Network Security Engineer; Zscaler Specialist

Job Title:

Network Security Engineer (Zscaler Specialist)

Location:

St. Louis, MO

Work Arrangement:
Hybrid

Employment Type:

W2 Contract

Duration: 33+ Months (August 3, 2026 – April 30, 2029)

Pay Range: $58.09/hr on W2 | $69.80/hr. on C2C

Final date to receive applications:
July 15, 2026

• Extensive experience with Zscaler Internet Access (ZIA) and Zscaler Private Access (ZPA)
• Deep knowledge of Zero Trust security architecture and implementation
• Expertise in Proxy Implementation, Identity Aware Proxy (IAP), and Reverse Proxy tools
• Proficiency in Network Configuration and Zscaler Web Security protocols
• Hands‑on experience with Proxy Auto‑Configuration (PAC) file creation, management, and optimization

• Relevant industry certifications (e.g., Zscaler Certified Professional - ZCP, CCNP Security)
• Proven track record in a large enterprise environment (12+ years of relevant experience)
• Strong troubleshooting capabilities for complex network security incidents

We are seeking a highly skilled Senior Network Security Engineer with over 12 years of experience to manage and optimize our Zscaler‑based security infrastructure. This role is critical in maintaining a robust Zero Trust environment, ensuring seamless connectivity, and safeguarding enterprise assets. The successful candidate will lead the design, implementation, and maintenance of Zscaler solutions, working collaboratively within a hybrid team environment to uphold the highest security standards.

• Design, implement, and maintain comprehensive Zscaler security solutions, ensuring seamless integration within complex enterprise environments.
• Develop, manage, and troubleshoot Zscaler security and access policies to strictly enforce organizational security requirements.
• Create, update, and optimize PAC (Proxy Auto‑Configuration) files to ensure secure, efficient internet traffic routing.
• Configure and manage application and forwarding profiles to support mission‑critical business applications and secure connectivity.
• Collaborate with cross‑functional IT and security teams to resolve incidents, perform root cause analysis (RCA), and implement long‑term preventive measures.
• Act as a subject matter expert, staying ahead of emerging network security trends to recommend and implement architecture best practices.

• Medical
• Dental
• Vision
• 401(k)

EEOC Compliance

We are an equal opportunity employer, and all qualified applicants will receive consideration for employment.

AI Usage Policy:
Pacer Group uses AI to assist in screening applications. Final hiring decisions are made by human recruiters based on qualifications and experience.