A. Leonenko
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© 2026 Andrew Leonenko. All rights reserved.

Based in New York•
Available for opportunities

Blog

Expert insights on AI systems, software engineering, and modern technology. From practical tutorials to industry analysis.

How I Built Selloquence: Lessons From Turning a Side Project Into a Real Product

How I

FeaturedFebruary 14, 2026

How I Built Selloquence: Lessons From Turning a Side Project Into a Real Product

The story behind Selloquence, an AI-powered listing optimizer for online sellers, and what I learned about building a product people actually want to use.

Building AI Document Intelligence in Microsoft 365: A Developer's Guide

Building AI

February 3, 2026

Building AI Document Intelligence in Microsoft 365: A Developer's Guide

Learn how to build intelligent document processing systems using Microsoft Azure AI services and Power Platform. Real-world insights from implementing enterprise-scale solutions in healthcare and legal tech.

Building Effective Agents: Three Core Principles for AI Engineers

Building Effective

January 31, 2025

Building Effective Agents: Three Core Principles for AI Engineers

A deep dive into building production-ready AI agents with practical insights on when to use agents, how to keep them simple, and the importance of thinking from the agent\'s perspective.

All Posts

AI in Healthcare: From Diagnosis to Treatment Planning

AI in

January 28, 2025

AI in Healthcare: From Diagnosis to Treatment Planning

Explore how artificial intelligence is transforming healthcare through early disease detection, personalized treatment plans, and predictive analytics, while addressing privacy and ethical challenges.

aihealthcare
Meta Glasses: The Promise and Reality of AI-Powered Wearables

Meta Glasses:

January 27, 2025

Meta Glasses: The Promise and Reality of AI-Powered Wearables

An in-depth look at Meta Smart Glasses – exploring why they represent the cutting edge of wearable AI technology while examining the crucial features still missing from the platform.

AIWearables
Building Intelligent Agents with Microsoft Copilot Studio: A Developer's Guide

Building Intelligent

January 26, 2025

Building Intelligent Agents with Microsoft Copilot Studio: A Developer's Guide

Explore how Microsoft Copilot Studio empowers developers to create custom AI agents that transform business processes through natural language understanding and workflow automation.

aimicrosoft
AI in the Legal Sector: Transforming Document Processing and Case Management

AI in

January 24, 2025

AI in the Legal Sector: Transforming Document Processing and Case Management

Discover how artificial intelligence is revolutionizing legal practice through automated document analysis, intelligent case management, and predictive analytics, while navigating ethical considerations.

ailegal-tech
Building Production-Ready AI Systems: Lessons from the Trenches

Building Production-Ready

January 15, 2025

Building Production-Ready AI Systems: Lessons from the Trenches

Key insights and best practices for deploying AI applications at scale, from model versioning to monitoring and observability.

aimlops
Building an AI Portfolio Assistant: From Concept to Code in 3 Hours

Building an

January 4, 2025

Building an AI Portfolio Assistant: From Concept to Code in 3 Hours

How I built a custom AI chat assistant for my portfolio using Ollama, Next.js, and TypeScript - complete with typing animations, mobile responsiveness, and intelligent conversation routing.

AIReact