, and supporting carrier services, LANs, WANs, network segments, internet, and intranet systems.
ESSENTIAL DUTIES AND RESPONSIBILITIES

  • Designs and implements network solutions, including local area networks (LANs) and the Unified Communications environment.
  • Installs, configures, and maintains network and telecom equipment such as routers, switches, firewalls, VPNs, wireless systems, servers, and converged environments, including VoIP systems and related services such as PBX, SIP trunks, and voice gateways.
  • Monitors and optimizes network performance, identifies bottlenecks, performs upgrades, and ensures high levels of security and data protection.
  • Provides network support and resolves complex connectivity issues, including those involving carrier activities.
  • Troubleshoots network, voice, video, and connectivity issues, and resolves hardware and software problems efficiently.
  • Plans and executes network upgrades and expansions, ensuring minimal disruption to business operations.
  • Collaborates with IT and security teams to ensure the network is protected from cyber threats and vulnerabilities.
  • Develops and maintains network documentation, including diagrams, standard operating procedures, and configurations.
  • Conducts network capacity planning and recommends solutions for scalability and performance improvement.
  • Stays updated on industry best practices, emerging technologies, and security threats.
  • Ensures compliance with organizational policies and government regulations.
  • Works in a fast-paced environment with tight deadlines and changing priorities.
  • Administers and maintains the organization’s network infrastructure, unified communications, and associated applications.
  • Ensures Quality of Service (QoS) on the network to prioritize voice and video traffic, minimizing disruptions.
  • Implements disaster recovery and backup solutions to ensure high availability and business continuity; participates in DR testing and enterprise risk exercises.
  • Facilitates technical escalations.
  • Guides and supports less experienced team members.
  • Participates in an on-call rotation and is available for urgent troubleshooting as needed.
  • Participates in audit walkthroughs and adheres to ITGCs; assists with audit findings, response, and mitigation.
  • Owns, leads, and participates in PMO- and business unit-led projects.

QUALIFICATIONS
To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed below are representative of the knowledge, skill, and/or ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.
KNOWLEDGE, SKILLS AND ABILITIES

  • In-depth knowledge of network protocols (e.g., TCP/IP, BGP, OSPF, MPLS) and VoIP technologies such as SIP, H.323, and RTP protocols.
  • Familiarity with contact center technologies and integrations.
  • Understanding of Session Border Controllers (SBCs) and their role in securing VoIP and SIP traffic.
  • Hands-on experience with network hardware, telecom solutions, and related tools.
  • Basic understanding of network security principles and practices, including firewalls, VPNs, and intrusion detection/prevention systems (IDS/IPS).
  • Current technical experience relevant to VoIP infrastructure, including telephony capacity metrics, SIP and CTI messaging, and vendor support.
  • Ability to troubleshoot complex network and telecommunication issues and develop effective solutions.
  • Strong IT and technical knowledge in the areas of local and wide area networking, communications, and related hardware and software.
  • Knowledge of automation and scripting.
  • Ability to problem-solve and think critically.
  • Strong documentation and project management skills.
  • Excellent communication skills and the ability to work with cross-functional teams.

EDUCATION AND/OR EXPERIENCE

  • High School Diploma or General Education Degree (GED) required
  • Bachelor's Degree in Computer Science, Information Technology, or related field preferred
  • 4-6 years in IT related experience and/or equivalent combination of education and experience required and
  • Advanced knowledge and experience in the area of local and wide area networking, communications, and related hardware and software, specifically Ethernet and TCP/IP required
  • Experience with low voltage cabling, MDF, and IDF preferred and
  • Experience in Network & Telecommunication system administration preferred

LICENSES AND CERTIFICATIONS

  • CompTIA A+ Certification preferred

PHYSICAL DEMANDS AND WORKING ENVIRONMENT
The physical demands and work environment are representative of those that must be met or encountered to successfully perform the essential functions of the job. In compliance with the Americans with Disabilities Act, the company provides reasonable accommodation to qualified individuals with disabilities and encourages both prospective and current employees to discuss potential accommodations with the employer.

  • Dexterity of hands/fingers to operate computer keyboard and mouse - Frequently
  • Lifting - Occasionally (up to 50 lbs)
  • Sitting - Frequently
  • Standing - Occasionally
  • Noise Level - Moderate
  • Typical Work Hours - M-F (8-5)
  • Regular and Predictable Attendance - Required

**If you are a current FIB employee, please apply through the Career Worklet in the Employee Portal.

Skills Required

  • High school diploma or GED
  • 4-6 years of IT-related experience or equivalent combination of education and experience
  • Advanced knowledge and experience with local and wide area networking, communications, Ethernet, TCP/IP, and related hardware and software
  • In-depth knowledge of TCP/IP, BGP, OSPF, MPLS, VoIP, SIP, H.323, and RTP
  • Hands-on experience with network hardware, telecommunications solutions, and related tools
  • Ability to troubleshoot complex network and telecommunications issues
  • Strong IT knowledge of LAN/WAN networking, communications, and related hardware and software
  • Knowledge of automation and scripting
  • Strong documentation, project management, problem-solving, and communication skills
  • Bachelor's degree in Computer Science, Information Technology, or related field
  • Familiarity with contact center technologies and integrations
  • Understanding of Session Border Controllers
  • Experience with low-voltage cabling, MDF, and IDF
  • Experience administering network and telecommunications systems
  • CompTIA A+ certification

First Interstate Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about First Interstate and has not been reviewed or approved by First Interstate.

  • Retirement Support — A dollar-for-dollar 401(k) match and clear plan features indicate strong, reliable retirement benefits. Complementary financial programs such as student-debt assistance further bolster long-term savings support.
  • Parental & Family Support — Parental and caregiver leave alongside a childcare assistance program provide tangible support for families. These offerings are presented as core elements of the total package.
  • Leave & Time Off Breadth — Generous PTO, multiple paid holidays, and distinct leave buckets (e.g., jury duty, bereavement) point to broad time-off coverage. Accrual structures and the ability to take time off can vary by role, team, or location.

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The Company
HQ: Billings, MT
5,303 Employees
Year Founded: 1968

What We Do

First Interstate is a community bank that delivers best-in-class banking and Wealth Management services throughout Arizona, Colorado, Idaho, Iowa, Kansas, Minnesota, Missouri, Montana, Nebraska, North Dakota, Oregon, South Dakota, Washington, and Wyoming. Headquartered in Billings, Montana, First Interstate is driven by strong values, with a focus on supporting the communities we serve through the financial services we provide as well as through volunteerism and philanthropy

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