Helmi Gnichi

Senior .NET Backend Engineer & Technical Team Lead with over 10 years of experience designing, building, and scaling high-performance, business-critical systems. I specialize in C#/.NET, low-latency architectures, and robust backend platforms used in energy trading, market data, and real-time systems.

I helped to transform complex business requirements into clean, scalable, and maintainable architectures, with a strong focus on performance, reliability, and code quality. My background includes designing market gateways, feed handlers, order routing systems, and real-time monitoring platforms, where milliseconds, stability, and correctness matter.

As a Team Lead, I bridge the gap between technical excellence and business goals. I mentor developers, define coding standards, enforce quality gates (CI/CD, code reviews, static analysis), and improve delivery velocity without sacrificing maintainability. I’m comfortable collaborating with product owners, stakeholders, and non-technical teams, ensuring alignment from concept to production.

My expertise covers:

C# / .NET (8/9), high-performance backend development

Low-latency & real-time systems

Clean Architecture, DDD, SOLID principles

CI/CD, Azure DevOps, automated quality gates

Observability & monitoring (OpenTelemetry, metrics, logs)

Scalability, resilience, and fault-tolerant design

I’m particularly effective in legacy modernization, performance optimization, and critical system design, where reliability and long-term sustainability are essential.