Derek Papierski — AI & software engineer
I’m Derek. I build software, care about design, and like figuring out how things work.
Projects
Selected work
- RENEWProject started 2025scleroderma study appEngineering & product design
A study app for managing fatigue with scleroderma - SproutProject started 2025ai health coachSystem design & AI engineering
An AI health coach inside RENEW - StitchesProject started 2026nonprofit archive siteDesign & development
A new website for a nonprofit's archive of handmade dolls - Code CoachProject started 2024coding practice platformDesign & full-stack development
A coding practice platform for a university ACM chapter
Systems & features
- RENEW RedesignProject started 2025RENEWproduct design, react native
RENEW Redesign — product design, react native. - RENEW UpgradeProject started 2025RENEWreact native, expo
RENEW Upgrade — react native, expo. - RENEW BackendProject started 2025RENEWphp, mysql
RENEW Backend — php, mysql. - Sprout RAG PipelineProject started 2025Sproutretrieval, llm systems
Sprout RAG Pipeline — retrieval, llm systems. - Sprout Long-Term MemoryProject started 2025Sproutllm systems
Sprout Long-Term Memory — llm systems. - Sprout EvalsProject started 2025Sproutllm evaluation
Sprout Evals — llm evaluation.
Earlier
- Bank customer churnProject started 2024data analysisData analysis & modeling
Which bank customers leave, and a model to flag them - Gaming sentiment analysisProject started 2024data analysisData analysis & modeling
What players say about games, through sentiment classification