Zscaler (NASDAQ: ZS) accelerates digital transformation so customers can be more agile, efficient, resilient, and secure. The Zscaler Zero Trust Exchange platform protects thousands of customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. Distributed across 200+ public data centers globally and thousands of private sites at the edge, the SASE-based Zero Trust Exchange is the world’s largest in-line cloud security platform.
We believe the future of work is Human + AI and are building an AI-native enterprise where human potential is amplified by machine intelligence to solve the world’s hardest security challenges. Driven by deep customer obsession, we are committed to the mission, outcome, and to each other. We bring these commitments to life through three core behaviors: ownership and collaboration, trust through outcomes and impact, and a challenge culture with ongoing feedback. Ready to make an impact at the company pioneering security transformation in the AI era? Join us at Zscaler.
Role
We are looking for a Senior Software Development Engineer to join our team. This is a hybrid role based in Bangalore,India reporting to the Senior Manager, Software Engineering in the Engineering department. You will join the team that built the world’s largest cloud security platform from the ground up, enabling organizations worldwide to harness speed and agility with a cloud-first strategy. With more than 100 patents and 15 million users across 185 countries, you will bring your vision to a team of experts dedicated to enhancing our multi tenant architecture and global footprint.
What you’ll do (Role Expectations)
- Designing, developing, and optimizing high-performance network system architecture and security features to support mission-critical applications
- Partnering with Engineering Architects, Product Managers, Solution Architects, and customers to understand complex use cases and review PRDs
- Authoring design and functional specifications while driving unit testing and automation to ensure high product quality
- Collaborating across cross-functional teams to resolve system-level issues, optimize data path performance, and drive feature innovation
- Applying advanced software design principles and troubleshooting expertise to coach junior team members and maintain compliance with federal security certifications
Who You Are (Success Profile)
- You thrive in ambiguity, easily building the path as you walk it and transforming dynamic challenges into meaningful, scalable solutions.
- You act like an owner with a strong bias for action, operating with integrity while moving seamlessly between high-level strategy and hands-on execution.
- You are a problem-solver who is energized by finding solutions to complex technical challenges that drive maximum impact.
- You are a high-trust collaborator who is ambitious for the team, fostering continuous growth through open, candid, and respectful feedback.
- You are a learner with a growth mindset, actively seeking feedback and exploring new technologies to continuously elevate yourself and your partners.
What We’re Looking for (Minimum Qualifications)
- Demonstrated curiosity and active exploration of AI tools, with a proven history of integrating new technologies to enhance daily workflows and augment problem-solving
- Bachelor's or Master's degree in Computer Science or a related field with 9+ years of experience in system engineering for high-performance networking
- Expertise in Linux kernel-based networking (L2/L3), stateful firewalls, NAT, network drivers, routing protocols (BGP, OSPF, PIM), and protocols like VLANs, DHCP, DNS, SSL, DTLS, QUIC, IPsec, GRE, and WireGuard
- Proficiency in Go and Python programming languages with strong problem-solving skills for debugging complex data path issues
- Strong communication and collaboration skills to design scalable systems effectively in a high-accountability environment
What Will Make You Stand Out (Preferred Qualifications)
- Experience integrating AI/ML frameworks or intelligent data path analysis models to optimize kernel-level networking performance and automate predictive threat detection
- Experience with WireGuard, tunneling protocols (GRE, L2VPN), HA protocols (VRRP), alongside certifications like FIPS or FedRAMP and prior experience with TLS, DTLS, and QUIC
- Familiarity with cloud computing platforms (AWS or Azure), containerization technologies (Docker, Kubernetes), and advanced virtualization or security solutions
#LI-Hybrid #LI-AN4
At Zscaler, we are committed to building a team that reflects the communities we serve and the customers we work with. We foster an inclusive environment that values all backgrounds and perspectives, emphasizing collaboration and belonging. Join us in our mission to make doing business seamless and secure.
Our Benefits program is one of the most important ways we support our employees. Zscaler proudly offers comprehensive and inclusive benefits to meet the diverse needs of our employees and their families throughout their life stages, including:
- Various health plans
- Time off plans for vacation and sick time
- Parental leave options
- Retirement options
- Education reimbursement
- In-office perks, and more!
Learn more about Zscaler's hybrid working model and benefits here.
By applying for this role, you adhere to applicable laws, regulations, and Zscaler policies, including those related to security and privacy standards and guidelines.
Zscaler is committed to providing equal employment opportunities to all individuals. We strive to create a workplace where employees are treated with respect and have the chance to succeed. All qualified applicants will be considered for employment without regard to race, color, religion, sex (including pregnancy or related medical conditions), age, national origin, sexual orientation, gender identity or expression, genetic information, disability status, protected veteran status, or any other characteristic protected by federal, state, or local laws. See more information by clicking on the Know Your Rights: Workplace Discrimination is Illegal link.
Pay Transparency
Zscaler complies with all applicable federal, state, and local pay transparency rules.
Zscaler is committed to providing reasonable support (called accommodations or adjustments) in our recruiting processes for candidates who are differently abled, have long term conditions, mental health conditions or sincerely held religious beliefs, or who are neurodivergent or require pregnancy-related support.
Skills Required
- Bachelor’s or Master’s degree in Computer Science or a related field
- 9+ years of experience in systems engineering for high-performance networking
- Experience exploring and integrating AI tools to improve workflows and problem-solving
- Expertise in Linux kernel-based L2/L3 networking
- Experience with stateful firewalls, NAT, network drivers, and routing protocols including BGP, OSPF, and PIM
- Experience with VLANs, DHCP, DNS, SSL, DTLS, QUIC, IPsec, GRE, and WireGuard
- Proficiency in Go and Python
- Strong problem-solving skills for debugging complex data-path issues
- Strong communication and collaboration skills
- Experience integrating AI/ML frameworks or intelligent data-path analysis models
- Experience with WireGuard, GRE, L2VPN, VRRP, FIPS, FedRAMP, TLS, DTLS, and QUIC
- Familiarity with AWS or Azure
- Familiarity with Docker and Kubernetes
- Experience with advanced virtualization or security solutions
Zscaler Compensation & Benefits Highlights
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Healthcare Strength — Health, dental and vision plans through major carriers, alongside mental-health services, virtual care, and fertility resources, create broad coverage. Feedback suggests coverage breadth and provider choice are seen as strong points.
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Parental & Family Support — Paid parental bonding leave for birthing and non-birthing parents, plus additional disability leave and a phased return option, signals meaningful family support. Feedback suggests these policies contribute to a family-friendly package.
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Equity Value & Accessibility — An ESPP with at least a 15% discount and RSUs for eligible roles add wealth-building potential beyond base pay. Feedback suggests stock programs are a notable strength of the total rewards mix.
Zscaler Insights
What We Do
Zscaler accelerates digital transformation so our customers can be more agile, efficient, resilient, and secure. Our cloud native Zero Trust Exchange platform protects thousands of customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location.
Why Work With Us
Our impact comes from how we work—every day, in every decision, as one team. Our values and leadership principles are more than words; they're our operating system. They fuel a culture of execution where trust, transparency, and accountability help us deliver meaningful results for our customers, colleagues, and our company. www.zscaler.com/culture
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Zscaler Offices
Hybrid Workspace
Employees engage in a combination of remote and on-site work.
Zscaler's hybrid work environment balances individual employee work styles with best practices to build trust and collaboration – all in support of addressing personal productivity and achieving organizational success.
