Hi, I'm Victor Leveneur 👋
Backend Engineer specializing in Cybersecurity & Infrastructure
Based in Paris, France
I build secure, scalable applications with clean architecture and production-grade engineering. Former Tech Lead specializing in backend development, DevOps, and security hardening.
About Me
I'm a Backend Engineer with a Master's in Cybersecurity from Université de Grenoble-Alpes and 4+ years of experience building secure, scalable applications. As a former Tech Lead & DevOps at Black Pearl, I led technical teams, architected production systems, and implemented security-first engineering practices.
My expertise spans backend development (Go, Python, Node.js), system design, and security hardening. I'm passionate about Domain-Driven Design, clean architecture, and building systems that handle scale.
When I'm not writing code, I'm exploring new tools and staying ahead of the latest in cybersecurity and software engineering.
Skills & Expertise
Backend Development
FastAPI, SQLAlchemy
stdlib, go-restful, sqlc, mkit
Express
Symfony
SDL2
OpenGL
Frontend Development
App Router, RSC
Expo, React Navigation
DevOps & Infrastructure
microk8s, Helm
Docker Compose, multi-stage builds
CloudFormation, EC2, Lambda, S3, Amazon Cognito, ELB, CodeBuild, CodeDeploy
Databases
Security & Tools
Elastic Suite
Other Skills
Scrum, Kanban
Unit Testing, Integration Testing, E2E Testing
RabbitMQ, NATS
OPNSense, Sophos UTM9
VMware ESXi
Prometheus, Grafana, Elastic Suite
API integration (GraphQL, REST)
Salesforce, Odoo
Odoo, Sage X3
Veeam Backup
Soft Skills
Effective verbal and written communication skills
Leading technical teams and projects
Strong analytical and troubleshooting abilities
Efficiently manage multiple tasks and deadlines
Quickly learn new technologies and adapt to changing environments
Work well in team settings and cross-functional projects
Evaluate situations and make informed decisions
Maintain performance under pressure and recover from setbacks
Featured Projects
Simple Portfolio App
Production-grade financial portfolio management
A full-stack financial portfolio management application demonstrating polyglot backend architecture, clean architecture with DDD, Kubernetes deployment, 85%+ test coverage, and security-first design with JWT auth and OWASP Top 10 compliance.
ChronoLobe
Task and productivity management
A full-stack task management application focused on productivity, with a responsive user interface, modular backend architecture, and real-time performance tracking.
Professional Experience
Black Pearl
Tech Lead & DevOps
Led technical teams across internal and external projects. Sat at the executive commitee. Architected and deployed production systems including a 10k+ lines Go monolith, implemented SIEM and security hardening practices, and reduced operational costs through automation.
LYNRED
Cybersecurity Apprentice
Integrated cybersecurity tools in defense systems. Conducted threat and vulnerability assessments, developed secure IT environments, and implemented security monitoring solutions.
Réunion Pièces Agricoles
Backend Developer
Developed scalable REST APIs with Node.js, managed Debian servers and Nginx configuration, and optimized MongoDB databases for production workloads.
Laboratory of Informatics and Mathematics
Research Intern
Researched and implemented time series denoising techniques using machine learning algorithms. Designed experimental protocols with 1-NN algorithm and documented findings in a comprehensive LaTeX research report.
Education
Université de Grenoble-Alpes
Let's Work Together
I'm always interested in hearing about new opportunities, challenging projects, and collaborations. Whether you need a backend engineer, a security consultant, or a tech lead, let's talk.