Senior Web Compatibility Engineer

Role overview

A privacy-focused technology company is hiring a senior engineer to own web compatibility across its browser products on desktop and mobile platforms. The position centers on diagnosing why third-party sites break, distinguishing site defects from browser issues, and shipping durable fixes that protect user experience. The work sits on a dependability engineering team that values end-to-end ownership of incidents, tooling projects, and the broader compatibility triage process.

Responsibilities

- Lead web compatibility triage and serve as the resident expert on root-cause analysis - Reverse-engineer how sites detect privacy protections and develop countermeasures - Build shims for browser APIs so sites function across different engines and system webviews - Drive incident response when high-traffic sites break, shipping fixes across every platform - Develop agent pipelines and automation that reproduce and categorize reported breakage - Refine triage processes and projects that reduce churn and keep users coming back

Requirements

- 7+ years of experience building and debugging complex web applications with vanilla JavaScript - Deep familiarity with web standards, web components, and browser APIs - Strong ability to reverse-engineer obfuscated third-party code and distill minimal reproductions - Demonstrated experience triaging issues, leading incident response, and communicating with technical and non-technical stakeholders - Comfort leading complex, ambiguous projects with minimal oversight - Bonus: experience with Swift, Kotlin, C#, C++, or Python, plus shipping code beyond the web in native or desktop clients

Benefits and work setup

- Annual compensation of $178,500 USD plus stock options - Remote-first, full-time at approximately 40 hours per week with no core hours - Company-sponsored health benefits limited to U.S.-based team members - Paid parental leave, office setup, and co-working allowances - Two required in-person gatherings per year (one all-hands and one team retreat, each roughly 4-5 days) - On-camera video meeting expectations and a background check required for hire