Senior Network Security Engineer - Juniper SRX Firewall & ZTNA

UST; Bengaluru; On-site; INR 1,800,000 - 2,800,000; Full time

Job summary

UST is seeking an experienced Network Security professional to lead enterprise-wide segmentation and Zero Trust initiatives using Juniper SRX Firewall and ZTNA. The role focuses on designing, implementing, and governing network segmentation strategies across data center, campus, cloud, and hybrid environments while ensuring compliance with enterprise security standards and Zero Trust principles.

Responsibilities include architecting segmentation, enforcing policy across environments, and

Qualifications

• Juniper SRX Firewall and ZTNA expertise.

Responsibilities

• Architect and implement network segmentation strategies using Juniper SRX Firewall and ZTNA.
• Design and operationalize Zero Trust security controls through firewall-based policy enforcement across enterprise environments.
• Collaborate with application owners to identify, validate, and map application dependencies to support policy-driven segmentation.
• Define and enforce granular security policies using security zones, network segmentation constructs, and firewall controls.
• Lead the standardization and adoption of Juniper SRX Firewall and ZTNA as the primary segmentation and access enforcement platform.
• Develop and maintain segmentation governance models, policy lifecycle management processes, and alignment with Zero Trust security frameworks.
• Participate in network security design reviews and ensure implementations meet enterprise security standards and security requirements.

Skills

Juniper SRX Firewall and ZTNA

Job description

Role Description

Job Summary

We are seeking an experienced Network Security professional to lead enterprise-wide segmentation and Zero Trust initiatives using Juniper SRX Firewall and ZTNA. The role focuses on designing, implementing, and governing network segmentation strategies across data center, campus, cloud, and hybrid environments while ensuring compliance with enterprise security standards and Zero Trust principles.

Key Responsibilities

• Architect and implement network segmentation strategies using Juniper SRX Firewall and ZTNA to limit lateral movement and enforce least-privilege access.
• Design and operationalize Zero Trust security controls through firewall-based policy enforcement across enterprise environments.
• Collaborate with application owners to identify, validate, and map application dependencies to support policy-driven segmentation.
• Define and enforce granular security policies using security zones, network segmentation constructs, and firewall controls.
• Lead the standardization and adoption of Juniper SRX Firewall and ZTNA as the primary segmentation and access enforcement platform.
• Develop and maintain segmentation governance models, policy lifecycle management processes, and alignment with Zero Trust security frameworks.
• Participate in network security design reviews and ensure implementations meet enterprise security standards and security requirements.
• Analyze business requirements and implement network security solutions across data center, campus, and hybrid environments.
• Provide security posture reporting, control effectiveness metrics, and risk-based insights.
• Support internal and external security audits, compliance assessments, and remediation activities.
• Monitor emerging security threats and recommend policy enhancements to strengthen enterprise defenses.
• Develop and maintain network security policies, processes, and procedures to ensure reliability, availability, and security.
• Collaborate with Cyber Security, infrastructure, and application teams to drive compliance, operational excellence, and secure architecture practices.

Required Skills

Proficient

• Juniper SRX Firewall and ZTNA

Why Join UST

UST partners with global enterprises to deliver technology-led business solutions and digital transformation initiatives. Joining UST provides opportunities to work on modern security challenges, collaborate with diverse global teams, contribute to innovative enterprise programs, and continuously grow through learning and career development opportunities.

Skills

Juniper SRX, ZTNA, Network Security