Description

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.

Industry field of expertise

Languages

French
Fluent
English
Fluent

Workplace preferences

Can work on-site

Paris (up to 50km)

💻IBM
Senior Full-Stack Engineer (React/Python)
BIOTECH
September 2024 - Today (1 year and 9 months)
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
TELECOMMUNICATIONS
January 2022 - October 2024 (2 years and 9 months)
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)
RAW MATERIALS INDUSTRY
September 2019 - December 2021 (2 years and 3 months)
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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Master 2 in Computer Science and AI
Université Cergy Paris, Evry
2021
Focus on distributed algorithms, machine learning, and data processing.

Hatim I.

Senior Backend Engineer (Python/AWS) | Future Arch

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