Associate ML Engineer, LLM

Who we are:

Built and run from Cluj-Napoca, the site connects pet owners with local sitters and dog walkers. Product reviews happen on Thursdays, with demos of whatever shipped that week.

What this job is:

We are adding an Associate ML Engineer, LLM to our Applied AI team. We're looking for an engineer to build retrieval-augmented generation features on hosted and open-weight language models, with proper evaluation. This is an in-person role at our Cluj-Napoca location.

What you'll work on:

• Track experiments, artifacts and versions in MLflow or Weights & Biases.
• Maintain feature pipelines and a feature store such as Feast or Tecton.
• Fine-tune open-weight models with LoRA when it beats prompting.
• Monitor models for drift, data quality issues and latency regressions.
• Handle on-call for the ML services the team owns.
• Build training pipelines in PyTorch or TensorFlow and run them on GPUs in AWS, GCP or Azure.

You might be a good fit if you:

• 1-2 years of software engineering experience, with at least two spent on ML systems in production.
• Experience deploying models as services and monitoring them.
• Hands-on experience with PyTorch, TensorFlow or JAX.
• Familiarity with Docker, Kubernetes and a cloud ML platform (SageMaker, Vertex AI, Azure ML)
• Understanding of core ML concepts: overfitting, evaluation metrics, bias in training data.
• Strong Python and solid engineering habits (testing, packaging, code review)

Pluses:

• Published papers or open source ML contributions.

Why work with us:

• Private medical care.
• Life insurance.
• Flexible hours.
• Training budget.

Let us know your current notice period and salary expectations.

Start: Immediately.

Demo job created on 11jobs for testing and demonstrations. It is not an actual opening at Merrick Apps S.R.L..