AI Engineer - AI/LLM (Backend)

Volga Partners Romania
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Overview 

We are hiring a mid-level AI Engineer to build and ship AI-powered features end-to-end. 

This is not a junior role — candidates must have hands-on experience delivering production-ready AI solutions and the ability to independently execute in a fast-paced environment. 

You will work closely with founders and product teams to develop intelligent systems such as copilots, chatbots, and automation tools, while ensuring performance, scalability, and reliability. 

 

Key Responsibilities 

  • Build and ship AI-powered features (chatbots, copilots, automation tools)

  • Design and implement RAG pipelines using embeddings and vector search

  • Write and optimize prompts and system instructions

  • Integrate LLM APIs (OpenAI, Anthropic, etc.) into production systems

  • Develop backend services (Python / Node.js) to support AI workflows

  • Work with real-world data (documents, logs, APIs)

  • Improve system reliability through evaluations, testing, and iteration

  • Debug issues such as hallucinations, latency, and cost inefficiencies

  • Collaborate closely with founders and product team on product direction

Requirements 

  • 2+ years of experience in Machine Learning or AI-related roles

  • Strong coding skills in Python or JavaScript

  • Hands-on experience working with LLM APIs

  • Experience building RAG pipelines or agent-based systems

  • Solid understanding of ML fundamentals (fine-tuning is a plus)

  • Proven ability to build and ship production-ready systems

Tech Stack 

  • Python, Node.js

  • OpenAI / Anthropic APIs

  • Vector databases (Pinecone, Chroma)

  • React / Next.js

  • AWS / Vercel

  • LangChain / LlamaIndex

  • Prompt engineering

  • Embeddings + vector search

  • API design and backend systems

 

Nice to Have 

  • Experience with LLM evaluation, fine-tuning, or model optimization

  • Exposure to agent frameworks or multi-step reasoning systems

  • Domain experience in finance, healthcare, legal, or other high-accuracy environments

What we Offer 

  • Salary: $2,500 – $3,500 USD/month (based on experience and alignment with role expectations)

  • Opportunity to own and shape a meaningful internal product

  • Collaborative, low-bureaucracy environment

  • Exposure to cutting-edge AI and automation technologies

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