Engineering Leader, Planner Modeling Team - Siri **Cupertino, California, United States** **Software and Services** **Summary** Posted: **Jul 26, 2025** Weekly Hours: **40** Role Number: **200614154** Join Siri as the Engineering Leader of the Planner Modeling Team and play an important role in redefining the Siri experience. You will collaborate with senior leaders and cross-functional partners to develop the core model that drives the agent’s behavior, determining when and how to call tools on the users behalf. In this role you will work at the forefront of what is currently possible with LLMs, working with simulation, evaluation, context engineering, and data generation. This role requires collaboration across teams, including teams building our agent’s “toolbox”, search, and close partners with Response Generation and Internationalization. Work closely with our Architecture Committee and the Evaluation Infrastructure team to align on strategic directives and leverage simulator-driven evaluations to measure and improve model quality. Engage in benchmarking state-of-the-art internal and external models and perform failure analyses to understand common failure patterns and gain exposure to cutting edge technologies and techniques. **Description** Key Day-to-Day Responsibilities: Technical: -Enable the team to improve model performance by iterating on prompts and evaluation tools -Conduct benchmarking of internal and external models -Perform failure analyses to identify common failure patterns and advocate for system-wide changes Operational: -Lead and prioritize team efforts to balance product and engineering goals -Facilitate meetings and ensure clear communication across the team -Onboard new engineers and adjust resources as projects evolve -Communicate progress and strategic plans to leadership and cross-functional partners in weekly status reports and weekly leadership meetings **Minimum Qualifications** + Technical: + Expertise in language models, agentic systems, and evaluation methodologies + Experience with tools and workflow development for model improvement + Passion for experimenting with and optimizing prompts + Operational: + Experience managing technical teams through ambiguity and change + Strong cross-functional collaboration skills that lead to the best outcomes for the customer + Proven ability to translate leadership goals into actionable tasks **Preferred Qualifications** + Bachelors in Computer Science or equivalent work experience **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 $228,100 and $393,800, 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. (https://www.apple.com/careers/us/benefits.html) Note: Apple benefit, compensation and employee stock programs are subject to eligibility requirements and other terms of the applicable plan or program. 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 (https://www.eeoc.gov/sites/default/files/2023-06/22-088\_EEOC\_KnowYourRights6.12ScreenRdr.pdf) . 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 (https://www.eeoc.gov/sites/default/files/2023-06/22-088\_EEOC\_KnowYourRights6.12ScreenRdr.pdf) . Apple will not discriminate or retaliate against applicants who inquire about, disclose, or discuss their compensation. Apple participates in the E-Verify program in certain locations as required by law.Learn more about the E-Verify program (https://www.apple.com/jobs/pdf/EverifyPosterEnglish.pdf) . Apple is committed to working with and providing reasonable accommodation to applicants with physical and mental disabilities. Reasonable Accommodation and Drug Free Workplace policy Learn more . Apple is a drug-free workplace. Reasonable Accommodation and Drug Free Workplace policy Learn more . Apple will consider for employment all qualified applicants with criminal histories in a manner consistent with applicable law. If you’re applying for a position in San Francisco, review the San Francisco Fair Chance Ordinance guidelines applicable in your area. It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.