HexGigs Backend Labs — Updates https://blog.hexgigs.com/ Latest posts from HexGigs Backend Labs (.NET, SQL, RabbitMQ, Background Services, AI). en-us AI Can Write the Code. You Still Own the Architecture. https://blog.hexgigs.com/posts/ai-code-engineering-judgment.html https://omarr-backend-lab.netlify.app/posts/ai-code-engineering-judgment.html Tue, 08 Sep 2026 12:00:00 -0500 AI can generate impressive code, but architecture, trade-offs, failure handling, and production ownership still require engineering judgment. Caching in .NET: The Fastest Code Is the Code You Never Execute https://blog.hexgigs.com/posts/dotnet-caching-production.html https://omarr-backend-lab.netlify.app/posts/dotnet-caching-production.html Sat, 11 Jul 2026 12:00:00 -0500 Practical caching strategies for .NET applications, covering memory caching, distributed caching, expiration policies, cache stampedes, and performance monitoring. Designing Event-Driven Systems That Survive Production https://blog.hexgigs.com/posts/designing-event-driven-systems-production.html https://omarr-backend-lab.netlify.app/posts/designing-event-driven-systems-production.html Wed, 08 Jul 2026 12:00:00 -0500 Lessons learned from building resilient event-driven systems with .NET, RabbitMQ, retries, idempotency, and observability. How I Use AI Daily as a Senior Software Engineer (.NET Edition) https://blog.hexgigs.com/posts/how-i-use-ai-daily-senior-dotnet-engineer.html https://omarr-backend-lab.netlify.app/posts/how-i-use-ai-daily-senior-dotnet-engineer.html Mon, 25 May 2026 12:00:00 -0500 How I practically use AI every day as a senior .NET engineer across architecture, debugging, SQL, APIs, and documentation. AI in Real Backend Systems: Where It Actually Creates Value https://blog.hexgigs.com/posts/ai-real-backend-systems-where-it-creates-value.html https://omarr-backend-lab.netlify.app/posts/ai-real-backend-systems-where-it-creates-value.html Wed, 22 Apr 2026 12:00:00 -0500 A practical backend-engineer view of where AI creates real business value inside production systems. Integration Testing in .NET: What Unit Tests Don’t Catch https://blog.hexgigs.com/posts/dotnet-integration-testing-what-unit-tests-miss.html https://omarr-backend-lab.netlify.app/posts/dotnet-integration-testing-what-unit-tests-miss.html Wed, 06 Apr 2026 12:00:00 -0500 Why integration testing matters in .NET systems and what unit tests fail to catch in real production code. Unit Testing in .NET 10: What Actually Matters in Real Systems https://blog.hexgigs.com/posts/dotnet10-unit-testing-real-world.html https://omarr-backend-lab.netlify.app/posts/dotnet10-unit-testing-real-world.html Wed, 01 Apr 2026 12:00:00 -0500 A practical guide to unit testing in .NET 10 focusing on real-world backend systems. C# and .NET 10: Small Things That Make a Big Difference https://blog.hexgigs.com/posts/dotnet10-csharp-quick-tips.html https://omarr-backend-lab.netlify.app/posts/dotnet10-csharp-quick-tips.html Wed, 18 Mar 2026 12:00:00 -0600 Practical C# and .NET 10 tips for building clean and maintainable backend systems. Why Python Became the Language of AI https://blog.hexgigs.com/posts/python-ai-importance.html https://omarr-backend-lab.netlify.app/posts/python-ai-importance.html Sun, 15 Mar 2026 12:00:00 -0600 Why Python became the dominant language for machine learning and AI development. RabbitMQ Patterns Every Backend Engineer Should Know https://blog.hexgigs.com/posts/rabbitmq-patterns-backend-systems.html https://omarr-backend-lab.netlify.app/posts/rabbitmq-patterns-backend-systems.html Sun, 08 Mar 2026 12:00:00 -0600 Common RabbitMQ messaging patterns used in production backend systems. Data Science vs Software Engineering: Where AI Systems Actually Meet https://blog.hexgigs.com/posts/data-science-ai-engineering-boundary.html https://omarr-backend-lab.netlify.app/posts/data-science-ai-engineering-boundary.html Fri, 06 Mar 2026 12:00:00 -0600 Understanding how data science and software engineering intersect in real AI systems. Probability, Uncertainty, and Why AI Outputs Are Never “Certain” https://blog.hexgigs.com/posts/ai-probability-uncertainty.html https://omarr-backend-lab.netlify.app/posts/ai-probability-uncertainty.html Fri, 20 Feb 2026 12:00:00 -0600 Understanding probability and uncertainty in AI systems — and why outputs are likelihoods, not truths. Math, Statistics, and Why AI Is Not Magic https://blog.hexgigs.com/posts/ai-math-statistics-foundation.html https://omarr-backend-lab.netlify.app/posts/ai-math-statistics-foundation.html Fri, 06 Feb 2026 12:00:00 -0600 Why math and statistics are the real foundation of AI and ML — beyond the hype. Designing Guardrails for AI in Production Backends https://blog.hexgigs.com/posts/ai-production-guardrails.html https://omarr-backend-lab.netlify.app/posts/ai-production-guardrails.html Wed, 21 Jan 2026 12:00:00 -0600 Practical guardrails for running AI safely in real backend systems: validation, limits, observability, and failure modes. AI in backend systems: where automation ends and engineering still matters https://blog.hexgigs.com/posts/ai-backend-automation-vs-engineering.html https://omarr-backend-lab.netlify.app/posts/ai-backend-automation-vs-engineering.html