Operator Profile
Active
Network Engineer ·
Software Developer
Software Developer
Principal Infrastructure Engineer · Open Source
Two decades building enterprise and service provider networks — and writing the software that operates them. Python, Go, C#, and JavaScript — four ecosystems, one engineering discipline.
Application Languages — 312 Repos
Markup Excluded
Python 76.0%
JavaScript 19.2%
Go 2.2%
C# 0.8%
Robot 0.5%
Other
Engineering Methodology
How This Portfolio Was Built
Every networking tool in this portfolio was validated against real multi-vendor hardware — Arista, Cisco, and Juniper gear running real routing tables and real failure scenarios in a dedicated lab environment. Nothing here was tested first against mocked data or simulations. Once thoroughly validated, these tools are used to solve real operational problems.
The development process follows four years of formal QA engineering — Robot Framework, pyATS, GitLab CI test suites against datacenter hardware at Charter. That discipline carries forward: architecture and design intent are defined upfront, implementation is systematic, and validation is continuous against environments where a bad parse or a missed edge case has operational consequences. These tools work because they were tested where failure matters.
HARDWARE-VALIDATED
MULTI-VENDOR
QA-DRIVEN DEVELOPMENT
Technical Deep Dives
Open Source Projects
Organized around the network lifecycle: Day 0 is discovery, Day 1 is inventory and provisioning, Day 2 is operational validation.
Secure Cartography
SSH-based network discovery that interrogates devices via CDP/LLDP to automate topology documentation and diagram generation. Multi-vendor support across Cisco, Arista, Juniper.
VelocityCMDB
Tactical, portable network CMDB with automated discovery, change detection, and operational intelligence. Flask/SQLite, pip-installable; validated across 357 devices and 53 sites. The DCIM lessons here fed directly into Netlapse's self-seeding inventory.
Netlapse · Network State Time-Lapse
v0.1.0 · GPLv3 · Arista · Juniper · Cisco · NX-OS · Oxidized-compatible
An Oxidized replacement that captures any CLI output — configs, ARP, BGP state, routing and interface tables — parses each into structured JSON, versions both the raw text and the parsed records, and answers the one question that matters at 2 AM: what changed? Not a wall of red and green — semantic diffs: "peer 10.0.0.1 went Established → Idle, prefix count 4200 → 0," "Gi0/3 MTU 9000 → 1500." Point LibreNMS at it unchanged; it speaks the Oxidized API.
What makes it different — the parser picks the template: tfsm-fire scores a 1,276-template library spanning 15+ vendor families against the actual shape of each capture and auto-selects the best match, so there's no per-command template mapping to maintain. One Search takes a single token — IP, MAC, ASN, hostname, serial — and returns every reference across the fleet, octet-anchored and vendor-format-aware, grouped by what it means. Self-seeding from a Secure Cartography map; no NetBox required.
What makes it different — the parser picks the template: tfsm-fire scores a 1,276-template library spanning 15+ vendor families against the actual shape of each capture and auto-selects the best match, so there's no per-command template mapping to maintain. One Search takes a single token — IP, MAC, ASN, hostname, serial — and returns every reference across the fleet, octet-anchored and vendor-format-aware, grouped by what it means. Self-seeding from a Secure Cartography map; no NetBox required.
fibtrace · Forwarding-Graph Analysis
v0.4.0 · MIT · Arista · Juniper · Cisco · Multi-vendor FIB
Visual forwarding-graph analysis for ECMP networks. Collects the FIB from each hop and renders every path a packet can take from source to destination — every ECMP branch, every convergence point, every terminal node — as an interactive graph. Multi-vendor. No agents, no controllers, just SSH and a browser.
What makes it different —
What makes it different —
fibtrace.diff: load a pre-change JSON, load a post-change JSON, see quantified impairment metrics — paths, edges, ECMP width, churn — with a CRITICAL / WARN / OK triage band at the top. Hover any listed path and it renders on both graphs simultaneously — you're not mentally diffing two pictures, the tool is doing it for you. Export JSON for programmatic use, SVG/PNG for MOP artifacts and IR write-ups. Change validation you can hand to a reviewer.nterm-ng
A network-aware SSH terminal that understands what it sees. Sniffer/gutter/parse chain architecture with vault integration and real-time telemetry.
NetHUDs · Network Device HUD
First release 2026 · MIT · Arista · Juniper · Cisco IOS · Linux
Real-time telemetry dashboard for any device with SSH access — no agents, no SNMP infrastructure, no vendor lock-in. One SSH session, one WebSocket, one HTML page, plus an embedded terminal so you never leave the glass. Built for the 90-second "what is this box actually doing right now" view that incident response demands.
What makes it different: the Linux collector probes the host on first connect and only runs collectors whose capability gates are satisfied — same HUD renders different panels for a Cumulus switch, an Ubuntu server, an Alpine container, or a Proxmox hypervisor. Any system that can produce a URL (Grafana, NetBox, PagerDuty, Slack) can deep-link into a live session.
