Staff Software Development Engineer in Test, DAPII

Whats in it for you

• Review product design and suggest improvements from testability and user perspective.
• Through understanding of Data Plane architecture and packet processing pipeline with domain knowledge in handling Application traffic and security packet inspection techniques like Data loss prevention, Threat Inspection.
• Design and deliver effective and automatable test plans.
• Write test automation which can execute on large parallelized CI/CD Infrastructure
• Be an effective code reviewer for automation and product code.
• Analyze and recommend the right tools for automation.
• Simulate negative scenarios and perform chaos testing.
• Handle customer escalations by recreation, collecting debug logs, work with Development teams on root cause analysis and drive customer issues to closure from QE perspective.
• Work closely with the development team, product management, Support team and other stakeholders in various phases of product development to ensure alignment with strategy, planning, risks and mitigations.
• Through understanding of the SDLC process.
• Perform real-time content analysis to ensure robust security measures.
• Conduct deep inspection of traffic to detect and mitigate threats in near real-time.
• Write and maintain product or system development code, ensuring high standards of quality.
• Develop Automation scripts and maintain comprehensive documentation.
• Build and maintain services capable of inspecting various network protocols, such as HTTP, at line rate.
• Review and provide feedback on code developed by other team members to ensure adherence to best practices, including style guidelines, code accuracy, testability, and efficiency.
• Contribute to the architecture and design of distributed systems, focusing on scalability, reliability, and efficiency.
• Collaborate with cross-functional teams, including software engineers, system architects, and product managers, to deliver high-quality software solutions.

Required skills and experience

• 10+ years of industry experience in designing and developing automated tests and frameworks for enterprise grade software, including direct experience developing scalable, high-performance cloud services based upon microservices architecture
• Experience in network and web security technologies - firewalls, Web Application Firewall, L7 Access-Policies, web security, IDP / IPS, DNS based security, L7 DDoS.

• Deep understanding of networking protocols

  including TCP/IP, HTTP/S,WebSocket, DNS,

  TLS/SSL decryption (MITM)

  techniques, L3 VPNs like IPSec, Wireguard etc.

• Must Have

  Good fundamentals of TCP, TLS, HTTP protocols.

• Must Have

  Http proxy experience.
• Programming mastery in Python.
• Strong understanding of computer architecture - multi-threading, CPU scheduling, memory management
• Good understanding of algorithms and data structure to implement Real-time inline data processing
• Strong expertise in RESTful Web Service automation and Day-1 automation readiness.
• Strong expertise in cloud technologies like Docker, Kubernetes, Helm etc
• Expertise in message protocols like KAFKA, NATS etc
• Expertise in capturing the packets using Wireshark, tcpdump etc and analyzing the packets captured.
• Proven experience in data plane/data path testing for security products (eg, Firewalls, Proxies, IDPS, DPI engines).
• we'll versed with automation tools like Robot framework, Selenium, Healenium, Playwright MCP etc
• Strong expertise in Solution testing, Load and Stress testing, Longevity, WebUI testing and automation with relevance in L7 Security.
• Strong understanding of computer architecture, including multi-threading, CPU scheduling, and memory management.
• Advanced understanding of algorithms and data structures for real-time in-line data processing.
• Extensive knowledge of Linux at a systems level.
• Exceptional analytical and troubleshooting skills, proficient in using debuggers like gdb and tools like Valgrind.
• Experience with performance optimization and scalability of complex systems.
• Strong analytical and troubleshooting skills using debuggers like gdb and tools like Valgrind.
• Hands-on experience with packet capture technologies
  (eg, tcpdump, Wireshark, libpcap) for network traffic analysis and troubleshooting.
• Experience working within a

  SASE

  (Secure Access Service Edge) architecture is a major plus.

• Strong knowledge of Authentication technologies

  including Identity and Access Management, SSO, SAML, OpenID, OAuth2, and MFA is a Plus.

Education

• BSCS or equivalent required, MSCS or equivalent strongly preferred