AI Engineer

About Netcraft

Netcraft is the global leader in cybercrime detection and disruption. We’re a trusted partner for three of the four largest companies in the world and many large country governments. We’ve blocked more than 200 million malicious sites and perform takedowns for around one-third of the world’s phishing sites.  

 

Our purpose, passion, and expertise are focused on just one thing: protecting the world from cybercrime.
 

Our passion doesn’t stop at what we do—it shapes how we work, too. We’re proud of our talented team and the value each person brings. That’s why we’ve created a workplace where people feel supported and inspired, from great benefits and wellness programs to fun social events. 

 

The role 

 

A senior/principal AI Engineer at Netcraft should combine deep applied AI/ML expertise, a hands-on and collaborative approach to developing solution architecture, and eventually develop a strong domain knowledge in cyber threat detection and mitigation. The role is highly collaborative, embedding within technical teams to deliver robust, explainable, and impactful AI-based solutions that advance threat detection efficacy and enable Netcraft to continue to scale. 
 

You’ll be:

• Collaboratively designing, training & deploying end-to-end AI systems and rapidly prototyping
  new approaches to detecting phishing, fraud & scams. 

• Improving existing implementations with state-of-the-art models and optimisations 

• Integrating AI services into production environment using Go (Golang) and occasionally Perl. 

• Collaborative and cross-functional, with a proven track record of working with diverse teams to deliver projects. 

• Comfortable learning teams' services and workflows, and capable of mentoring and engaging in knowledge transfers. The intent is to help embed patterns and best practices across multiple teams. 

• Cost-aware, and able to articulate
  business benefits against the often-high run cost of at-scale AI/ML services. 

• On top of the latest developments in the industry, and able to advise on new and alternative approaches to solving problems. 

• Lead Day 2 monitoring & analysis of models. 
  
  

What you’ll need to be successful: 

 

• Advanced knowledge of machine learning, deep learning, and statistical analysis. Massive bonus points if you have experience applying these skills to threat detection, malware analysis, phishing, and/or abuse detection. 

• Experience designing and implementing anomaly detection, classification, clustering, and retrieval across vision and
  language models, ideally for identifying cyber threats (URLs, domains, phishing, botnets, etc.) 

• Hands-on experience building production-grade AI pipelines, including data ingestion, feature engineering, validation, model deployment, and monitoring. 

• Proficient in a major backend language and related ML/AI libraries (e.g. Tensorflow & PyTorch, etc), with a preference for Go. 

• Experience with an MLOps platform like Kubeflow. 

• Demonstrated ability to transition models from prototype to production. 

• Experience assessing various AI/ML technologies and models for fit to problem space, including scenarios where RAG is applicable.  

• Incident response experience, and ability to work with large, noisy, and rapidly evolving threat datasets. 

• Strong background in cloud engineering and containerisation (Docker, Kubernetes), with experience deploying AI services at scale, particularly on AWS via Terraform. 

 

Bonus points if you have: 

 

• Experience with Perl. 

• Experience leveraging threat intelligence feeds for machine learning purposes. 

• Experience with major managed cloud services for general infrastructure and AI/ML service use
  cases, particularly on AWS. 

• Exposure to MCP architecture either as a producer or consumer of services. 

 

The reward package 
 

An excellent range of benefits including:   

• Hybrid and flexible working options  

• Minimum of 33 days holiday per annum (incl. public holidays)  

• Pension scheme membership with 4% employer contributions + NI savings  

• Private health cover, including access to a private GP service  

• Equity tracking scheme, so you can share in the rewards of Netcraft's long-term success (eligibility criteria apply)  

• Comprehensive wellness and support provisions  

• Enhanced family leave provisions  

• Life Assurance  

• Two days paid Volunteering Leave per year  

• Free meals, drinks and snacks provided daily in the offices  

• Regular social events such as board game nights, big summer party and annual kick-off  

• Inclusive culture and environment, where you’ll feel genuinely valued and respected; and  

• A tax-efficient cycle to work scheme.  

 

Diversity, Equity and Inclusion
 

 

This is very important to us and through our ally network we support under-represented groups. We seek to maintain a working environment that is free from bias, harassment or discrimination, and we encourage candidates from any background to apply, regardless of their gender, gender identity, sexual orientation, race/ethnicity, ability/disability, age, religion, or any other specific characteristics.  

 

We’re happy to make adjustments to our hiring process to ensure that all candidates can participate fully and comfortably. 

 

Please note Netcraft does not accept any unsolicited approaches from external recruiters.