Darwinium (darwinium.com) is another example. Approach here involves a combination of profiling and step-transition probabilities; idea is that a customer can ring-fence a particular area of a digital estate where they might want to challenge or block an agent - eg a payment, due to chargeback risks. Precursor at least for now seems more focused on site scraping multiple docs from the same site.
Darwinium | Senior Fullstack Engineer (Frontend focused) | Enterprise Fraud & Risk Management | Remote (GMT+11 – Sydney)
Darwinium helps some of the world’s biggest companies stop fraud before it happens — without breaking the experience for genuine customers. We do this through a unique edge-deployed architecture that provides real-time visibility and control across every customer journey.
We’re a VC-backed startup of 35 people, with engineering and product based in Sydney. The founding team previously built and exited companies in the fraud and security space (including billion-dollar outcomes).
The role: We’re looking for a senior fullstack engineer who enjoys working across boundaries from TypeScript frontends and backend services to data pipelines and distributed systems. You’ll work closely with our platform and product teams to build the tools that power customer fraud detection and orchestration. Someone who has built vscode extensions or has worked closely in the fraud or security space would be a bonus
Our stack: Rust for the engine, ClickHouse for persistence, TypeScript (React + Node) for frontend and ancillary services, deployed globally at the edge.
We do quite a lot of this using webviews in vscode over at Darwinium. Similar process that involves postMessages between the UI container and the host containing the LSP. Biggest challenge I had with this was figuring out how to map a diagnostic from the language server (which is inherently range-based) to a UI component that would display it - it involves a fairly intricate pubsub system and mapping UI components explicitly to parts of a tree. Would love to share it eventually.
Occasionally i write on https://medium.com/@bendavey or contribute to the odd small project on github.com/harrylepotter