Full-Stack Product Engineer

I build software that solves real business problems.

From complex SaaS platforms and business workflows to reliable APIs and production infrastructure, I turn requirements into software that works in the real world.

Explore My WorkLet's Discuss Your Project
  • SaaS & Product Development
  • Complex Business Systems
  • APIs & Integrations
  • Production Engineering
Moataz Bahaa, Full-Stack Product Engineer

Moataz Bahaa

Full-Stack Product Engineer

Available

Selected work

Projects that show end-to-end ownership

Flagship case studies from SaaS infrastructure, manufacturing operations, and enterprise quality workflows — followed by additional shipped work.

Inframail logoBrand mark
Email Infrastructure / SaaSFull Stack Engineer

Automating complex email infrastructure workflows.

Problem: Businesses need reliable domains, DNS authentication, hosting, and mailbox provisioning without brittle manual setup.

Contribution: Owned and improved end-to-end workflows spanning product UI, DNS/email authentication automation, and operational integrations.

ReactNext.jsTypeScriptSupabaseDNS
Bunyax product interface
ERP / Manufacturing OperationsFull Stack Developer

Connecting procurement, production, and inventory in one operational platform.

Problem: Manufacturing teams need procurement, production, inventory, and quality data to stay consistent across departments — not scattered across spreadsheets and disconnected tools.

Contribution: Built full-stack capabilities across identity, procurement, production, logistics, quality, and reporting on NestJS and Next.js.

NestJSNext.jsPrismaMySQLSwagger
Emtethal logoBrand mark
Quality Management / Enterprise SaaSFull Stack Developer

Engineering reliable quality and inspection workflows.

Problem: Organizations need managers and field officers to schedule visits, complete regulated checklists, and report consistently across complex org hierarchies and languages.

Contribution: Build responsive React UIs and Django-backed workflows for checklists, visits, roles, bidding, packages, and i18n.

ReactTypeScriptTailwind CSSDjangoDjango Rest Framework

More work

Operations ERP

Enterprise Resource Planning (ERP) Frontend

Web client for an ERP covering employees, projects, and repository management.

ReactTypeScriptReduxSCSS
View live

E-learning

ChemBakr

Teacher dashboard for videos, courses, subscriptions, and articles.

ReactTypeScriptNode.jsMongoDB
View live

E-learning API

Alashank E-learning Platform

API layer for teachers, courses, exams, assignments, and structured learning content.

Node.jsExpressMySQLPrisma
View live

B2B Mobile Commerce

Mashrobak

React Native app for merchants ordering from a single drinks supplier.

React NativeFirebaseRedux
View live

Marketplace

G2level

Global marketplace for game items and accounts with real-time chat and admin tooling.

ReactTypeScriptReduxSocket.io

Accounting Analytics

Acies-Co Accounting Software

Import CSV or Xero/QuickBooks data, then explore business metrics with interactive charts.

ReactTypeScriptChakra UIChart.js

Healthcare Platform

Codoctor

Backend for a patient–doctor app: payments, reviews, chat, auth, and diagnosis-related endpoints.

Node.jsExpressMySQLPrisma

Personal Project

Movies App

Firebase-auth SPA for sign-up, profiles, movie search, and trailer playback.

ReactFirebaseCSSAxios
View live

Capabilities

How I approach complex product work

The same patterns show up across SaaS, ERP, and enterprise systems: clear architecture, careful business logic, and software that holds up in production.

01

System design and architecture

I design practical architectures that match the problem — clear boundaries, sensible data models, and room to grow without unnecessary complexity.

02

Full-stack product development

I ship features end to end across UI, APIs, databases, and deployment so product work stays coherent from request to release.

03

Third-party integrations and automation

I connect external services, automate operational workflows, and keep integrations observable when real-world systems misbehave.

04

Production reliability and maintainability

I care about auth, data integrity, background jobs, and code that teammates can review, debug, and extend months later.

05

Database design and business logic

I model domain relationships carefully so procurement, inspections, billing, or inventory stay consistent under real usage.

