Principal Machine Learning Engineer
$216.1k - $378.2kServiceNow
Company DescriptionIt all started when engineer Fred Luddy wrote code that automated a tedious task for his coworker, Phyllis. She cried tears of joy. That moment inspired Fred to build a company that could do that for everyone—freeing people from busywork so they could focus on meaningful work. Today, ServiceNow is the AI control tower for business reinvention. Our ServiceNow AI platform brings together any AI, any data, and any workflow— helping 85% of the Fortune 500 work smarter, faster, and better. We're building an AI-native culture where technology and talent are unstoppable together. And we're just getting started.Join us to put AI to work for people.Job DescriptionOverview Enterprise AI is ServiceNow's horizontal capability team, building the operating model, technical foundation, and Customer Zero motion for AI governance at enterprise scale, including AI Control Tower, the AI agent orchestrator, and the AI agent fabric on the ServiceNow AI platform. As Principal Engineer, Agentic AI Systems, you will serve as the senior-most technical multiplier for the Enterprise AI organization, setting architecture and technical direction for one of ServiceNow's biggest engineering opportunities: making an enterprise-scale workforce of AI agents governable, secure, observable, and worth trusting.What You'll DoDefine the multi-year technical architecture for the AI Control Tower portfolio, agent governance, orchestration, lifecycle management, interoperability, observability, evaluation, and AI security, as one coherent platform.Establish an AI-forward developer experience that embeds agents into planning, coding, testing, review, deployment, and operations, with the standards and guardrails to make it safe and measurable.Define operational excellence for autonomous and semi-autonomous agents, including reliability, incident response, rollback, kill-switch, and auditability standards.Act as the technical multiplier across AI engineering, data and ML, infrastructure, product, DevOps, security, and GRC, brokering cross-domain choices and resolving design conflicts on technical merit.Turn ServiceNow's own Customer Zero experience into structured product feedback for AI Control Tower and related platform capabilities.Prototype and incubate new patterns in multi-agent orchestration, agent evaluation, and AI governance automation, and publish reference architectures that accelerate reuse.Mentor principal and senior engineers, raise hiring standards, and build the AI fluency that makes this team a model for AI-ready engineering.QualificationsTo be successful in this role you have:15+ years of software engineering experience, including 5+ years operating at a principal, senior staff, or director-equivalent scope, setting technical strategy across multi-team organizations without relying on direct reporting authority.Deep, current, hands-on expertise in agentic AI and LLM-based systems, multi-agent orchestration, RAG, evaluation frameworks, LLMOps/MLOps, AI observability, and AI governance and security.Experience architecting enterprise-scale cloud platforms, distributed systems, developer platforms, data platforms, or DevOps/CI-CD automation.A demonstrated track record of transforming how engineering organizations build, test, and ship software, ideally with AI-assisted or agentic coding tools.Strong judgment in ambiguous technical domains where architecture, product, security, operations, and business value intersect.Builder credibility: you still write code, prototype fast, and lead by demonstration.Executive communication skills, with the ability to frame technical strategy and trade-offs for VP, C-level, customer, pundits, and partner audiences.Preferred QualificationsExperience with ServiceNow or a comparable enterprise workflow platform (ITSM, CMDB, GRC).Experience with MCP, A2A, tool-calling architectures, or LLM/AI gateways.Visible technical guidance through publications, talks, patents, or open-source contributions.For positions in this location, we offer a base pay of $216,100 - $378,200, plus equity (when applicable), variable/incentive compensation and benefits. Sales positions generally offer a competitive On Target Earnings (OTE) incentive compensation structure. Please note that the base pay shown is a guideline, and individual total compensation will vary based on factors such as qualifications, skill level, competencies, and work location. We also offer health plans, including flexible spending accounts, a 401(k) Plan with company match, ESPP, matching donations, a flexible time away plan and family leave programs. Compensation is based on the geographic location in which the role is located and is subject to change based on work location.Additional InformationWork PersonasWe approach our distributed world of work with flexibility and trust. Work personas (flexible, remote, or required in office) are categories that are assigned to ServiceNow employees depending on the nature of their work and their assigned work location. Learn more here. To determine eligibility for a work persona, ServiceNow may confirm the distance between your primary residence and the closest ServiceNow office using a third-party service.Equal Opportunity EmployerServiceNow is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, national origin, age, disability, gender identity, veteran status, or any other category protected by law. In