Jobs in the United States

25+ jobs

Group jobs by employerEmail me new jobs Save this search

Added 1 min ago
S
Community/Property Manager - HOA Managed Communities (Portfolio manager)
SpectrumAM
San Antonio, TX
- $57,500 USD / year
…reimagine a vibrant work environment, focused on support, career development, fun, autonomy, and strong human connections among…
Added 1 min ago
Store Manager - Bench
Dollar Tree
Owensboro, KY
Your natural leadership skills and ability to inspire teams to deliver exceptional customer service make you the right person for our Store Manager in Training position. Join our team today…
Added 1 min ago
Store Manager - Bench
Dollar Tree
Madisonville, KY
Your natural leadership skills and ability to inspire teams to deliver exceptional customer service make you the right person for our Store Manager in Training position. Join our team today…
Added 1 min ago
Store Manager
Dollar Tree
Hastings, NE
Your natural leadership skills and ability to inspire teams to deliver exceptional customer service make you the right person for our Store Manager in Training position. Join our team today…
Added 2 mins ago
Senior UI/UX Designer
Amentum
Merrifield, VA · Arlington, VA
Day shift, Monday through Friday · Office environment, light physical demands, must have ability to attend to mental tasks for the duration of the workday
Added 2 mins ago
Senior UI/UX Designer
Amentum
Merrifield, VA · Arlington, VA
Day shift, Monday through Friday · Office environment, light physical demands, must have ability to attend to mental tasks for the duration of the workday
Added 5 mins ago
Ortho/Neuro Registered Nurse / RN
Emory Healthcare
Atlanta, GA
Ongoing mentorship, development, and leadership programs...And more!!!
Added 7 mins ago
MT
Manufacturing Alignment Engineer (Thin FIlms/Diffusion)
Micron Technology, Inc.
Manassas, VA
- $107,000 to $254,000 USD / year
At Micron Technology, we are redefining how the world uses information to enrich life through the development of innovative memory and storage solutions. As a Manufacturing Alignment…
Added 7 mins ago
W
Pharmacist
Walgreens
KANSAS CITY, MO
- $60.9 to $82.3 USD / hour
Walgreens University – Free training, certifications, and leadership development, plus tuition discounts at 30+ universities
Added 7 mins ago
W
Pharmacist
Walgreens
BOISE, ID
- $60.9 to $82.3 USD / hour
Walgreens University – Free training, certifications, and leadership development, plus tuition discounts at 30+ universities
Added 7 mins ago
Darwin Runtime Engineer, Core OS
Apple
Cupertino, CA
…independently, with a desire to learn and develop technical leadership. Team members are welcome and encouraged to participate in design discussions, code reviews, and development across…
Added 7 mins ago
Subject Matter Expert I
Node.Digital
Arlington, VA
Must have an active TS/SCI Clearance (Must Have Top Secret) · Must have an active TS/SCI clearance
Added 8 mins ago
CM
Paralegal
Community Memorial Healthcare
Ventura, CA
- $35.86 to $49.54 USD / hour
…competitive benefits, along with great career choices, training, and leadership development. Our total rewards package provides benefits that support you and your family’s health and…
Added 9 mins ago
Manager of Medicare Advantage and Commercial Revenue
Ascension Health
Saint Louis, MO
+ Staff Leadership: Manage reimbursement team operations, hiring, evaluations, and ongoing staff development.
Added 9 mins ago
Manager of Payer Revenue Medicare
Ascension Health
Saint Louis, MO
+ 3 years of leadership or management experience preferred.
Added 10 mins ago
AG
Senior Vice President of Technology - Data Analytics and Population Health Consulting
Alera Group
UNAVAILABLE
- $225,000 to $250,000 USD / year
…to identify cost drivers, improve health outcomes, evaluate program performance, and guide benefits…
Added 12 mins ago
Clinical Research Nurse (RN)
The US Oncology Network
Denton, TX
Current BLCS or ACLS certification required · Minimum 1 year of RN experience required
Added 14 mins ago
TF
Youth Counselor (6177)
Together for Youth
Albany, NY
- $25.5 to $26.75 USD / hour
The Non-Secure Detention Counselor plays a vital role in ensuring the safety, well-being, and positive development of at-risk youth in a short-term residential detention facility.…
Added 14 mins ago
Ortho/Neuro Registered Nurse / RN
Emory Healthcare
Atlanta, GA
Ongoing mentorship, development, and leadership programs...And more!
Added 15 mins ago
AC
Development Policy Analyst
Adams County
Brighton, CO
- $39.76 to $57.66 USD / hour
The Community and Economic Development (CED) Department serves Adams County through an integrated and equitable approach to community planning and investment. The department partners with…
Added 15 mins ago
Retail Assistant Manager (Assistant Brand Experience Leader)-WARD PARKWAY MALL
Bath and Body Works
Kansas City, MO
Performance-based sales bonus program for store leadership positions.
Added 17 mins ago
Instructor, Writing
New College of Florida
Sarasota, FL
The New College of Florida Writing Program (Sarasota, FL) invites applications for a non-tenure-track (NTT) Instructor of Writing, who will oversee the Writing Resource Center (WRC).The…
Added 17 mins ago
MP
Fee For Service Outpatient Therapist
Merakey Philadelphia
Philadelphia, PA
- $35 to $38 USD / hour
The therapist is a primary member of a treatment team in the clinic behavioral health program for Merakey. Essential responsibilities include delivering therapy services (individual,…
Added 19 mins ago
SO
Public Health Community Engagement Strategist (MA 5) DOH9019
State of Washington
Remote, United States
- $6,542 to $8,801 USD / month
Advise agency leadership and program teams on community engagement, health equity, and policy and systems change strategies, developing tools, training, and resources to strengthen agency…
Added 19 mins ago
SO
Policy and Operations Manager (TPS 4)
State of Washington
Tumwater, WA
- $7,399 to $9,955 USD / month
Provide tax policy, program administration, budget, and planning recommendations to leadership.

