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Hatim I.HI

Hatim I.

Senior Backend Engineer (Python/AWS) | Future Arch

560 €/jour
Paris, FR
3-7 ans

Délai de réponse moyen : 1h

À propos de Hatim

6+ years building web applications and scalable systems (React, Python/FastAPI,
AWS, Kubernetes). Contributed to generative AI products (RAG systems with
LangChain, Pinecone). Increasingly interested in LLMs and AI-powered
applications.
  • Français

    Capacité professionnelle complète

  • Anglais

    Capacité professionnelle complète

Accepte de travailler sur site
Paris (jusqu’à 50 km)

Expériences

  • 💻IBM
    Senior Full-Stack Engineer (React/Python)
    BIOTECHNOLOGIES
    septembre 2024 - Aujourd'hui (1 an et 9 mois)
    Paris, France
    Hospital Operations Portal (AP-HP, Public Hospitals of France)
    ● Care Path Management: Designed and built an end-to-end Care Path
    Management MVP that enables doctors to define patient care paths
    as scheduled actions, with automated SMS/email notifications and
    real-time tracking; delivered autonomously through Agile iterations,
    bi-weekly clinician validation, and GitLab CI/CD.
    ● WikiGPT: Built the React chat UI and scalable ingestion/query
    pipelines for AP-HP’s RAG “WikiGPT,” transforming multi-source
    content and queries into embeddings, and collaborating with data
    scientists and architects on vector retrieval and LLM responses.
    Tech Stack: Python(FastAPI), React, Next.js, Tailwind CSS,PostgreSQL, Docker,
    Kubernetes, GitLab CI/CD, OVH Cloud, LangChain, Pinecone.
    React.js Docker FastAPI Gitlab CI/CD Langchain
  • Backend & Cloud Engineer (FastAPI/AWS)
    Full-stack Developer
    TÉLÉCOMMUNICATIONS
    janvier 2022 - octobre 2024 (2 ans et 9 mois)
    Paris, France
    Key backend engineer on a cloud-native SMS gateway platform, responsible
    for high-volume MT/MO message delivery, operator integrations, and full
    delivery auditability, working closely with the Tech Lead to design, scale,
    and operate the system on AWS.


    ● Telecom Integrations (SMPP / HTTP): Onboarded and operated mobile
    operators and SMS aggregators on an existing SMPP/HTTP SMS
    gateway, handling MT/MO traffic, multi-session connectivity, short codes
    and keywords, DLR processing, rate limiting, and retries.
    ● Message Correlation & Audit Enhancements: Added Redis-based
    message correlation and Kafka-driven audit streams, enabling fast
    MT/MO lifecycle tracking and operational observability while retaining
    asynchronous queues per operator and shortcode.
    ● Operational Observability & Scalable SMS Processing: Enhanced SMS
    observability and scalability by centralizing logs in AWS CloudWatch,
    investigating undelivered messages and queue back-pressure via alerts,
    and deploying containerized workers on EKS for automated horizontal
    scaling.
    ● Team Leadership & Mentorship: Right hand to the Tech Lead, mentoring
    three junior engineers, reviewing code, delegating Agile tasks, and
    guiding the team on SMS integrations, troubleshooting, and operational
    best practices.

    Tech Stack: Python (FastAPI), C++, RabbitMQ, Kafka, PostgreSQL, Docker,
    Kubernetes, AWS (EKS, CloudWatch, S3, Fargate),Terraform , GitLab CI/CD,
    Prometheus, Nginx.
    Fast API C++ AWS React.js RabbitMQ
  • ISOAR
    Full-Stack Engineer (React/Express)
    INDUSTRIE MATIÈRES PREMIÈRES
    septembre 2019 - décembre 2021 (2 ans et 3 mois)
    Rungis, France
    Enhanced a legacy desktop ERP system with modern web and mobile
    applications, enabling real-time mobile operations and reducing manual
    paperwork.


    ● Mobile Workflow Modernization : Built a React/Next.js frontend
    allowing warehouse and production teams to scan barcodes, log
    inventory, photograph defects, and track shipments directly using
    GPS-enabled mobile devices—replacing error-prone paper-based
    processes.
    ● Backend Development: Built Node.js/Express APIs connecting mobile
    and web apps to the ERP SQL database, enabling real-time inventory and
    order updates.
    ● Startup Full-Stack Collaboration: Sole web developer in a 6-person
    startup, collaborating with C++ developers via daily standups and Agile
    sprints to deliver integrated features.
    ● Software Craftsmanship & Best Practices: Applied clean code and
    craftsmanship practices—SOLID, TDD/BDD, KISS/YAGNI, and
    collaborative SQL development for reliable, high-quality software.
    ● CI/CD & Deployment Automation: Designed GitHub Actions pipelines
    running automated tests, builds, and VM deployments with versioned
    releases and rollback support.


    Tech Stack: Node.js, Express.js, React, Next.js,GitHub Actions (CI/CD), Linux
    VMs, SQL (MySQL).
    Express.js React.js GitHub Actions (CI/CD

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Formations

  • Master 2 in Computer Science and AI
    Université Cergy Paris, Evry
    2021
    Focus on distributed algorithms, machine learning, and data processing.

Compétences

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