Summary
Overview
Work History
Education
Skills
Certification
Timeline
Generic

Sean Marsteller

Spearfish

Summary

Results-driven Network Services Technician with extensive experience in supporting enterprise and commercial networking, fiber optic infrastructure, VoIP, Direct Internet Access (DIA), and broadband service delivery. Expertise includes Tier 2 technical support, network provisioning, incident response, root cause analysis, and troubleshooting complex Internet, voice, and fiber connectivity issues through collaboration with Network Operations Centers (NOC), engineering teams, field technicians, vendors, and customer IT departments. Proficient in configuring and supporting TCP/IP networks, customer-premises equipment (CPE), hosted voice platforms, fiber optic systems, and commercial network infrastructure while adeptly resolving critical service outages and performing preventative maintenance in fast-paced environments. A strong technical foundation from the U.S. Navy Nuclear Propulsion Program enhances the ability to quickly learn new technologies and deliver reliable solutions with a steadfast commitment to customer satisfaction.

Overview

1
1
Certification
15
15
years of professional experience

Work History

Network Services Tech I

Bluepeak
10.2025 - Current

Technical Skills

As a Network Services Tech I, I am responsible for configuring services and equipment for different levels of business internet and voip services, from CMTS to DIA internet and POTS lines to SIP trucks. I also provide advanced level support for other teams in order to effectively and efficiently troubleshoot and restore customer services.

Below is a list of my responsibilities and Skills included with this job:

Professional Experience

  • Provisioned, configured, and licensed commercial network and customer-premises equipment (CPE) supporting Internet, VoIP, fiber, LTE/DSL, FTTH, telephony, and video services.
  • Installed and configured Direct Internet Access (DIA) services, including static IP assignments for commercial customers.
  • Provided Tier 2 technical support for network operations, collaborating with Network Operations Center (NOC), Network Engineering, field technicians, vendors, and customers to troubleshoot service interruptions and complex network issues.
  • Monitored network performance using network management and monitoring tools, proactively identifying, escalating, and resolving service incidents to maximize uptime and reliability.
  • Diagnosed and resolved Internet, VoIP, telephony, and fiber service issues across enterprise and residential environments.
  • Supported voice platforms including hosted VoIP services and assisted with troubleshooting telephony and broadband connectivity problems.
  • Coordinated incident response during network outages, documenting issues through ticketing systems and driving timely resolution across cross-functional teams.
  • Performed root cause analysis on recurring network incidents and implemented corrective actions to improve long-term network stability.
  • Executed preventative maintenance, firmware upgrades, security patching, and health audits on network infrastructure and customer equipment.
  • Assisted with customer equipment validation and broadband testing to ensure compliance with federal program requirements and service quality standards.
  • Maintained accurate technical documentation, process procedures, knowledge base articles, and operational reports to improve team efficiency.
  • Supported mission-critical network operations through daily system checks and routine maintenance tasks.
  • Communicated effectively with internal teams, vendors, and customers to coordinate issue resolution and provide technical updates.
  • Worked independently in a fast-paced operations environment while managing multiple priorities and participating in an on-call Tier 2 support rotation.
  • TCP/IP Networking
  • DNS, Ping, Traceroute, NSLookup
  • Fiber Optic Networks
  • VoIP & Hosted Voice
  • Network Monitoring & Incident Management
  • Network Provisioning & Configuration
  • CPE Deployment & Support
  • Direct Internet Access (DIA)
  • Static IP Configuration
  • Network Troubleshooting
  • Root Cause Analysis
  • Ticketing Systems
  • Firmware & Security Patch Management
  • Cross-Functional Collaboration
  • Technical Documentation

Installation and Repair Technician II

Bluepeak
08.2024 - 10.2025
  • As an Installation and Repair Technician II, I provide reliable and high-quality internet and hosted voice phone services to commercial clients, directly contributing to Bluepeak’s commitment to ensuring business continuity and operational efficiency.
  • My key responsibilities include:
  • Delivering Seamless Commercial Internet and Voice Deployments: Expertly install and configure internet and hosted voice phone equipment in commercial locations, ensuring optimal performance.
  • Efficient Business-Critical Infrastructure Deployment: Proficiently route and connect lines from street-side infrastructure to commercial demarcation points (DMARKs), utilizing both cable and fiber optic technologies to support critical business data, communications, and voice services.
  • Client-Centric Solutions: Customize installation setups to meet specific commercial needs and fostering positive client relationships and minimizing operational disruptions.
  • Rapid Troubleshooting and Resolution for Business Continuity: Diagnose and resolve a wide range of internet and hosted voice phone system connectivity issues, including signal level discrepancies, high-speed data (HSD) interruptions, and call quality degradation, minimizing business downtime and ensuring continuous operations.
  • Proactive Infrastructure Maintenance for Business Reliability: Identify and report maintenance issues within the cable plant and hosted voice infrastructure, contributing to the ongoing improvement of network reliability and minimizing potential disruptions to commercial clients.
  • Hosted Voice System Installation & Configuration: Install and configure hosted voice phone systems according to client specifications, including equipment setup, line provisioning, and initial system configuration.
  • User Training and Support for Hosted Voice Systems: Provide on-site training and support to end-users on the operation of hosted voice phone systems, ensuring a smooth transition and maximizing system utilization.
  • Operational Support for Business-Critical Services: Participate in an on-call rotation, ensuring rapid response to urgent client issues and supporting consistent availability of business-critical internet and voice services.
  • Versatile Environment Proficiency: Experienced in working with both aerial and underground facilities, enabling adaptability across diverse commercial installation environments.
  • Direct Internet Access (DIA) Expertise:
  • I possess specialized expertise in the installation, termination, and repair of Direct Internet Access (DIA) services for businesses, ensuring reliable and high-bandwidth internet connectivity. My responsibilities include:
  • Fiber Termination and Splicing: Proficiently terminate and splice single-mode fiber optic cables, adhering to industry best practices and ensuring low-loss.
  • Collaboration with Customer IT Teams: Work closely with customer IT personnel to seamlessly integrate DIA services into their existing network infrastructure, providing technical guidance and ensuring a smooth transition.
  • Troubleshooting and Resolution of DIA Connectivity Issues: Diagnose and resolve complex DIA connectivity issues, utilizing advanced troubleshooting techniques and diagnostic tools to identify and resolve network problems efficiently.
  • Documentation and Compliance: Maintain accurate records of DIA installations, adhering to regulatory requirements and ensuring compliance with industry standards.

