Open to opportunities

maher s

@mahers

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Full-stack developer at TopTalla building a Saudi ZATCA e-invoicing flow and marketplace apps.

Turkey

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At TopTalla, I work with a small team across a Strapi API, a Next.js marketplace, and two Ionic and Capacitor apps for customers and salons. I built the backend flow for Saudi ZATCA e-invoicing, including invoice XML, QR and TLV encoding, signing, submission, and audit records.

I also work on bookings, checkout, POS, settlements, staff payments, wallets, vouchers, and refunds. I added WhatsApp notifications and Firebase push for booking updates, and ship the salon app to iOS and Android from one Ionic codebase with receipt printing and barcode scanning.

At EC-Markt, I developed backend microservices for a multi-vendor marketplace and built its React Native app on REST and gRPC APIs. I also ran Docker and Kubernetes infrastructure with GitLab CI, and rebuilt the marketplace frontend in Next.js, TypeScript, and MUI.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

TopTalla

Jan 2025 - Present (1 year 9 months)

Worked on a Strapi API, a Next.js marketplace, and two Ionic and Capacitor apps. Built the Saudi ZATCA e-invoicing flow and handled backend features including bookings, checkout, POS, settlements, wallets, and refunds.

Strapi Next.js Ionic Capacitor ZATCA PostgreSQL Redis Docker Sentry Firebase WhatsApp API

Full-Stack Developer

Ranvals Software

Jul 2024 - Jan 2025 (6 months)

Customised Odoo ERP modules in Python and designed schemas and SQL for client reports on PostgreSQL and MySQL.

Odoo Python PostgreSQL MySQL SQL

Full-Stack Developer

EC-Markt

Jun 2022 - Jan 2024 (1 year 7 months)

Developed backend for a multi-vendor marketplace using NestJS with MongoDB and MySQL, split into microservices. Managed infrastructure with Docker, Kubernetes, and GitLab CI, and built the React Native app.

NestJS MongoDB MySQL Docker Kubernetes Gitlab CI React Native REST gRPC

Frontend Developer

EC-Markt

May 2022 - Nov 2022 (6 months)

Rebuilt the marketplace front end in Next.js, TypeScript, and MUI, and reworked the component structure to improve page load times.

Next.js TypeScript MUI React

Full-Stack Developer

Freelance

Jan 2021 - Jul 2022 (1 year 6 months)

Delivered web projects from start to finish, including React and Next.js front ends, Node and Express APIs, and MongoDB or MySQL databases, hosted on AWS or DigitalOcean.

React Next.js NodeJS Express MongoDB MySQL AWS DigitalOcean