Senior Systems & Network Engineer
Forward Slash Technology
Overview 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. 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 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. #J-18808-Ljbffr Forward Slash Technology
- ...Technology is a St. Louis-based Cyber Security, Information Technology, and Managed Services provider. We are seeking a Senior Systems & Network Engineer to join our St. Louis‑based engineering team. This is a senior‑level, client‑facing individual contributor role with...SeniorFull timeWork at office
- Leidos is seeking an experienced Systems Engineering SME to provide technical leadership for the Chinook Program supporting the customers' application. You will guide architecture, modernization, and operations while mentoring engineering teams to deliver reliable, scalable...Senior
- ...Senior Systems Engineer (SAS) Location: St. Louis, MO Clearance: TS/SCI Citizenship: US Citizenship Required Whether running countries, corporations... ...1+ years experience RHEL7/8 1+ years of experience in networking, IP addressing and ports Desired Skills Knowledge of SQL...Senior
$75.2k - $158.1k
CACI International Inc is seeking a Network Engineer III in St. Louis, Missouri. This role involves performing research, requirements analysis, design, installation, and troubleshooting of network hardware. Candidates should have a minimum of 5 years of experience in large...SeniorFlexible hours- ...Overview: We are seeking an experienced Senior Systems Engineer to support mission-critical geospatial and enterprise infrastructure environments. This position focuses on the design, integration, modernization, and sustainment of large-scale Windows, Cloud, and hybrid...SeniorFull time
- CACI is seeking a Network Engineer III to perform research, requirements analysis, design, installation, documentation, troubleshooting, and... ...of local and wide-area networks. The role emphasizes system specifications, risk mitigation, QA compliance, and performance...SeniorLocal area
- Chameleon Integrated Services is looking for a Senior Network Engineer to support complex LAN/WLAN/WAN issues. This remote role requires hands-on experience with essential networking protocols, tools, and the ability to lead network specialists. The ideal candidate will...SeniorRemote job
- ...Windows OS, web servers, and virtualization technologies. The position focuses on performance optimization, troubleshooting, and providing advanced support. Ideal candidates will also have a strong background in network security and Microsoft SQL Server. #J-18808-Ljbffr KCSSenior
$146k - $234k
Peraton is looking for an Expert Systems Engineer in St. Louis, MO. This role supports the Office of Geomatics, advancing GeoData Cooperative programs. The candidate will oversee engineering solutions and collaborate with various partners to ensure comprehensive mission...SeniorWork at office- ...leading Open Payments Platform, sitting at the center of a network processing more than $50b of GMV annually. Spreedly's Payments... ...to enhance transaction security. About the Role: As a Senior Systems Engineer at Spreedly, you'll play a key role in scaling and strengthening...SeniorImmediate startRemote workWork from homeWorldwideFlexible hours
- GeoAcuity is seeking a Systems Engineer to support a major Esri-based enterprise GIS deployment. You will deploy ArcGIS across diverse environments, troubleshoot complex deployments, and optimize performance while aligning technical objectives with customer business goals...Senior
- ...Integrated Services has expertise in operations management, quality systems, data operations and cybersecurity. We secure some of the... ..., and we believe in promoting from within. Role: Senior Network Engineer Consultant Purpose: Assess, document, stabilize, and...SeniorTemporary workImmediate startFlexible hours
- McCarthy Holdings, Inc. is seeking a Network Engineer II to ensure stability, security, and performance of our IT infrastructure across sites nationwide. You will install, configure, and troubleshoot network devices, manage security platforms, and provide advanced support...Senior
- Neara is seeking a Staff Safety Systems Engineer in St. Louis, MO, to establish and lead our system safety program for autonomous freight technology. In this essential role, you will own systems safety and lead compliance verification of our innovative battery-electric...SeniorFull time
- Intramotev is seeking a Staff Safety Systems Engineer to lead the development of their system safety program. This position will involve significant collaboration with engineering teams, focusing on safety compliance for self-propelled battery-electric railcars in St....Senior
- ...Geospatial/GIS | Type: Regular Full‑Time Geospatial Systems Engineer - Multiple Positions (Junior / Mid / Senior) NV5 Geospatial is recruiting qualified and... ...guidance for platform components such as storage, networking, and security. Work closely with customers and partners...SeniorFull timeLocal area
