Senior Staff Software Engineer - Rendering & Delivery, MediaOS

Arc XP is seeking a Senior Staff Software Engineer to provide technical leadership for its next-generation rendering and digital experience platform. The role focuses on designing and implementing scalable rendering, edge-composition, content delivery, platform API, and AI-enabled experience capabilities while supporting the evolution of existing production systems.

Responsibilities:

• 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, and lead the shift from TTL-driven regeneration to event-driven render-on-update models
• Design scalable platform, rendering, and compilation APIs, and evolve component and extension architectures that enable reuse and customization without unnecessary forks
• Help design the platform capabilities and APIs that let AI systems and agents programmatically create, compose, and update pages, templates, and components
• Define migration and interoperability strategies that evolve today's Rendering, Themes, and PageBuilder capabilities toward the next-generation platform while maintaining customer continuity
• Provide senior technical leadership across Rendering, Delivery, Themes, and PageBuilder Editor, keeping decisions coherent across interconnected areas
• 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, and 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, applying strong engineering judgment to generated output

Requirements:

• 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 spanning multiple systems or teams
• 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
• Deep experience in modern rendering and content delivery architectures, including server-side rendering, static generation, dynamic rendering, hydration, caching and invalidation, and the tradeoffs between rendering at the build layer, origin, edge, and client
• 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, particularly when paired with the ability to evaluate architectural decisions across performance, latency, reliability, scalability, security, and cost
• Experience designing APIs or platform capabilities that can be consumed programmatically by AI systems or agents, including systems that enable the creation, composition, or modification of structured digital experiences
• Comfortable using AI-assisted engineering tools for prototyping, implementation, testing, documentation, code review, and troubleshooting while applying strong engineering judgment to both AI-assisted development and the design of AI-enabled production capabilities