ML Engineer (Applied AI)

Stack

Responsibilities

• ▹Architect and build AI features, designing and implementing classical ML and generative AI solutions that balance autonomous agentic architectures and deterministic pipelines
• ▹Design and maintain evaluation frameworks to measure AI quality, reliability, safety, and business impact before and after deployment
• ▹Partner closely with full-stack developers and DevOps to integrate AI capabilities into client web and mobile applications via serverless architecture or API endpoints
• ▹Refine prompts, system instructions, and chunking strategies to balance accuracy, latency, token consumption, and data privacy
• ▹Clean and process unstructured or historical client data to train and fine-tune custom algorithms for forecasting, classification, or anomaly detection
• ▹Participate in client discovery sessions, translating ambiguous business requirements into viable technical solutions

Requirements

• ▹Core LLM frameworks and modern LLM APIs, such as Anthropic Claude, OpenAI, or AWS Bedrock, as well as open-source LLMs
• ▹Experience designing LLM workflows, agentic systems, or retrieval pipelines using frameworks such as Langchain, LangGraph, or LlamaIndex
• ▹Experience with vector databases such as Pinecone, pgvector, Milvus, or Qdrant, plus SQL and data engineering pipelines
• ▹Experience with traditional supervised and unsupervised ML, such as classification, regression, and anomaly detection
• ▹Experience with AWS cloud infrastructure (Lambda, SageMaker, Bedrock, EC2) and modern DevOps/retraining pipelines
• ▹Production-grade Python

Soft skills

About the company

NineTwoThree AI Studio is a product design, engineering, and marketing firm specializing in custom AI, web, and mobile applications for established brands and funded startups, with a fully remote, collaborative team spanning the US and Europe. With over 150 launched products over 13 years, it has built AI and ML technology for brands such as Consumer Reports, FanDuel, and Nara, and has been named among the top AI agencies in the US, including the Inc. 5000 list for four consecutive years.