Principal Software Development Engineer (C Programming, Go)

Zscaler•San Jose, CA

17h•Hybrid

About The Position

About Zscaler 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. Here, impact in your role matters more than title and trust is built on results. We believe in transparency and value constructive, honest debate —we’re focused on getting to the best ideas, faster. We build high-performing teams that can make an impact quickly and with high quality. To do this, we are building a culture of execution centered on customer obsession, collaboration, ownership and accountability. We value high-impact, high-accountability with a sense of urgency where you’re enabled to do your best work and embrace your potential. If you’re driven by purpose, thrive on solving complex challenges and want to make a positive difference on a global scale, we invite you to bring your talents to Zscaler and help shape the future of cybersecurity. Our Engineering team built the world’s largest cloud security platform from the ground up, and we keep building. With more than 100 patents and big plans for enhancing services and increasing our global footprint, the team has made us and our multitenant architecture today's cloud security leader, with more than 15 million users in 185 countries. Bring your vision and passion to our team of cloud architects, software engineers, security experts, and more who are enabling organizations worldwide to harness speed and agility with a cloud-first strategy. We are hiring a Principal Software Development Engineer to join our Central Authority team. You will work on the control plane for the Zscaler Internet Access (ZIA) product, which has redefined how security services are delivered in the cloud. You bring an understanding of security protocols and services. Reporting to the Sr. Director, Application Engineering - Central Authority, you will: 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

Requirements

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

Nice To Haves

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

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