CareerPlan

Senior / Staff Machine Learning Engineer, Applied AI

Alewife, Cambridge, MAFull-time$180k2026-10-07 → 2026-11-10

Core

Adapt Lila's AI models to customer-specific scientific workflows through post-training, evaluation, and production integration.

Role type

Senior / Staff Machine Learning Engineer, Applied AI

Builds

Production-oriented ML systems, post-training pipelines, and evaluation harnesses for scientific applications

Domain

AI Research, Large Language Models, Scientific Computing

Deliverable

production ML models

Required skills

Post-training (SFT, RL/DPO/PPO/GRPO), Python, PyTorch, LLM/MoE/Agentic AI expertise, Debugging complex model failures, Evaluation system design

Preferred skills

RLHF/Tool-augmented RL, Model monitoring dashboards, MoE architecture training, Mentoring engineers

Technologies

PyTorch, Python, SFT, RLHF, DPO, PPO, GRPO

Responsibilities

Run post-training work to align model behavior with customer requirements, Run evaluation loops to measure model quality and reliability, Debug complex model failures using traces and scientific feedback, Partner with researchers to translate model advances into usable capabilities, Work with software teams to integrate model behavior into end-to-end workflows, Turn customer learnings into concrete model improvement cycles

Seniority

Senior / Staff, hands-on IC