Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

Full Stack Engineer with 4+ years building Node.js/NestJS and React/Next.js SaaS platforms across e-commerce and hospitality. Delivered a 70-module B2B e-commerce platform with idempotent order processing, distributed locking, and CASL authorization, plus a real-time PMS/OTA system integrated with Booking.com, Expedia, and SiteMinder. Known for code quality and technical mentoring, reducing production response time by up to 50% and reviewing 1,000+ pull requests. Experienced in integration-heavy systems, resilient event-driven architectures (BullMQ/Redis), and performance/security best practices from API design to the React back-office.…Full Stack Engineer with 4+ years building Node.js/NestJS and React/Next.js SaaS platforms across e-commerce and hospitality. Delivered a 70-module B2B e-commerce platform with idempotent order processing, distributed locking, and CASL authorization, plus a real-time PMS/OTA system integrated with Booking.com, Expedia, and SiteMinder. Known for code quality and technical mentoring, reducing production response time by up to 50% and reviewing 1,000+ pull requests. Experienced in integration-heavy systems, resilient event-driven architectures (BullMQ/Redis), and performance/security best practices from API design to the React back-office.

Hazem Mejri

Full Stack Developer, Web Developer, Back-End Developer, +2





Full Stack Engineer with 4+ years building Node.js/NestJS and React/Next.js SaaS platforms across e-commerce and hospitality. Delivered a 70-module B2B e-commerce platform with idempotent order processing, distributed locking, and CASL authorization, plus a real-time PMS/OTA system integrated with Booking.com, Expedia, and SiteMinder. Known for code quality and technical mentoring, reducing production response time by up to 50% and reviewing 1,000+ pull requests. Experienced in integration-heavy systems, resilient event-driven architectures (BullMQ/Redis), and performance/security best practices from API design to the React back-office.…Full Stack Engineer with 4+ years building Node.js/NestJS and React/Next.js SaaS platforms across e-commerce and hospitality. Delivered a 70-module B2B e-commerce platform with idempotent order processing, distributed locking, and CASL authorization, plus a real-time PMS/OTA system integrated with Booking.com, Expedia, and SiteMinder. Known for code quality and technical mentoring, reducing production response time by up to 50% and reviewing 1,000+ pull requests. Experienced in integration-heavy systems, resilient event-driven architectures (BullMQ/Redis), and performance/security best practices from API design to the React back-office.

Available to hire

Full Stack Engineer with 4+ years building Node.js/NestJS and React/Next.js SaaS platforms across e-commerce and hospitality. Delivered a 70-module B2B e-commerce platform with idempotent order processing, distributed locking, and CASL authorization, plus a real-time PMS/OTA system integrated with Booking.com, Expedia, and SiteMinder.

Known for code quality and technical mentoring, reducing production response time by up to 50% and reviewing 1,000+ pull requests. Experienced in integration-heavy systems, resilient event-driven architectures (BullMQ/Redis), and performance/security best practices from API design to the React back-office.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

French

Fluent

Arabic

Fluent

Work Experience

Full Stack Engineer at Auvelisse Portugal

February 1, 2026 - Present

Designed and developed a large-scale, integration-heavy hospitality PMS & OTA distribution platform using NestJS and React (TypeScript, PostgreSQL). Built a provider-agnostic OTA integration engine and a canonical reservation model to normalize heterogeneous OTA payloads (XML + REST/JSON). Implemented the full reservation lifecycle including bookings, modifications, cancellations, multi-stays, and fee calculation with atomic transactions and deduplication to prevent duplicate bookings, plus availability synchronization to avoid overbooking. Engineered resilient asynchronous backend services using BullMQ/Redis/TypeORM with a queue-offload pattern for fast inbound API responses, retries, and failure handling. Applied test-first (TDD) practices with Jest to reach ~80% test coverage on core reservation logic.

Full Stack Engineer at Anypli

February 1, 2023 - Present

Designed and developed Tejer, a B2B e-commerce platform (NestJS API + React back-office) organized into ~70 business modules using a controller–service–repository architecture. Engineered idempotent, queue-based order processing (Bull + Redis) with a custom transactional decorator and distributed locking (Redis mutex) to safely serialize concurrent mutations across a PM2 cluster. Implemented CASL-based fine-grained policy authorization and dual authentication (staff & API clients) with JWT access/refresh rotation and OTP via SMS. Built a React back-office using Redux Toolkit/RTK Query with server DTO isolation and single-flight JWT refresh; applied code splitting and memoization to reduce memory usage by 33%, and led a workshop on React table virtualization. Modeled relational entities with TypeORM and optimized queries using targeted/full-text indexes and Redis cache-aside to reduce production response time by 50%. Exposed versioned partner-facing public APIs with isolated JWT a

Full Stack Engineer at VAERDIA

November 1, 2022 - February 1, 2023

Developed the interface of a reactive CRM in React/TypeScript with Tailwind CSS for an interactive user experience. Set up a modular NestJS boilerplate (Docker, Redis, AWS S3/MinIO) to standardize new projects and improve maintainability.