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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # 5G/6G Software Test Engineer - **Company:** Keysight Technologies - **Location:** Madrid, Spain - **Contract:** Permanent contract - **Skills:** Testing (Software), C (Programming Language), Application Programming Interfaces (APIs), Automation of Tests, C Sharp (Programming Language), C++ (Programming Language), Computer Programming, Continuous Integration, Digital Electronics, Python (Programming Language), Modular Design, Software Architecture, Systems Integration, Test Data, Large Language Models, Multi-Agent Systems, Git, Software Coding, Restful APIs, Software Version Control - **Published:** August 5, 2026 - **Apply:** https://www.buscojobs.com.es/5-g-6-g-software-test-engineer-en-madrid-ID-365545261 ## About the Role BS, MS degree in electronic engineering or equivalent, with a minimum 5 years of professional experience. Knowledge of/ Experience in/ Proficiency in SW Programming /code development, C, C++, C#, Python. Solid experience with: Software architecture and modular design REST APIs and service integration Version control (Git), CI/CD, and automated testing Solid practical experience in integrating Large Language Models (LLMs) via APIs or enterprise platforms. Familiarity with agent frameworks Analytical problem-solving skills and communication skills Experience working in manufacturing and/or product development role. Excellent people and communication skills Ability to interact with internal and external partners/customers in different geographic areas Desired Qualifications: Knowledge of/ Experience in/ Proficiency in analog (including RF and Microwave) and digital circuits. Desire to collaborate with cross-functional teams worldwide to achieve objectives Good organizational skills and the desire to work in a fast-paced, results-driven environment. Self-motivated and able to take direction on high-level objectives and create/execute project plans ## Description Responsibilities:Design and implement SW testUsing your programming skills to create tools for controlling measurement hardware and test equipment.Support in the R&D design verificationHelping to design the manufacturing process and develop product tests required to determine instrument performance and specifications.Making modifications to test stations or creating new test stations as needed to support production test needs.Potentially picking up product design responsibilities as the product gets into production.Analyzing test data and making specification recommendations during instrument specification setting process.Working with team in Malaysia / Penang (Keysight Manufacturing plant) to transfer instrument production when needed and maintenance current products avoiding customer scalationsCreating documentation for the production tests and test stations.Partnering with Penang to address and resolve quality issues that may appear during production.Basic Qualifications:BS, MS degree in electronic engineering or equivalent, with a minimum 5 years of professional experience.Knowledge of/ Experience in/ Proficiency in SW Programming /code development, C, C++, C#, Python.Solid experience with:Software architecture and modular designREST APIs and service integrationVersion control (Git), CI/CD, and automated testingSolid practical experience in integrating Large Language Models (LLMs) via APIs or enterprise platforms.Familiarity with agent frameworksAnalytical problem-solving skills and communication skillsExperience working in manufacturing and/or product development role.Excellent people and communication skillsAbility to interact with internal and external partners/customers in different geographic areasDesired Qualifications:Knowledge of/ Experience in/ Proficiency in analog (including RF and Microwave) and digital circuits.Desire to collaborate with cross-functional teams worldwide to achieve objectivesGood organizational skills and the desire to work in a fast-paced, results-driven environment.Self-motivated and able to take direction on high-level objectives and create/execute project plansKeysight is an Equal Opportunity Employer.#J-*****-Ljbffr ## Related Videos - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Dirty Tests And How To Clean Them](https://www.wearedevelopers.com/videos/515-dirty-tests-and-how-to-clean-them) - [Rest API Antipatterns](https://www.wearedevelopers.com/videos/100208-rest-api-antipatterns) - [More efficient software for more efficient microchips](https://www.wearedevelopers.com/videos/1164-more-efficient-software-for-more-efficient-microchips) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) - [Unlocking the potential of Digital & IT at Vodafone](https://www.wearedevelopers.com/videos/602-unlocking-the-potential-of-digital-it-at-vodafone) ## Related Articles - [The 8 Best Code Testing Tools](https://www.wearedevelopers.com/magazine/402-the-8-best-code-testing-tools) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [The Ultimate Software Engineer Career Path Guide for 2023](https://www.wearedevelopers.com/magazine/146-the-ultimate-software-engineer-career-path-guide-for-2023) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Is Software Engineering Hard?](https://www.wearedevelopers.com/magazine/448-is-software-engineering-hard) - [What is Software Engineering?](https://www.wearedevelopers.com/magazine/289-what-is-software-engineering)