Principal Software Development Engineer

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Principal Software Development Engineer in Others

Zscaler
Full time
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Others
08/19/2026
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Bengaluru, India

Responsibilities

Design, develop, and optimize high-performance network system architecture and security features.
Partner with engineering architects, product managers, solution architects, and customers to understand use cases and review product requirements.
Author design and functional specifications while driving unit testing and automation.
Collaborate across teams to resolve system-level issues, optimize data path performance, and deliver new features.
Apply advanced software design and troubleshooting expertise to coach junior team members and maintain compliance with federal security certifications.

Requirements

Bachelor’s or master’s degree in computer science or a related field.
10+ years of experience in systems engineering for high-performance networking.
Expertise in Linux kernel-based L2/L3 networking, stateful firewalls, NAT, network drivers, routing protocols, and networking and security protocols.
Proficiency in Go and Python with strong debugging and problem-solving skills.
Experience with AI tools and active exploration of new technologies to improve workflows and problem-solving.
Strong communication and collaboration skills.
Preferred experience with AI/ML frameworks or intelligent data path analysis models.
Preferred experience with WireGuard, GRE, L2VPN, VRRP, FIPS, FedRAMP, TLS, DTLS, and QUIC.
Familiarity with AWS or Azure, Docker, Kubernetes, virtualization, and security solutions.

Benefits

Hybrid role based in Bangalore, India.
Various health plans.
Vacation and sick time off plans.
Parental leave options.
Retirement options.
Education reimbursement.
In-office perks.

Zscaler

Zscaler is a leader in zero trust security, providing a cloud-native platform that enables organizations to secure users, applications, and data while driving digital transformation. Our Zero Trust Exchange platform leverages advanced AI and the largest security data lake to combat cyber threats,...

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