- Executed in-depth penetration testing for a major corporate client's web application, identifying critical security vulnerabilities -Employed advanced penetration tools and methodologies to fortify the security architecture, markedly strengthening the client's defense against cyber threats.

- Led the deployment of a cutting-edge blockchain initiative for Sygnum Bank. - Worked on the integration of wallet connectivity to decentralized applications (dApps) for enhanced transaction security, utilizing Securosys APIs and WalletConnect to ensure seamless user experiences and system integrity.

-Engineered a Java-based optimization resulting in a 50% reduction in API calls, significantly enhancing system efficiency and reliability. -Designed and implemented a Python-based analytics tool for visualizing enterprise zone utilization, which enabled stakeholders to identify underused resources, driving a strategy that cut operational costs.

Conducted research in Explainable AI & Natural Language Processing, developing an AI summarization system using Llama2, integrated with an explanation mechanism based on the SBERT model, to produce transparent and efficient summaries of extensive scientific documents, thereby enhancing decision-making efficiency for professionals.

- Architected a Visual Basic sales forecasting tool that delivered enduring value, evidenced by its multi-year utilization and annual updates at the client’s request, underscoring a sustained improvement in their forecasting capabilities -Crafted advanced Javascript chatbots, enhancing customer engagement, and proactively led customer workshops to tailor solutions to client needs, demonstrating a commitment to customer service excellence

• First engineer on an internal DFINITY project that later spun out as Caffeine AI. • Fine-tuning large language models (LLMs) to improve code generation performance for low-resource programming languages. • Implementing scalable context engineering pipelines (incl. RAG) to improve retrieval quality and reasoning. • Building benchmarking frameworks for production Al systems.

• First employee to build Caffeine AI, a no-code, chat-based application development platform. • Owned LLM optimization for code generation through fine-tuning, evaluation, and production deployment. • Developing agentic and retrieval systems for conversational full-stack workflows. • Implementing multimodal systems for vision, image generation, editing, and speech capabilities.