salah kacem

At L-mobile, I deliver customer-specific features for warehouse operations and ERP integration, from discovery and estimates through testing and production installation. I’ve shipped more than 50 features and change requests in C#/.NET for European clients.

I improved SQL performance by addressing an N+1 pattern that caused more than 6,000 database calls for around 3,000 orders. I also removed non-indexable string operations from SQL join conditions, with the fix merged into a shared base class.

I redesigned a RabbitMQ label-printing integration to use one fixed exchange with routing keys, then coordinated testing and production rollout with the client’s IT team. I’ve also handled production support, including diagnosing an Oracle unique-constraint race condition and recommending a database sequence.

Since August 2025, I’ve taken on technical lead responsibilities, including code reviews, mentoring, architecture decisions, sprint planning and effort estimation. Earlier, at Vibracom, I built an e-learning platform with Laravel, React and MySQL, and integrated Zoom and PayPal APIs.