Freelancer profile translated to English.
Back to original languageAbout Rejeb
🚀 CTO, Solution Architect & Full-Stack Developer – AWS | Web3 | IoT | Blockchain | Cloud Native
As CTO and co-founder of several tech projects, I help companies transform their ideas into high-performing, reliable, and scalable digital products.
My approach combines strategic vision, solid technical architecture, and agile execution to ensure rapid time-to-market and sustainable growth.
👨💻 With over 15 years of experience in development and technical leadership, I am involved in:
Design of serverless and cloud-native architectures (AWS Lambda, API Gateway, DynamoDB, S3, CloudFront, etc.)
Full-stack development (Vue.js, Nuxt, React, TypeScript, Node.js, Python)
Implementation of DevOps & CI/CD strategies (Terraform, GitHub Actions, AWS CodePipeline)
IoT & blockchain (Web3) projects: smart contracts, tokenomics, traceability, DeFi integration
Technical management & product support: roadmap, prioritization, code review, team mentoring
🎯 My mission: to help startups and scale-ups structure their tech vision, accelerate product development, and industrialize their infrastructure.
I act as either an outsourced CTO or a senior AWS / cloud architecture consultant on high-impact missions.
💬 Approach: transparent, results-oriented, and business-focused.
📅 Available for one-off missions, long-term support, or technical project scoping.
French
Native or bilingual
English
Fluent
Arabic
Native or bilingual
Can work on-site
Paris (up to 50km)
Experience
- BEEPINGSCTOINTERNET OF THINGS (IOT)January 2025 - Today (1 year and 7 months)Paris, FranceAs CTO, I led the complete redesign (V3) of the Beepings platform, from the design of the AWS cloud infrastructure to application development.Implementation of a modular, secure, and highly scalable architecture, integrating IoT, geolocation, and real-time data processing.Management of technical teams, definition of quality standards, and implementation of an automated CI/CD pipeline to accelerate deployments.
- CONNECTIFYCTO & Co-founderINTERNET OF THINGS (IOT)January 2024 - Today (2 years and 7 months)Paris, FranceAs CTO and co-founder of Connectify, I lead the technological vision and overall architecture of an innovative IoT platform connecting millions of devices via the cloud.The goal: enable intelligent, real-time traceability of connected objects, while tokenizing data via blockchain to create new value models.🎯 Roles & ResponsibilitiesDefinition of technical and product strategy, aligned with business and innovation objectives.Design of a 100% serverless architecture on AWS (Lambda, API Gateway, DynamoDB, S3, Glue, CloudFront).Development of a secure and scalable IoT ecosystem: massive data ingestion, geolocation, multi-device synchronization.Integration of blockchain mechanisms (Web3) for data traceability and authentication (smart contracts, NFTs, tokenomics).Implementation of a complete CI/CD infrastructure with Terraform, GitHub Actions, and cloud cost monitoring.Technical leadership of a multidisciplinary team (front-end, back-end, data engineers) and strategic code review.Collaboration with business teams to transform product vision into operational solutions.⚙️ Key Stack & TechnologiesAWS (Lambda, DynamoDB, S3, Glue, SNS, CloudWatch, API Gateway) • Terraform • TypeScript • Node.js • Python • Vue 3 / Nuxt 4 • Web3.js / Ethers.js • Solidity • Hardhat • IoT Core • Mapbox
- Ministère de l'intérieurSolution Architect / Technical Expert Vue 3PUBLIC SECTORJuly 2022 - Today (4 years and 1 month)Paris, FranceEnsure digital transformation within the Ministry of the Interior by working on various projects.- Implement a solid, scalable project architecture- Manage a front-end development team- Manage a back-end development team- Work in collaboration with the PO, PM, Designer,- Lead internal training to upskill various front-end and back-end teams.
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Education
- Computer Science Bachelor's DegreeInstitut Galilée Engineering School2009
- Master 2 Informatique ACSISUniversité de Versailles Saint-Quentin-en-Yvelines, UFR des sciences.2011
Certifications
- Getting Started with Google Kubernetes EngineGoogle Cloud2019
- Google Cloud Platform Big Data and Machine Learning FundamentalsGoogle Cloud2020