Junior AI Engineer (Next.js & LLM)

JavaScript

Junior AI Engineer (Next.js & LLM)

JavaScript
Marszałkowska 89, Warszawa

Blazity Sp. z o.o.

Full-time
Mandate, B2B
Junior
Remote

Job description

About the Role

At Blazity, we are building modern web applications and rapidly expanding into AI-powered systems — agents, automation, and LLM-based workflows.

We are looking for a high-potential Junior AI Developer (student or early career) who is strongly interested in AI and LLMs, actively experiments with them, and wants to turn that into real-world, production experience.

 

This is not a standard frontend role — this is an AI-first position, where web development is a tool to build intelligent systems.

Our requirements

AI-first mindset 

  • You actively use agentic coding tools like: Claude Code / Codex / Cursor
  • You have experimented with AI, e.g.:
    • building a chatbot
    • automating tasks with LLMs
    • generating structured outputs
  • You are curious:
    • how LLMs work
    • how to build real AI features (not just use them)
  • This role is for people who already do things with AI, not just read about it.

Technical foundations

  • Knowledge of:
    • JavaScript / TypeScript
    • React or Next.js (even small projects)
  • Understanding of APIs (REST basics)

Learning mindset

  • You learn by building (projects > theory)
  • You are comfortable making mistakes and iterating
  • You are proactive and self-driven

Big plus 

  • First experience with:
    • OpenAI / Anthropic APIs
    • prompt engineering (structured output, few-shot)
  • You built:
    • small AI apps (chatbot, automation, AI tool)
  • GitHub projects showing AI experiments
  • Participation in hackathons (especially AI-related)

Other

  • English C1

What You Will Do

  • Work on real AI features
  • Support development of:
    • LLM-based features
    • simple AI workflows
    • early-stage agent-like systems
  • Help with:
    • prompt design and iteration
    • testing and improving AI outputs
    • building simple integrations with LLM APIs

What we offer

  • Hands-on experience with real AI systems in production
  • Work with experienced engineers building AI solutions
  • Fast growth path toward AI Engineer role
  • Opportunity to work on real client projects (not toy problems)

Location

100% remote from Poland

Tech stack

    ReactJS

    junior

    AI

    junior

    Next.js

    junior

Office location

Junior AI Engineer (Next.js & LLM)

Summary of the offer

Junior AI Engineer (Next.js & LLM)

Marszałkowska 89, Warszawa
Blazity Sp. z o.o.
By applying, I consent to the processing of my personal data for the purpose of conducting the recruitment process. Informujemy, że administratorem danych jest Blazity sp. z o. o. z siedzibą w Warszawie, ul. Zięby 41 (dalej jako "administrator"). Ma... MoreThis site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
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