Open to opportunities

Mohamed Ali Kaddour

@mohamedalikaddour

Message

I build full-stack platforms and semantic search systems that improve product discovery and reliability.

Algeria

Message

At BuySell, I co-develop buysell.dz, a nationwide marketplace, contributing across frontend, backend, search, testing, and debugging within a four-developer team.

I designed its semantic search system with Weaviate, embedding models, and multi-stage retrieval, combining semantic and conventional search. I also built PostgreSQL-to-Weaviate synchronization with Kafka and Debezium, WAL recovery, monitoring, and Redis caching.

Previously at Intaj Mohtawayat, I led a real estate platform with interactive maps and advanced filtering, and delivered enterprise Q&A and complaints-management applications with RBAC, JWT-secured APIs, PostgreSQL, and analytics. I also redesigned subscription renewal workflows for a 66x testing speedup.

Outside client work, I launched Course Algérie, a national running-race platform reaching approximately 3,500–5,000 monthly visitors, and I design production-focused multi-tenant platform architecture. I also research and build across streaming, video moderation, and 3D game environments.

Experience

Work history, roles, and key accomplishments

Current

Full-Stack Developer

Current

BuySell

Nov 2025 - Present (11 months)

Co-developed and maintained buysell.dz, a nationwide generalist marketplace, as part of a 4-developer team. Designed and implemented the semantic search system using Weaviate, embedding models, and multi-stage retrieval, and built the PostgreSQL-to-Weaviate synchronization pipeline with Kafka and Debezium.

TypeScript JavaScript Next.js React Tailwind NestJS NodeJS ExpressJS REST APIs WebSockets Weaviate Vector Search Semantic Search Embedding models PostgreSQL Redis Kafka Debezium Docker Linux Nginx Git GitHub

Technico-Functional Consultant

Kepler Technologies

Jul 2025 - Oct 2025 (3 months)

Completed specialized training in Jira administration and customization, using plugins and scripting capabilities to deliver tailored solutions for client requirements. Developed a Python parsing tool using compiler concepts such as tokenization and syntax parsing to detect nested arithmetic expressions, insert type conversions, and generate audit logs.

Jira Python Tokenization Syntax Parsing Compiler Concepts Audit Logs

Full-Stack Developer

Intaj Mohtawayat

Nov 2024 - Jul 2025 (8 months)

Led the development of a real estate platform with advanced filtering and interactive maps using React, Express, Tailwind CSS, and Leaflet. Designed and deployed two enterprise applications: a cross-platform Q&A platform and a complaints management system featuring RBAC, JWT-secured APIs, PostgreSQL, and analytics.

React Express Tailwind Leaflet RBAC JWT PostgreSQL Meilisearch Git GitHub Swagger Windows Server IIS

Software Engineer Intern

EPTV (Algerian Public Television)

Feb 2024 - Jul 2024 (5 months)

Researched video content moderation using deep learning, focusing on CNN-based detection of explicit content in video. Achieved 99% classification accuracy on large datasets and open-sourced the project on GitHub.

Deep Learning CNN Video Content Moderation GitHub