Research Scientist

About the role

About the role

We’re looking for a top‑tier Research Scientist to join our tech team.

Your core responsibilities will be to:

- Lead Research for Linkup

- Design and implement state-of-the-art retrieval and ranking systems for AI agents

- Prototype, train, and evaluate new models for factual search and multimodal understanding

- Build robust research pipelines, develop, deploy, and iterate on experiments end-to-end

- Master the technical scope of your domain and raise the bar for scientific and engineering rigor

- Collaborate on research roadmaps and drive key modeling and evaluation decisions

- Own large cross-functional initiatives from exploration to production

- Work autonomously alongside the CTO and the rest of the Software & ML teams

- Contribute to a strong research culture through experiment tracking, reviews, and knowledge-sharing

REQUIREMENTS

You’re a great match if you:

- Are excited to help build Google for AI agents- and believe in Linkup’s mission https://www.notion.so/Join-Linkup-9a304f74df4544bf83d9b23c3b31b699?pvs=21

- Have strong experience in research in information retrieval, computer science or machine learning. PhD is preferred, MS. is a must. (5y of experience minimum)

- Bring hands-on experience with LLMs, NLP, embeddings, or information retrieval systems

- HNSW and ANNs are second nature to you

- Care about performance, reliability, and code quality

- Enjoy optimizing performance bottlenecks

- Thrive in a fast-paced, high-ownership startup environment

EXAMPLE PROJECTS

- Train a new embeddings model from scratch

- Build and maintain an evaluations framework to measure the progress of our search engine

- Design a RL framework to integrate AI preferences into our ranking algorithm

OUR STACK

- Node.js / NestJS

- Python

- Java

- PostgreSQL

- OpenSearch

- Vespa

- Apache Storm

- vLLM

- Kubernetes

- GitHub Actions

- Terraform

DETAILS

The ideal candidate will play a central role in our team, partnering closely with the founders to spearhead groundbreaking products. Your research expertise will shape the future of AI‑powered applications and bring our vision to life.

We offer a flexible remote‑work policy- see the details here https://www.notion.so/Linkup-Remote-Work-Policy-d593322ac4c84988b1c7c327d6c4d39e?pvs=21.

Join us and leverage your expertise to push the boundaries of AI!

ABOUT LINKUP

Our Vision

We believe in a future of AI agents and the agentic web. These digital entities can create more value for humanity than we ever could alone, but they depend on the internet to operate, collaborate, take action, and gather information.