Copy Of Staff Full - stack Software Engineer, Typescript Compilers

Staff Full-Stack Software Engineer, Typescript Compilers

It all started in sunny San Diego, California in 2004 when a visionary engineer, Fred Luddy, saw the potential to transform how we work. Fast forward to today — ServiceNow stands as a global market leader, bringing innovative AI-enhanced technology to over 8,100 customers, including 85% of the Fortune 500®. Our intelligent cloud-based platform seamlessly connects people, systems, and processes to empower organizations to find smarter, faster, and better ways to work. But this is just the beginning of our journey. Join us as we pursue our purpose to make the world work better for everyone.

Job Description

What you get to do in this role:

• Lead design and implementation of high-quality, scalable, and reusable full-stack code that will enable and empower ServiceNow developers
• Architect large, loosely defined technical projects; break down into executable parts for the team
• Collaborate closely with product, SDK (Fluent), and platform teams to evolve ServiceNow's pro-developer ecosystem: the ServiceNow SDK (Fluent) and ServiceNow SDK products
• Drive the evolution of ServiceNow's Fluent DSL and its seamless integration with modern JavaScript modules, the ServiceNow IDE, and other parts of the ServiceNow platform
• Enforce engineering best practices (code reviews, testing, scalability, performance)
• Be opinionated and vocal in architectural and product decisions
• Mentor engineers, drive deep technical exploration, and champion developer experience (DevX)

Qualifications

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
• Experience in using AI Productivity tools such as Cursor, Windsurf, etc. is a plus or nice to have
• 6+ years of experience in developing full-stack applications
• Expert-level knowledge in JavaScript/TypeScript and modern web technologies including but not limited to:
• Hands-on knowledge of at least one popular front-end library/framework (React, Angular, etc...)
• Typescript
• Deep understanding of the TypeScript Compiler (tsc) and how it transforms code
• Experience debugging and resolving compiler errors across large TypeScript codebases
• Comfortable working with the TypeScript Compiler API or tools like ts-morph for AST introspection and transformation
• Advanced Type System: Generics, unions/intersections, conditional and mapped types, utility types (Partial, Omit, etc.)
• Type Safety Techniques: Type guards, narrowing, assertions, discriminated unions
• Type Declarations & Modules: Ambient .d.ts files, module augmentation, ESM vs CommonJS
• Tooling & Config: tsconfig.json, tsc, ts-node, linting (eslint, typescript-eslint), and formatting (prettier)
• Cross-Environment Concerns: DOM typings, Node.js typings, event handling, and runtime compatibility
• Build & Integration: Integration with bundlers (esbuild, vite, webpack), and type-safe APIs/contracts (zod, io-ts)
• AST Structure & Nodes: Understanding of syntax trees, node types, and traversal
• Parsing vs. Transformation: Converting code to AST (parsing), modifying AST (transformation), then generating code
• Visitors & Walkers: Patterns for traversing AST (e.g., depth-first, recursive visitor pattern)
• Source Maps: Mapping transformed code back to the original source
• Event loop, microtasks vs macrotasks, and async behavior
• Web Workers, Service Workers, Shared Workers
• ES Modules, bundlers (Webpack, Rollup, Vite), and tree-shaking
• JSON, structured cloning, and serialization
• Feature detection and polyfilling
• Core APIs – fs, path, http, events, stream, buffer, crypto.
• Async Patterns – event loop, promises, async/await, timers, and error handling.
• Module Systems – ESM vs. CommonJS, module resolution, and caching.
• Familiar with authoring Node-based CLIs (i.e.: yargs, commander)

FD21

For positions in this location, we offer a base pay of $163,600 - $286,300, 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.