Senior Data Scientist/AI Engineer

Black Duck Software, Inc. helps organizations build secure, high-quality software, minimizing risks while maximizing speed and productivity. Black Duck, a recognized pioneer in application security, provides SAST, SCA, and DAST solutions that enable teams to quickly find and fix vulnerabilities and defects in proprietary code, open source components, and application behavior. With a combination of industry-leading tools, services, and expertise, only Black Duck helps organizations maximize security and quality in DevSecOps and throughout the software development life cycle. The Data Science group sits within Black Duck's Data Engineering organisation, operating as a centre of excellence in statistical analysis, machine learning engineering, and applied AI. We work at the intersection of cybersecurity and data intelligence; building models, evaluation frameworks, and AI-powered capabilities that directly shape how tens of thousands of developers and security teams understand and respond to risk. Our work spans predictive analytics, behavioural modelling, LLM integration, and the development of internal AI platforms. We're opinionated about quality, curious by default, and outcome-driven in everything we ship. Our Values Trust : We'd rather be late than wrong. Our work is only as valuable as its credibility. Collaboration : We have deep technical expertise, but we work shoulder-to-shoulder with the subject matter experts who define what "correct" actually means in our domain. Results : We're outcome-driven. Research has value, but it has more value when it's written up, shipped, or handed off. Curiosity : Exploration is core to what we do — including the dead ends. (It's not science unless you write it down .) Fun : We work in a genuinely strange corner of the data world. Revel in it. About the Role As a Senior Data Scientist , you will own the design, development, and production deployment of machine learning and AI systems that drive measurable outcomes across Black Duck's cybersecurity platforms. This is primarily a technical individual contributor role — we're looking for someone who can take a problem from framing through to a shipped, evaluated, production system, and who brings genuine depth in ML/AI engineering rather than general data work. Data infrastructure and pipeline ownership sits with our dedicated Data Engineering function. Your focus is on what we do with that data: building models, evaluating them rigorously, integrating AI capabilities into products and internal tooling, and helping shape how the team approaches applied AI at scale. The role is primarily based at our Belfast R&D site. UK/ EMEA remote or hybrid applicants will be considered, with at least quarterly travel to Belfast expected. Additional conference and collaboration opportunities are available commensurate with your impact. Key Responsibilities Design, develop, and maintain machine learning and AI systems, from prototype through to production, with clear evaluation criteria and operational handover Lead the integration of LLM and agentic AI capabilities into Black Duck products and internal platforms (including prompt engineering, retrieval-augmented generation, and tool/agent orchestration) Design and own LLM evaluation frameworks : defining task-specific metrics, building offline and online eval pipelines, running structured comparisons across models and configurations, and producing clear recommendations with supporting evidence Conduct cost-benefit analysis on AI/ML system decisions : model / architecture / methodology selection, operational costs, build-vs-buy trade-offs, and quantifying the value of AI/ML interventions against baseline approaches; communicating findings clearly to technical and non-technical stakeholders Collaborate with R&D and Product Engineering to embed AI capabilities into existing workflows and surfaces Contribute to the team's shared practices around model governance, reproducibility, and responsible AI use Mento…