Machine Learning Engineer

Let’s start with some numbers:

• H100 SXM: 504 (SuperPod)
• H100 PCI: 128
• A100 SMX: 120
• CPU: 600K cores
• SSD: 350pb
• HDD: 33pb

That is a lot of computing power, so why do we need it?

We’re building Yep, a search engine and LLM from the ground up. To do that at the highest possible level we’ve invested in all this hardware to the extent where our superpod alone reaches 20 PFlops in linpack, placing 30th among the supercomputers of the world… Yep, we mean business!

Let’s put that compute power to use!

What You’ll Do

• Design, develop, and optimize ML models for diverse challenges, including:
• Web-scale content understanding
• Human-computer interaction
• Large language model (LLM) pre-training and fine-tuning
• Innovate through research: prototype and explore proof-of-concept solutions for emerging opportunities in machine learning.
• Build and maintain efficient, scalable production systems to support a high-traffic ecosystem.

What We’re Looking For

• Strong expertise in machine learning and deep learning frameworks (e.g., TensorFlow, PyTorch).
• Proven experience in designing and deploying production-grade ML solutions at scale.
• Knowledge of web-scale systems and an interest in tackling big data challenges.
• Ability to balance research-oriented work with the practicalities of engineering.

Who We Are

Ahrefs builds online SEO tools and creates free educational materials that help millions of website owners around the globe to get more traffic from search engines.

For over 10 years, Ahrefs has been crawling the web, storing and processing petabytes of data and fine-tuning a simple, intuitive user interface. It's now widely regarded as both a must-have tool for marketing professionals and a trusted friend to small business owners.

Ahrefs’ tools and features cover most essential SEO needs like competitor research, keyword research, website audits, rank tracking and much more.

The company was founded in 2010 by Dmytro Gerasimenko and is headquartered in Singapore.

What You'll Get

• Competitive compensation package
• Informal and thriving work atmosphere
• First-class workplace equipment (hardware & tools)
• Perks and fringe benefits

Ahrefs does not engage with agencies or third party recruitment solutions for the roles we hire for. If at any point we need help, we'll let you know!

Who We Are

Our data science team faces a big, exciting challenge: building machine learning models to improve the Fairsearch experience. What a user wants to see when they run a search, and what makes a piece of content better or more relevant than another – these are vital questions that inform how we rerank web pages. Sounds interesting? We'd love to hear from you.