Senior R&D Software Engineer

Overview
Keysight is at the forefront of technology innovation, delivering breakthroughs and trusted insights in electronic design, simulation, prototyping, test, manufacturing, and optimization. Our ~16,800 employees create world-class solutions in communications, 5G, automotive, energy, quantum, aerospace, defense, and semiconductor markets for customers in over 100 countries. Learn more about what we do.

Our award-winning culture embraces a bold vision of where technology can take us and a passion for tackling challenging problems with industry-first solutions. We believe that when people feel a sense of belonging, they can be more creative, innovative, and thrive at all points in their careers.

Eggplant Performance is a multi-language Windows performance testing platform (C++, Java, C#, Python) used to load-test applications across web, TCP, Citrix, and custom protocols. We're looking for a Software Test Automation Engineer to work across our platform to ensure a high quality product.

Responsibilities

• Build and maintain features across the C++/Java/.NET engine and Python tooling layers.
• Drive the Python 2 → 3.14 migration and REST API modernisation work.
• Maintain SWIG-based cross-language interop without breaking API parity.
• Write automated tests alongside feature work, not after.
• Debug systematically across engine/injector/controller boundaries.
• Review code for correctness, security, and maintainability.

Required skills:

• Bachelor/Masters in Computer Engineering/Computer Science more than 5 years of experience in relevant field
• C++ (C++11 and newer ideally).
• Strong Python skills, including good working knowledge of the ecosystem (uv, PyPi etc), Java (8+), C#.
• Familiar with Git for source control.
• Test driven development: Google Test, PyTest, JUnit with knowledge of test structure up and down the testing pyramid.
• Object oriented architecture and design concepts.
• Solid understanding of network protocols.
• Multithreaded programming in one of the above languages.
• Secure coding principles and techniques.
• Added advantage with experience in using Eggplant Performance and Eggplant Functional software.

Bonus skills:

• Agile working methods.
• PyQt4/PyQt5/PyQt6 or other desktop GUI framework experience.
• Experience with build orchestration tools (Ant, MSBuild) across multi-language codebases.
• Familiarity with performance/load testing concepts (virtual users, protocol-level test scripting)
• Experience with SWIG or other cross-language binding generators
• OSS license compliance literacy (GPL/LGPL/reciprocal license families and why they matter for a shipped commercial product)
• Experience directing AI coding assistants on real production codebases, writing scoped specs/plans, critically reviewing AI-generated diffs, and knowing when to trust vs. verify