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      Zscaler

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      Sales Engineer Interview

      Jan 13, 2026
      Anonymous interview candidate
      No offer
      Positive experience
      Average interview

      Application

      I applied through an employee referral. I interviewed at Zscaler in Aug 2025

      Interview

      solid interview process with 4 total interviews. 1 screening 2 with hiring manager 3 a technical interview 4 with the team I only made it to round 2 and didnt get past that

      Interview questions [1]

      Question 1

      What is the difference from a VPN & a router?
      Answer question

      Other Sales Engineer interview reviews for Zscaler

      Sales Engineer Interview

      Mar 10, 2026
      Anonymous interview candidate
      No offer
      Neutral experience
      Average interview

      Application

      I interviewed at Zscaler

      Interview

      Was a decent interview, did a number of rounds but I was ultimately ghosted. Didn't feel like my performance was the best anyways but nonetheless I showed up, was hoping they'd do the same for me.

      Interview questions [1]

      Question 1

      - Where would I want to focus my learning i.e. certifications ETC, - am I passionate about cybersecurity
      Answer question

      Sales Engineer Interview

      Aug 25, 2025
      Anonymous interview candidate
      No offer
      Negative experience
      Average interview

      Application

      I applied through an employee referral. The process took 2 weeks. I interviewed at Zscaler in Aug 2025

      Interview

      Interview Process: Initial recruiter screen Call with hiring manager Technical interview with Principal SE Week of radio silence Rejection via voicemail citing "not technical enough" Pros: The technical interviewer was knowledgeable about the products Territory seemed to have genuine opportunity Cons: Red Flags About Role Transparency: Both the recruiter and hiring manager gave conflicting stories about why the position was open. The hiring manager mentioned an "advanced candidate in process" but promised "fair evaluation" - this should have been my first warning sign. If you already have a preferred candidate, why waste everyone's time? Poor Communication: After a rushed technical interview, I heard nothing for a full week despite being told they were moving quickly. The recruiter finally left a vague voicemail about not being "technical enough" - no specific feedback or areas for improvement. For a company expecting enterprise-level professionalism, their candidate communication is surprisingly poor. Questionable Technical Assessment: Despite 15+ years in IT and 10 years in sales engineering with companies like Dell/EMC and recent experience at Sumo Logic (a direct competitor in security/observability), I was deemed "not technical enough." The technical interview covered DNS over HTTPS and HTTP versions but barely touched on actual sales engineering scenarios or customer-facing skills they claimed were critical. Rushed Yet Slow: The technical interview felt rushed, yet the overall process dragged with poor follow-up. They emphasized their "90-day training program" and "extensive tribal knowledge" requirements, but then rejected candidates for not already knowing their specific product details. Would not recommend interviewing here unless you're desperate or have inside connections. The lack of transparency and poor communication are likely indicators of larger organizational issues.

      Interview questions [1]

      Question 1

      Explain the differences between TLS 1.2 and 1.3. What is DNS over HTTPS? Describe HTTP version differences.
      Answer question
      2

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