Backend Engineer focused on building reliable systems that behave correctly in production.

I have 3+ years of experience working on real-world systems in .NET, and I’m currently deepening my expertise in Node.js, system design, and application security.

I’m particularly interested in:

• how systems fail
• how they scale
• how to make them predictable over time
• how technical decisions impact product quality

• Designing backend systems focused on reliability, clarity, and maintainability
• Studying failure modes, observability, and production behavior
• Exploring secure application design and backend security fundamentals
• Building projects to understand systems deeply — not just ship features

• C#, .NET, ASP.NET Core
• Node.js (TypeScript)
• REST APIs
• Distributed systems fundamentals
• Clean Architecture / DDD

• PostgreSQL
• SQL Server
• Query design / relational modeling

• Docker
• CI/CD (GitHub Actions, GitLab CI)
• Git

• xUnit
• Vitest
• Integration testing
• End-to-end testing

Production-minded accounting SaaS demo built to showcase backend engineering in a realistic business domain.

• Multi-tenant architecture
• RBAC authorization model
• Invoice lifecycle & business invariants
• Audit trail & traceability
• SQL-first persistence design
• Testing strategy
• Containerized delivery

🔗 Live: https://ledger-forge.elie-patrice.fr
🔗 Repo: https://github.com/bashlor/ledger-forge

Backend Engineering • Reliability • Security • System Design • Product Thinking