Junior backend dev asks: is learning RAG, vector DBs and agents worth it yet?
Effective_Emphasis21 · reddit · 2026-09-18
A junior backend developer (Laravel, moving into full-stack/React) posted asking for guidance: their feed is flooded with RAG, vector databases, LLMs, AI agents and MCP, and they can't tell real investment from hype. They want to know whether RAG/vector DB knowledge is becoming an actual expectation for backend devs or still niche/ML-specific, and whether building toy AI agent projects now matters for job hunting. They're trying to spend limited learning time on real bets rather than chasing weekly trends, and would love input from people actually shipping these systems.
More from coding & agent
- Devs debate whether dropping tool calls is a practical context-compaction technique — zeeg · 2026-09-18
- Muse agent installs PyTorch and depth model on its own VM to drive a robot — armand_ruiz · 2026-09-18
- Benzi Agent Beats Big Players on Benchmarks While Reading Less Code — DonkeyTheKing · 2026-09-18
- Full cold-start prompt lets a Grok bot climb an arena leaderboard to #1 autonomously — tetsuoai · 2026-09-18
- DeepSeek V4.1-Flash vs V4-Pro Benchmarked: 3x Cheaper but Slower and Weaker Output — Arindam_1729 · 2026-09-18
- The Agent-Coding Failure Nobody Talks About: Right Code, Wrong Idea — gandazgul · 2026-09-18