Contracted to audit, refactor, and stabilize a production tracking tool for semiconductor manufacturing histories. Streamlined database queries and eliminated race conditions in concurrent data logging.

const result = await db.transaction(async (trx) => {
  return await trx.query(batchInsertSQL, batchValues);
});

Built a secure, tenant-isolated reporting dashboard for biomedical datasets, translating raw tabular metrics into interactive charts and automated downloadable reports.

export function verifyTenant(req, res, next) {
  const tenantId = req.headers['x-tenant-id'];
  req.db = getTenantConnection(tenantId);
  next();
}