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Lexicon Resources LLC · Round Rock, TX

Sr. Global Network Architect & Systems Engineer (CCNP Level) - W2 ONSITE

seniorcontractPosted Aug 11
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Company Description Lexicon Resources LLC is an Atlanta, GA–based service and solutions provider with a strong track record supporting Fortune 1000 clients through high-quality technical project expertise. As a certified women-owned (WBE) and minority-owned (MBE) enterprise, the company is recognized by multiple national and regional organizations for its diversity, reliability, and performance as a government and commercial contractor. Lexicon Resources specializes in high-demand talent sourcing, using proven screening, skills testing, interviewing, and background verification processes to deliver customized, scalable, and flexible staffing solutions. The firm is deeply committed to intentional inclusion, employing technology-driven recruiting methodologies that reduce implicit bias and promote equal opportunity. Team members work with aspirational businesses seeking to drive meaningful, long-term change in both the professional world and the broader community.

Duration: 12+ months contract

- Preferring for local candidates only, as this is an onsite role in Austin, TX

- NO VISA candidates or NO sponsorships available or NO C2C - w2 contract

Key Responsibilities

Design, configure, and maintain Wireless Access Points and Wireless Controllers

Design, configure, and maintain enterprise network infrastructure, with a focus on Layer 2/Layer 3 switching technologies

Develop and implement network automation solutions to streamline provisioning, configuration, and troubleshooting

Manage and optimize network performance, availability, and security across data center and campus environments

Automate routine network operations using scripting and orchestration tools

Collaborate with cross-functional teams to support network integration and deployment efforts

Troubleshoot complex network issues and perform root cause analysis

Maintain up-to-date network documentation, diagrams, and operational procedures

Participate in change management, incident response, and continuous improvement initiatives

Technical Background: Deep experience with software architecture, API contract design, and data schema rules.

Prompt & Spec Engineering: Ability to write precise, unambiguous text instructions (PRDs) that Large Language Models (LLMs) can parse without "vibe coding".

Workflow Mastery: Experience breaking down complex applications into multi-agent systems (e.g., Coordinator, Implementor, and Verifier tasks).

Testing: Proficiency in automated verification criteria and mapping code back to core specs during pull requests.

Required Qualifications

Bachelor’s degree in Computer Science, Information Technology, or a related field (or equivalent experience)

8+ years of network engineering experience

Strong expertise in:

Layer 2/Layer 3 switching (VLANs, VRRP, MC-LAG, STP, VTP, PortChannel, and routing protocols such as OSPF/BGP)

Network design and troubleshooting in enterprise environments

Hands-on experience with network automation tools, such as:

Demonstrated proficiency in Python, Ansible, or similar scripting/automation frameworks

REST APIs and network programmability concepts

Familiarity with major networking platforms (e.g., Dell, Cisco, Arista, Juniper)

Solid understanding of TCP/IP, DNS, DHCP, and network security fundamentals

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