Installation and Repair Technician I

Bluepeak
10.2023 - 08.2024
  • As an Installation and Repair Technician I, I specialize in providing top-tier internet installation services to residential customers. My primary responsibilities include:
  • Expertly installing internet equipment in customers' homes, ensuring optimal connectivity and performance.
  • Proficiently running lines from the pedestal at the street to the demarcation point (DMARK) within the customer's residence, employing both cable and fiber internet technologies.
  • Customizing installations to meet customers' preferences, including strategically placing wall plates for equipment convenience.
  • Conducting troubleshooting and repair services for various issues, such as signal level discrepancies, intermittent high-speed data (HSD), and phone line malfunctions.
  • Assisting customers with their audio and visual equipment setups whenever possible, demonstrating a commitment to comprehensive technical support.
  • Participating in an on-call rotation to promptly address urgent customer issues outside of regular business hours.
  • Diagnosing and submitting maintenance issues with our cable plant, ensuring the continuous improvement of infrastructure reliability and performance.
  • Trained in handling and splicing optical fiber for internet installations, ensuring expertise in the latest technology advancements.
  • Additionally, I possess extensive experience in working with both aerial and underground facilities, ensuring thorough expertise across diverse installation environments.

US Navy Electrician's Mate Nuclear

U.S. Navy
04.2019 - 02.2022
  • Education:
  • Completed 6-month Nuclear Field A School with a 3.2 GPA, including coursework in AC/DC theory, motor and generator mechanics and theory, and electronic fundamentals.
  • Completed 6-month Nuclear Power School (NPS) with a 3.5 GPA, including coursework in reactor physics, chemistry, thermodynamics, heat transfer fluid flow, radiological science and safety, and mechanical theory and laws.
  • Completed 6-month Nuclear Power Training Unit (NPTU), where I learned to operate the engine room of a Moored Training Ship (MTS) as a team with fellow students under instructor supervision. I learned how to operate the plant as a team and how to react to casualties in a timely manner in accordance with casualty procedures in a controlled environment. I was also taught the importance of safety in an industrial setting.
  • Experience:
  • Operated and maintained electrical equipment onboard a 688i nuclear submarine for the US Navy. This included in-depth maintenance on AC and DC machines, motor generators, turbine generators, motor controllers, and switchboards.
  • Worked as part of a team in the Engine Room, responsible for starting up and shutting down the Engine Room in accordance with operating procedures, operating the plant to meet mission and operational needs, and reacting as a team to casualties and drills.

CNC Machine Operator

Liberty Fence
05.2011 - 03.2019
  • Experience:
  • Operated a CNC Router machine to make PVC posts and rails for various fence styles and built gates for required jobs.
  • Assisted crews in the field to complete jobs and covered for absent co-workers as needed.
  • Operated heavy equipment such as forklifts, augers, and bobcats, and drove large vehicles.
  • Operated the material yard, including loading trucks for the next day's jobs.

Education

High school diploma -

Edwardsville High School
Edwardsville, IL
05-2018

Skills

  • Low voltage
  • Military Experience
  • CNC
  • Diesel engine repair
  • Electric Plant Operations
  • Driving
  • Schematics
  • Automotive diagnostics
  • Blueprint reading
  • Troubleshooting
  • Delivery driver experience
  • Equipment Repair
  • High voltage
  • Maintenance
  • Team Work
  • Customer service
  • Mechanical Knowledge
  • Electrical experience
  • Network troubleshooting
  • IP addressing
  • Network configuration
  • Wireless networking
  • Routing protocols
  • Network security
  • VoIP systems
  • Switching technologies
  • VLAN management
  • Network documentation
  • Network monitoring

Certification

Secret Clearance

Timeline

Network Services Tech I

Bluepeak
10.2025 - Current

Installation and Repair Technician II

Bluepeak
08.2024 - 10.2025

Installation and Repair Technician I

Bluepeak
10.2023 - 08.2024

US Navy Electrician's Mate Nuclear

U.S. Navy
04.2019 - 02.2022

CNC Machine Operator

Liberty Fence
05.2011 - 03.2019

High school diploma -

Edwardsville High School
Sean Marsteller