LH.
AI ENGINEER · BACKEND DEVELOPER

Buildingintelligentsystemsthatship.

AI Engineering student at ENSIA. Specializing in high-performance RAG pipelines, Arabic NLP systems, and robust full-stack software—proven across 5+ production internships.

0InternshipsWork History
0HackathonTop-3s
0SystemsDeployed in Prod
0CountriesReached
Employment History

Seniority Above Expectation.

5+ production-grade internships executing mission-critical software. Bridging academic excellence with industrial-scale systems.

AI/Software Engineer Intern@ Command Strategy Advisory

Oct 2025 – PresentRemote, Paris

Client software tools for financial consultants. Production REST API backends.

  • Engineered client-facing software tools in C# (.NET), translating requirements from financial consultants into production-deployable REST API solutions across 3+ active client engagements.
  • Reduced manual reporting turnaround by ~40% by automating data workflows with reusable .NET backend modules, improving consultant decision-making pipelines.
Stack:C#.NETREST API

AI/Software Engineer Intern@ Ministry of Higher Education & Scientific Research

Jun 2025 – Nov 2025Ben Aknoun, Algiers, Algeria

AI/Software Engineer Intern@ Holding Algeria Chemical Specialities (ACS – ENAP)

Jul – Sep 2025Lakhdaria, Bouira, Algeria

AI/Software Engineer Intern@ Ministry of Vocational Training and Education

Sep – Oct 2025Ben Aknoun, Algiers, Algeria

Software Engineer & Design Lead@ K2A Auto

Jul – Nov 2025Remote (Contract)

Artificial Intelligence Intern@ Thynk Tech DZ

Jun – Aug 2024Algiers, Algeria
Technical Proof

Featured Systems.

No toy applications. Battle-tested RAG databases, E2E encrypted networks, and optimization pipelines compiled for extreme benchmarks.

NLP COURSE · #1 COHORT · 18.3/20

Algerian Legal GraphRAG Assistant

Bilingual (FR/AR) legal AI for Algerian law. GraphRAG with hybrid retrieval: vector + BM25 + knowledge graph traversal over the full legal corpus.

QueryVectorGraphAnswer
Knowledge Graph Traversal
FastAPIFAISSNetworkXLangChainLlama 3.3 70BReactTypeScript
PRODUCTION · GOVERNMENT

Arabic Government QA System

End-to-end Arabic NLP question-answering system. Semantic retrieval over 1,200+ official documents with <2s response latency.

USER
ما هي شروط القبول في سلك الدكتوراه؟
GOV-QA SYSTEM
يشترط التسجيل في الدكتوراه الحصول على شهادة الماستر بمعدل...القرار الوزاري رقم 12
AraBERT + FAISS Grounded Search
FastAPIAraBERTCAMeL ToolsFAISSReact

Operational Prototypes & Systems

Encrypted Chat Application

Cross-platform end-to-end encrypted messaging application with AES-256 and RSA key exchange, ensuring zero plaintext data storage.

FlutterDartAES-256RSA+1

Khfifa Freight Logistics

Mobile logistics application matching freight transport suppliers to clients across 3 Algerian wilayas within a tight 8-week schedule.

FlutterDartFigmaREST API

Algiers Airport Data Mining

Large-scale data analysis extracting passenger patterns and operational bottlenecks from over 50,000 passenger records.

PythonPandasscikit-learnPCA+1

Research

Academic contributions and ongoing research projects.

Algerian Dialect Diacritization — Dataset & Modeling

Paper in Preparation
ENSIA·Collaboration with Portland State University·Research Team Leader·Jan 2026 – Present

Co-leading construction of the first Algerian dialect diacritization corpus — 6,086 sentences with 95.2% character-level inter-annotator agreement, built via a 3-phase human annotation pipeline over LLM pre-annotation.

Benchmarking BiLSTM-CRF, AraBERT, MARBERT, and DziriBERT under MSA/dialect transfer-learning strategies.

Arabic NLPAlgerian DialectCorpus AnnotationTransfer LearningBiLSTM-CRFAraBERTMARBERTDziriBERTIAA
Expertise Mapping

Technological Breadth.

Professional stack covering low-level systems programming in Rust, large-scale semantic vector retrieval (RAG), and production-grade Web architectures.

Languages

PythonC# (.NET)TypeScriptRustDart

Backend & DevOps

FastAPI.NET CoreREST APIsPostgreSQLMongoDBDockerGitGitHub ActionsCI/CD

AI / ML

LangChainGraphRAGRAG SystemsArabic NLPFAISSChromaDBHugging FaceSentence Transformersscikit-learnTensorFlowNetworkX

Frontend

ReactNext.js 14/15TailwindCSSFramer Motion

Mobile

FlutterDart

Design

UI/UX DesignFigmaAdobe IllustratorPrototyping
Benchmarks & Credentials

Competitive Milestones.

Consistently outperforming baselines in high-pressure engineering events, national hackathons, and high-level academic evaluations.

Hackathon Top Finishes

InnovTech by Djezzy

National AI and technology challenge.

2nd Place

Junction X Algiers

Algiers edition of Europe's largest hackathon.

2nd Place

MobAI Hackathon

Mobile and AI fusion challenge.

2nd Place

DevCamp Hackathon

Intensive 48-hour development marathon.

3rd Place

AIFEST'23

Annual Artificial Intelligence Festival.

3rd Place

Academic Distinction

Academic NLP Project · ENSIA

Ranked #1 out of all cohorts for building a state-of-the-art Arabic legal GraphRAG system.

18.3/20 Grade
Behind the Code

Engineering Intelligence.

I am an Artificial Intelligence Engineering student at the National Higher School of Artificial Intelligence (ENSIA, Algeria). My focus is at the intersection of production software engineering and advanced natural language processing (NLP).

Throughout 5+ industrial internships, I have built and deployed systems for government ministries, financial consultancies, and SaaS startups. I don't just build models; I construct the semantic retrieval pipelines, data orchestrations, and high-performance backend infrastructures required to run them at scale under strict sub-second performance budgets.

Full-Stack Autonomy

Delivering end-to-end features across Next.js frontends, FastAPI/Rust routers, and relational databases.

Semantic AI & GraphRAG

Building robust vector, hybrid, and graph-based retrieval architectures to solve hallucinations.

Performance Budgets

Optimizing databases and pipelines to deliver <2s document queries under concurrent traffic.

Security-First Focus

Designing systems that respect encryption protocols and secure client-side database handshakes.

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Initiate Contact.

Ready to deploy features or hire dedicated backend capacity? Get in touch immediately. No automated routing. Direct response within 24 hours.

Direct Credentials

Email

lyes.hadjar.04@gmail.com

LinkedIn

lyes-hadjar

Typical AvailabilityMessages sent through this form bypass standard filters. I usually respond within 8-12 hours for contract proposals or formal engineering queries.