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Senior Software Engineer (C coding) - ZDX

Zscaler

$105,000 - $150,000
Nov 17, 2025
San Jose, CA, USA
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Zscaler is looking for a Software Engineer to join their ZDX team to develop and maintain their cloud security platform.

Requirements

  • Familiarity with Programming in C.
  • Knowledge of software development on Unix/Linux systems.
  • Handling of REST APIs.
  • Understanding of L4-L7 network model, TCP/IP networking stack.
  • Software design, profiling, and verification skills.
  • Programming in Rust or Go.
  • Good in fundamentals - Operating System concepts, Event-based programming, Multi-threading, Memory optimization, Fault Tolerance, good debugging and troubleshooting skills.

Responsibilities

  • Participate in all phases of the product development cycle, from definition, design, through implementation and test.
  • Develop functional specifications, assess task requirements and scheduling, and participate in the development, debug, and support.
  • Work on design and code components of a large-scale distributed system with a keen sense for high performance and scalability, troubleshooting issues with a hawkish acumen.
  • Partner with other feature teams, Operations and Support (when needed) to help keep a healthy cloud and happy customer and at the end of the day – display accountability of areas assigned to you.

Other

  • 3+ years of software development experience.
  • This role is based in our San Jose, CA office (hybrid, 3 days a week in office).
  • Zscaler proudly offers comprehensive and inclusive benefits to meet the diverse needs of our employees and their families throughout their life stages.