Selected work

Selected systems & work

Full-stack engineering case studies by Joushwa Shahzad: Everest Railcar, Azara Health Care, ShackWise, and 5 Peaks Youth Solutions. Built with Next.js, NestJS, React, TypeScript, PostgreSQL, and AI/LLM integrations.

• 01

  Internal LLM Tooling

  Production AI tooling with OpenAI and Anthropic Claude prompt pipelines, Zod-validated structured output, and BullMQ async inference.

  Production LLM pipelines with Zod-validated structured output and BullMQ-backed async inference.

• 02

  5 Peaks Youth Solutions

  FERPA-compliant student information and youth program SaaS with attendance, observations, dual KPI engines, and three role-gated portals.

  Replaced spreadsheet program tracking with FERPA-aware portals, dual KPI engines, and a minimum-cohort privacy guard.

• 03

  Azara Health Care Portal

  Full-stack care coordination SaaS with caregiver-client matching, shift lifecycle management, 4-role RBAC, and queue-based notifications.

  Delivered 4-role RBAC dashboards and intelligent matching that cut caregiver assignment from manual search to ranked matches in seconds.

• 04

  ShackWise Collaborative PropTech Platform

  Real-time collaborative platform for home buyers, partners, and agents with a priority-weighted home scoring engine and Socket.IO Share/Compare workflows.

  Shipped Socket.IO Share/Compare collaboration and a priority-weighted home scoring engine for buyers, partners, and agents.

• 05

  Everest Railcar Tracking Dashboard

  Production freight rail SaaS with real-time visibility, a 3-queue BullMQ pipeline, automated exception engine, SPLC resolution, and 9 live KPI widgets.

  Eliminated 100% of manual daily CSV processing with a 3-queue BullMQ pipeline and 5 automated exception rules.