Birmingham, United Kingdom

Osama Bin Shiraz

Technical Lead / Senior Full Stack Engineer

Open to UK / EU roles

I build and lead engineering for SaaS, e-commerce, healthcare, and integration-heavy platforms, mostly in Laravel, React, Next.js, and Node.js. My strongest work is where systems meet: Shopify and ERP integrations, APIs, queues, and webhooks, and the production reliability that keeps a platform standing.

I lead teams, but I stay close to the code: architecture, reviews, and the late-night production debugging when something breaks.

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Best at

E-commerce & ERP integrations
APIs, queues, webhooks, cron & payment flows
Stabilising messy production systems
Dashboards, admin workflows & reporting
Laravel / React / Next.js / Node.js delivery
Leading small teams while staying hands-on

Problems I solve

Shopify store ↔ ERP inventory and order sync that drifts out of agreement
Webhooks dropping or duplicating data
Laravel queues and cron jobs failing silently
Admin dashboards needing better reporting and operational visibility
APIs breaking between Shopify, CRM, POS, ERP, or mobile apps
Production incidents needing senior debugging, not trial-and-error

Selected Work

Shopify ↔ Acumatica ERP integration

High-volume product and inventory sync across thousands of SKUs, with catalog mapping, order workflows, operational dashboards, and the error recovery and alerting needed to keep a live store and an ERP in agreement around the clock.

LaravelPostgreSQLRedis queuesShopify APIWebhooksAWS

Healthcare operations platform

Referral and scheduling workflows, therapist matching logic, credentialing, documentation templates, and audit-friendly data structures for a US operations team where dropped data has real consequences.

Node.jsReactPostgreSQLREST APIsReporting

POS-connected loyalty platform

Backend APIs, queue workers, scheduled jobs, and webhook processing feeding real-time events, analytics, and notifications across thousands of members, coordinated between POS systems, mobile, and backend delivery.

Node.jsReact NativeEvent-drivenAnalyticsNotifications

Experience

Engineering Team Lead / Senior Full Stack Engineer

Jun 2022 – Present

Highwater · long-term US client engagement via OBS Technologia · Remote

Engineering Lead

Jul 2020 – Present

OBS Technologia · software consultancy delivering for US / UK clients

Mobile Application Developer

2020

O3 Interfaces · native iOS (Swift, SwiftUI)

JavaScript / iOS Developer

2019

airtango · React.js and iOS

Web Application Developer

2018 – 2019

developers lab · full-stack (Laravel, Python)

Stack

Languages & Frameworks

PHP 8 / Laravel · JavaScript / TypeScript · React · Next.js · Node.js · React Native

Data & Infrastructure

PostgreSQL · MySQL · Redis · queue workers · webhooks · AWS (EC2/RDS) · Docker · Nginx · Linux · Git · CI/CD

E-commerce & Integrations

Shopify · Magento 2 · BigCommerce · Acumatica ERP · Salesforce · HubSpot · Klaviyo · REST & GraphQL

Practices

System design · API architecture · code review · production support & incident response (Sentry, New Relic) · Agile

Education

MSc Data Science & Artificial Intelligence

2026 – 2027

University of Leicester, UK · in progress

BSc Computer Science

2016 – 2020

National University of Modern Languages (NUML) · Grade A

Open to UK / EU Technical Lead and Senior Full Stack roles: remote, hybrid, or relocation. Graduate Route eligible from 2027; open to visa-sponsored roles.

osamashiraz60@gmail.com LinkedIn GitHub →