JavaScript Virtual Machine Compiler Engineer jobs in United States
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Apple · 2 months ago

JavaScript Virtual Machine Compiler Engineer

positionCupertino, California, United States
timeFull-time
remoteOnsite
seniorityMid Level
money$147K/yr - $272K/yr

Apple is seeking a JavaScript Virtual Machine Compiler Engineer to join the JavaScriptCore team. In this role, you will improve the performance and security of JavaScript and WebAssembly execution across Apple products by enhancing the JIT compilers and runtime systems.

AppsArtificial Intelligence (AI)BroadcastingDigital EntertainmentFoundational AIMedia and EntertainmentMobile DevicesOperating SystemsTVWearables
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Comp. & Benefits
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H1B Sponsor Likelynote

Responsibilities

You will work across all areas of the engine, improving the performance, security, and stability of the engine, as well as compatibility with other browsers
You will also help guide the evolution of the JavaScript and WebAssembly languages via public standards
You will drive new innovations, add new optimizations, tune performance, implement language features, in addition to diagnosing and fixing existing problems

Qualification

C++CompilersJavaScriptWebAssemblyPerformance analysisGarbage collectorsDebuggingAssembly-level programmingVMs with JIT compilersWeb browsersCritical thinkingCommunication skills

Required

BS in computer science or equivalent
Experience programming in modern C++
Excellent debugging, critical thinking, and communication skills
Experience with compilers, parsers, and interpreters
Experience with assembly-level programming
Experience with performance analysis
Experience with memory allocators and garbage collectors

Preferred

Hands-on experience with VMs with just-in-time compilers (e.g. JavaScript engines and JVMs)
Experience with web browsers
Knowledge of JavaScript and WebAssembly

Benefits

Comprehensive medical and dental coverage
Retirement benefits
A range of discounted products and free services
Reimbursement for certain educational expenses — including tuition
Discretionary bonuses or commission payments
Relocation

Company

Apple

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Apple is a technology company that designs, manufactures, and markets consumer electronics, personal computers, and software.
dateFounded in 1976
location
Cupertino, California, USA
people-size10001+ employees
web-link
https://www.apple.com

H1B Sponsorship

Apple has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (6998)
2024 (3766)
2023 (3939)
2022 (4822)
2021 (4060)
2020 (3656)

Funding

Current Stage
Public Company
Total Funding
$5.67B
Key Investors
Berkshire HathawayMicrosoftSequoia Capital
2025-05-05Post Ipo Debt· $4.5B
2025-01-16Post Ipo Debt· $0.31M
2021-04-30Post Ipo Equity

Leadership Team

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Tim Cook
CEO
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Craig Federighi
SVP, Software Engineering

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