Senior Network Engineer + Testing (manual & automation)

Bangalore Rural, Bengaluru April 12, 2026 Full Time

Thales is looking for a Senior Customer Oriented Scenario Testing (COST) to join our Application Security WAF team.

As COST Engineer you will investigate, troubleshoot, reproduce complex field issues and escalations on VM & HW and take ownership for E2E customers scenario testing, and leading our BETA testing with customers directly.

This will be the job for you if you like diving into tricky problems, finding workable solutions, and enjoy gaining a deep knowledge of the product youre working on and lead beta of new features with customers

Additionally, you will be working to improve the quality of our platform and product by designing and executing tests on different deployments.

This position serves as a middle layer supporting our customers with quick and effective solutions while simultaneously interfacing with our development team to find the right fix for issues and provide valuable feedback to the team.

We are looking for someone who brings a continuous growth mindset, with a strong drive for learning and self-improvement, and who operates with trust, and accountability.

The ideal candidate shows genuine care for customers, teammates, and product quality, approaching challenges with empathy and responsibility.

Responsibilities:

Troubleshoot and Reproduce complex field issues
Direct clients through issue resolution including customer meetings, status reports and updates
Maintain escalation lab for common customers scenario (HW, VM and Cloud)
Develop customer’s scenario testing flows, write test plans, execute and analysis
Lead new features in BETA testing with customers
Identify, propose and enforce escalation process improvements
Be able to adopt new test technologies , tools, analysis and infrastructure
Share field issues analysis and customer feedback to RnD
Foster close interface with customers, Support, PM and account teams

Required Qualifications:

Senior Security or Networking products Tier 2+ Support At least 5+ years - MUST
CCNA OR CCNP certification - MUST
Strong analytical, diagnostic and problem-solving skills with ability to work independently - MUST
Automation & DevOps Skills (Python, Docker, Jenkins, VMware , Git ) - MUST
Excellent English communication skill (speak and write) and good Customer relation experience - MUST
Experience in reproducing complex networking and HTTP/SSL Scenario in Lab - MUST
Deep understanding of HTTP/SSL protocols, Networking and Linux
Manual QA experience
Knowledge of OWASP Top 10, Kali Linux, Penetration testing experience & security certification
Hands-on with Hardware, VM and cloud platforms
Basic scripting experience (Bash, Python)
Basic understanding of AI concepts and their practical applications
Willingness to travel to customer sites (not often)