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Senior Staff Software Engineer, JavaScript Runtime & Compilers

ServiceNow


Job Location:

San Diego, CA - USA

Monthly Salary: Not provided by the employer
Posted: 4 November 2026 (5 hours ago)
Application Deadline: 1 February 2027
Vacancies: 1 Vacancy

Job Summary

We are the platform engineers handling app lifecycle at ServiceNow. We develop and maintain the server-side JavaScript engine at the heart of the ServiceNow platform the runtime that powers custom applications workflows and business logic. We ensure apps move smoothly and securely from development to production. This role requires deep expertise in compiler and runtime systems  youll optimize execution engines memory management and performance at the systems level. 

 

What you get to do in this role: 

  • Design and optimize execution engines JIT/AOT compilation pipelines and memory management systems to ensure customer applications run at scale 

  • Build high-quality clean scalable and reusable code by enforcing best practices around software engineering architecture and processes (Code Reviews Unit testing etc.) 

  • Work with product owners to understand detailed requirements and own your code from design implementation test automation and delivery of high-quality product to our users 

  • Implement software that is simple to use allowing customers to extend and customize functionality to meet their specific needs 

  • Mentor colleagues and promote knowledge-sharing across teams on low-level systems engineering performance profiling and optimization techniques 


Qualifications :

To be successful in this role you have:

  • 12 years of experience with Java or similar object-oriented language with at least 5 years working on compiler runtime JIT/AOT systems or language execution engines 

  • Experience integrating AI into software development workflows decision-making or automation using AI-powered tools and technologies.  

  • Strong experience with compiler/runtime systems: execution engines memory management concurrency JIT/AOT compilation performance optimization profiling and debugging 

  • Advanced knowledge of data structures algorithms object-oriented design design patterns and performance/scale considerations at the systems level 

  • Passion for JavaScript and the Web as a platform; experience with modern UI frameworks (Angular React or Vue) 

  • Experience developing troubleshooting and optimizing relational databases 

  • Experience with LLVM language runtime development or low-level systems engineering (strong plus) 

  • Track record working across multiple technology stacks (Cloud Dev Platforms Web Dev Frameworks service-oriented architecture) 

  • Capability to manage multiple projects with material technical risk across teams and processes; may serve as functional lead or technical owner

For positions in this location we offer a base pay of $171900 - $300800 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 religion sex sexual orientation national origin age disability gender identity  veteran status or any other category protected by 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 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. 

From Fortune. 2026 Fortune Media IP Limited. All rights reserved. Used under license.


Remote Work :

Yes


Employment Type :

Full-time


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Learn here. Grow here. Make a difference here. At ServiceNow, our cloud?based platform and solutions deliver digital workflows that create great experiences and unlock productivity for employees and enterprises. We’re growing fast, innovating even faster, and making an impact on our c ... View more

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