The T-Shaped Dev
Substacknewsletter · by Petar Ivanov · English
Production-grade engineering for full-stack JavaScript developers who want to think like architects — React, Node, software architecture, and building real AI systems. No fluff, every week.
- Audience
- 30K subscribers
- Shown publicly on Substack
- Publishing
- Every two weeks
- 9 posts indexed in the last 90 days
- Last post
- Oct 6, 2026
- 25 days ago
- Likely audience
- Software architects
- Inferred from post content
Momentum
#254 on Substack's Technology leaderboard
From daily snapshots of Substack's public figures · how rising is measured
The T-Shaped Dev is a Substack newsletter by Petar Ivanov covering Prompt engineering, LLM observability and AI agent debugging. NewsletterFIT indexed 9 posts from it in the last 90 days, most recently on Oct 6, 2026. Shown publicly on Substack: 30K subscribers. It ranks #254 on Substack's Technology leaderboard.
Topics
- Prompt engineering
- LLM observability
- AI agent debugging
- OpenTelemetry
- Model tracing
Recent posts
- Your AI…
- Saved the…
- 6 MCP…
- 5 Resilience…
- 7 Identity…
- The 3…
Sponsors detected
No sponsored posts detected in the last 180 days of indexed posts.
Detected automatically from posts marked as sponsored. Detection can miss or misread placements.
See the full picture on The T-Shaped Dev
Subscriber momentum over time, every detected sponsor with the source post, companies and people it mentions, guests, and an alert when any of it changes.
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Compiled from public pages · refreshed Oct 13, 2026 · How NewsletterFIT collects and labels data