or apply directly on Zscaler's site. We never take the application ourselves.
Is this posting real?
- This role has been open
- 73 days Zscaler's roles stay open a median of 76 days
- Reposted
- No
- Salary listed
- No 0% of Zscaler's roles list one
- Ghost-job risk at Zscaler
- high 365 stale, 19 reposted of 370 open
- Hiring momentum
- 564 roles opened in the last 90 days ↑ up vs. the prior 90 days
- Last confirmed on the employer's board
- 2026-10-23
Measured from postings appearing on and disappearing from Zscaler's own greenhouse board since 2026-08-03. Full hiring picture for Zscaler.
About this role
As a Principal Software Development Engineer at Zscaler, you will design and scale high-performance backend services using Rust for the Zero Trust Exchange platform. Your role involves developing distributed systems with a focus on concurrency and fault tolerance, implementing gRPC-based APIs, and mentoring junior engineers to ensure technical excellence. You will work in a dynamic environment, collaborating across teams to drive the evolution of the platform while optimizing system performance.
- benefits
- 3/5
- freshness
- 1/5
- career value
- 4/5
- role clarity
- 4/5
- pay transparency
- 0/5
Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of Zscaler as an employer.
What you need
- 14+ years of software development experience
- Expertise in systems programming and Rust
- Extensive experience with async frameworks such as Tokio or async-std
- Proven track record of building resilient, observable, and horizontally scalable distributed systems
- Deep understanding of Linux fundamentals, networking, container-based environments, CI/CD, and kernel-user space interaction
Nice to have
- Experience leveraging AI-assisted developer tools, automated profiling, or AI acceleration libraries
- Professional experience with systems languages like C/C++ or Go in performance-critical environments
- Hands-on experience with gRPC, Protobufs, and L2–L4 networking protocols including TCP/IP, UDP, and QUIC
What you get
- Various health plans
- Time off plans for vacation and sick time
- Parental leave options
- Retirement options
- Education reimbursement
- In-office perks, and more!
Worth weighing
- No salary listed
- The role requires a significant amount of experience (14+ years) which may limit candidates
- The focus on Rust and async frameworks may not appeal to those with experience in other languages or paradigms
Summarised from Zscaler's posting. Read the full original.
Listed by Zscaler on their greenhouse job board, last confirmed open on 2026-10-23. PitchMeAI is not the employer.
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