Senior Network Engineer

Forward Slash Technology is a St. Louis-based Cyber Security, Information Technology, and Managed Services provider. 

We are seeking a Senior Network Engineer to join our St. Louis-based team. This is a client-facing role in which you will lead technical strategy and service delivery for a variety of SMB and enterprise clients. You'll design, implement, and secure complex IT infrastructures, mentor junior team members, and engage directly with clients to drive high-impact technology decisions. You’ll collaborate in a culture that values innovation, mentorship, and continuous learning.

• Environments supporting 50–400 endpoints


• Multi-site networks across 30+ client organizations


• Infrastructure SLAs maintained at or above 99.9% uptime

RESPONSIBILITIES

• Oversee daily, weekly, and monthly maintenance to ensure client systems remain efficient and secure


• Direct and implement high-level IT projects, collaborating with clients and team members to meet deliverables


• Develop and maintain project roadmaps, ensuring alignment with strategic client objectives


• Serve as a technical escalation point for advanced troubleshooting and complex problem-solving


• Conduct code reviews, solution design reviews, and participate in peer mentoring


• Provide technical leadership and mentorship to mid-level and junior engineers

• Ensure client SLAs are met or exceeded through proactive monitoring and performance tuning


• Lead discovery and architectural design sessions with new clients


• Standardize documentation and technical procedures for internal and external use

QUALIFICATIONS

Technical Expertise

• Networking & Infrastructure: 10+ years supporting IT networks in MSP environments. Proficient in Layer 2/3 switching, routing (OSPF, BGP), DNS, DHCP, and designing high-availability architectures with failover and disaster recovery


• Firewall & Security Appliances: Extensive experience with Barracuda, Fortinet, SonicWall, Meraki, and related firewall deployments


• Microsoft Ecosystem: Advanced expertise in Active Directory, Exchange (including O365), and Windows Server environments


• Virtualization & Cloud: Skilled in VMware, Hyper-V, and hybrid infrastructure solutions using Azure, Quest Rapid Recovery, and Barracuda tools


• VoIP & Communications: Deploy and manage VoIP systems (Mitel, Avaya), following industry best practices for network integration


• Server & Platform Administration: Proficient in managing SQL Server, Unix/Linux systems, IPSEC/SSL VPNs, and web hosting services


• Spam & Content Filtering: Experience implementing Barracuda web and spam filtering solutions

Security & Compliance Expertise

• Deep understanding of security frameworks such as NIST, ISO 27001, and CIS Controls


• Experience implementing and managing IDPS, NAC, WAF, and VPN solutions


• Familiarity with Zero Trust Architecture and IAM platforms


• Ensure secure client infrastructure through proactive risk identification and response

Project & Client Management

• Demonstrated success managing IT projects and customer-facing initiatives


• Excellent communication skills with both technical and non-technical stakeholders; adept at building long-term client relationships and delivering high-touch service


• Prior IT consulting experience (MSP background/experience is preferred)

Other Qualifications

• Ability to work on multiple projects simultaneously and prioritize work to meet adapting deadlines


• Strong analytic and problem-solving abilities


• Attention to detail


• Willingness to participate in on-call support activities and work irregular hours when needed


• Bachelor’s degree in computer science or related field

Preferred Certifications

• Cisco Certified Internetwork Expert (CCIE)


• Cisco Certified Network Professional (CCNP)


• Microsoft Certified: Azure Solutions Architect Expert


• Microsoft Certified Solutions Expert (MCSE) – Cloud Platform & Infrastructure

Compliance & Background Requirements

To maintain employment with our company, by mandate, each employee MUST

• Be a U.S. Citizen and hold a valid driver’s license with a clean record


• Pass a MSHP/Federal fingerprint-based background check


• Complete the CJIS Security & Privacy Training Certification

This is a full-time, onsite position based in our St Louis, MO office.