Senior Software Engineer Job Description As a Fullstack Web SDK Engineer on our team, you'll play a critical role in building and evolving our core web SDK. You'll help capture high-fidelity, privacy-conscious session data that powers our session replay and analytics tools. Your daily tasks will include diving into the internals of browser technology to build resilient, high-performance client-side code. Collaboration with thoughtful engineers and cross-functional partners is essential for delivering seamless web experiences. You'll contribute across our frontend React app, canvas-based Playback graphics view, and backend Go services. - Engineer performant, reliable features in our web SDK using TypeScript - Contribute to our React-based Playback graphics app, using deep knowledge of browser behavior and canvas rendering - Collaborate with backend engineers to design and build Go-based services that support new capture and analysis capabilities - Troubleshoot cross-browser inconsistencies and edge cases - Partner with stakeholders across Product, Design, and Support to scope work effectively - Participate in technical planning and code reviews Requirements - Proven experience developing and maintaining production-grade JavaScript or TypeScript libraries or SDKs - Demonstrated ability to work with browser APIs, DOM behavior, and rendering engines - Hands-on experience building modern web applications with React, including performance tuning and component design - Backend development experience in a production environment using Go (or similar languages) - A track record of collaborating cross-functionally to scope projects, meet deadlines, and deliver solutions - English language fluency required for collaboration with US-based teams - Bachelor's degree in Computer Science or a related field What We Offer - Autonomy and flexibility in a remote-first work environment - Paid time off and annual company-wide closure - Benefits package for US-based employees and supplemental coverage options for international employees - Professional development opportunities through training programs and career coaching sessions - Productivity stipend and reimbursement for remote colleagues' initial home office setup - Team events and Employee Resource Group activities - Paid parental leave and global fertility and family building benefit - Bereavement leave and miscarriage/pregnancy loss leave