Darwin Runtime Engineer, Core OS

Cupertino, CA, United States

The base pay range for this role is between $129,300 and $225,300, and your base pay will depend on your skills, qualifications, experience, and location.

Apply on jobs.apple.com About employer

Applications open in a new tab.

Job details

Pay: The base pay range for this role is between $129,300 and $225,300, and your base pay will depend on your skills, qualifications, experience, and location.
Experience: 0-3+ years of relevant industry experience in low level systems programming
Posting language: English
Posted: Nov 10, 2026

Original job description

Summary The people here at Apple don’t just build products, we build the kind of wonder that revolutionise entire industries. Imagine what you could do here! Do you have a passion for understanding how each line of code affects all the others? In the Core Operating Systems group ensuring the OS is inseparable from each device’s identity as a whole. That’s because this group is committed to building fully integrated operating systems that combine hardware, software, and apps into a single Apple experience. Your dedication to cross-disciplinary collaboration will help develop groundbreaking technologies, such as iOS, macOS, watchOS, and tvOS. By crafting these distinct, complete user experiences, you’ll continue to uphold and advance the excellence people expect from Apple devices! The Darwin Runtime team in Core OS is looking for enthusiastic engineers interested in developing low-level system technologies for Apple’s operating systems.

Description The Darwin Runtime team is responsible for building the low-level runtime technologies like Grand Central Dispatch (GCD), secure inter-process communication systems, memory allocator, threading library, and concurrency and synchronization primitives. The team operates at the intersection of operating systems, programming language design, systems security, and high-performance computing. As a Software Engineer on the team, you'll work closely with kernel engineers, security architects, and framework developers to deliver foundational technologies that enable Apple's next-generation computing platforms.The ideal candidate should be self-motivated and effective in operating independently, with a desire to learn and develop technical leadership. Team members are welcome and encouraged to participate in design discussions, code reviews, and development across multiple technologies. Our environment fosters technical innovation, meaningful technology ownership, and a liberating amount of autonomy.

Responsibilities

You will be responsible for working on a range of technologies that form the foundation of Apple’s operating systems. The work would include responsibilities such as: Design and implement new features and APIs for Darwin Runtime technologies like GCD, XPC, pthread, and malloc Design and implement IDL compiler frontend and backend systems, including lexical analysis, parsing, semantic analysis, and code generation for both C and Swift targets Develop and maintain high-performance runtime libraries that handle secure communication, memory management, and component lifecycle across different execution environments Optimize code generation, runtime performance, and memory usage to meet strict performance requirements for low-level systems

An engineer in the Secure Runtime team would regularly:

Participate in all phases of software development cycle: from problem definition and design, through implementation, testing, and debugging Diagnose and resolve issues across different layers of the stack Work with cross functional teams to enable developer and product requirements

Minimum Qualifications BS or MS in Computer Science or equivalent degree 0-3+ years of relevant industry experience in low level systems programming Passion for low-level system technologies Fluency in the C programming language Experience with UNIX-like systems System design and architecture skills Strong understanding of operating system fundamentals like threading, synchronization primitives, inter-process communication, scheduling, and virtual memory Excellent collaborative skills, with the ability to work with a team to design system architecture

Preferred Qualifications Experience with compiler design, including lexical analysis, parsing, semantic analysis, and code generation Knowledge of capability-based security models, sandboxing, and secure IPC mechanisms Knowledge of operating system implementation, hardware architecture and assembly programming Knowledge of Swift or Objective-C Skilled at interface and/or API design Experience with lldb or gdb

Pay & Benefits At Apple, base pay is one part of our total compensation package and is determined within a range. This provides the opportunity to progress as you grow and develop within a role. The base pay range for this role is between $129,300 and $225,300, and your base pay will depend on your skills, qualifications, experience, and location.

Apple employees also have the opportunity to become an Apple shareholder through participation in Apple’s discretionary employee stock programs. Apple employees are eligible for discretionary restricted stock unit awards, and can purchase Apple stock at a discount if voluntarily participating in Apple’s Employee Stock Purchase Plan. You’ll also receive benefits including: Comprehensive medical and dental coverage, retirement benefits, a range of discounted products and free services, and for formal education related to advancing your career at Apple, reimbursement for certain educational expenses - including tuition. Additionally, this role might be eligible for discretionary bonuses or commission payments as well as relocation. Learn more about Apple Benefits

Note: Apple benefit, compensation and employee stock programs are subject to eligibility requirements and other terms of the applicable plan or program.

EEO Statement Apple is an equal opportunity employer that is committed to inclusion and diversity. We seek to promote equal opportunity for all applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, Veteran status, or other legally protected characteristics. Learn more about your EEO rights as an applicant

Accessibility At Apple, we believe accessibility is a fundamental human right. You’ll find that idea reflected in everything here - in our culture, our benefits and our digital tools. By welcoming as many perspectives as possible, we help you build a career where you feel like you belong.

Learn about accessibility in Apple’s workplace

Learn about reasonable accommodations for job applicants

Application Deadline Apple accepts applications to this posting on an ongoing basis.

Apply on jobs.apple.com About employer

More about this job

Skills

Oracle Darwin
Apple macOS
Communication skills
Leadership
IDL
C
Swift
Debugging
Computer science
UNIX
Scheduling
Assembly
Objective C
API development

Report this job

Work requirements

Jobs in the United States