Network Engineer III

JSI

$95K — $115K *
Telecommunications & Hardware
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in Engineering, Computer Science, IT, or similar field or equivalent experience.
  • Professional-level vendor certifications such as Calix Certified Expert, CCNP, or JNCIP required.
  • 5-8 years of network engineering experience with a focus on fiber access architecture.
  • Extensive experience with high-capacity PON platforms and core edge network integration.
  • Proven ability to manage complex engineering projects and client relationships.

Responsibilities

  • Maintain expertise in fiber access architectures including GPON and advanced PON technologies.
  • Architect large-scale PON access networks with multi-vendor integration.
  • Lead evaluations and vendor selection for client RFPs regarding Optical Line Terminals.
  • Review and approve High-Level Design documents and network migration strategies.
  • Mentor junior network engineers in technical standards and deliverable quality.
  • Provide expert advisory and troubleshooting for complex client environments.

Benefits

  • Comprehensive benefits package including medical, dental, and vision.
  • Generous PTO and wellness opportunities.
  • Ongoing professional development and educational opportunities.
Full Job Description
Network Engineer III

Department: Broadband - Network Engineering Services

Employment Type: Full Time

Location: Charlotte, NC

Reporting To: Brian Whitaker

Description

JSI invites you to join our team as a Network Engineer III on our Broadband IP team in our Charlotte, NC office, where you'll play a critical role in advancing broadband and telecommunications initiatives that expand connectivity and drive digital inclusion-while advancing your career within a mission-driven, growth-focused organization.

Position Overview:
As a Network Engineer III on the BBIP you will have a Focus in Fiber Access. Building upon a strong generalist network engineering foundation across multi-vendor telecom domains, this senior-level engineer brings specialized subject-matter expertise in high-level fiber access architecture, platform evaluation, and advanced PON technologies to serve JSI's diverse client base.

Key Responsibilities
  • Maintain a solid generalist networking foundation while serving as a primary subject matter expert in fiber access architectures (GPON, XGS-PON, 25G/50G PON, Zero-Touch Provisioning).
  • Architect large-scale, multi-vendor PON access networks, ensuring seamless integration with core edge routing, IP/MPLS backbones, and optical transport layers.
  • Lead technical evaluations and platform selection of Optical Line Terminal (OLT) and Optical Network Terminal (ONT) vendors for client RFPs.
  • Review and approve complex High-Level Design (HLD) documents, network migration strategies, and technical specifications for client broadband projects.
  • Mentor Level I and Level II network engineers across technical engineering standards, general network troubleshooting, and client deliverable quality.
  • Provide expert-level advisory, cross-functional engineering support, and root-cause troubleshooting for complex multi-vendor client environments.


Skills, Knowledge and Expertise
  • Bachelor's degree in Engineering, Computer Science, IT, or a related field (or equivalent practical experience).
  • Professional-level vendor certifications (e.g., Calix Certified Expert, CCNP, JNCIP, or equivalent) required.
  • 5-8 years of experience in network engineering, with a strong focus in fiber access architecture and multi-vendor service provider integration.
  • Extensive experience with high-capacity PON platforms and core edge integration.
  • Demonstrated ability to manage complex engineering engagements and high-level client relationships.
  • Ability to translate complex technical architectures into actionable client recommendations.
  • Proficiency in technical writing and creating high-quality client-facing engineering deliverables (HLDs/LLDs).
  • Strong interpersonal skills for client meetings and vendor coordination.
  • Solid understanding of project budgets, timelines, and billable-hour environments.


Benefits
  • Competitive salary + performance-based bonuses.
  • Comprehensive benefits package (medical, dental, vision, 401(k)).
  • Generous PTO and wellness opportunities.
  • Ongoing professional development and educational opportunities.

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