Qascom | Aerospace & Defenceis looking for aBackend Software Engineerfor its headquarter in Cassola (VI), Italy. As part of the Software Engineering Team, the candidate will contribute to the design, development, testing and implementation ofhigh-end critical software applicationsfor space missions and Governmental services. This includes the possibility of being involved in the newest cutting-edge projects of the European Space Agency and the Italian Space Agency, as well as supporting the major international industrial players of the sector.Initially, the resource will manage the maintenance and evolution of acomplex distributed system for GNSS interference monitoring .What you'll work onDesign, development, test and deploymentof distributed systems for data collection, storage and visualization; System level activities,including but not limited to,requirements analysis, identification and flow-down, software design and developmentDevelopment of technical documentation, according to the applicable standards relevant to the engineering domain (e.G. ESA/ECSS, GSWS, ETSI, etc.)Implementation and deployment ofRAG systemsandfine-tuned LLMsin production environments.Maintenance ofproduction systemswith focus on availability, according to SLAManagement of thesystem infrastructureandDevOps activities, including monitoring, troubleshooting, and fixing infrastructure-related issuesWhatdo you needBachelor's or Master'sdegree inComputer Science Engineering; Professional experience in developing and maintainingcomplex applications deployedin production, ideally under SLA; Professional experience withrelational databases ; Professional experience ofcontainerization(Docker is required, Kubernetes is a plus); Good knowledge ofweb applicationsdevelopments and deployment; Good knowledge ofsecurity principles; Good knowledge ofsoftware engineering, design practices, patterns and object-oriented programming ; Proficient in.Net Core ; Hands on experience withLinux ; Exposure todistributed systems ,event drivendevelopment,microservicesandmessage brokers ; Eligibility for NationalSecurity Clearance; Good knowledge of written and spokenEnglish .Desired Knowledge & SkillsExperience with relational database (schema design, SQL language), PostgreSQL preferred; Experience with large scale / high data volume applications; Design and production deployment of RAG architectures and fine-tuned Large Language Models, ensuring scalable integration, performance optimization, and secure enterprise adoption; Familiarity with Gitlab and DevOps activities (CI/CD, pipelines); Knowledge of Angular and/or Python is considered a plus; LLMs, RAG, fine-tuning, vector databases, prompt engineering, Python, MLOps, and AI security.Do you feel you don't match 100% of the requirements? Don't hesitate to apply anyway or visit our careers page for further job opportunitiesCareers | Qascom.