Senior LLM Engineer, R&D

Quick Facts

• Role: Senior LLM Engineer (R&D)

Description

Build and deploy LLM-backed APIs and applications supporting journalistic workflows. Design and implement evaluation, grounding, and fine-tuning best practices to reach target outcomes, then transition features from experimental prototypes to stable production systems. Deploy reliable, high-traffic services in cloud environments and collaborate cross-functionally to translate requirements into technical execution.

Responsibilities

• Design and implement LLM-backed APIs, improving outcomes via evaluation, grounding, and fine-tuning.

• Deploy reliable services in cloud environments (e.g., Google Cloud Platform or AWS) for high-traffic LLM applications.

• Manage the transition of features from prototypes to stable production in a fast-paced environment with evolving requirements.

• Collaborate with designers, product managers, and stakeholders to turn detailed requirements into technical tasks, including accurate estimates and progress updates.

• Maintain comprehensive documentation to support feature handoff and future maintenance.

• Stay current on the evolving AI/LLM landscape, identifying and advocating for new technologies and best practices.

• Support the value of journalistic independence and the mission to seek the truth and help people understand the world.

Requirements

• 5+ years of professional software development or equivalent experience.

• Proficiency with Python and TypeScript/JavaScript.

• Professional experience architecting and shipping LLM-based applications, including multi-step chaining and human-in-the-loop workflows.

• Strong understanding of LLM evaluations, including using instrumentation, monitoring, and golden datasets for accuracy and robustness.

• Experience in algorithmic and AI text processing (e.g., text segmentation, semantic chunking, restructuring).

• Ability to build projects independently and collaborate with a larger team.

Benefits

• Variable pay (U.S. roles, dependent on role): annual bonus and restricted stock may be available.

• Medical, dental, and vision benefits.

• Flexible Spending Accounts (F.S.A.s).

• 401(k) plan with company match.

• Employee stock purchase plan.

• Paid vacation and paid sick days.

• Paid parental leave.

• Tuition reimbursement and professional development programs.

• Temporary position expected through November 2027.