Senior Network Engineer (Hybrid)

Chameleon Integrated Services•St. Louis, MO

20d•Hybrid

About The Position

We are a growing information technology company that offers its employees a culture of success, the chance to work on revolutionary federal IT infrastructure, and the opportunity to grow alongside cutting-edge technology that is reshaping the industry. We are seeking forward thinking candidates that have strong experience in operational support and can help take to the next level in a pro-active stance. Chameleon Integrated Services has expertise in operations management, quality systems, data operations and cybersecurity. We secure some of the most sensitive data for the Department of Defense and for other U.S. federal government agencies. We are known for the great care we take with clients and employees, and we believe in promoting from within. Chameleon Integrated Services is currently looking for a Senior Network Engineer to support one of our local clients in St. Louis city. Overview: We are seeking a Senior Network Engineer Consultant to provide near-term support following the departure of key networking personnel, including the senior network engineer and day-to-day network manager. The consultant will assess the current network environment, evaluate operational readiness and security posture, improve and/or create missing documentation, and develop a practical roadmap for improvements and modernization. This engagement may begin as a part-time consulting assignment and may expand in scope and duration depending on the individual’s performance, the client's needs, and the recommendations produced during the assessment.

Requirements

8+ years of senior-level network engineering experience (or equivalent)
Proven expertise with:
Routing and switching (enterprise networks)
Firewall administration and policy design
Network segmentation best practices
WAN connectivity and site-to-site connectivity
Wireless networking in enterprise environments
Strong documentation discipline (diagrams, inventories, runbooks)
Experience assessing environments with limited documentation and stabilizing operations
Ability to communicate clearly with both technical staff and leadership
Comfortable operating independently and driving work with minimal oversight

Nice To Haves

Public sector / municipality / government IT experience
Exposure to Zero Trust or identity-based network access concepts
Experience with any of the following (depending on City stack):
Cisco, Aruba, Juniper, Fortinet, Palo Alto, Meraki
SolarWinds, PRTG, LogicMonitor, ThousandEyes (or similar)
Microsoft environments (M365/Azure) and cloud connectivity patterns
Familiarity with ITIL, change control, and structured service operation

Responsibilities

Phase 1 – Discovery & Assessment (Initial 2–4 weeks)
The consultant will perform discovery, interviews, and technical validation to establish a clear understanding of the City’s current networking environment.
Activities may include:
Stakeholder interviews (IT leadership, security team, help desk, application owners, vendors)
Review of existing network diagrams, inventories, contracts, and monitoring tools
Assessment of network core/distribution/access architecture and WAN connectivity
Review of routing, switching, VLANs, and IP addressing strategy
Firewall posture review (rulebase structure, segmentation approach, remote access/VPN)
Wireless architecture review (coverage, authentication, controller configuration, guest access)
Review of monitoring, alerting, and network performance visibility
Review of configuration backup methods and change control practices
Identification of single points of failure and operational “tribal knowledge” dependencies
Deliverables (Phase 1):
Current-State Assessment Summary (strengths, gaps, immediate risks)
Initial Findings Briefing to IT leadership
Prioritized “Quick Wins” list (30-day action items)
Phase 2 – Documentation & Operational Readiness (Weeks 3–6, overlaps with Phase 1/3 as needed)
The consultant will build or improve documentation to ensure the City can run and support the network with fewer single-person dependencies.
Documentation deliverables may include:
High-level network topology diagram(s)
Site connectivity / WAN overview diagram(s)
VLAN / subnet / IP schema documentation
Firewall and segmentation overview (including remote access model)
Wireless overview (SSIDs, authentication, access policies)
Hardware inventory (switches, routers, firewalls, controllers) including OS/firmware versions where available
Circuit inventory (provider, bandwidth, purpose, cost if available, renewal dates)
Network administration runbook (standard tasks, access procedures, escalation procedures)
Recommended folder structure and standards for ongoing documentation maintenance
Phase 3 – Recommendations & Roadmap (Weeks 5–8)
The consultant will provide a realistic roadmap that balances security, stability, cost, and staffing.
Deliverables (Phase 3):
Prioritized Recommendations Matrix (by risk reduction, cost, complexity, effort)
12–24 Month Network Roadmap including sequencing and dependencies
Modernization guidance (architecture direction, lifecycle replacement, monitoring improvements)
Budgetary ROM estimates where possible (not formal quotes)
Leadership Readout (slide deck or summary presentation)
Phase 4 – Optional Ongoing Support (Month 2+ as needed)
Based on findings and City priorities, the consultant may continue in a part-time or expanded role to execute improvements, provide operational continuity, support vendor engagements, and help transition to permanent staffing.
Examples of ongoing tasks:
Implementing approved network improvements and remediation actions
Assisting with firewall policy clean-up and segmentation enhancements
Supporting wireless improvements and network performance tuning
Participating in change management meetings and advising leadership
Vendor coordination and technical evaluation support
Mentoring junior staff or assisting with onboarding a replacement network manager