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Principal or Sr. Principal PCB Layout Design Engineer
Northrop Grumman
Annapolis
Basic Qualifications for Senior Principal Layout Design Engineer:
Added just now
Principal Engineer Digital/Sr Principal Engineer Digital
Northrop Grumman
Los Angeles
The Digital Engineer will be responsible for design and verification of digital systems on a safety-critical development program. Candidate is required to have extensive knowledge of…
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Systems Test Engineer - Level 3 or 4 (9048)
Northrop Grumman
Aurora
We are seeking mid- to senior-level Systems Test Engineers (Level 3 and Level 4) to join an Agile development team delivering mission-critical capabilities. In this role, you will define…
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Principal/Senior Principal Space Systems Engineer Software Test*
Northrop Grumman
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As a Space Systems Engineer, you’ll help shape the spacecraft and mission across the full lifecycle - from mission architecture and concept development through detailed analysis,…
Added 1 min ago
Sr. Staff Optomechanical Engineer - 6
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You will serve as a senior technical leader and subject-matter expert on optomechanical design and performance across multiple programs. You will work as part of, and often serve as a…
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Architectural Facilities Engineer - Level 3 or 4
Northrop Grumman
Clearfield
In this position the Principal Facilities Engineer or Senior Principal Facilities Engineer will plan, design and oversee the reconfiguration, maintenance, and alteration of equipment,…
Added 3 mins ago
Senior Mobile Engineer (React Native and iOS)
Fiserv
Omaha, NE
As a Senior Software Engineer, Mobile (React Native & iOS), you will design, develop, and maintain secure, scalable mobile applications across React Native and native iOS platforms.…
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Senior Product Manager
Acxiom
Omaha, NE
The Senior Product Manager for Clean Rooms and Data Delivery Platforms is responsible for defining and executing Acxiom’s strategy for client and partner based clean-room implementations…
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Senior Manager - Quality Engineering
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- $126,200 to $264,100 USD / year
The Senior Manager, Quality Engineering is responsible for leading the Quality Engineering organization and ensuring the effective execution of quality strategies across manufacturing…
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Network Security Engineer Master
GovCIO
Lincoln, NE
GovCIO is seeking a highly experienced Master Network & Security Engineer to lead the design, operation, troubleshooting, and continuous improvement of enterprise network-security…
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C
Senior .NET Full Stack Engineer with C#
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- $86,000 to $99,000 USD / year
As a Senior .NET Full Stack Engineer with C#, you will make an impact by designing and developing scalable enterprise applications that support healthcare payer operations, including…
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Senior Java Full Stack Engineer – Spring Boot & AWS
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- $86,000 to $99,000 USD / year
As a Senior Java Full Stack Engineer – Spring Boot & AWS , you will make an impact by designing and delivering scalable, secure, cloud-based applications using Java, Spring Boot, React, and…
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Senior Full Stack Engineer – .NET & C#
Cognizant
Lincoln, NE
- $86,000 to $99,000 USD / year
As a Senior Full Stack Engineer – .NET & C#, you will make an impact by designing and developing scalable enterprise applications that support healthcare payer operations, including…
Added 6 mins ago
Data Center Electrical Engineer, Senior Consultant
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Houston, TX · Dallas, TX
WSP is looking for a Data Center Electrical Engineer, Senior Consultant for our Atlanta, GA office. As an Electrical Engineer with us, you will design complex power and other building…
Added 7 mins ago
Engineer senior, SRE - ST
Starbucks Coffee Company
Nashville
As the senior Site Reliability Engineer you will ensure the reliability, availability, and performance of critical Starbucks technology platforms. You will design and put in place…
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Senior / Staff Software Engineer, Robotics Platform
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Milpitas, CA
We are hiring Senior / Staff Software Engineers to build the foundations that make our robots useful, reliable and maintainable. The work spans software interfaces, on-robot systems, fleet…
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Senior / Staff Robotics Controls Engineer
RoboForce
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We are looking for a Senior / Staff Robotics Controls Engineer to turn operator and planner intent into predictable physical behavior. You will develop and deploy control software for…
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Senior Software Engineer (Full-Stack)
BioTalent
San Diego, CA
- $180,000 USD / year
Senior Software Engineer (Full Stack: Mobile & Cloud)
Added 13 mins ago
Software Engineer - Risk Systems
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Senior Solutions Architect - AI and Emerging Technologies
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We are seeking a Senior Solutions Architect - AI and Emerging Technologies to lead the design, governance, and adoption of AI-powered business solutions across the enterprise. This role…
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Senior PSM Engineer
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As a Sr. Process Safety Engineer, you will play a pivotal role in our mission to ensure strong safety protocols and robust risk mitigation strategies. This role offers an outstanding…
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Senior Software Engineer
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Job Description BAE Systems is seeking a Senior Software Engineer to join the Digital Architecture Team (DAT) in Nashua, NH. DAT provides shared digital platforms and forward-deployed…
Added 17 mins ago
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Senior Manager - Quality Engineering
Oracle
Augusta, ME
- $126,200 to $264,100 USD / year
The Senior Manager, Quality Engineering is responsible for leading the Quality Engineering organization and ensuring the effective execution of quality strategies across manufacturing…
Added 17 mins ago
Network Security Engineer Master
GovCIO
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GovCIO is seeking a highly experienced Master Network & Security Engineer to lead the design, operation, troubleshooting, and continuous improvement of enterprise network-security…
Added 17 mins ago
Senior Product Manager
Acxiom
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The Senior Product Manager for Clean Rooms and Data Delivery Platforms is responsible for defining and executing Acxiom’s strategy for client and partner based clean-room implementations…

