Web Crawling Engineer

About Mistral

Mistral provides full-stack AI solutions: from frontier models to developer tools, applications, and compute. We partner with enterprises tackling the hardest problems—across high-stakes industries like finance, manufacturing, defense, healthcare, and the public sector—co-creating customized AI systems that they can run on their terms.

We are a dynamic, collaborative team passionate about AI and its potential to transform society. Our diverse workforce thrives in competitive environments and is committed to driving innovation. Our teams are distributed between Europe, North America, Asia and the Middle East. We are creative, low-ego and team-spirited.

About Mistral

At Mistral AI, we believe in the power of AI to simplify tasks, save time, and enhance learning and creativity. Our technology is designed to integrate seamlessly into daily working life.

We democratize AI through high-performance, optimized, open-source and cutting-edge models, products and solutions. Our comprehensive AI platform is designed to meet enterprise as well as personal needs. Our offerings include Le Chat, La Plateforme, Mistral Code and Mistral Compute - a suite that brings frontier intelligence to end-users.

We are a dynamic, collaborative team passionate about AI and its potential to transform society. Our diverse workforce thrives in competitive environments and is committed to driving innovation. Our teams are distributed between France, USA, UK, Germany and Singapore. We are creative, low-ego and team-spirited.

Join us to be part of a pioneering company shaping the future of AI. Together, we can make a meaningful impact. See more about our culture on .

About Mistral

At Mistral AI, we believe in the power of AI to simplify tasks, save time, and enhance learning and creativity. Our technology is designed to integrate seamlessly into daily working life.

We democratize AI through high-performance, optimized, open-source, and cutting-edge models, products, and solutions. Our comprehensive AI platform is designed to meet enterprise needs, whether on-premises or in cloud environments. Our offerings include le Chat, the AI assistant for life and work.

We are a dynamic, collaborative team passionate about AI and its potential to transform society.

Our diverse workforce thrives in competitive environments and is committed to driving innovation. Our teams are distributed between France, the USA, the UK, Germany, and Singapore. We are creative, low-ego, and team-spirited.

Join us to be part of a pioneering company shaping the future of AI. Together, we can make a meaningful impact. See more about our culture on .

Role Summary

We are looking for a skilled and motivated Web Crawling Engineer to join our dynamic engineering team. The ideal candidate should have a solid background in distributed web crawling, scraping and data extraction, with experience using advanced tools and technologies to collect and process large-scale data from diverse web sources at large scale.

What you will do

As a Web crawling engineer, you will be responsible for:

• Developing and maintaining web crawlers using Go to extract data from target websites.

• Utilize headless browsing techniques, such as Chrome DevTools, to automate and optimize data collection processes.

• Collaborate with cross-functional teams to identify, scrape, and integrate data from APIs and web pages to support business objectives.

• Create and implement efficient parsing patterns using tokenizers, regular expressions, XPaths, and CSS selectors to ensure accurate data extraction.

• Design and manage distributed job queues using technologies such as Redis, Aerospike and Kubernetes to handle large-scale distributed crawling and processing tasks.

• Develop strategies to monitor and ensure data quality, accuracy, and integrity throughout the crawling and indexing process.

• Continuously improve and optimize existing web crawling infrastructure to maximize efficiency and adapt to new challenges.

About you

Core programming and web technologies

• Proficiency in Go (Golang)/Rust/Zig for building scalable and efficient web crawlers.

• Deep understanding of TCP, UDP, TLS and protocols and web communication.

• Knowledge of HTML, CSS, and JavaScript for parsing and navigating web content.

• Familiarity with cloud platforms (AWS, GCP), orchestration (Kubernetes, Nomad), and containerization (Docker) for deployment.

Data Structures & Algorithms

• Mastery of queues, stacks, hash maps, and other data structures for efficient data handling.

• Ability to design and optimize algorithms for large-scale web crawling.

Web Scraping & Data Acquisition

• Hands-on experience with networking and web scraping libraries.

• Understanding of how search engines work and best practices for web crawling optimization.

Databases & Data Storage

• Experience with SQL and/or NoSQL databases (knowing Aerospike is a bonus) for storing and managing crawled data.

• Familiarity with data warehousing and scalable storage solutions.

Distributed Systems & Big Data

• Knowledge of distributed systems (e.g., Hadoop, Spark) for processing large datasets.

Bonus Skills (Nice-to-Have)

• Experience with web archiving projects & tooling, open-source archiving is a big plus!

• Experience applying Machine Learning to improve crawling efficiency or accuracy.

• Experience with low-level networking programming and/or userspace TCP/IP stacks.

Hiring Process

Here is what you should expect:

• Introduction call - 35 min

• Hiring Manager Interview - 30 min

• Live-coding Interview - 45 min

• System Design Interview - 45 min

• Deep dive interview (optional) - 60min

• Culture-fit discussion - 30 min

• Reference checks

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Location and Benefits

This role is primarily based in one of our European offices — Paris, France and London, UK. We will prioritize candidates who either reside there or are open to relocating. We strongly believe in the value of in-person collaboration to foster strong relationships and seamless communication within our team.

In certain specific situations, we will also consider remote candidates based in one of the countries listed in this job posting — currently France, UK, Germany, Belgium, Netherlands, Spain and Italy. In any case, we ask all new hires to visit our Paris HQ office:

• for the first week of their onboarding (accommodation and travelling covered)

• then at least 2 days per month

What we offer

Competitive salary and equity

‍⚕️ Health insurance

Transportation allowance

Sport allowance

Meal vouchers

Private pension plan

Parental : Generous parental leave policy

Visa sponsorship

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What we offer

We offer a comprehensive benefits package designed to support your well-being, growth, and work-life balance. Benefits vary by country and may include healthcare coverage, parental leave, retirement plans, relocation support, wellness programs, meal and transportation allowances, and other location-specific perks.

For the most up-to-date details on benefits available in your location, please refer to our Benefits page .

Privacy Policy

Your privacy matters to us. You can learn more about how we handle your personal data in our Applicant Privacy Policy .