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Senior ML Engineer, LLM
Location
Poland
Posted
5 days ago
Salary
0
Seniority
Senior
Job Description
Senior ML Engineer, LLM
KIEFER
• Work on Sophea AI across LLM pre-training, training from scratch, fine-tuning, evaluation, and continuous model improvement • Build production-grade ML pipelines for inference, serving, deployment, monitoring, and model lifecycle management • Optimize model performance in production, including latency, throughput, cost efficiency, quantization, and GPU workload usage • Work with datasets, experiments, benchmarks, and evaluation methods to improve language model quality and domain-specific performance
Job Requirements
- Strong hands-on experience with LLMs, including pre-training, training from scratch, fine-tuning, evaluation, and performance improvement
- Strong ML engineering background, including Python, PyTorch, Docker, and production ML practices
- Experience with model serving, inference optimization, quantization, GPU workloads, and frameworks such as vLLM, SGLang, NVIDIA Triton, TensorRT, TGI, or similar tools
- Ability to build production-grade ML systems, not only research prototypes, scripts, basic RAG applications, or high-level AI integrations
- Native-level Polish language proficiency
Benefits
- Compensation: competitive package aligned with talent benchmarks
- Impact: hands-on role working on Sophea AI, one of the most ambitious Greek-focused AI products in the market
- Work format: remote work option, with relocation support available for candidates open to working from our Athens office
- AI-native environment: real challenges across LLMs, training, fine-tuning, inference optimization, GPU workloads, and production AI systems
- NVIDIA ecosystem: access to related conferences, certifications, internal knowledge sharing, and advanced AI infrastructure through Kiefer’s strategic collaboration
- Culture: engineering-first, high autonomy, low bureaucracy, and space to build meaningful AI products
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