Skander Marnissi

🔹 Technical Lead – Société Générale

📍 Paris, France

As Technical Lead, I designed and delivered scalable, cost-efficient, and secure platforms while guiding a team of 10+ engineers. I combined solution architecture, cloud migration, DevOps enablement, and mentoring to drive both business impact and team growth.

✅ Highlights:

Cloud Migration & Cost Optimization: Led on-prem to Azure (AKS, Event Hubs, Functions) and AWS (EKS, S3, RDS) migration, cutting infra costs by 38% and improving reliability.

Event-Driven Platform: Built an event-driven system on Azure Event Hubs + Functions, reducing latency from 12s to 1.8s (-85%).

DevOps & Reliability: Standardized Kubernetes + GitOps, boosting deployment frequency 4×, cutting failed changes -70%, with <10min MTTR.

Security & Compliance: Delivered CI/CD blueprints with DevSecOps (SBOM, image scans, OIDC, least-privilege IAM/RBAC), reducing pipeline time -30%, critical vulns -90%, and achieving zero audit findings.

Leadership & Team Growth: Drove roadmap, reviews, and coaching for 10+ engineers → onboarding time 12 → 5 days, team throughput +25%.

Automation & Innovation: Automated critical workflows (saving hours weekly) and launched new internal tools via cross-team ideation.

✅ Stack & Skills:

Azure (AKS, Event Hubs, Functions), AWS (EKS, S3, RDS), Python (Flask, FastAPI), React, PostgreSQL, RabbitMQ, Kubernetes, GitOps, CI/CD, DevSecOps, Architecture, Cost Optimization, Mentoring, Agile & DevOps culture.

🔹 Senior Full Stack Engineer – OPEN (ANEF)

📍 Paris, France

✅ Role:

As a Senior Full Stack Engineer, I drove the end-to-end design and delivery of mission-critical applications for the French Ministry of the Interior (ANEF). I combined Angular expertise on the frontend with Python/Flask microservices on the backend, ensuring scalability, performance, and compliance with strict public-sector standards (GDPR, accessibility, security). My role extended beyond coding into architecture design, CI/CD automation, technical leadership, and knowledge sharing, consistently elevating both team efficiency and product quality.

✅ Key Achievements:

Frontend Excellence: Designed responsive, accessible Angular interfaces and a reusable UI component library, boosting user engagement (+20%) and reducing development time.

Backend Performance: Built microservices and optimized APIs in Python 3.11/Flask, cutting response times by up to 50% and reducing server usage by 40%.

System Reliability: Implemented CI/CD pipelines, automated regression testing, and code review processes, reducing bugs by 20–25% and deployment times by 40%.

Security & Compliance: Conducted security audits, enforced GDPR/WCAG standards, and ensured zero findings in audits.

Collaboration & Knowledge Sharing: Led refactoring initiatives, reduced technical debt by 40%, mentored teammates, and conducted internal tech talks to spread best practices.

Business Impact: Successfully integrated third-party services (biometrics, address autocomplete), enabling new features and driving measurable improvements in public service efficiency.

✅ Skills & Stack:

Frontend: Angular 14–16, Reusable Component Libraries, WCAG Accessibility

Backend: Python 3.11, Flask, Microservices, RESTful APIs, SQL Optimization

DevOps & Quality: CI/CD (GitLab, Jenkins), Automated Testing, Documentation Automation

Soft Skills: Technical Leadership, Knowledge Sharing, Agile Collaboration, Problem Solving

🔹 Technical Lead – Old Town Auto Muscat

📍 Muscat, Oman

As Technical Lead, I drove the full-cycle development of Old Town Auto Muscat’s corporate web application, creating a modern, secure, and scalable digital presence for one of Oman’s leading automotive service companies. I combined project planning, UX design, SEO content strategy, DevOps/Cloud deployment, and client training to deliver a robust solution aligned with both business and technical goals.

✅ Key Achievements:

Project Leadership: Defined project goals with stakeholders, coordinated roadmap, and ensured timely delivery.

UX & Design: Directed the creation of a responsive, user-friendly interface that boosted online engagement and reflected the company’s automotive expertise.

SEO & Content: Delivered optimized content, improving visibility on search engines and driving customer traffic.

Quality & Security: Established rigorous QA processes, introduced automated testing, and integrated DevSecOps practices (linting, vulnerability scanning, secure pipelines).

Cloud & Delivery: Deployed the web app on a cloud-native environment (Azure App Services + Azure SQL) with CI/CD pipelines, enabling fast and reliable releases.

Infrastructure as Code: Used GitOps workflows to standardize deployments and reduce configuration drift, ensuring consistency between staging and production.

Knowledge Transfer: Conducted training sessions for the client’s team, empowering them to manage and update content autonomously.

✅ Stack & Skills:

Frontend & Backend: Responsive Web (React/Angular), Python (Flask/FastAPI), Node.js

DevOps & Cloud: Azure (App Services, SQL, Storage), GitOps, CI/CD, Docker

Security & Quality: DevSecOps, Automated Testing, Vulnerability Scanning

Leadership & Strategy: Project Planning, UX Design, SEO Optimization, Training & Enablement