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AI Engineer 5 (AI Foundations, LLM Core and Agentic AI)

Cambridge, MA, US💼 Full-time💰 $229,900–$229,900🗓 2026-09-18 → 2026-09-25

Core

Design, develop, test, deploy, and support foundational AI systems including LLM inference, agentic workflows, and multi-model orchestration to enhance banking products and customer experiences.

Role type

Senior IC AI Engineer (LLM Core & Agentic AI)

Builds

Scalable, high-performance AI infrastructure and proprietary solutions for millions of customers

Domain

Financial Services / Large Language Models / Agentic AI

Deliverable

production ML models

Required skills

Foundation model training, LLM inference, multi-agent workflows, similarity search, model optimization, cost-performance governance, multi-model orchestration, system design, mentorship

Preferred skills

Leading development of AI systems with tradeoff decisions, deploying scalable AI on cloud platforms, building agentic AI systems, architecting heterogeneous AI systems, enforcing ethical AI standards, dynamic inference strategies, model compression, right-sizing models

Technologies

AWS Ultraclusters, Huggingface, VectorDBs, PyTorch, CUDA, Python, Go, Scala, Java, C++, C#

Responsibilities

Partner with cross-functional teams to deliver AI-powered products; Design and optimize multi-model orchestration pipelines; Establish cost-performance governance reviews; Lead team design councils; Mentor Principal and Manager-level engineers

Seniority

Senior, hands-on IC with mentorship responsibilities

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