Software Development Engineer in Test (SDET) 2026

Website Charterhouse

Software Development Engineer in Test (SDET) | AI-Enhanced NOS

Role Overview 

On behalf of a confidential client, Charterhouse is seeking a Software Development Engineer in Test (SDET) to join a high-stakes, greenfield project: building a next-generation, AI-enhanced Network Operating System (NOS) from the ground up. This is a rare opportunity to join an engineering-first culture where quality is not an afterthought, but a foundational pillar. We are looking for either a Principal SDET to architect the overarching global test strategy or a Senior SDET to build out the scalable automation frameworks that will validate the world’s future network infrastructure.


Key Responsibilities

1. Test Architecture & Strategy

  • Greenfield Validation: Architect testing systems designed to validate microsecond-level packet processing and network-wide protocol convergence without the burden of legacy code.

  • Strategic Leadership (Principal Level): Work directly with the CTO to define the quality roadmap, establishing scalable processes that treat testing as a first-class engineering discipline.

  • Network Simulation: Design and build complex, production-grade simulations to test system limits, utilizing tools like GNS3, EVE-NG, or custom-built frameworks.

2. Automation & Protocol Testing

  • Scalable Frameworks: Develop and maintain automated testing systems in Python (Pytest/Nose) that are clean, extensible, and capable of keeping pace with rapid NOS development.

  • Protocol Verification: Write and execute rigorous tests to ensure protocols like BGP, OSPF, and MPLS meet industry standards and perform reliably under massive data flows.

  • CI/CD Integration: Own the integration of automated quality checks within the CI/CD pipeline to identify and resolve regressions before they reach production.

3. Systems Engineering & Debugging

  • OS-Level Debugging: Perform deep-system debugging within Linux environments, containers, and virtualized stacks to identify root causes of distributed system failures.

  • Performance & Stress Testing: Conduct large-scale stress tests to ensure the NOS remains stable under extreme pressure and complex deployment scenarios.

  • Collaborative Engineering: Work side-by-side with developers to build quality checks directly into new features during the design phase.


About You: Skills & Competencies

  • Python Expert: Exceptional programming skills with a focus on writing maintainable, high-quality test code.

  • Networking Specialist: A solid grasp of networking fundamentals and experience validating routing protocols in high-acuity environments.

  • Tenacious Debugger: A relentless approach to troubleshooting complex system interactions and distributed environment failures.

  • Tools & Infrastructure: Familiarity with Infrastructure-as-Code (Ansible/Terraform) and modern virtualization technologies.


Qualifications & Requirements

  • Experience (Principal): A minimum of 8 years of hands-on experience in testing or quality engineering, with a proven track record in large-scale, distributed systems.

  • Experience (Senior): Strong background in backend automation with a focus on B2C or infrastructure products.

  • Technical Stack: Proficiency in Linux, Containers (Docker/K8s), and Virtualization.

  • Communication: Excellent verbal and written English communication skills are essential for cross-functional collaboration.

  • Differentiators: Contributions to open-source testing frameworks or experience building quality-focused engineering cultures from scratch.


Why Join This Project?

This is more than a testing role; it is a chance to shape the backbone of modern networking. You will benefit from:

  • True Greenfield Opportunity: The freedom to select the best tools and methodologies without legacy constraints.

  • High-Impact Work: Validating an AI-enhanced NOS that will power global-scale infrastructure.

  • Engineering Excellence: A culture that values “secure-by-default” and “quality-by-design” principles above all else.


Are you ready to redefine how the world validates its networks? Apply today to join this next-generation NOS team as an SDET.


Guide for the Next Step: Would you like me to tailor this description further to emphasize either the Principal or Senior level specifically?

More information

Job Location : Dubai ,United Arab Emirates
City : Dubai
Company Name : Charterhouse 
Posted: 2 days ago

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To apply for this job please visit www.charterhouseme.ae.