Zscaler is looking to design and build a low-latency, high-throughput data forwarding plane using Rust to enhance their cloud security platform.
Requirements
- 7+ years of experience with extensive experience coding with Rust, particularly in systems programming and async frameworks like Tokio or async-std
- Proven expertise in building resilient, observable, and horizontally scalable distributed systems
- Strong understanding of Linux fundamentals, including networking, namespaces, sockets, and kernel-user space interaction
- Hands-on experience with gRPC, Protobufs, service-oriented architectures, and L2–L4 networking protocols (TCP/IP, UDP, QUIC, VLAN, routing, encapsulations, etc.)
- Proficient in container-based environments, Git, CI/CD workflows, and performance instrumentation
- Experience with systems languages like C/C++ or Go, particularly in performance-critical environments
- Familiarity with Linux networking stacks, kernel-space technologies (eBPF, XDP, DPDK), bare-metal deployments, Kubernetes networking, service meshes, or observability tools
Responsibilities
- Designing and building a low-latency, high-throughput data forwarding plane using Rust, leveraging its async/await model for efficient I/O and service-oriented infrastructure
- Developing distributed, scalable systems with a focus on concurrency, fault tolerance, and messaging
- Implementing and maintaining gRPC-based APIs and services to integrate forwarding plane capabilities with control and orchestration layers
- Optimizing system performance through profiling tools across kernel-space and user-space
- Engaging in code reviews, system design discussions, technical documentation, and mentoring junior engineers
Other
- This is a hybrid role, reporting in the San Jose office 3 days a week.
- Reporting to the Sr. Director of Software Engineering
- Named a Best Workplace in Technology by Fortune and others, Zscaler fosters an inclusive and supportive culture that is home to some of the brightest minds in the industry.
- If you thrive in an environment that is fast-paced and collaborative, and you are passionate about building and innovating for the greater good, come make your next move with Zscaler.
- 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.
- Open-source contributions to Rust or Linux networking projects are a strongly preferred
- LI-JM1
- LI-Hybrid
- 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!
- 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 consider 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.
- 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.
