Staff Full-Stack Software Engineer, Typescript Compilers

Company Description
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
The engineering organization is a dynamic group of builders, thinkers, and problem-solvers dedicated to delivering scalable, AI-powered software products that elevate how organizations work. We value clean architecture, intuitive user experiences, and a culture of continuous improvement. Every engineer here plays a key role in shaping the quality and reliability of our products.
What you get to do in this role:

• Design and develop scalable, maintainable, and reusable software components with a strong emphasis on performance and reliability.

• Collaborate with product managers to translate requirements into well-architected solutions, owning features from design through delivery

• Build intuitive and extensible user experiences using modern UI frameworks, ensuring flexibility for customer-specific needs.

• Contribute to the design and implementation of new products and features while enhancing existing product capabilities.

• Integrate automated testing into development workflows to ensure consistent quality across releases.

• Participate in design and code reviews ensuring best practices in performance, maintainability, and testability.

• Develop comprehensive test strategies covering functional, regression, integration and performance aspects

• Foster a culture of continuous learning and improvement by sharing best practices in engineering and quality

• Promote a culture of engineering craftsmanship, knowledge-sharing, and thoughtful quality practices across the team.

Qualifications
To be successful in this role you have:

• Experience in leveraging critical 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 software engineering, with a track record of delivering high-quality products.
• Proficiency in Python, Java, or similar object-oriented languages.

• Experience with modern front-end frameworks such as Angular, React, or Vue.

• Strong knowledge of data structures, algorithms, object-oriented design, design patterns, and performance optimization

• Familiarity with automated testing frameworks (e.g., JUnit, Selenium, TestNG) and integrating tests into CI/CD pipelines

• Understanding software quality principles including reliability, observability, and production readiness.

• Ability to troubleshoot complex systems and optimize performance across the stack.

• Experience with AI-powered tools or workflows, including validation of datasets, model predictions, and inference consistency.

• Comfort with development tools such as IDEs, debuggers, profilers, source control, and Unix-based systems

Why Join Us

• Build and deliver high-impact software that powers digital experiences for millions of users.

• Collaborate in a culture that values craftsmanship, quality, and innovation.

• Work symbiotically with AI and automation tools that enhance engineering excellence and drive product reliability.

• Be part of a culture that encourages innovation, continuous learning, and shared success.
• 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 $147,300 - $257,800, 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.
Additional Information
Work Personas
We approach our distributed world of work with flexibility and trust. Work personas (flexible, remote, or required in office) are categories that are assigned to ServiceNow employees depending on the nature of their work and their assigned work location. Learn more here . To determine eligibility for a work persona, ServiceNow may confirm the distance between your primary residence and the closest ServiceNow office using a third-party service.
Equal Opportunity Employer
ServiceNow is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, creed, religion, sex, sexual orientation, national origin or nationality, ancestry, age, disability, gender identity or expression, marital status, veteran status, or any other category protected by law. In addition, all qualified applicants with arrest or conviction records will be considered for employment in accordance with legal requirements.
Accommodations
We strive to create an accessible and inclusive experience for all candidates. If you require a reasonable accommodation to complete any part of the application process, or are unable to use this online application and need an alternative method to apply, please contact [email protected] for assistance.
Export Control Regulations
For positions requiring access to controlled technology subject to export control regulations, including the U.S. Export Administration Regulations (EAR), ServiceNow may be required to obtain export control approval from government authorities for certain individuals. All employment is contingent upon ServiceNow obtaining any export license or other approval that may be required by relevant export control authorities.
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