Machine Learning Engineer

PeopleCert

full-time

Posted on: 9/19/2025

Origin: • 🇬🇷 Greece

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Mid-LevelSenior

AzureCloudPythonPyTorchTensorflow

About the role

Design, fine-tune, and evaluate ML and generative AI models for enterprise and product use cases
Take foundation models and classical ML approaches and adapt them to deliver real-world value for learners, partners, and internal teams
Build and maintain experimentation pipelines for training and benchmarking models
Collaborate with Data Engineers to prepare and manage high-quality training datasets
Work closely with MLOps Engineers to ensure models transition smoothly into production
Contribute to building responsible AI by testing for bias, robustness, and explainability
Collaborate within an international, cross-functional team to deliver assessment and certification platform features

Bachelor’s Degree in Computer Science, Engineering, or a related field (Master's or higher a plus)
3+ years strong experience with ML frameworks (PyTorch, TensorFlow, Hugging Face)
Hands-on expertise with foundation models (LLMs, transformers, multimodal)
Strong programming skills in Python
Familiarity with Azure ML or other cloud ML platforms
Proven track record of delivering ML projects into production
Excellent knowledge of English (C2 level certification desired; LanguageCert C2 LTE or C2 IESOL a plus)
Advanced computer literacy (ECDL Advance certification desirable)
Problem-solving mindset with ability to align technical solutions to business needs
Nice-to-have: prompt engineering skills; experience with retrieval-augmented generation (RAG) and hybrid approaches; familiarity with prompt chaining frameworks (LangChain, Semantic Kernel)
If working on SELT service: background checks, Right to Work checks, security checks (BPSS/CTC), financial background check, employment references; declaration of any criminal record/bankruptcy