addition, all qualified applicants with arrest or conviction records will be considered for employment in accordance with legal requirements. AccommodationsWe strive to create an accessible and inclusive experience for all candidates. If you require a reasonable accommodation to complete any part of the application process, or are unable to use this online application and need an alternative method to apply, please contact View email address on click.appcast.io for assistance. Export Control RegulationsFor positions requiring access to controlled technology subject to export control regulations, including the U.S. Export Administration Regulations (EAR), ServiceNow may be required to obtain export control approval from government authorities for certain individuals. All employment is contingent upon ServiceNow obtaining any export license or other approval that may be required by relevant export control authorities. From Fortune. 2026 Fortune Media IP Limited. All rights reserved. Used under license.SummaryType: Full-timeFunction: EngineeringExperience level: Not ApplicableIndustry: Information Technology And Services
$264k - $330k
...that go beyond simple assistance to power real automation and decision-making.Who We Are Looking ForWe're seeking a Principal Machine Learning Engineer to help define and lead the next generation of AI systems within Realm-X, and to drive AppFolio's long-term autonomous...PrincipalFull timeFlexible hours$110k - $180k
The Marlin Alliance, Inc. is seeking a Senior Machine Learning Engineer to design, develop, and implement advanced machine learning models and algorithms in support of naval applications. This role requires deep technical expertise in modern machine learning methods, distributed...SuggestedContract work$105.78k - $189.35k
...are today. We strive to make both our internal and external communities better everyday! Learn more about why you want to be here!PURPOSE OF THE JOBThe Machine Learning Engineer (MLE) selected for this role at ICW Group will build and deploy high-performing machine learning...SuggestedFull timeWork at officeLocal areaRelocation3 days per week- ...Job Description Job Description Lead / Principal Process ML Engineer Job Title: Lead / Principal Process ML Engineer Job Type: Full... ...(HQ + overseas R&D) Published work in scientific machine learning, computational physics, or neural operators Experience...PrincipalFull timeOverseas
$180k - $250k
...Role: Senior Machine Learning Engineer Location: San Diego, CA (in-office) Salary Range: $180,000 - $250,000 / yr + stock options, 401k matching, and other benefits Role Overview: Seasats' vehicles operate in highly remote and often communications-limited...SuggestedPermanent employmentFull timeWork at officeLocal areaRemote workFlexible hours$165k - $195k
The Marlin Alliance, Inc. is seekinga talented and experienced Senior Machine Learning Engineer to join our team. The successful candidate will be expected to design, develop, and implement advanced machine learning models and algorithms in support of naval applications...Contract workWork at office$200k - $250k
...that go beyond simple assistance to power real automation and decision-making.Who We Are Looking ForWe're hiring a Staff Machine Learning Engineer to help move forward the ML platform that every AI initiative at AppFolio depends on — training, fine-tuning, inference, RAG...Full timeFlexible hours- ...Description Responsibilities Own small to medium components of machine learning systems from technical designthrough implementation and... ...to plan Build and maintain data pipelines and feature engineering workflows to support machinelearning and AI solutions...Full timeLocal areaRemote work
$140k - $195k
Machine Learning Engineer III The Marlin Alliance, Inc. | San Diego, CA | Hybrid | Clearance Required About The Marlin Alliance Incorporated in 2002, The Marlin Alliance is a digital transformation company dedicated to ensuring our clients compete and win in tomorrow...Contract workWork at office- ...entry-level software programmers, Java full stack developers, Python/Java developers, data analysts/data scientists, data engineers, machine learning engineers for full time positions with clients. Who should apply? Recent computer science/engineering/mathematics/...Full time
$107.66k - $161.7k
...topics and providing a unique platform to learn and connect with others. Poe : a... ...About the Team and Role: Our small engineering team works on challenging problems every... ...product and our company. At Poe, we use Machine Learning in various parts of the product...Remote jobFull timeWork experience placementInternship$117k - $201.25k
...profoundly impact health for humanity. Learn more at jnj.comAs guided by Our... ...Innovative Medicine is recruiting for Principal Data Scientist - R&D DSDH -... ...Data Scientist to leverage advanced machine learning, robust data engineering techniques, and domain expertise to...PrincipalFull timeLocal areaImmediate startWorldwide- ...while staying connected and building community through regular in-person events. Learn more about our flexible approach to where we work. About the Role: As a Machine Learning Engineer, you will have the opportunity to collaborate closely with senior engineers and...Permanent employmentFull timeWork at officeRemote workWork from homeFlexible hours
$123.5k - $188.5k
