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JSI Tech Stack

Fiber network design and deployment services for broadband providers

Telecommunications Greenbelt, Maryland 501–1,000 employees Founded 1962 Privately Held

JSI designs and deploys fiber-to-the-home infrastructure for broadband providers across the United States. The tech stack is dominated by CAD, GIS, and network simulation tools (Cisco ASR/NCS, Juniper MX/EX, ArcGIS, MicroStation, AutoCAD) — typical of infrastructure engineering firms — paired with enterprise operations software (NetSuite, Microsoft 365). Project work centers on outside-plant fiber buildouts and permitting, while pain-point data reveals the real operational friction: environmental clearance, regulatory compliance, and grant-application processes are where deals stall.

Tech Stack 22 technologies

Core StackArcGIS AutoCAD NetSuite Linux Cisco ASR 9000 Cisco NCS Juniper MX Juniper EX MicroStation Microsoft Office Google Earth GIS Excel GPS DraftSight QGIS Microsoft Project Adobe Acrobat CAD Windows Microsoft 365 Word

What JSI Is Building

Challenges

  • Environmental permitting clearance
  • Digital inclusion
  • Expanding connectivity
  • Complex regulatory environments
  • Mitigating regulatory risk
  • Expanding broadband access
  • Regulatory filing challenges
  • Grant application environmental compliance
  • Environmental permitting for telecom
  • Securing permits for broadband deployment

Active Projects

  • Osp ftth network design and implementation
  • Osp ftth design project
  • Fiber optic cable permitting
  • Outside plant fttx build-outs
  • Fiber infrastructure buildout
  • Fiber-to-the-premise (fttp) projects
  • Osp fiber network design projects
  • Staking outside plant (osp) projects
  • Launch new client-facing lms
  • Shape client learning experience

Hiring Activity

Steady75 roles · 30 in 30d

Department

Engineering
54
Consulting
7
Legal
5
Construction
1
Design
1
Executive
1
Finance
1
Ops
1

Seniority

Senior
30
Mid
22
Junior
15
Manager
2
VP
2
C-Level
1
Director
1

Notable leadership hires: Chief Executive Officer

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About JSI

JSI is a national engineering and consulting firm specializing in broadband network infrastructure. Founded in 1962, the company works with telecom providers on fiber-to-the-home design, deployment, regulatory compliance, and 24/7 operational support. Based in Greenbelt, Maryland, JSI maintains a 501–1,000-person workforce structured around an engineering-heavy organization (54 roles) alongside consulting, legal, and construction teams. Current project momentum focuses on outside-plant fiber buildouts, network design, permitting workflows, and a new client-facing learning management system.

HeadquartersGreenbelt, Maryland
Company Size501–1,000 employees
Founded1962
Hiring MarketsUnited States

Frequently Asked Questions

What is JSI's tech stack?

JSI uses Cisco ASR 9000, Cisco NCS, Juniper MX/EX for network design; ArcGIS, MicroStation, AutoCAD for GIS and CAD work; and NetSuite for operations management, along with Microsoft 365 and Linux infrastructure.

Where is JSI headquartered?

JSI is headquartered in Greenbelt, Maryland, and hires exclusively in the United States.

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