06

Collaboration and technical decisions

I work with stakeholders and engineers to clarify requirements, trade off options, and document decisions that keep delivery moving.

Experience

An engineering story of ownership and delivery

Roles where I contributed across the stack — from email infrastructure and quality management SaaS to client product work on Upwork and independent projects.

  1. Full Stack Engineer

    Inframail

    October 2023 – Present

    Contribute to development, maintenance, and enhancement of email infrastructure product workflows for business outreach and email management. Automated email processes including SPF, DKIM, and DMARC record management, reducing manual setup time by 90%. Collaborate with cross-functional teams to deliver features and resolve bugs for high-quality releases.

    ReactNext.jsTypeScriptSupabaseDNSEmail ProtocolsWHMCScPanelHestiaDomain Resellers

  2. Full Stack Developer

    Emtethal

    16 Feb 2025 – Present

    Full-stack development for Emtethal, a SaaS quality management system based on government regulations. Build responsive UIs and workflows where managers create checklists and schedule visits for officers, who inspect target locations (hotels, restaurants, and similar establishments) and complete checklists according to regulations. The platform includes bidding, packages, multi-user roles, and multi-language support.

    DjangoDjango Rest FrameworkPostgreSQLTypeScriptReactTailwind CSS

  3. Full Stack Engineer

    Freelancer — Upwork

    2021 – October 2023

    Delivered 7+ freelance projects with a 95%+ client satisfaction rate, developing and maintaining web applications tailored to client needs. Worked closely with clients to gather requirements, provide technical guidance, and deliver within budget. Designed backend systems with Node.js, Express, MySQL, and MongoDB; integrated payment gateways and real-time features with WebSockets.

    Node.jsExpress.jsMySQLMongoDBReactTypeScriptWebSocketPayment Gateways

  4. Freelance Full Stack Developer

    Independent

    2022 – Present

    Deliver frontend and backend work across ERP, e-learning, mobile commerce, and API products. Design and implement UIs with React, TypeScript, and modern component libraries; build REST APIs with authentication, Prisma-backed data layers, Dockerized services, and integrations with client frontends.

    ReactNext.jsTypeScriptNode.jsExpress.jsPrismaPostgreSQLMySQLMongoDBDockerJWT

How I work

A practical path from problem to production

Not a rigid methodology — a repeatable way to clarify intent, design carefully, ship end to end, and improve what lands in production.

01

Understand the business problem

Start with who the software serves, what outcome matters, and which constraints are non-negotiable.

02

Clarify requirements and edge cases

Surface ambiguous rules early — roles, states, failure modes, and the paths users actually take.

03

Design an appropriate architecture

Choose structures that fit the domain: APIs, data models, integrations, and UI flows that stay maintainable.

04

Implement the feature end to end

Build across the stack so frontend, backend, and operational pieces land as one coherent change.

05

Test, review, and validate

Verify behavior against real scenarios, review for clarity, and tighten anything that will create friction later.

06

Deploy, monitor, and iterate

Ship carefully, watch what happens in production, and improve based on feedback and operational signals.

Skills & technologies

Tools I use where the work demands them

Organized by how they show up in real products — not a logo wall or proficiency percentages.

Frontend

ReactNext.jsTypeScriptTailwind CSSRedux

Backend

Node.jsNestJSExpressDjangoREST APIs

Databases

PostgreSQLMySQLSQL & schema designPrismaMongoDB (limited)

Infrastructure

DockerLinux / VPSDeploymentBackground jobsCI/CD

Integrations

Authentication & authorizationEmail / DNS servicesExternal APIsPayment gatewaysSupabase / Firebase

Engineering practices

Clean codeCode reviewDebuggingTestingMaintainabilityPragmatic AI-assisted development

Contact

Let's discuss your project

Whether you need a SaaS build, a complex feature, an integration, or ongoing full-stack support — tell me what you're trying to ship.

  • Building a SaaS product
  • Developing a complex feature
  • Integrating external services
  • Improving an existing application
  • Ongoing full-stack engineering support
moatazbahaa20@gmail.com+201006239271
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