- A technology solutions provider located in St. Louis seeks a Senior Systems Engineer. This role requires 6+ years of related experience and an active TS/SCI clearance. Responsibilities include architecting software services, troubleshooting environments, and ensuring data...Senior
- Hubbell Incorporated seeks a Systems Engineer to lead system design across the product development lifecycle, defining requirements and coordinating with marketing, engineering, sales, and support to ensure performance and schedule goals. The role can be based in Solon...Senior
$92.3k - $166.85k
...mission that matters? Leidos is seeking a highly motivated Senior Systems Administrator/Help Desk Engineer to support a cutting‑edge Agile software development... ...Chinook program. Collaborate with cybersecurity, network engineering, and software development teams to ensure...SeniorContract workShift workDay shiftAfternoon shift- ...expertise in operations management, quality systems, data operations and cybersecurity. We... ...allowance ~ PTO and more Role: Sr. Network Engineer Supporting the Pacific Region - This is a remote opportunity The Senior Network Engineer resolves larger and more...SeniorTemporary workFor contractorsLocal areaRemote work
- ...Job Title Work with operational IT technical leads, senior developers to identify tasks and various needs. Work closely with PMO... ...support implementations. Tier 3 support for Application Management systems in both non-prod and prod environments. Establish new...Senior
$164.9k - $223.1k
...Senior Systems Engineer At Boeing, we innovate and collaborate to make the world a better place. We’re committed to fostering an environment for every teammate that’s welcoming, respectful, and inclusive, with great opportunity for professional growth. Find your future...SeniorInterim roleRelocationVisa sponsorshipWork visaShift workDay shift$70 - $80 per hour
...Description Job Description Apply now: Senior Azure Platform & Reliability Engineer, Onsite - St. Louis, MO. Start... ...'s most critical Azure-hosted systems. Job Summary Assess... ..., including Kubernetes, identity, networking, observability tooling, and infrastructure...SeniorContract workImmediate start$136.85k - $185.15k
...inclusive, with great opportunity for professional growth. Find your future with us. Boeing Global Services (BGS) Engineering team is seeking a Senior Systems Engineer to support the Air Dominance Proprietary 2 team in Hazelwood, Missouri. This role is responsible for...SeniorPermanent employmentRelocationVisa sponsorshipWork visaFlexible hoursShift workDay shift$52 - $55 per hour
...Job Description Job Description Job Title: Sustainment Systems Engineer Job Description The Sustainment Systems Engineer is responsible... ...who drive scale, innovation and speed to market. With a network of almost 20,000 consultants and 5,000 clients across the U.S...SeniorContract workTemporary workWork at officeMonday to Friday- ...GDIT has an exciting and challenging opportunity for a Network Engineer supporting an Intelligence Community customer’s wide-area (WAN... ...critical infrastructure. Responsibilities: Coordinate system maintenance, monitoring, and installation activities across diverse...SeniorLocal area
$93.12k - $125.71k
Leonardo DRS in Bridgeton, MO seeks a Senior Systems Engineer for our Advanced Concepts team. This role supports Business Development in evaluating technology and leading development efforts. Candidates should have a Bachelor’s in Engineering and 5+ years experience. The...Senior- ...CRB is a leading provider of sustainable Engineering, Architecture, Construction and Consulting solutions... .... Job Description We are seeking a Senior Process Engineer with deep expertise in liquid processing systems within the food and beverage industry . This...Senior
- Spectrum is looking for a Network Engineer III in Maryland Heights, MO. This role involves implementing approved network architecture, mentoring... ...work. Successful applicants will navigate complex network systems and facilitate interactions across teams, ensuring high-...SeniorWork at officeRemote work
$112.2k - $151.8k
Avionics Power Systems Engineer, Experienced or Senior LevelCompany:The Boeing CompanyBoeing Weapons and Missile Systems in St. Charles, Missouri, is... ...instrumentation such as power supplies, oscilloscopes, signal/network analyzers, function generators, and DMMs.Experience...SeniorPermanent employmentFull timeWork experience placementInterim roleRelocationVisa sponsorshipWork visaFlexible hoursShift workDay shift
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Systems & Network Engineer. Be the first to apply!
- distributed systems engineer Saint Louis, MO
- operations support system engineer Saint Louis, MO
- system performance engineer Saint Louis, MO
- microsoft systems engineer Saint Louis, MO
- mission system engineer Saint Louis, MO
- system engineer remote Saint Louis, MO
- senior staff systems engineer Saint Louis, MO
- senior windows systems engineer Saint Louis, MO
- healthcare systems engineer Saint Louis, MO
- sr systems engineer Saint Louis, MO


