Your browser does not support javascript! Please enable it, otherwise web will not work for you.

Senior Staff Software Engineer

Home > Python programming jobs

Senior Staff Software Engineer in USA

  • Zscaler
  • Full time
  • Email
  • San Jose, CA

Responsibilities

  • Architect, design, develop, and maintain scalable system test automation infrastructure for the ZIA Core cloud product.
  • Build repeatable automation suites for L4–L7 technologies, including cloud firewalls, IPsec/GRE tunneling, load balancers, IPS/IDS, and routing and switching.
  • Perform manual and automated functional, integration, performance, and scale testing, including test plan and test case creation.
  • Debug and troubleshoot complex network infrastructure, HTTP/SSL, firewall, and customer-environment issues.
  • Own testing at scale, optimize continuous regression cycles, and mentor junior engineers.
  • Collaborate with cross-functional teams throughout software design, development, and maintenance.

Requirements

  • 12+ years of overall experience and strong Python programming skills for building test automation frameworks.
  • Foundational understanding of AI/ML technologies and experience leveraging, securing, or positioning AI-driven solutions within the functional domain.
  • Solid understanding of TCP/IP, HTTP(S), TLS, PKI, DNS, DHCP, VPN, HA, routing and switching, and IPsec/GRE tunneling.
  • Strong background in L3, L4, and L7 filtering policies, with hands-on exposure to load balancers, IPS/IDS, and routers.
  • Experience testing cloud security or SaaS products across functional, integration, performance, and scale dimensions.
  • Strong debugging and troubleshooting skills for network infrastructure, HTTP/SSL, and firewall issues.
  • Experience with traffic generators, performance/load testing tools, and fuzzing techniques is preferred.
  • Experience with AI-assisted coding, static/dynamic analysis, or intelligent automation tools is preferred.
  • Track record of mentoring junior engineers and leading large-scale test automation or quality initiatives for distributed cloud systems is preferred.

Benefits

  • Hybrid work arrangement with three days per week in the San Jose, California office.
  • Various health plans, vacation and sick time off plans, parental leave options, retirement options, education reimbursement, and in-office perks.

Salary: $158k - $225k/yr

Zscaler

Zscaler is a leader in zero trust security, providing a cloud-native platform that enables organizations to secure users, applications, and data while driving digital transformation. Our Zero Trust Exchange platform leverages advanced AI and the largest security data lake to combat cyber threats,...

Similar positions

Software Engineer in Test

  • Roadie
  • Full time
  • USA
  • 09/13/2026
  • Salary: Competitive
  • Remote

Principal Software Engineer - Builder Experience

  • Elastic
  • Full time
  • Remote
  • 09/13/2026
  • Salary: €73k-€116k
  • Greece

Principal Software Engineer - Builder Experience

  • Elastic
  • Full time
  • Remote
  • 09/13/2026
  • Salary: zł 369k-zł 584k
  • Poland

Senior Devops Engineer

  • Woliba
  • Full time
  • USA
  • 09/13/2026
  • Remote

Senior Core Infrastructure Engineer

  • Oracle
  • Full time
  • USA
  • 09/13/2026
  • Salary: Competitive
  • Nashville, TN

Listings

by


Job Type

Language

Country

CodingJobBoard.com © 2026