Abdelrahman Mahmoud · Software Engineer
Frontends in Next.js and React, APIs and background jobs in NestJS and Laravel, and the Docker and CI/CD setup that ships them. SaaS platforms, marketplaces, payments, integrations, and AI, built end to end.
01 Selected work
KeepComing is my own product, running live. Each project opens into a short case study: the problem, what I built, and the engineering decisions behind it.
connectedApple / Google WalletPaymobWhatsAppRedis
My own SaaS product. A multi-tenant loyalty platform that issues live Apple Wallet and Google Wallet cards.
ResultProduction loyalty SaaS with wallet-issued cards, QR redemptions, and an idempotent, rate-limited partner API.
connectedBullMQRedisPostgreSQL
The queue-driven backend behind Crezio, an AI tool that helps creators decide what to post next. It runs script generation, rendering, approval, and multi-platform publishing.
ResultFully automated script-to-publish pipeline with circuit-breaker and dead-letter resilience.
connectedStripeGoogle CalendarWhatsApp
A multi-tenant booking platform with an availability engine, payments, and revenue reporting.
ResultLive production booking platform serving real businesses at getbookra.com.
connectedStripe ConnectRedisSSE
A multi-tenant, multi-vertical marketplace on a TypeScript monorepo with shared backend infrastructure.
ResultShared backend infrastructure powering multiple marketplace verticals from a single codebase.
connectedOAuth 2.0MongoDBCloudWatchAdmin dashboard
Full-stack multi-firm platform syncing law-firm case systems (Litify/Salesforce, Filevine) with Zendesk in both directions.
ResultReliable two-way sync for multiple law firms, running in production on AWS with centralized logging, least-privilege access and automated failure alerts.
More systems
02 How I engineer
From the screen a user taps to the pipeline that deploys it: where money moves, where jobs fail and retry, and where two systems have to agree. This is what I bring to a team.
Tenant-isolated data, normalized relational models, and versioned partner APIs. Platforms where one codebase serves many businesses safely.
Next.js and React interfaces styled with Tailwind CSS: customer-facing apps, booking flows, and admin dashboards. Responsive, accessible, and Arabic RTL ready.
Queue-driven work with BullMQ and Redis. Retries, circuit breakers, dead-letter recovery, and the transactional outbox so events are not lost.
Stripe and Stripe Connect: vendor onboarding, charges, transfers, refunds, escrow, and subscription billing. Paymob for local markets.
Salesforce, Filevine, Zendesk, WhatsApp Cloud API, Google Calendar, and Apple/Google Wallet. Every webhook HMAC-verified and idempotent.
RAG agents grounded in each tenant’s knowledge base, real-time voice agents, and AI pipelines that run from script to publish.
JWT, Google OAuth, magic links, and TOTP 2FA on a consumer product. An 8-role access hierarchy on a multi-vertical marketplace.
AWS, Docker, Kubernetes, and GitHub Actions CI/CD, plus firewalls with VPN-only access. I take a system from data model to production and keep it running.
03 Stack
React and Next.js on the frontend, TypeScript and PHP on the backend, Docker and CI/CD to ship it. I pick the tool for the job, then make it boring and reliable.
04 About
I'm Abdelrahman, a software engineer in Giza, Egypt. I build production systems end to end: the data model, the API, the interface, and the deploy.
I work across the whole stack. On the frontend, Next.js and React interfaces that people actually use. On the backend, multi-tenant SaaS, marketplaces, payment flows, integrations between systems that were never meant to talk, and AI features that have to be grounded and reliable. Around it all, Docker, CI/CD, and the servers that keep it running.
I also build and run my own product, KeepComing. Running it means I own every part, from architecture and billing to what happens when something breaks in production. That shapes how I write code for any team.
Open to conversations