...Role AeroVironment is seeking a Senior AI/ML Engineer to support the development and deployment of machine learning algorithms that detect and classify drone... ...company website at to learn more about us. Principals only need apply. NO agencies please. About AV...Permanent employmentFull timeContract workWork experience placement$117k - $201.25k
...profoundly impact health for humanity. Learn more at jnj.com.As guided by Our Credo,... ...Innovative Medicine is currently seeking a Principal Data Scientist - Immunology(2 openings)... ...Principal Data Scientist (Knowledge Graph Engineer) - Immunology, who will play a pivotal...PrincipalFull timeTemporary workLocal areaRemote work$202k - $215k
...15,000 Position Overview We are building a product where learned models and compute-heavy inference components have to run inside... ...: production readiness, performance, reliability, and the engineering boundary between exploratory model work and shipped execution....Full timeContract workLocal area$114k - $171k
...employees are not only part of history, they're making history.Northrop Grumman Aeronautics Systems Sector has an opening for a Principal Data Engineer to join our Digital Strategy & Analytics team. This position is located in Rancho Bernardo, California. Are you motivated...PrincipalFull timeRelocation packageShift work- ...Senior Director, Principal Gifts About the Company Philanthropic organization supporting Indigenous culture & individuals Industry Non-Profit Organization Management Type Non Profit Founded 2017 Employees 11-50 Categories ~ Non-Profit & Philanthropy...Principal
- DescriptionSAIC is looking for a Sr Principal Systems Engineer - IO in San Diego, CA. SAIC is looking for a cleared Systems Engineering candidate to provide technical assistance and recommendations regarding the planning, implementation, and management of Battlespace Awareness...PrincipalFor contractorsWorldwide
- ...Merck & Co. in San Diego, CA invites a Technical Development Principal Scientist for a 5+ month contract (W2). The role focuses on advancing cell therapy programs, including T cell and stem cell products, with hands-on development and technical leadership. You will apply...PrincipalContract work
$188k - $210k
...lives of patients, but to also learn and grow within a purpose... ...seeking a talented and experienced Principal Data Scientist with proven... ...: - PhD in Data Science, Machine Learning, Applied Math or equivalent... ...powerful evidence-generation engine, which ultimately drives...PrincipalRemote work$130k
...Principal Traffic Engineer Location: San Diego, CA Employment Type: Full-Time Position Overview We are seeking an experienced Principal Traffic Engineer to join our Traffic Division in San Diego, CA. This role is designed for a highly skilled transportation...PrincipalFull time$100k - $110k
A financial firm in San Diego is seeking a Supervisory Principal to oversee advisors and manage compliance processes. The ideal candidate must hold FINRA Series 7 and 24 certifications, along with 2+ years of supervisory experience. Responsibilities include transaction...PrincipalFull time- ...including e-commerce, advertising, and fulfillment. We use machine learning and Internet-scale data to elevate customer experience,... ...Discovery ML team at Instacart works alongside world-class engineers, data scientists, and product managers to shape the future of...Remote jobPermanent employmentWork experience placementInternshipWork at officeWork from homeFlexible hours
$142.2k - $213.4k
...employees are not only part of history, they're making history.Northrop Grumman Aeronautics Systems has an opening for a Sr Principal Systems Engineer Requirements and Verification (R&V) Lead to join our team of qualified, diverse individuals within our Systems...PrincipalFull timeRelocation packageShift work$193k - $220k
...CD). Explore more on Cubic.com.Job Details:Job DescriptionJob Summary:Works independently as a technical project leader, applies engineering principles, procedures and techniques to perform systems engineering assignments related to the development of electronic and software...PrincipalFull timeFor subcontractor$166.38k - $189.53k
Treeline Biosciences, a clinical-stage biotechnology company advancing precision medicines, is seeking an experienced small molecule process chemist to drive the development, scale-up, and commercial readiness of our small molecule, clinical-stage portfolio. This role ...Principal$142.2k - $213.4k
...employees are not only part of history, they're making history.Northrop Grumman Aeronautics Systems has an opening for a Sr. Principal Systems Engineer - LTC Design / Architecture / Integration to join our team of qualified, diverse individuals within our Systems...PrincipalFull timeRelocation packageShift work$143.29k - $266.11k
...metabolomics research and/or cell culture media development.Advanced degree and extensive experience: PhD in biological sciences, chemical engineering, or related discipline with 5+ years of relevant research and development experience in metabolomics and/or cell culture media...PrincipalFull timeLocal areaRelocation package$142.2k - $213.4k
...employees are not only part of history, they're making history.Northrop Grumman Aeronautics Systems has an opening for a Senior Principal Systems Engineer to join our team of qualified, diverse individuals within our Systems Engineering organization. This role is located in...PrincipalFull timeRelocation packageShift work
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