Apple

AI Software Engineer - Calendar Intelligence

Cupertino, CA, United States

The base pay range for this role is between $150,400 and $277,600, and your base pay will depend on your skills, qualifications, experience, and location.

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Job details

Pay: The base pay range for this role is between $150,400 and $277,600, and your base pay will depend on your skills, qualifications, experience, and location.
Experience: Bachelor's degree or foreign equivalent in Computer Science, EE, Applied Mathematics, or related field with 2+ years experience in developing ML / AI driven software.
Posting language: English
Posted: Nov 9, 2026

Original job description

Summary Apple has changed how people live, connect, and work, and the Calendar team wants to rethink what a calendar can do for the people using it. A calendar knows when someone is busy. It knows very little about which of those commitments matter, which ones could move, or when would be a good time for something new. We're looking for an engineer to help answer those questions, on device and privately, for billions of people. The right person has strong machine learning foundations and is just as comfortable writing the software that ships a model as building the model itself. You'll help take ideas from a single sentence to a shipped feature, and you'll bring the evaluation that tells us whether it works.

Description In this role you'll drive the modeling and evaluation behind intelligence features in Calendar, from the first framing through launch, as part of a very collaborative team. A request will often start as one line, and you'll work with the team to turn it into a problem we can solve: what signal exists, what a good answer looks like, which approach fits, and how we'll know it's right. You'll design the evaluation before you build the model. That means the metrics, the eval sets, the baselines a model has to beat, and human review for the places where a metric can't tell you enough.

You won't always have good data, so part of the job is finding it and getting something useful out of it when there isn't much. You'll need to get real statistical strength out of priors, shared structure, and self-supervision. You'll also work with a range of large language models, on device and on server, deciding where a model call earns its cost, where a smaller model trained on a larger model's judgments does better, and where a well-tuned heuristic beats both.

You'll join a small team of senior systems engineers who ship this work across Apple's platforms, several of them with deep backgrounds in ML data engineering. There's no hard line between roles, so you'll write production code alongside them in whatever part of the stack the problem needs. Calendar also builds on signals and models from other ML teams across Apple, and a lot of this role is working with them: building on what they have, agreeing on shared interfaces, and recognizing when we need our own. You'll work closely with design and product as well. We need someone who writes clearly, can explain a model's tradeoffs to engineers who aren't ML specialists, and is comfortable driving a problem forward before the path is defined.

Minimum Qualifications Bachelor's degree or foreign equivalent in Computer Science, EE, Applied Mathematics, or related field with 2+ years experience in developing ML / AI driven software. Proficiency in one or more of the following programming languages: Python, Swift, Objective-C, or C++ Experience developing software prototypes and features driven by Large Language Models and designing tool and function-calling interfaces, constructing context, and validating model output Fluency with agentic coding tools such as Claude Code, with good judgment about where to apply them and how to verify what they produce. Experience driving an ambiguous problem with cross-functional partners, including other ML teams, from a loose idea through launch, and getting alignment on shared interfaces along the way. Exceptional problem-solving skills, and the ability to drive alignment across teams on shared API surfaces

Preferred Qualifications Experience designing and developing systems that are efficient in resource constrained environments - latency, memory, and power budgets on device Solid foundation in machine learning, probability, and statistics, with hands-on experience training and evaluating models in a framework such as PyTorch or JAX A track record of designing the evaluation for what you ship: metrics, held-out sets, baselines, and noticing when a metric has stopped measuring what you care about Proven ability to excel in a fast-paced development team

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 $150,400 and $277,600, 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.

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More about this job

Skills

ML
Data engineering
Computer science
Programming languages
Python
Swift
Objective C
C++
Problem solving
Machine learning
Statistics
PyTorch

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