AI Engineer - AI/LLM (Backend)

Location: Serbia, Poland, Romania, Ukraine

Department: Volga Partners

Workplace: remote

Employment Type: full

Description

About Volga Partners 

Volga Partners is a global leader in generative AI (GenAI) innovation, building and deploying advanced AI solutions that drive real-world business transformation. We design intelligent systems, custom large language model (LLM) applications, and next-generation automation that enable organizations to operate smarter, faster, and more efficiently. 

Our mission is to make GenAI practical, scalable, and impactful. We go beyond implementation—specializing in refining and enhancing LLMs with high accuracy across complex, high-value domains including finance, healthcare, legal, and technology. By tailoring models to specific use cases, we enable our partners to achieve measurable outcomes and unlock new growth opportunities. 

With a global workforce of 3,000+ professionals across multiple countries, Volga Partners brings together diverse perspectives, cultures, and expertise. This diversity fuels innovation and allows us to deliver solutions that are both globally relevant and locally effective. 

At Volga Partners, you’ll join a collaborative, forward-thinking team solving complex problems, exploring new frontiers in artificial intelligence, and shaping the future of intelligent technology. 

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