OpenRecently verified

Post-Training Research Scientist (LLMs) - Experimental Track

  • Data & Machine Learning
  • Platform: Vetto

About this job

This role is a hands-on research position focused on post-training large language models, where expert annotations are converted into training data and experimental reward signals. It suits a researcher with a PhD or equivalent experience in machine learning or a related quantitative field who can work independently and iterate fast on messy experiments.

What you'll do

  • Design and run post-training experiments on LLMs using SFT and preference-based methods.
  • Turn raw annotation artifacts into training-ready datasets.
  • Prototype reward signals beyond pairwise preferences.
  • Analyze model failure modes and propose data-centric fixes.

Requirements

PythonPyTorchLLM
  • PhD in ML/AI, applied math, statistics, or adjacent field (or equivalent experience)

Pay

Pay not disclosed

The platform does not publish the pay for this job.

Location

The platform has not published which countries are eligible for this job.

How to apply

You apply on Vetto's job board: answer the application questions for the project. If selected, Vetto invites you to work on its tasks.

All Vetto jobs and how the platform works

Source

Official posting: https://job-boards.greenhouse.io/vetto/jobs/4110989009

Last checked on October 8, 2026.

Similar jobs

  • Data & Machine Learning
  • Platform: Alignerr

This contract role asks engineers to write and review step-by-step reasoning traces that show how a language model should plan, use tools, and reach decisions. The output becomes training data meant to make AI systems more reliable on complex, real-world tasks. It suits experienced machine learning engineers and researchers who can work remotely and on their own schedule.

  • Data & Machine Learning
  • Platform: Alignerr

A fully remote contract role where PhD-level biochemists create expert-level problems, author gold-standard solutions, and audit AI-generated biochemical reasoning to train and improve scientific AI models. Ideal for biochemists passionate about scientific rigor who want to shape the accuracy of next-generation AI without requiring prior AI experience.

  • Data & Machine Learning
  • Platform: Mercor
  • Location: United States
  • Level: Intermediate

You will evaluate the methodological quality and scientific rigor of machine learning tasks designed to train and test models at a cutting-edge AI laboratory. You will provide structured feedback on experimental design, model selection and evaluation protocols, critiquing claims against observed results.

Posted August 28, 2026

OpenRecently verified$70-90/hr

Referral link: we may earn a fee. Apply without it

  • Data & Machine Learning
  • Platform: Mercor
  • Location: United States

Join a network of machine learning experts to access occasional jobs with AI laboratories and companies. You will contribute to training and evaluating models, creating tasks based on real-world scenarios, and providing domain feedback for AI research. This program is aimed at engineers with solid experience in machine learning model development and capable of working independently on remote projects.

Posted February 27, 2026

Talent poolRecently verified$70-250/hr

Referral link: we may earn a fee. Apply without it

  • Data & Machine Learning
  • Platform: Handshake AI
  • Location: United States
  • Level: Entry level

Handshake AI seeks skilled PCB and EDA tool users to evaluate AI-generated content and provide feedback on electronics design tasks. Contributors will work flexibly on project-based contract work that involves assessing large language model responses related to PCB layout, schematic capture, and embedded hardware design.

Posted March 10, 2025

OpenRecently verifiedUp to $125/hr
  • Software Engineering
  • Platform: micro1
  • Location: 58 countries

This role enables you to analyze and optimize diverse codebases, as well as design programming tasks to evaluate generative AI models. It is intended for experts in algorithmics and competitive programming problem-solving, capable of working autonomously and providing high-quality technical feedback.

Posted September 14, 2026

OpenRecently verified$50-100/hr

Referral link to micro1's job list: search for this role there. Open this exact job

Keep exploring