Aleksandr Kosenko - Aleksandr Kosenko Digital

Claude Code

How I Tested the Cross‑Lingual Hints Hypothesis for Expat Mode

Unlock the secrets of efficient language learning! Discover how a cross-lingual hints system can speed up your Spanish skills while living in Spain. Learn the surprising findings from real textbook analysis and how AI tools streamline the process

Claude Code

Expat Mode: how I update my language‑learning bot in a state of total uncertainty

Explore how I developed a Telegram bot to enhance my language learning journey amid uncertainty. Discover the innovative "Expat Mode," designed to balance learning between English and Spanish, automating decisions to keep progress steady and engaging.

Claude Code

Control over “Magic Prompts”: Practical Techniques and Lessons from the Day

Explore practical techniques for harnessing AI with "Magic Prompts." Discover how to control AI responses, ensure quality, and use multi-model strategies for improved outcomes. Learn to create effective backups and solidify your development process!

Claude Code

Apples, Not Pineapples: Making Vacancy‑First Real with Triple Validation

Discover the power of "vacancy-first" with triple validation! This approach ensures that only the most relevant skills (or "apples") are presented, eliminating distractions (like "pineapples") and streamlining your job application process for success.

Claude Code

Resume as a database: an AI‑assisted experiment

Transform your job search! Discover how to turn your resume into a database with AI for tailored applications and impactful cover letters.

A person engaging with a blog, highlighting authentic connections and value-driven sales.

The Art of Selling Through Blogging

Advertising Message When Selling Through a Personal Blog

Learn to craft compelling advertising messages on your personal blog to boost sales, connect with readers, and enhance your selling skills!

A dynamic sales funnel graphic illustrating effective communication and audience engagement strategies.

The Art of Selling Through Blogging

Sales Fundamentals

Unlock the essentials of sales! Learn the four key components that drive effective selling and how to connect with your audience.

Marketing

What is Product Marketing

Discover the fundamentals of product marketing! Learn key concepts, practical examples, and tools to effectively promote your products today.

A person writing a blog, surrounded by community icons and sales symbols, symbolizing effective selling.

Main skills of selling through personal blogging

Unlock the secrets of selling through personal blogging! Learn essential skills in community building and sales techniques to boost your success.

Dynamic visuals of a digital product manager navigating challenges and driving innovation.

Product Management

About Me, What I Do, and What a Product Manager in Digital Really Is

Discover the role of a digital product manager and learn strategies to enhance decision-making and drive product success in your career.

Visual representation of interconnected tables illustrating SQL joins and subqueries.

Data Analitics Study Notes

Subqueries and Joins in SQL

Master SQL with our guide on subqueries and joins! Learn to streamline data retrieval and enhance query efficiency today.

Visual representation of data analysis with graphs illustrating central tendency and dispersion.

Data Analitics Study Notes

Descriptive statistics

Discover the essentials of descriptive statistics! Learn to analyze data using mean, median, and mode for better insights today.