Full-Stack Software Engineer

Summary

Join ServiceNow as a Full-Stack Engineer to lead the design and implementation of high-quality, scalable, and reusable code. You will architect large technical projects, collaborate with product and platform teams, and drive the evolution of ServiceNow's Fluent DSL. Responsibilities include enforcing engineering best practices, making architectural and product decisions, and mentoring engineers. This role requires 6+ years of full-stack development experience, expert-level JavaScript/TypeScript knowledge, and a deep understanding of modern web technologies and the TypeScript compiler. The ideal candidate will have experience integrating AI into work processes and using AI productivity tools. ServiceNow offers a competitive salary, equity, benefits, and a flexible work environment.

Requirements

• 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
• 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)

Responsibilities

• 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)

Preferred Qualifications

Experience in using AI Productivity tools such as Cursor, Windsurf, etc. is a plus or nice to have

Benefits

• Health plans, including flexible spending accounts
• A 401(k) Plan with company match
• ESPP
• Matching donations
• A flexible time away plan
• Family leave programs