[Hiring] Senior Staff Software Engineer @Arc XP

Role Description

We're seeking a Senior Staff Software Engineer to provide senior technical leadership for the design and implementation of Arc XP's next-generation rendering platform. This is a highly visible individual-contributor leadership role for an engineer who can operate at both the architectural and implementation levels. You'll partner with architects, engineering leaders, product managers, and senior engineers to translate Arc XP's Experience Composition strategy into scalable production systems.

• Lead technical design and implementation of Arc XP's next-generation rendering and Experience Composition capabilities.
• Design edge-rendering and edge-composition architectures, including component-level and server-island patterns.
• Lead the shift from TTL-driven regeneration to event-driven render-on-update models.
• Design scalable platform, rendering, and compilation APIs.
• Evolve component and extension architectures that enable reuse and customization without unnecessary forks.
• Help design platform capabilities and APIs for AI systems and agents to programmatically create, compose, and update pages, templates, and components.
• Define migration and interoperability strategies that evolve today's Rendering, Themes, and PageBuilder capabilities.
• Provide senior technical leadership across Rendering, Delivery, Themes, and PageBuilder Editor.
• Design, develop, and operate highly scalable services using TypeScript, Node.js, React, Go, AWS, and modern edge technologies.
• Lead resolution of complex production and architectural issues.
• Drive improvements in reliability, observability, performance, security, and cost.
• Mentor engineers through architecture discussions, design reviews, and hands-on collaboration.
• Use AI-assisted engineering tools thoughtfully for prototyping, implementation, and troubleshooting.

Qualifications

• 8+ years of experience designing, building, and operating highly scalable software systems.
• Significant experience providing technical leadership, setting technical direction, and designing architecture for complex initiatives.
• Deep knowledge of modern web rendering architectures, distributed and event-driven systems, APIs, caching and content delivery, and cloud-native application design.
• Strong experience with JavaScript/TypeScript and modern web frameworks such as React, Astro, Next.js, or comparable technologies.
• Experience designing and operating high-traffic systems where performance, scalability, availability, and reliability are critical.
• Demonstrated ability to translate ambiguous product and platform strategy into technical designs and executable engineering plans.
• Experience designing platform APIs, frameworks, or extensibility models.
• Experience leading architectural initiatives through hands-on implementation and production delivery.
• Experience mentoring engineers and influencing technical direction without formal management authority.
• A BA/BS in Computer Science, Engineering, or a related technical field, or equivalent practical experience, is preferred.

Requirements

• Deep experience in modern rendering and content delivery architectures.
• Experience with CDN and edge-computing platforms such as Cloudflare, Akamai, Fastly, CloudFront, or comparable technologies.
• Experience with edge runtimes such as Cloudflare Workers, Akamai EdgeWorkers, Fastly Compute, or Lambda@Edge.
• Familiarity with Astro, server islands, islands architecture, partial hydration, edge composition or stitching, event-driven regeneration, render-on-update patterns, and modern component architectures.
• Experience designing developer platforms, rendering frameworks, compilation or build systems, component frameworks, or extensible SaaS platforms.
• Experience evolving large-scale production systems while maintaining customer continuity.
• Experience with AWS, observability and distributed tracing, CI/CD, infrastructure automation, and production operations.
• Experience designing APIs or platform capabilities that can be consumed programmatically by AI systems or agents.
• Comfortable using AI-assisted engineering tools for prototyping, implementation, testing, documentation, code review, and troubleshooting.

Benefits

• Competitive medical, dental and vision coverage.
• Company-paid pension and 401(k) match.
• Three weeks of vacation and up to three weeks of paid sick leave.
• Nine paid holidays and two personal days.
• 20 weeks paid parental leave for any new parent.
• Robust mental health resources.
• Backup care and caregiver concierge services.
• Gender affirming services.
• Pet insurance.
• Free Post digital subscription.
• Leadership and career development program.
• Benefits may vary based on the job, full-time or part-time schedule, location, and collectively bargained status.