Level Up Coding

“Level Up Coding” delves into the intricacies of Python programming, data augmentation for machine learning, and the challenges of enterprise RAG implementations. It explores the importance of understanding the speed of Python, the significance of short-term memory in AI applications, and the utilization of tools like Langchain for conversation history retention. Additionally, it discusses the pitfalls of treating data as static in the realm of generative AI and emphasizes the need for systems to not just read documents but truly understand and interact with dynamic big data.

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Building an Agentic Quantum Computing System

Level Up Coding

Quantum kernels and agentic systems Continue reading on Level Up Coding

The Law of Demeter: Stop Chaining Methods

Level Up Coding

Every dot in a method chain is a dependency you didn’t intend to write. The mock that ate your morning You are writing a test for a function that generates a shipping label. The function needs the cit...

Matplotlib Made Easy: Learn the API, Build Better Plots

Level Up Coding

A complete guide for data visualisation with Python Continue reading on Level Up Coding

FAANG : Delete 1 Million Rows. The Real Problem Wasn’t Deleting Them.

Level Up Coding

Most engineers focus on the DELETE statement. Production systems care about everything that happens after it. The requirement looked simple. Delete 1 million rows from a production orders table — olde...

Transform Salesforce with AI: Build a One-Click Record Summary Button Using Prompt Builder & Flows

Level Up Coding

Learn how to pass data dynamically via recordId variables to ground Einstein LLMs and build native AI modal popups. Continue reading on Level Up Coding

PICO-8: The Fantasy Console for People Who Actually Want to Finish a Game

Level Up Coding

A developer’s logbook on the tiny tool that brings game dev back to its essence. PICO-8’s Homepage — source: author This article was originaly published in French on my website: NX Academy. Since I w...

Stop Adding Indexes to Fix Slow Queries — You’re Quietly Killing Your Writes

Level Up Coding

Every index you add is a tax. Most teams only ever count the discount. There’s a moment almost every backend engineer has lived through. A query is slow. Someone opens a dashboard, sees a sequential s...

Stop Installing Every Node.js Module Up Front: A Better Architecture for On-Demand Dependencies

Level Up Coding

How to design Node.js applications that reference optional modules, install or load them only when needed, and keep dependency governance under control. Most Node.js applications treat dependencies as...

Your Production AI App Needs an LLM Router, Not One Favorite Model

Level Up Coding

The best model is different for every request. Routing is how production AI apps control cost, latency, and quality without guessing. Continue reading on Level Up Coding

Closing the Gap: What a Library Can’t Own

Level Up Coding

Coordination ends at the lease store. Everything else is yours. The fencing counter stops stale writes to the lease store. The atomic checkpoint write closes the window between progress and liveness....

The AI Interview Round Nobody Prepared You For: A Clear Roadmap for SDE-1s and SDE-2s

Level Up Coding

Confused About AI Interview Prep? Here’s the Exact 30-Day Roadmap I’d Follow Again | AI Engineer Interview Preparation Guide (2026): LLMs… Continue reading on Level Up Coding

One Open-Source Plugin Just Commoditized Every AI Coding Moat

Level Up Coding

Forget the hyped GitHub star counts. The real story is how 14 rival tools — from Claude Code to Cursor — just standardized on a single… Continue reading on Level Up Coding