ML Tech Lead, Remote

Who we are:

Our audience is small but loyal: about 40,000 newsletter subscribers who actually open it.

About the role:

Cotter HQ is hiring for the ML Tech Lead, Remote role to take models from notebook to production and keep them working once they're there.

What you'll work on:

• Track experiments, artifacts and versions in MLflow or Weights & Biases.
• Cut inference cost with quantization, batching and caching.
• Fine-tune open-weight models with LoRA when it beats prompting.
• Develop RAG pipelines with embeddings, vector stores (pgvector, Pinecone, Weaviate) and rerankers.
• Set up evaluation harnesses and regression tests for model quality.

Requirements:

• 7+ years of software engineering experience, with at least two spent on ML systems in production.
• Understanding of core ML concepts: overfitting, evaluation metrics, bias in training data.
• Strong Python and solid engineering habits (testing, packaging, code review)
• Hands-on experience with PyTorch, TensorFlow or JAX.
• Knowledge of LLM APIs, prompt design and evaluation methods.

Bonus points:

• Published papers or open source ML contributions.
• Recommendation or ranking systems at scale.

Perks and benefits:

$275,000 - $325,000 annually

• Health insurance.
• 401(k) with a 100% match up to 5%.
• 11 paid holidays.
• Medical, dental and vision insurance.
• Equity.

Start: Immediately.

Demo job created on 11jobs for testing and demonstrations. It is not an actual opening at Cotter HQ, LLC.