SHAH SHAHBAZ ALI

Senior Software Engineer

Dolphin Advanced Technology Services | United States (Remote) | July 2025 – Present

Lead backend and infrastructure for Dolphin POS, a multi-tenant fintech platform, and internal CRM/ERP.

• Architected multi-tenant Node.js and Express REST APIs for payment, reporting, and customer modules
• Engineered card payment and checkout flows (authorization, capture, refunds, reconciliation) with gateway integrations and offline-first handling for retail
• Designed SQL schemas, migrations, and indexes, and optimized queries for high-volume transactions
• Built real-time chat, video and audio calls, and screen sharing with WebRTC and a MediaSoup SFU
• Administered production Linux servers: deployments, monitoring, Nginx, PM2, Redis, and BullMQ queues
• Integrated AWS and Azure cloud services, including AWS Lambda functions for serverless workloads
• Secured the platform with authentication, role-based access control, and data encryption
• Built customer data pipelines (campaigns, retargeting, segmentation) and sales and transaction reports
• Added AI-powered automation and conversational assistants across POS and CRM/ERP tools

Software Engineer

eSanad | United Arab Emirates (Remote) | January 2025 – May 2025

UAE insurance platform (website and CRM) covering motor, health, travel, and land insurance.

• Built server-rendered features with Next.js, React, and TypeScript (SSR/ISR) and Next.js API routes
• Built WebSocket customer chat and integrated the WhatsApp Business and Facebook Developer APIs
• Deployed and maintained the platform on Azure across production, staging, and development
• Managed MongoDB, SSL certificates, Azure firewall rules, and automated backups for disaster recovery
• Ran feature branching, peer reviews, and CI/CD pipelines with GitHub Actions

Web Developer (React JS)

NX3 Digital | Karachi, Pakistan | January 2024 – December 2024

React developer building responsive web applications for agency clients.

• Built and maintained React.js applications with optimized rendering and reusable components
• Improved front-end performance, accessibility, and mobile responsiveness
• Led the implementation of CI/CD pipelines, improving deployment efficiency by 20%
• Managed web projects in Agile sprints with Jira, Slack, and ClickUp, working directly with clients

Full Stack Developer (Freelance)

Self-Employed | Remote (US, Canada, and UAE clients) | May 2022 – December 2023

Freelance full-stack developer delivering CRM, HRMS, and custom web platforms end to end.

• Built complete CRM and HRMS systems with React, Node.js, and Express, from requirements to deployment
• Implemented REST APIs, MongoDB and SQL databases, authentication, and role-based access control
• Delivered insurtech and sales platforms for clients in the US, Canada, and the UAE
• Reduced client website load times by 30% through front-end performance optimization
• Owned client communication: requirements gathering, demos, and post-launch support

PDFClay | Founder & Sole Engineer | October 2025 – Present

pdfclay.com | Python, FastAPI, PyMuPDF, Tesseract OCR, SQLite, Next.js, React, Chrome Extension (MV3), Nginx, Ubuntu

Live online PDF editor that changes the real text inside a PDF while keeping its original fonts, plus 17 tools to merge, split, compress, convert, OCR, sign, and protect files. Built and operated solo.

• Built an in-place text editing engine on PyMuPDF: redaction removes only the changed glyphs, then new text is redrawn in the document's embedded font, leaving untouched text byte-for-byte identical
• Shipped 17 stateless PDF tools (merge, split, compress, PDF to Word/Excel, Tesseract OCR, AES-256 protection) behind a registry, so a new tool is one registry entry plus one backend function
• Deployed on a hardened Ubuntu 24.04 VPS: Nginx reverse proxy, Let's Encrypt TLS, systemd services, SSH-key-only access, ufw, fail2ban, and idempotent deploy scripts
• Protected CPU-heavy endpoints with rate limiting, bot detection, and abuse blocking, and built self-hosted analytics with a server-health dashboard instead of third-party trackers
• Published a Manifest V3 Chrome extension that opens web and local PDFs in the editor, and handled technical SEO (structured data, sitemap, IndexNow pings on deploy)

MCP DB & API Tools (Open Source) | Author & Maintainer

github.com/ShahShahbaz305/mcp-db-api-tools | Node.js, MCP SDK, MySQL, Zod, npm

Published npm package (@shah1900/mcp-db-api-tools) with two Model Context Protocol servers that let AI coding agents run read-only MySQL queries and call authenticated REST APIs for debugging.