About Zscaler

Zscaler (NASDAQ: ZS) accelerates digital transformation so that customers can be more agile, efficient, resilient, and secure. The Zscaler Zero Trust Exchange is the company’s cloud-native platform that protects thousands of customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location.

With more than 10 years of experience developing, operating, and scaling the cloud, Zscaler serves thousands of enterprise customers around the world, including 450 of the Forbes Global 2000 organizations. In addition to protecting customers from damaging threats, such as ransomware and data exfiltration, it helps them slash costs, reduce complexity, and improve the user experience by eliminating stacks of latency-creating gateway appliances.

Zscaler was founded in 2007 with a mission to make the cloud a safe place to do business and a more enjoyable experience for enterprise users. Zscaler’s purpose-built security platform puts a company’s defenses and controls where the connections occur—the internet—so that every connection is fast and secure, no matter how or where users connect or where their applications and workloads reside.

Responsibilities:

You will be expected to participate in all phases of the product development cycle, from definition, design, through implementation and test.
Develop functional specifications, assess task requirements and scheduling, and participate in the development, debug, and support.
You will be working on design and code components of a large-scale distributed system with a keen sense for high performance and scalability, troubleshoot issues with a hawkish acumen, work with Operations and Support (when needed) to help keep a healthy cloud and happy customer and at the end of the day – display accountability and sense of ownership of areas assigned to you.

Minimum Qualifications:

5+ years of software development experience
3+ years of Programming expertise on C

Solid understanding of TCP/IP protocol stack and other related protocols and products Use of tools like traceroute, ping, iperf etc.Experience in multiple versions of HTTP including HTTP/3, QUICKnowledge of TLS, PKI, IPsec

Sound knowledge of Unix/ Linux systems and networking internals
Strong knowledge of Algorithms and Data Structures
Strong software design, profiling, and verification skills.
Strong in fundamentals - High-performance Computing, Event-based programming, Multi-threading, Memory optimization, Fault Tolerance etc.
Good understanding of distributed systems
Very good debugging and troubleshooting skills.
Experience developing large, maintainable software product architectures.
Proficient in design/code reviews and preferably in writing automatable unit and integration tests.
Excellent verbal, written and interpersonal skills.
Self-starter takes initiative & ownership, identifies, and completes tasks; goal driven.
Ability to work with remote teams, handle multiple tasks, prioritize, and meet deadlines.

Preferred Qualifications:

Knowledge of VPN, Load balancers, IPS/IDS, Routers and Firewall is a plus.
Experience in Datapath Networking
Knowledge of DNS, DHCP, VPN, routing and switching
Familiarity with frameworks like DPDK or VPP
Familiarity with Python
Programming in Rust

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 proud to be an equal opportunity and affirmative action employer. We celebrate diversity and are committed to creating an inclusive environment for all of our employees. All qualified applicants will receive consideration 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 characteristics 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. For additional information about the federal requirements, click here.

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.

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Staff Software Engineer - C + Networking (Layer 4 to 7))

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