BackendEngineer

## About the Slash team You'll join the team behind Riot's most ambitious product. Slash is email security that does what SPF, DMARC, and traditional filters can't: it reads emails the way an attacker writes them. We combine semantic analysis with technical signals to catch the sophisticated attacks that slip through everything else — and when something looks off, Albert steps directly inside the email to warn the employee before they click. Email security is a brutal problem. Attackers iterate fast, the false-positive tax is unforgiving, and "almost right" gets people phished. The team owns it end-to-end: detection logic, in-email alerts, the collective riposte that pulls confirmed threats from every inbox, and the Google Workspace and Microsoft 365 integrations underneath. The team is small, senior, and trusted. Engineers own features end-to-end and shape the product alongside PMs, designers — if a detection rule is wrong, you fix it. We ship fast, review hard, and use AI tooling aggressively to do both. ## About the role Ship new Slash features end-to-end: detection logic, in-email experiences, admin tooling. Build robust systems that analyze millions of emails a day with the latency and reliability email security demands. Organize the backend code base and shape the standards the team follows. Research, pitch, and prototype solutions to hard problems. ## How we work with AI AI tooling isn't a perk at Riot — it's how we build. Every engineer has a Claude Max plan and access to Codex, and we expect you to use them daily. Concretely, that means: Writing and reviewing code with Claude Code as a first-class collaborator, not an autocomplete. Using MCP integrations so your AI tools have real context on our codebase, tickets, and specs. Treating AI-first workflows as part of the craft: prompting well, knowing when to delegate to an agent vs. write it yourself, and sharing what works with the team. Building and improving internal automation pipelines. If AI-assisted dev