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

Domain: Enterprise Network Security

Application Deadline: July 15, 2026

SKILLS REQUIRED

Primary (Must-Have):

• 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

Secondary (Good to Have):

• 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

POSITION OVERVIEW

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.

ROLES & RESPONSIBILITIES

• 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.

BENEFITS

Medical | Dental | Vision | 401(k)

EEOC Compliance

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

DISCLAIMER

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.