Senior Staff Software Engineer, JavaScript Runtime, Compilers

ServiceNow

. Design and optimize execution engines, JIT/AOT compilation pipelines, and memory management systems .

Posted 11/2/2026full-timeRemote • California • United StatesSenior💰 $171,900 - $300,800 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive expertise in designing and optimizing execution engines, JIT/AOT compilation pipelines, and memory management systems, with a strong focus on performance optimization and scalable software development. Proven ability to mentor teams and enforce best practices in software engineering, including code reviews and unit testing.

Highest-signal resume keywords

Java ProgrammingCompiler/Runtime SystemsJIT/AOT CompilationPerformance OptimizationModern UI Frameworks

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

JavaCompiler SystemsExecution EnginesMemory ManagementConcurrencyPerformance ProfilingDebuggingData StructuresAlgorithmsObject-Oriented Design

Soft Skills

MentoringKnowledge SharingCollaborationProject Management

Tools & Technologies

AI-Powered ToolsLLVMRelational DatabasesAngularReactVue

Industry Keywords

Software EngineeringExecution EnginesPerformance OptimizationSystems EngineeringService-Oriented Architecture

Tech Stack

Tools & technologies

AngularCloudJavaJavaScriptReactVue.js

About the role

Key responsibilities & impact

Design and optimize execution engines, JIT/AOT compilation pipelines, and memory management systems
Ensure customer applications run at scale
Build high-quality, clean, scalable, and reusable code
Enforce software engineering architecture and process best practices, including code reviews and unit testing
Work with product owners to understand detailed requirements
Own code from design through implementation, test automation, and delivery
Implement simple-to-use software enabling customers to extend and customize functionality
Mentor colleagues and promote knowledge-sharing across teams on low-level systems engineering, performance profiling, and optimization techniques

Requirements

What you’ll need

12+ years of experience with Java or similar object-oriented language
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, including 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 such as 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, including Cloud Dev, Platforms, Web Dev, Frameworks, and service-oriented architecture
Capability to manage multiple projects with material technical risk across teams and processes; may serve as functional lead or technical owner

Benefits

Comp & perks

Equity (when applicable)
Variable/incentive compensation
Health plans
Flexible spending accounts
401(k) Plan with company match
ESPP
Matching donations
Flexible time away plan
Family leave programs
Flexible work persona