🔥Senior level isn’t about the number of technologies, it’s about the depth of knowledge

Vlad — Wed, 12 Mar 2025 11:21:33 +0000

I've always loved learning new technologies, frameworks, and programming languages. But once, during an interview, an experienced developer asked me:

You want to learn .NET, but how deeply do you know backend development with JS?

That question made me stop and think. In our world, it often feels like the more technologies you know, the better. But if you spread yourself too thin, you risk staying at the level of "knowing a little about everything" and never becoming an expert in any one area.

Since then, I focused on my stack. I’ve realized that deep knowledge of the tools you work with is much more beneficial than a superficial understanding of a wide range of technologies.

💡Deep knowledge of your stack is the true path to becoming a Senior developer. Here’s why:

✅ You don’t just write code, you understand how it works internally
✅ You know best practices and can optimize projects
✅ You become a valuable specialist, not someone who "knows a little about everything"
✅ And, it’s easier to pass interviews because you don’t answer "superficially"

❓Think about it: How deep is your understanding of your stack? Do you really have an expert-level understanding of the tools you use every day, or are you just scratching the surface? Maybe instead of jumping to learn something new, you should dive deeper into what you already use daily?

🚀 Roo Code vs. GitHub Copilot – Which One Actually Feels Better?

Vlad — Tue, 18 Feb 2025 12:52:21 +0000

I’ve been using both GitHub Copilot and Roo Code, and while they seem similar at first glance, they take pretty different approaches. So, which one actually feels better to use?

💰 Pricing – Pay-as-You-Go or Flat Rate?

Copilot → $10/month, simple and predictable.
Roo Code → Pay only for what you use. You can choose different AI models depending on your needs. If you like cost control, Roo Code makes sense. If you prefer one fixed price, Copilot is easier.

⚡ Speed & Performance – Raw Power or Consistency?

Copilot → Feels instant but slows down a bit with heavy use.
Roo Code → Speed depends on the AI model. Faster = more expensive, but you get full control over performance.

🤖 AI Models – More Options or Plug-and-Play?

Copilot → Uses OpenAI, Claude, and Gemini. Most of them are in "preview" mode.
Roo Code → Supports tons of AI models, including OpenAI, Claude, Gemini, DeepSeek and more. If you want maximum flexibility, Roo Code wins. If you just want to code without thinking about models, Copilot is easier.

🎨 Customization – Do You Like Tweaking Settings?

Copilot → Adapts to your code but doesn’t let you tweak much.
Roo Code → Has Custom Modes so you can fine-tune how the AI behaves.

🛠️ Editor Support – Where Can You Use It?

Copilot → Works with VS Code, JetBrains, Vim, and Neovim.
Roo Code → VS Code-focused but with deeper AI-powered features (file handling, terminal commands, browser automation).

🏆 So, Which One’s Better?

Honestly, I don’t think it’s about picking one over the other—it’s about how you use them.
✅ Copilot → Great for fast, seamless inline suggestions.
✅ Roo Code → Perfect when I need more flexibility, AI model choices, or deeper control.

I personally use Copilot for routine tasks and Roo Code when I need something more powerful or specific. Having both in my workflow just makes sense.

DEV Community: Vlad