Senior Staff Applications Development Engineer

We are the AI Experience Framework (AIUX) team that builds the platform that powers ServiceNow's AI-first user interfaces. Using modern Lit-based web components, AIUX builds modular, reusable conversational experiences that serve as the technical foundation for conversation-first applications like Employee Slate. This role owns full-stack architectural decisions in a modern JavaScript/component-driven environment, working across AI integration, performance scale, and multi-team coordination — spanning our SSR runtime (server-rendered Lit components, versioned request routing, isolated execution pools) and the ServiceNow Glide platform layer it integrates with. 

What you get to do in this role:   

• Own code from design, implementation, test automation, and delivery of high-quality product to our users 
• Work with product owners to understand detailed requirements and drive the full development lifecycle 
• Build software that is simple to use, allowing customers to extend and customize functionality to meet their specific needs 
• Contribute to the design and implementation of new products and features while enhancing the existing product suite 
• Mentor colleagues and promote knowledge-sharing across teams 
• Apply advanced knowledge of data structures, algorithms, OO design, design patterns, and performance/scale considerations 
• Raise the engineering bar through architecture reviews, code reviews, mentoring, and technical direction 
• Architect modular, reusable component systems for scalability and extensibility 
• Own architecture across the request path — proxy, version-aware routing, server-rendered component runtime, and the ServiceNow platform services it calls into 
• Set technical direction for framework-level APIs (context propagation, layout composition, state management) consumed by every downstream component team 
• Represent AIUX Framework in cross-org architecture decisions and act as an escalation point for the hardest production issues

 

To be successful in this role you have:

• Experience in leveraging or critically thinking about how to integrate AI into work processes, decision-making, or problem-solving. This may include using AI-powered tools, automating workflows, analyzing AI-driven insights, or exploring AI's potential impact on the function or industry.
• 10+ years of professional software engineering experience, with deep expertise in JavaScript and substantial experience in Java or a similar OO language (C++, C#, Go acceptable) 
• Passion for JavaScript and the Web as a platform, reusability, and componentization 
• Advanced experience with modern UI frameworks: Angular, React, Vue, or Lit 
• Advanced knowledge of data structures, algorithms, object-oriented design, design patterns, and performance/scale considerations 
• Advanced knowledge and experience with relational databases: development, troubleshooting, and performance optimization 
• Deep expertise in server-side rendering and hydration, including the failure modes specific to isomorphic rendering (markup mismatches, browser-API leakage into server code) 
• Strong systems-level Node.js experience: process/worker isolation (V8 isolates or equivalent sandboxing), HTTP/1.1 and HTTP/2 semantics, reverse proxying, and designing for concurrent versioned rollouts 
• Comfortable working across a JVM/Maven backend (Java, ServiceNow Glide platform conventions) in addition to a Node/TypeScript SSR stack 
• Demonstrated experience as a technical lead, Staff Engineer, or equivalent senior individual contributor responsible for architecture, technical direction, code quality, and mentoring 
• Track record designing framework-level abstractions (component base classes, context/DI systems, event contracts) consumed by many other engineering teams 
• Ability to make pragmatic architecture decisions across performance, reliability, security, maintainability, and delivery speed 
• Demonstrated capability to manage multiple projects with material technical risk across teams and processes 
• Track record serving as functional lead or technical owner 
• Exposure to multiple technology stacks: Cloud Dev, Platforms, Web Dev, Frameworks, service-oriented architecture 
• Experience designing and architecting modular, reusable component systems 

Preferred — AIUX Framework specific 

• Experience with build systems that emit multiple targets from one component source (server bundles vs. code-split browser bundles) 
• Hands-on experience operating services in Kubernetes: deployment configuration, scaling, rollout/rollback, and incident response 
• Experience building and maintaining observability tooling (Grafana dashboards, Prometheus alerting) for production systems 

 

FD21

For positions in this location, we offer a base pay of $190,900 - $334,100, plus equity (when applicable), variable/incentive compensation and benefits. Sales positions generally offer a competitive On Target Earnings (OTE) incentive compensation structure. Please note that the base pay shown is a guideline, and individual total compensation will vary based on factors such as qualifications, skill level, competencies, and work location. We also offer health plans, including flexible spending accounts, a 401(k) Plan with company match, ESPP, matching donations, a flexible time away plan and family leave programs. Compensation is based on the geographic location in which the role is located and is subject to change based on work location.