[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All Keysight Technologies jobs](https://jobs.opennash.com/companies/keysight-technologies/) · [Search jobs](/search/) Keysight Technologies · Barcelona, Spain # Machine Learning (ML) Engineer Barcelona, Spain Data & Analytics Listed on Keysight Technologies’s official careers site. Posted September 9, 2026. Check that it is still open and apply there. [Apply on Keysight Technologies’s careers site →](https://globalcareers-keysight.icims.com/jobs/54211/login) [OpenNash Jobs](https://jobs.opennash.com/) / [Keysight Technologies](https://jobs.opennash.com/companies/keysight-technologies/) / Machine Learning (ML) Engineer ## Job description ### 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. We are looking for a Machine Learning (ML) Engineer to join our industry-leading data and IP management product team to build the knowledge and intelligence layers of SOS AI, our AI platform serving the intersection between Electronic Design Automation (EDA) and AI/ML workflows. ### Responsibilities Design and build low-latency hybrid retrieval (lexical, vector, graph, faceted) over large, heterogeneous data for on-premises, IP-sensitive deployments. ### Develop the semantic insight layer automated tagging, domain-aware metadata, and embeddings as first-class managed assets with version provenance. ### Build the EDA-aware knowledge graph as organizational memory entity and relationship inference, ontology evolution, versioning, and temporal queries. Implement agentic memory and outbound MCP servers exposing retrieval, graph traversal, and lineage to external agents with access controls gatekeeping and full audit. Engineer governance so access control propagates from source data through embeddings, graph nodes, retrievals, and agent responses. Benchmark retrieval quality, embedding models, and LLMs against EDA use cases, selecting models per task under cost and latency constraints. Collaborate with product, EDA tool teams and customers to translate semiconductor and RF workflows into requirements. ### Qualifications MS or PhD in Computer Science, Electrical Engineering, or related field 5+ years building production ML or data-intensive systems. Demonstrated experience building RAG and knowledge graph systems in production (a must): ingestion, indexing, and retrieval pipelines. ### Hands-on expertise with LLMs embeddings, fine-tuning, prompt and context engineering, evaluation, and open-weights models for on-prem inference. Strong command of vector databases, graph databases, and low-latency retrieval infrastructure at scale. Experience with agentic memory management and the Model Context Protocol (MCP) or comparable agent-grounding interfaces. Proficiency in Python and modern ML frameworks ( PyTorch, Hugging Face, etc..), with solid software engineering and API design practices. ML applied to semiconductor applications, especially the RF and microwave industry, is highly valued. Familiarity with data governance, access control, and provenance in IP-sensitive or regulated environments is a plus. Careers Privacy Statement *Keysight is an Equal Opportunity Employer. * ## At a glance - Posted by the employer: Sep 9, 2026 - First seen by OpenNash: Oct 11, 2026 - Last checked: Oct 18, 2026 - Listed for: 39 days - Location: Barcelona, Spain[Apply on Keysight Technologies’s careers site →](https://globalcareers-keysight.icims.com/jobs/54211/login) ## More jobs at Keysight Technologies ### [AI Platform Engineer](https://jobs.opennash.com/companies/keysight-technologies/jobs/fdc3496f1ef782f1fa42/) Barcelona, Spain ### [Customer Service Coordinator – English (+Hebrew or Spanish)](https://jobs.opennash.com/companies/keysight-technologies/jobs/81350c7ae0ba50761f55/) Barcelona, Spain ### [Customer Service Representative (German Speaker)](https://jobs.opennash.com/companies/keysight-technologies/jobs/943d76e90b919776151c/) Barcelona, Spain ### [Customer Service Specialist (Dutch & French Speaker)](https://jobs.opennash.com/companies/keysight-technologies/jobs/703a33f18ae5ece2664a/) Barcelona, Spain ### [R&D Software Operating Manager](https://jobs.opennash.com/companies/keysight-technologies/jobs/d98e0d0d42f8cf2664b6/) Barcelona, Spain ## Similar jobs at other companies ### [Machine Learning Engineer](https://jobs.opennash.com/companies/accenture/jobs/ef14ea91e804ba52f5de/) Accenture ### [Quantitative / Machine Learning Engineer](https://jobs.opennash.com/companies/totalenergies/jobs/259a76019d5c03765816/) TotalEnergies ### [Engineer, Machine Learning Tools](https://jobs.opennash.com/companies/qualcomm/jobs/9e21bbc1139861bf35bd/) Qualcomm · Hyderabad, Telangāna, India ### [Machine Learning Engineer](https://jobs.opennash.com/companies/qualcomm/jobs/8e5f75b2183970dfb4e7/) Qualcomm · Guangdong, China, Xian, Shaanxi ### [Machine Learning Engineer](https://jobs.opennash.com/companies/siemens-energy/jobs/2f86481d59beef5426e4/) Siemens Energy · Bucharest, Romania [Data & Analytics jobs](/functions/data-analytics/) OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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