Marija Ivanišević Wallace

Designed and implemented multimodal image support in a multi-tenant enterprise AI platform (V3 chat), including a provider abstraction layer that converts an internal image representation into multiple LLM provider formats and a history replay mechanism to re-inject image context across multi-turn conversations. Contributed to LangGraph-based document extraction pipelines using Pydantic output schemas, tiered named entity resolution with explicit abstention for ambiguous matches, and audit records that link every extracted value to its source passage. Built financial data modeling logic including deterministic period algebra and a DAG-based metric hierarchy with cascade recomputation. Developed a six-phase multi-agent research generation pipeline with background tasks and per-question progress tracking. Implemented data quality checks (period consistency, calculation verification, hierarchy mismatch detection) and delivered product capabilities including quota analytics, editable data

Worked on pharmaceutical and pharmacovigilance software supporting drug safety monitoring and regulatory compliance. Led the complete design and build of corporate web platforms, including UX/UI, CMS architecture, accessibility, and SEO, enabling non-technical teams to manage content independently. Developed careers platforms with location-based filtering and automated departmental form routing. Contributed to Oracle APEX development using PL/SQL packages and procedures and integrated with third-party systems via REST APIs and workflows such as e-signature/document signing.

Built responsive, accessible digital platforms for public sector and heritage clients, managing feature delivery and client communication across several simultaneous projects. Delivered interactive maps, filtering systems, event management features, CMS integrations, and search experiences consistently on schedule.