Sun, 18 Jan 2026 00:00:00 +0000 A senior-level look at where AI genuinely helps backend systems and where engineering judgment still matters. Idempotency in backend systems https://blog.hexgigs.com/posts/backend-idempotency-patterns.html https://omarr-backend-lab.netlify.app/posts/backend-idempotency-patterns.html Thu, 08 Jan 2026 00:00:00 +0000 Why retries make idempotency mandatory in backend systems, especially for APIs and queue-driven workflows. Why AI agents are becoming backend engineers' new teammates | HexGigs Backend Labs https://blog.hexgigs.com/posts/ai-backend-agents.html https://omarr-backend-lab.netlify.app/posts/ai-backend-agents.html Wed, 19 Nov 2025 00:00:00 +0000 How AI agents are evolving from code helpers into always-on backend teammates that triage incidents, steer background jobs, and operate inside your .NET and SQL stack. Agentic AI vs "plain" generative AI for backend systems https://blog.hexgigs.com/posts/agentic-vs-generative-ai-backend.html https://omarr-backend-lab.netlify.app/posts/agentic-vs-generative-ai-backend.html Mon, 17 Nov 2025 10:05:00 -0600 Pragmatic JSON handling in .NET https://blog.hexgigs.com/posts/dotnet-json-handling.html https://omarr-backend-lab.netlify.app/posts/dotnet-json-handling.html Sun, 16 Nov 2025 16:20:00 -0600 Blue/green deployments without drama https://blog.hexgigs.com/posts/blue-green-deployments.html https://omarr-backend-lab.netlify.app/posts/blue-green-deployments.html Fri, 14 Nov 2025 15:10:00 -0600 .NET 10 for Backend Engineers: What’s Actually Worth Paying Attention To https://blog.hexgigs.com/posts/dotnet-10-backend-what-matters.html https://omarr-backend-lab.netlify.app/posts/dotnet-10-backend-what-matters.html Wed, 14 Jan 2026 12:00:00 -0600 A backend-focused look at .NET 10, covering performance, APIs, hosting, and what actually impacts production systems. .NET 9 for backend services: what actually matters https://blog.hexgigs.com/posts/dotnet-9-backend-services.html https://omarr-backend-lab.netlify.app/posts/dotnet-9-backend-services.html Mon, 10 Nov 2025 20:30:00 -0600 EF Core or Dapper? How I decide https://blog.hexgigs.com/posts/dotnet-efcore-dapper.html https://omarr-backend-lab.netlify.app/posts/dotnet-efcore-dapper.html Sat, 08 Nov 2025 19:45:00 -0600 Record vs class vs struct in C# https://blog.hexgigs.com/posts/dotnet-record-class-struct.html https://omarr-backend-lab.netlify.app/posts/dotnet-record-class-struct.html Thu, 06 Nov 2025 21:30:00 -0600 Threading in .NET: the mental model https://blog.hexgigs.com/posts/dotnet-threading-basics.html https://omarr-backend-lab.netlify.app/posts/dotnet-threading-basics.html Sat, 25 Oct 2025 14:15:00 -0600 Functions vs stored procedures vs views vs CTEs vs temp tables https://blog.hexgigs.com/posts/sql-functions-vs-procs-vs-views.html https://omarr-backend-lab.netlify.app/posts/sql-functions-vs-procs-vs-views.html Sun, 05 Oct 2025 17:00:00 -0600 Designing resilient .NET 8 background services https://blog.hexgigs.com/posts/dotnet-resilient-background-services.html https://omarr-backend-lab.netlify.app/posts/dotnet-resilient-background-services.html Fri, 02 May 2025 21:15:00 -0600 Splitting a monolith into queue-driven microservices https://blog.hexgigs.com/posts/dotnet-splitting-monolith-queues.html https://omarr-backend-lab.netlify.app/posts/dotnet-splitting-monolith-queues.html Fri, 18 Apr 2025 20:40:00 -0600 From "it works" queries to senior-level SQL https://blog.hexgigs.com/posts/sql-senior-level-queries.html https://omarr-backend-lab.netlify.app/posts/sql-senior-level-queries.html Mon, 10 Mar 2025 19:05:00 -0600 Event logs, audit trails, and replays in SQL https://blog.hexgigs.com/posts/sql-event-logs-replays.html https://omarr-backend-lab.netlify.app/posts/sql-event-logs-replays.html Fri, 21 Feb 2025 09:55:00 -0600 RabbitMQ channel and connection best practices https://blog.hexgigs.com/posts/rabbitmq-channel-best-practices.html https://omarr-backend-lab.netlify.app/posts/rabbitmq-channel-best-practices.html Thu, 30 Jan 2025 11:20:00 -0600 Dead-letter queues and poison message handling https://blog.hexgigs.com/posts/rabbitmq-dead-letter-queues.html https://omarr-backend-lab.netlify.app/posts/rabbitmq-dead-letter-queues.html Sun, 05 Jan 2025 22:10:00 -0600 Cron-like scheduling with .NET background workers https://blog.hexgigs.com/posts/background-cron-like-scheduler.html https://omarr-backend-lab.netlify.app/posts/background-cron-like-scheduler.html Sun, 15 Dec 2024 06:30:00 -0600 Making invisible background jobs observable https://blog.hexgigs.com/posts/background-observability.html https://omarr-backend-lab.netlify.app/posts/background-observability.html Thu, 28 Nov 2024 15:45:00 -0600 OMR Holiday Atlas — side project https://omr-holiday-atlas.netlify.app https://omr-holiday-atlas.netlify.app Mon, 10 Nov 2025 00:00:00 +0000 A small travel-planning web app built by Omarr as a playground for frontend and API integration experiments. OMRCade — JavaScript mini arcade https://omrcade.netlify.app https://omrcade.netlify.app Wed, 12 Nov 2025 00:00:00 +0000 A browser-based mini arcade of JavaScript games with a dark theme, used as a sandbox for UI and game loop experiments.