Sajjad Mahessar Good Merch Group Free audit
~/sajjad $ whoami Operations & Automation Manager

I run the operations.
I build the systems.

Multi-site hospitality group in the West Midlands. Most of the third-party software this business used to pay for has been replaced with tooling I designed and shipped myself — a kitchen compliance app, a staff management iOS app on the App Store, a QR order-and-pay platform taking live card payments, an AI email agent, an automated invoice pipeline and an in-house reservations system.

Education
MSc Business Analytics, Warwick Business School
Projects
37
Saved per year
£27,840
// about

About me

hello

Hi, I’m Sajjad. I run operations and automation for Good Merch Group, a multi-site hospitality group in the West Midlands, and I hold an MSc in Business Analytics from Warwick Business School.

now

I’m Operations & Automation Manager at Good Merch Group, and I take on freelance work building software for hospitality and service businesses, with paying clients already live.

focus

Replacing rented software with systems built around how the operation actually works — £27,840 a year removed so far — and making every figure in the business traceable to a source document.

also

Every project below is written up with what went wrong on the way, not just what shipped. That’s usually where the useful part is.

// experience

Experience

Jul 2026 — Present
Birmingham, UK

Freelance Systems Developer @ Self-employed

Independent client work, building software for hospitality and service businesses.

  • Built and runs a serviced-apartment platform now taking real guests: encrypted door codes, guest check-in, cleaner alerts and event-driven pricing.
  • Shipped client apps to the App Store and Google Play, and a workforce and compliance system for a security company.
  • Freelance: a bilingual hospital management system across three sites, and a recruitment CRM with e-signature agreements and automatic reply capture.
  • Delivered an operations platform review and modernisation roadmap for an aviation caterer.
Dec 2023 — Present
West Midlands, UK

Operations & Automation Manager @ Good Merch Group

Running operations across a multi-site hospitality group, and replacing the software it rented with systems built in-house.

  • Removed £27,840 a year in recurring software by building the kitchen compliance, workforce, reservations, HR and accounting systems in-house.
  • Shipped a QR order-and-pay platform taking live card payments, and a staff management app on the App Store.
  • Built weekly P&L and GP reporting that turned a £758 weekly food loss into a £579 surplus.
  • Secured 55 production database tables in a zero-downtime remediation, and built an AI agent drafting guest email replies.
  • Matched every till key to its beer-line meter to expose an 88% till yield, and built par-level drinks ordering held inside a budget cap.
2022 — 2023
Coventry, UK

MSc Business Analytics @ Warwick Business School

Machine learning, forecasting and analytics for business decisions, at the University of Warwick.

Jan 2021 — Aug 2022
Karachi, Pakistan

Data Analyst @ MedznMore

Analytics for a fast-growing health-tech marketplace supplying pharmacies nationwide.

  • Supported growth in gross merchandise value from 10M to 320M PKR.
  • Built a route-optimisation model for deliveries, and demand forecasts at 90% accuracy across 5,000+ outlets.
// projects

Projects

iOS app

Staff management iOS app

Workforce management on the App Store

Clock-in, rotas, holidays, shift swaps and compliance sheets for 15+ staff. Replaced an £800/month platform and shipped as a white-label product.

SwiftUISupabaseAPNsEdge Functions
Client platform

Serviced-apartment access & pricing platform

Door codes that only exist during the stay

Five serviced apartments run end to end for a paying client: encrypted door codes, guest check-in pages, cleaner alerts and event-driven pricing. Live with real guests.

Node.js / ExpressSQLiteAES-256-GCMHMAC tokens
Reporting

Weekly food & GP reporting

Weekly P&L every figure can be traced

Automated weekly GP and P&L built from till exports, invoices and timesheets. Turned a £758 weekly loss into a £579 surplus — a £1,337 swing in one week.

PythonReportLabEPOS exports
Security audit

Database security audit & remediation

55 production tables locked down live

Found ~40 tables open to the public key — pay, PINs, takings. Fixed in four sequenced stages so it shipped mid-service with zero downtime.

PostgreSQLRow-level securitySQL migrationsSECURITY DEFINER
Web app

Multi-company HR system

One HR system for five companies

Replaced a paid HR platform: per-company logins, mandatory two-step, right to work, contracts and payroll details, filled by bulk import.

JavaScriptSupabasePostgreSQL + RLSTOTP two-step
Client system

Workforce & compliance system for a security company

Compliance, rotas and invoicing for security

Licence and vetting expiries flagged ahead, rota-to-timesheet-to-invoice, subcontractor accounts both ways, and ISO 9001 records in one place.

JavaScriptSupabasePostgreSQLRow-level security
// contact

Contact me

Open to operations, automation and technical operations roles — and to talking with anyone running a multi-site business who suspects they’re paying for software they could own instead.