Castle Logic: Pittsburgh software development and design by Samantha Lavrinc
At Castle Logic, design and engineering are the same job to me. I'm a Pittsburgh-based full-stack developer with a background in UX/UI, Java backend systems, NLP pipelines, and structured data. I build things that look good and actually hold up.
Explore my portfolio below and see how design and technology intersect to solve real challenges.
Full-Stack
LiveMyOrbit
MyOrbit is a map of the people in your life. People are nodes, relationships are connections, and the map can show how everyone fits together instead of giving you another list of names to keep straight. I was responsible for the design, frontend, backend, database, security, billing, testing, and deployment. I also had to figure out how to make the graph work on a phone without compromising usability.
Experiments
ShippedMyOrbit: Mobile
MyOrbit was built around a large graph with a panel on either side. That works on a desktop, where there is room for the people list, the map, and the selected person's details at the same time. On a phone, those three columns do not fit, and shrinking the map defeats the reason for using a map in the first place. I redesigned the mobile interface around one constraint: keep the map visible while people browse, select someone, or edit details.
Full-Stack
ConceptStructured Clinical Document Reasoning Platform
A hierarchy-aware, provenance-tracked reasoning graph for healthcare data, designed to answer clinical, billing, and quality-reporting questions from one shared ontology. The platform combines structured clinical knowledge, document-level evidence, temporal relationships, ontology mappings, and semantic similarity in a single reasoning layer. Deterministic graph queries and RAG-assisted natural-language querying sit on top of the same underlying data rather than operating as separate systems.
WHAT CASTLE LOGIC CAN DO
Castle Logic builds full-stack, end-to-end solutions: intuitive interfaces backed by real backend logic, data workflows, and system architecture. Whether it’s React on the surface or Java, SQL, and NLP pipelines underneath, every project blends creativity with solid engineering.
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