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Meridian Labs

Principal Full-Stack Engineer

boston, MA

Check who can apply and the requirements below before continuing.

About this opportunity

Meridian Labs lists this Principal Full-Stack Engineer opportunity in boston, Massachusetts. Review the employer’s description below for duties, qualifications and application requirements.

Job description

Meridian Labs is building an open source platform for the research and evaluation of large language models. We’re looking for a Principal Full-Stack Engineer to contribute to development across our platform — from the React-based interfaces researchers use daily to the Python infrastructure that powers evaluation workflows.

You’ll help build the vision and architecture for how AI researchers interact with and understand model behavior. This role combines deep technical leadership across the stack with product sensibility and stewardship of our open source community.

Responsibilities

Build and ship production features using Python and related technologies

Own major systems and make high-impact technical decisions that shape the product

Mentor other engineers and elevate the team’s capabilities across the stack

Drive product direction by synthesizing user feedback and identifying opportunities

Steward our open source community—setting standards, reviewing PRs, and engaging contributors

Communicate technical strategy to leadership and stakeholders

Minimum Qualifications

10+ years of software engineering experience

3+ years building production systems in Python

Experience leading architecture for complex full-stack applications

Track record of owning and delivering major product initiatives

History of mentoring engineers and influencing technical direction

Strong interpersonal skills and collaborative mindset

Bachelor’s degree in CS or related field (or equivalent experience)

Preferred Qualifications

Background in data visualization or complex UI for technical users

Experience leading open source projects or communities

Familiarity with AI safety, model evaluation, or ML operations

Experience with Inspect AI or similar evaluation platforms

Experience with cloud infrastructure and deployment

Location

Meridian Labs is based in Boston, MA. We prefer in-person or hybrid work.

Compensation

$225,000 – $325,000 with benefits, commensurate with experience.

Applying

To apply, please email the following to :

Your resume

LinkedIn URL (if available)

GitHub URL (if available)

A brief summary of why you’re interested in joining Meridian Labs

#J-18808-Ljbffr

Worksite address

boston, MA, 02298, US

Who can apply

Review the original listing for work authorization, qualifications and employer requirements.

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