What makes it different: the Linux collector probes the host on first connect and only runs collectors whose capability gates are satisfied — same HUD renders different panels for a Cumulus switch, an Ubuntu server, an Alpine container, or a Proxmox hypervisor. Any system that can produce a URL (Grafana, NetBox, PagerDuty, Slack) can deep-link into a live session.
TetherSSH
v0.4.2 · SSH · Telnet · Serial · Fyne Apps Showcase
Go terminal on Fyne 2 + gopyte that reaches gear three ways through one tabbed emulator: SSH, telnet, and local serial console (USB adapters and console servers, 9600 8N1, RFC 854 negotiation handled in-backend). Every transport is the same
TerminalBackend, so scrollback, selection, theming, and logging are identical across all three. Auto-reconnect on input preserves the tab and its scrollback; an anti-idle keystroke defeats device-side exec-timeout that TCP keepalives don't reset. A data-driven theme registry loads YAML themes from a directory at startup — a 30-theme pack (Dracula, Nord, Gruvbox, Tokyo Night, CRT) ships in the repo, each carrying its own 16-color ANSI palette. The author's daily driver.RetroTerm.NET
Retro DOS-inspired terminal in C#/.NET. Modern SSH connectivity wrapped in classic aesthetics.
VelociTerm
Web-based SSH gateway with WebSocket terminal sessions. Enterprise jump host with advanced session filtering.
CoolPyTerm
Hardware-accelerated SSH terminal with authentic CRT effects. PyQt6 + OpenGL with phosphor glow and scan lines.
nterm-qt
Themeable SSH terminal widget for PyQt6 with enterprise features. Embeddable component for building network tools.
gsshpass
Go SSH utility for automating commands. Designed for scripted workflows and older equipment compatibility.
tfsmjs
Re-implementation of Google's TextFSM state machine in native JavaScript — not a wrapper. Full template compatibility, runs in Node.js and browser. Often faster than the Python original.
Personal Projects
Built because problems exist, not because a job required it.
Cross-platform speech-to-text optimized for technical dictation.
Audiobook generator from EPUB using Kokoro speech synthesis.
Teleprompter-style song display for musicians with chord charts.
Whiteboard built with PyQt6 + QWebEngine. Zero CDN, fully offline.
Archive
20 Additional PyPI Packages · 2023 — 2025
Earlier experiments shipped across multiple ecosystems: Tkinter and PyQt6 SSH terminals (uglypty, uglierpty, securetkterminal, tkwinterm, multisshift, pyRetroTerm, TerminalTelemetry); TTP template tooling (ttpbuilder, ttp-assistant); network automation frameworks (pysimplenet, pysshpass); editor widgets built on QScintilla and Ace.js (pyeasyedit, sshifted); developer utilities (uglygrep, pymerdoc); SNMP discovery tools (velocitymaps, velocitycollector, tfsm-fire); and a PyQt6 media batch converter (mkv2mp4ui).
COMPLETE CATALOG:
pypi.org/user/scottpeterman
Mission Timeline
Cisco Certified Instructor · 4 Years
Principal Infrastructure Engineer
Datacenter and peering infrastructure on Arista and Juniper. Circuit turn-ups, PNI implementations.
BGP peer migrations — pre-flight validation, state auditing, cutover execution.
Principal Infrastructure Engineer
Enterprise network: 600+ retail locations, DCs, corporate sites across Cisco, Aruba, Palo Alto.
Device state collection platform (Flask/FastAPI, MySQL) for auditing and compliance.
Principal Engineer — Datacenter QA Network Automation
Built network test automation from the ground up in Robot Framework and pyATS — Python test suites running against real Arista and Cisco datacenter hardware, triggered from GitLab CI on every config and image change.
VxLAN/EVPN fabric validation, leaf-spine topology verification, control-plane and data-plane convergence testing.
Architect — IP Edge Engineering
IP Services architecture across a tier-1 backbone — MPLS L3VPN, VPLS, IPVPN, Converged VOIP/Data, Managed Internet.
Anycast DNS, syslog infrastructure, Netflow collection and analysis at carrier scale.
Architect III
Mobile carrier network architecture. MPLS core with OSPF-TE, VPLS, MVNO peering. Datacenter design — largest fabric ~300 switches.
System Capabilities
CCNP · CCIP · JNCIS
Platforms & Protocols
Cisco IOS/IOS-XE/NX-OS, Arista EOS, Juniper, Palo Alto, Aruba/HPE, F5, BGP, MPLS L3VPN, VPLS, EVPN/VXLAN, OSPF/ISIS, SD-WAN
Languages
Python, Go, C#/.NET, JavaScript/TypeScript, Shell, PyQt6, Fyne, FastAPI, Flask, Textual
Automation
Netmiko, NAPALM, TextFSM, Nornir, pyATS, Ansible, PySNMP, Paramiko
Infrastructure
Git/GitLab CI, Docker, Linux, MySQL, SQLite, Redis