Senior Web Security Engineer, Browser Platform

This Senior Software Engineer role builds next-generation security tools and infrastructure for Snowflake's engineering teams. The engineer will develop guardrails, scanning, and policy controls for AI-assisted software development, and design security services for multi-tenant systems, partnering with product managers to drive the security roadmap.

This Senior Web Compatibility Engineer ensures websites function correctly in DuckDuckGo's browsers across platforms by reverse-engineering site detection of privacy protections, shimming browser APIs, and building LLM agent pipelines for automated breakage triage. The engineer leads incident response for top site breakages and ships durable fixes. Requires deep web platform knowledge and experience with browser internals.

This Senior Product Designer role is the first design systems role at DuckDuckGo, owning the design system from audit to roadmap and scaling it across platforms and products like Duck.ai and Search. The designer leads high-impact projects, communicates recommendations with documentation and success metrics, and creates frameworks like tokens and libraries. Requires 7+ years in product or design systems roles with 2+ years at senior level at global consumer brands.

This role leads DuckDuckGo's most complex product partnerships, sourcing, negotiating, and scaling high-impact deals that enhance products like Duck.ai and Search Assist. The manager will create 0-to-1 playbooks for first-of-their-kind partnerships, structuring deals where product, economics, and strategic value are defined together, while working cross-functionally with Product, Engineering, and Finance. The role requires 8+ years of strategic partnerships experience, with a focus on navigating AI market dynamics and creating new distribution channels.