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VLink Inc

Senior Network Engineer L1/L2/L3

On site

Chicago, United states

Senior

Freelance

16-02-2026

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Skills

Communication Leadership Network Security Firewalls Decision-making Architecture Security Architecture

Job Specifications

Job Title: Senior Network Engineer L1/L2/L3

Location: Chicago, IL (ONSITE)

Duration: 12+ Months

About VLink: Started in 2006 and headquartered in Connecticut, VLink is one of the fastest growing digital technology services and consulting companies. Since its inception, our innovative team members have been solving the most complex business, and IT challenges of our global clients.

Job Description:

We are looking for a Senior Network Engineer to act as a technical expert for enterprise firewall and load balancer platforms.

The role focuses on advanced support, solution ownership, and technical leadership.

Responsibilities:

• Act as SME for Palo Alto Firewalls and F5 BIG-IP

• Lead troubleshooting and resolution of firewall and load balancer issues

• Design, review, and optimize firewall and F5 configurations

• Perform architecture reviews, security hardening, and policy optimization

• Lead major incident handling and root cause analysis (RCA)

• Support migrations, new customer onboarding, and technology refresh activities

• Engage with vendors (Palo Alto, F5) for TAC escalations

• Provide technical guidance and mentoring to L2 engineers

• Own documentation standards, best practices, and operational improvements

• Participate in 24x7 support and on-call rotations

Requirements / Qualifications:

• Bachelor's degree in computer science, Information Technology, or a related field (or equivalent practical experience)

• 10+ years of experience in managed network security or firewall operations

• Deep hands-on expertise with Palo Alto Firewalls and F5 BIG-IP Load Balancers

• Strong understanding of enterprise network security architecture and design

• Experience acting as a technical lead or subject matter expert

• Proven ability to lead issue resolution and technical decision-making

• Experience with vendor coordination and TAC case management

• Strong analytical, documentation, and stakeholder communication skills

Certifications:

• CCNA & CCNP

• PCNSA, F5-CA, or ITIL Foundation

Employment Practices:

EEO, ADA, FMLA Compliant

VLink is an equal opportunity employer committed to fostering an inclusive environment where diversity is celebrated. All qualified applicants will be considered for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status. Employment is contingent upon successful completion of a background check. Applicant information will be handled in accordance with VLink's privacy policy.

About the Company

VLink Inc. is a global software engineering and tech talent partner, delivering next-gen software development, DevOps & AI-powered solutions, and expert software professionals to businesses across the globe. Founded in 2006, VLink helps organizations--from Fortune 500s to SMBs--accelerate digital transformation, enhance operational efficiency & drive innovation in an ever-evolving tech landscape by leveraging the latest technologies and the best IT talent. We don't just build software and apps-- we spark conversations! Tune... Know more