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Infinity Systems Engineering · 3 weeks ago

Mid-Senior Network Engineer

Alexandria, VA

Full-time

Onsite

Mid, Senior Level

$140K/yr - $180K/yr

5+ years exp

Infinity Systems Engineering specializes in aerospace and defense solutions, and they are seeking a skilled Systems Administrator/Network Engineer to join their mission-driven team. This role involves managing network infrastructure and system administration in a classified environment while ensuring compliance with security measures and industry standards.

ConsultingGovernmentInformation Technology

Comp. & Benefits

No H1B

Security Clearance Required

U.S. Citizen Only

Responsibilities

Design and implement secure and scalable network infrastructure solutions

Configure and install network hardware, including routers, switches, firewalls, and wireless access points

Assist in developing network architecture to support business needs and growth

Configure, manage, secure, and troubleshoot Juniper and Cisco switches

Contribute to network and systems design in alignment with evolving mission requirements

Monitor network performance, availability, and security

Perform routine maintenance, updates, and patches for network devices

Identify and troubleshoot network issues, ensuring minimal downtime and optimal functionality

Configure, manage, secure, and troubleshoot Juniper and Cisco switches

Perform systems administration on Windows and Linux platforms (updates, security, troubleshooting, management)

Maintain secure high performance KVM systems in an operational environment

Harden systems in accordance with DoD STIGs

Conduct and support ACAS scans and remediation

Assist with property accountability systems and technical logistics

Implement and maintain network security measures, including firewalls, VPNs, and access controls

Ensure compliance with industry standards, company policies, and regulatory requirements

Conduct network vulnerability assessments and respond to security threats

Support network VLANs, management & security, QoS, and routing protocols

Develop and maintain SOPs and technical documentation

Provide Level 2/3 support for network-related issues

Collaborate with IT teams to resolve connectivity problems affecting users and business applications

Document network configurations, troubleshooting steps, and resolutions

Support a wide range of IT and infrastructure-related duties based on mission need

Work with vendors and service providers to procure and maintain network equipment

Assist in evaluating new technologies and making recommendations for improvements

Coordinate with internal teams to support IT projects and initiatives

Qualification

Network securityNetworking protocolsRouterSwitch managementLinux system administrationWindows system administrationCompTIA Security+Juniper switch configurationProblem-solving skillsCommunication skillsCollaborative mindsetDocumentation skills

Required

4+ years' experience and a bachelor's degree in Computer Science, Computer Engineering, or related field, or a minimum of 8 years of experience in lieu of a degree. Candidates currently pursuing a degree may be considered if the timeline aligns with the position start

5+ years of experience in network engineering, administration, or related IT roles

TS/SCI, CI Poly clearance

Experience with network security, firewalls, and VPNs

Strong knowledge of networking protocols (TCP/IP, BGP, OSPF, VLANs, etc.)

Proficiency in configuring and managing routers, switches, and firewalls

Experience with network monitoring tools and troubleshooting methodologies

Understanding cybersecurity principles and network security best practices

Excellent problem-solving and communication skills

Strong experience in Juniper switch configuration (Cisco experience is a plus)

Proficient in Linux and Windows system administration

Active CompTIA Security+ CE or equivalent DoD 8570 baseline certification

Proven ability to work independently with minimal oversight

Familiarity with network protocols, VLANs, and DoD IT environments

Strong communication skills and a collaborative team mindset

Commitment to security best practices and thorough documentation

Preferred

Industry certifications such as CCNA, CCNP, or equivalent

Experience with cloud networking (AWS, Azure, etc.)

Familiarity with SD-WAN and network automation tools

Knowledge of VoIP and wireless networking solutions

Benefits

Great Company Culture. Infinity firmly believes that our success is due to the happiness and personal satisfaction of our employees.

Health Benefits. 100% Company Paid monthly Medical and Dental premiums for you AND your family.

Prepare for the Future. 401(k) company contribution, with free professional financial planning advisors

Rest and Relaxation. Three weeks' Vacation – and we offer an annual company reward trip after one year of employment.

Health and Wellness. We offer 48 hours of sick leave, in addition to your Vacation, as well as Flex-Spending options (Medical and Dependent Care)

Work that Stays at Work. Genuine work/life balance and flexibility. We know our employees have lives outside of work and we support you in living them!

Education and Professional Training Reimbursement. We support our employees career aspirations and growth through our Education Reimbursement Program!

Profit Sharing Plan. Infinity’s success is due to our employees which is why all eligible employees receive an annual payout based on our Profit-Sharing Plan.