About Marwen
About Me:
A Software Engineer with 5 years of experience building backend and full-stack systems using Python, PHP, and React.js. Experienced in designing APIs, cloud services, and distributed systems. Recently working on cloud-based energy management infrastructure and AI-related systems involving embeddings, vector databases, and LLM-based workflows. Focused on building reliable systems, clean architectures, and scalable services.
Key Skills :
Key Skills
Languages & Frameworks
Python (FastAPI, Flask, Django), PHP (Laravel, Symfony), React.js
Backend Development
FastAPI, Flask, Django, REST APIs, Microservices
Frontend Development
React.js
AI & Data Systems
LLM integrations (OpenAI APIs), embeddings, vector databases (pgvector), AI-assisted workflows
Cloud & Infrastructure
AWS (EC2, RDS, Cognito), Azure, Docker, Kubernetes
DevOps
Git, GitHub Actions, Terraform, CI/CD pipelines
Databases
PostgreSQL, MySQL, SQL, pgvector
Other
API integrations, Web scraping, System migrations, Distributed systems
Why Work With Me
I focus on building reliable backend systems and scalable cloud services. My work combines backend engineering, cloud infrastructure, and modern AI integrations when needed to deliver practical solutions aligned with project requirements.
Let's Connect
Feel free to reach out to discuss your project.
English
Native or bilingual
French
Fluent
Can work on-site
Rotterdam (up to 50km)
Experience
- FreelanceSoftware EngineerDIGITAL AND ITNovember 2024 - Today (1 year and 7 months)Amsterdam, Netherlands-Developed and optimized FastAPI backend services for Accuselect’s cloud-based Energy Management System (EMS) controlling batteries cloud-to-cloud.-Built an MVP cloud gateway to integrate a new battery brand, enabling seamless remote control via MQTT and cloud APIs.-Led migration of databases and AKS clusters to Azure, enhancing scalability and system performance for battery management.-Implemented Docker containerization and Kubernetes orchestration to ensure reliable deployments and high system availability.-Collaborated closely with the team to improve EMS efficiency, stability, and multi-brand battery support.
- FreelanceSoftware engineerDIGITAL AND ITDecember 2023 - October 2024 (11 months)Amsterdam, Netherlands-Enhanced property management system features using PHP (Laravel) and React.js based on client requirements.-Conducted feasibility and business impact analysis with stakeholders prior to development.-Improved system performance using AWS (Vapor Laravel) and microservices architecture.-Designed and developed inventory and ordering systems using FastAPI and React.js.-Integrated AWS Cognito for authentication and deployed solutions on AWS EC2 for scalability.
- NEOSoftware EngineerDIGITAL AND ITOctober 2022 - October 2023 (1 year)Amersfoort, Netherlands-Integrated AWS Cognito for centralized user management, enhancing security.-Developed an admin dashboard with Flask and React for client onboarding.-Maintained and updated rooftop solar potential tool to ensure reliability and compliance.-Refactored legacy code for scalability and improved system performance.-Collaborated with GEO specialists on release management and service updates.-Managed API services for solar panel, tree, and building data.
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Education
- Master Degree in Computer ScienceESPRIT2020