Llm Engineer (Ai)

TL;DR

Llm Engineer (AI): Designing and implementing modern LLM fine-tuning and optimization approaches with an accent on retrieval-augmented systems (RAG), multimodal modeling, and large-scale learning for e-commerce. Focus on building robust experimentation pipelines and evaluation frameworks for production-ready AI.

Location: Wrocław Office, Remotely from Poland, Warsaw Office

Salary: 13000 - 20000

Company

hirify.global, a Solvd Inc. company, creates AI-powered products and services that make a real difference.

What you will do

• Bridge cutting-edge research and real-world applications by designing and implementing modern LLM fine-tuning and optimization approaches.
• Focus on applied research projects including retrieval-augmented systems (RAG), multimodal modeling, and large-scale learning for e-commerce.
• Work on algorithms from the idea stage to deployment, building robust experimentation pipelines and evaluation frameworks for production-ready AI.
• Interact directly with partners, collaborating closely with engineering and product teams to bring research prototypes into the eBay ecosystem.
• Contribute to Core AI strategy by taking ownership of research components and delivering measurable impact on product-facing systems.
• Collaborate with world-class researchers to contribute to technical discussions, documentation, and internal thought leadership.

Requirements

• Strong research foundation in NLP, LLMs, neural architectures, and modern training/fine-tuning methodologies.
• Team-work attitude with a clear technical communication mindset and the ability to work independently on well-scoped problems.
• Hands-on coding skills with proven experience in implementing, evaluating, and scaling machine learning models.
• Data-based problem-solving skills, specifically the ability to translate complex technical work into business impact and quantifiable results.
• Analytical thinking and a structured approach to solving research challenges.
• Fluency in English, as you will be an integral part of an international, English-speaking environment.

Nice to have

• PhD or Master’s degree in Computer Science, AI, Computational Linguistics, or a related field.
• Experience in e-commerce or working with large-scale consumer platforms.
• Familiarity with evaluation methodologies specifically designed for LLM-based and agentic systems.
• Publication track record or interest in contributing to technical artifacts and machine learning venues.
• Growth mindset and the ambition to increase your technical ownership within the Core AI domain.

Culture & Benefits

• Flexibility to choose your working hours and location.
• Remote work is valued, with opportunities to join in Warsaw and Wrocław offices.
• Relaxed atmosphere.
• Pets are welcome in the office.