Resume
Mahrez Benhamad
Senior Software Engineer & Technical Lead | Top 50 Tunisian Stack Overflow Contributor (2.2M+ views)
Executive Summary
6+ years leading backend systems through their hardest transitions, from decade-old Django monoliths to event-driven microservices running real production load. Deep expertise in RESTful API design, DevOps pipelines, and integrating high-stakes third-party platforms (Meta, TikTok, Google, Stripe). Track record of cutting latency, eliminating operational toil, and raising engineering standards across every team.
Technical Skills
System Design & Architecture
DevOps & CI/CD
Cloud Platforms
Programming Languages
Frameworks & Libraries
OS, Tools & Observability
Database Systems (DBMS)
API & Integrations
Security & Compliance
Work Experience
Neopolis Development Nabeul, Tunisia
Senior Software Engineer & Technical Lead Sep 2024 – Present
- Legacy Modernization Strategy: Orchestrated a high-risk legacy modernization, upgrading a core enterprise monolith from Django 1.1 to 4.2.16, eliminating over a decade of accumulated technical debt and decoupling brittle dependencies, all while maintaining 100% API contract compatibility for legacy clients.
- Database & Performance Tuning: Slashed average API latency by 60% (500ms to 200ms) by implementing multi-layer caching (Redis) and optimizing Database Interaction Layers to resolve N+1 query bottlenecks.
- Digital Product Engineering: Architected a secure, multi-tenant React platform powering end-to-end insurance subscription flows “Quote-to-Subscription”, from real-time quote generation to compliance validation, replacing a fully manual, paper-based subscription process.
- Event-Driven Architecture: Decoupled blocking I/O operations by architecting an Asynchronous Task Queue system using Python and Celery/Redis, scaling throughput to 10,000+ daily transactions with systematic retry mechanisms.
- DevOps Transformation: Replaced manual release processes with a fully streamlined CI/CD pipeline. Reduced deployment time by 85% (2 hours to 20 minutes) and enabled zero-downtime rolling updates via Container Orchestration (Docker Swarm).
- Observability: Architected a centralized monitoring ecosystem (Sentry for error tracking alongside the LGTM Stack) integrated with automated failover systems.
- Security Hardening: Audited and remediated infrastructure configurations, mitigating 15+ critical vulnerabilities and reducing misconfiguration rates by 70% across staging and production.
ILEF EXPORT Tunis, Tunisia
Platform & Infrastructure Engineer (Contract) Mar 2024 – Jul 2024
- Multi-Cloud Orchestration: Built a unified provisioning dashboard integrating APIs from AWS, Azure, GCP, and Hetzner. Standardized infrastructure deployment for 20+ environments, abstracting provider complexity for development teams.
- Infrastructure as Code (IaC): Orchestrated full-stack environment delivery by implementing IaC pipelines (Ansible Playbooks), reducing provisioning time for multi-node clusters from hours to under 12 minutes.
- Security & Compliance: Architected a centralized secrets management strategy using HashiCorp Vault. Secured 100+ CI/CD credentials and artifacts, eliminating hardcoded secrets to meet rigorous security audit standards.
Certishopping Tunis, Tunisia
Full-Stack Developer Feb 2020 – Mar 2024
Engineered a production Machine Learning pipeline using Python and Scikit-learn to process 750K+ reviews at 82% accuracy, driving a direct promotion from an Intern (Feb–Jul 2020) to Full-Stack Developer.
- API Architecture & Integration: Designed scalable RESTful APIs, maintaining 99.9% availability over 3 years. Constructed robust data ingestion pipelines for major third-party platforms (Google, Meta, TikTok) to process real-time marketing analytics data.
- Centralized Observability: Deployed an ELK Stack logging infrastructure with real-time Prometheus alerting, reducing production issue detection time by 60% (30 to 12 minutes).
- Technical Leadership: Mentored a team of 5 developers by conducting code reviews and implementing strict Clean Code standards, significantly reducing technical debt and improving maintainability.
- Release Engineering: Overhauled the CI/CD workflow, streamlining testing and deployment stages to shorten release cycles by 70% (2 days to 14 hours).
- Disaster Recovery: Architected a scheduled backup strategy using Cloud Object Storage (S3) with integrity verification, guaranteeing 100% data recoverability for critical business assets.
Key Projects
MedService Media Automation Jul 2021 – Apr 2024
- Distributed Architecture: Built a scalable RPA (Robotic Process Automation) system using Python and Selenium on Docker, managing high-volume interactions for healthcare campaigns.
- Resilience & Uptime: Built a fault-tolerant "Headless" browser grid with self-healing API fallback mechanisms, improving system uptime by 35% during third-party platform outages.
- Business Impact: Programmatically executed 1,500+ monthly workflows, reducing manual operational load by 40% (20+ hours/week) and enabling strategic focus for 100+ clients.
Green IoT Platform Jan 2021 – Mar 2021
Repository: github.com/MahrezBH/green-iot
- Platform Architecture: Designed and built a full-featured Django-based IoT device management platform supporting real-time telemetry ingestion, device registration, and remote configuration.
- Containerized Deployment: Deployed the full stack with containerized services (Docker + Nginx), enabling reproducible environments, zero-downtime restarts, and simplified horizontal scaling.
- Open-Source Recognition: The project gained open-source traction and was forked by Holden Karau (Apache Spark PMC member and O'Reilly author), validating production-grade code quality.
Education
The Private Higher School of Engineering and Technology (ESPRIT) Tunis, Tunisia
Master of Engineering in Cloud Computing Sep 2020 – Jul 2024
Higher Institute of Computer Science and Mathematics (ISIMM) Monastir, Tunisia
Bachelor of Science in Computer Science Sep 2016 – Jul 2020
Certifications
- Green Digital Skills Graduate — INCO Academy Issued: Oct 2025
- Docker Foundations Professional Issued: Apr 2025
- Scrum Master Certified (SMC) — SCRUMstudy Issued: Oct 2023