Erkin Qarayev

I’m a full-stack engineer specializing in Python and TypeScript/React, and I’ve spent 4+ years building a JupyterLab-based econometric/marketing-analytics platform end to end. I maintain the frontend extension and data-pipeline product, and I harden multi-tenant security while keeping performance and reliability front and center.

At Technosec.io, I’m the primary owner and core driver behind the JupyterLab plugin experience: a custom file browser, a dialog-queue system, and a design-system library on the JupyterLab plugin API and Lumino. I also lead a multi-step data-pipeline wizard with validation gates, draft persistence, and a queue-based transform-execution engine, plus a React Flow pipeline-graph editor with a two-way ipywidgets↔React state-sync layer.

I’m especially proud of the large-scale engineering work: I led an AG Grid major-version migration (v27 → v35), cut API response times ~30% via query redesign and indexing, and reworked the test suite onto real fixtures—~1,000 tests across round-trip, integration, and end-to-end flows. I contribute upstream to JupyterLab and Jupyter-AI, and I’ve built tooling like Python→TypeScript schema-codegen to keep typed components consistent across the monorepo.