Principal Software Development Engineer (C Programming, Go) jobs in United States
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Zscaler · 2 weeks ago

Principal Software Development Engineer (C Programming, Go)

positionSan Jose, CA
timeFull-time
remoteHybrid
seniorityLead/Staff
money$182K/yr - $260K/yr
date12+ years exp

Zscaler is a leader in cloud security, accelerating digital transformation for customers globally. They are seeking a Principal Software Development Engineer to work on the control plane for the Zscaler Internet Access product, focusing on technical leadership in design, development, and optimization of cloud infrastructure features.

Cloud SecurityCyber SecurityEnterprise SoftwareSecurity
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H1B Sponsor Likelynote

Responsibilities

Practice technical leadership in design, development, and optimization of control path features in Cloud Infrastructure
Define and execute the technical roadmap ensuring alignment with business goals
Develop and own components of a large-scale distributed system with a sense for scalability
Use AI-powered tools for advanced problem solving and engineering efficiency
Mentor other engineers

Qualification

C programmingGoNetworking protocolsCloud computingFreeBSDLinuxPostgreSQLContainerizationSoftware designHigh-performance computingMentoring

Required

12+ years of experience in C programming along with proven experience in Go or Rust; Bachelor's or Master's Degree in Engineering/Computer Science
Strong knowledge of networking protocols and services like DNS, HTTP, TCP/IP, SSL/TLS. Strong knowledge of authentication protocols like LDAP, SAML, OAuth
Strong knowledge of FreeBSD or Linux systems internals
Strong fundamentals: high-performance computing, distributed systems, event-based programming, memory optimization, fault tolerance
Strong software design, profiling, and verification skills along with proficiency in design/code reviews and writing automated unit and integration tests

Preferred

Experience in cloud computing with AWS, GCP, or other cloud providers, and containerization using Docker and Kubernetes
Advanced knowledge of PostgreSQL
Experience with YugabyteDB and/or CockroachDB

Benefits

Various health plans
Time off plans for vacation and sick time
Parental leave options
Retirement options
Education reimbursement
In-office perks, and more!

Company

Zscaler

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Zscaler is a global cloud-based information security company that enables secure digital transformation for mobile and cloud.
dateFounded in 2008
location
San Jose, California, USA
people-size5001-10000 employees
web-link
https://www.zscaler.com

H1B Sponsorship

Zscaler has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (164)
2024 (220)
2023 (108)
2022 (144)
2021 (82)
2020 (51)

Funding

Current Stage
Public Company
Total Funding
$1.67B
Key Investors
TPG GrowthLightspeed Venture Partners
2025-07-01Post Ipo Debt· $1.5B
2024-04-23Post Ipo Equity· $22.7M
2018-03-16IPO

Leadership Team

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Jay Chaudhry
CEO, Chairman & Founder
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Hemant Dabke
Area Vice President
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Recent News

Benzinga.com
Zscaler Is 30% Below Its Peak — Can A New Growth Chief Fight A Bearish Trend?
2026-01-09
The Hacker News
Researchers Uncover NodeCordRAT Hidden in npm Bitcoin-Themed Packages
2026-01-09
GlobeNewswire
Zscaler Appoints Sunil Frida as Chief Marketing Officer to Drive Next Phase of Global Growth
2026-01-06
Company data provided by crunchbase