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This position has closed. Jones Lang LaSalle removed this listing from their careers page on Oct 6, 2026. The interview prep below is still useful, and there are similar open roles at the bottom of this page.

Principal Architect, AI Solutions

Jones Lang LaSalle · Chicago, IL · Full time

Posted Sep 30, 2026 · We last checked this listing on Oct 5, 2026

Likely interview questions for this role

Written from this job description, not a generic list. Each one notes what the interviewer is really checking.

About your past

Tell me about a time you influenced engineering teams that did not report to you to adopt a new standard.

What they are checking: Whether they can lead through credibility and persuasion, which a senior individual contributor role depends on.

Tell me about an architecture decision you made that turned out to be wrong.

What they are checking: Whether they own mistakes and changed course quickly, which matters when the field moves this fast.

What would you do

A business leader wants to ship an AI feature fast, but you see real risk with data exposure. What do you do?

What they are checking: Whether they can find a responsible path forward without simply blocking the business.

How should engineering teams use AI coding tools responsibly in their own software delivery?

What they are checking: Whether they have a practical view on AI-powered delivery, including review, testing and security.

How do you keep enterprise architecture flexible when AI models and tools change every few months?

What they are checking: Whether they design for change with clean interfaces rather than locking into one vendor or model.

About the work

Walk me through the architecture of an AI system you led that is running in production.

What they are checking: Whether they have shipped real AI systems at scale and understand every layer, not just prototypes.

How do you decide between retrieval-augmented generation, fine-tuning and an agent-based design for a use case?

What they are checking: Whether they choose patterns based on the problem, data and cost, rather than following trends.

What enterprise standards would you set for teams building AI features across business units?

What they are checking: Whether they think about security, evaluation, data privacy and reuse, so teams do not reinvent the basics.

How do you evaluate whether an AI feature is good enough to ship?

What they are checking: Whether they build real evaluation sets and quality gates, rather than relying on demos that look good.

How do you manage the cost of running AI models at enterprise scale?

What they are checking: Whether they think about model choice, caching and usage patterns to keep costs under control.

Practice this interview out loud.

Offer builds a real interview for this exact role at Jones Lang LaSalle from your resume and this job description, asks the questions one at a time, and tells you what landed. The first one is free.

Practice this out loud

The full job description

As published by Jones Lang LaSalle.

JLL empowers you to shape a brighter way . Our people at JLL are shaping the future of real estate for a better world by combining world class services, advisory and technology for our clients. We are committed to hiring the best, most talented people and empowering them to thrive, grow meaningful careers and to find a place where they belong. Whether you’ve got deep experience in commercial real estate, skilled trades or technology, or you’re looking to apply your relevant experience to a new industry, join our team as we help shape a brighter way forward. Role Summary We are seeking a Principal Architect to help lead the next generation of AI-enabled product, platform, and engineering capabilities across our organization. This is a senior individual contributor role operating at the highest levels of technical leadership. The ideal candidate will combine deep AI architecture expertise with strong enterprise architecture judgment, practical delivery experience, and the ability to influence teams across business units. This role will partner closely with business and technology leaders to shape product and platform architectures, define and uphold enterprise standards, and help our engineering organization adopt modern AI and AI-powered software delivery practices responsibly and effectively. Key Responsibilities • Lead architecture for strategic AI initiatives across products, platforms, and shared enterprise capabilities • Partner with business units, product leaders, and engineering teams to shape scalable, secure, and practical AI solution architectures • Define and evolve architecture standards, reference patterns, and guardrails for AI solutions and AI-enabled software development • Evaluate emerging AI technologies, platforms, and patterns, and guide the organization on where and how to adopt them • Provide architectural leadership for capabilities, agentic workflows, AI orchestration, evaluations, AI observability, and AI governance • Ensure AI solutions align with enterprise requirements for security, privacy, compliance, resiliency, observability, and maintainability • Help engineering teams leverage AI-powered PDLC capabilities across coding, testing, documentation, analysis, and delivery workflows • Guide architecture decisions across application, data, integration, platform, and operational concerns to avoid fragmented or duplicative solutions • Mentor technical leads and senior engineers and contribute to raising the technical bar across the organization • Participate in architecture reviews, technical strategy discussions, and investment decisions related to AI and platform modernization Required Qualifications • Bachelor’s or masters degree in Computer Science, Engineering, or related field, or equivalent practical experience • 12+ years of experience in software engineering, architecture, or technology leadership roles • Significant experience designing and guiding enterprise-grade AI solutions in production environments • Deep knowledge of modern AI architecture patterns, including LLM-based applications, retrieval systems, agentic workflows, prompt and tool orchestration, and evaluation approaches • Strong architecture background across distributed systems, APIs, integration, data platforms, security, and cloud-native solutions • Experience establishing architecture standards, reference architectures, and technical guardrails across multiple teams • Proven ability to influence senior technical and business stakeholders without direct authority • Strong written and verbal communication skills, with the ability to tailor communication from engineering teams to executive leadership • Demonstrated ability to balance innovation, speed, risk management, and long-term maintainability Preferred Qualifications • Experience working in a large enterprise, platform-oriented environment • Experience with AI governance, responsible AI, model risk, privacy, and security controls • Familiarity with cloud AI platforms and services, vector search, AI gateways, observability, and production AI operations • Experience helping engineering organizations adopt AI-powered development tools and practices • Experience defining reusable architecture patterns for shared enterprise AI capabilities • Experience mentoring architects or leading architecture communities of practice • Master’s degree in Computer Science, Engineering, Data Science, or related field What Success Looks Like • Business units have a strong architecture partner for AI-driven product and platform decisions • The organization has clearer standards and reusable patterns for AI solutions • Teams adopt AI technologies faster and more safely • AI initiatives are better aligned to business value, enterprise platforms, and engineering standards • Engineering teams are better equipped to use AI-powered PDLC capabilities effectively and responsibly Leadership Expectations This role is expected to operate as a senior technical leader across organizational boundaries. The Principal Architect will influence strategy, guide major technical decisions, coach others, and help establish the technical direction for enterprise AI adoption and architecture excellence. This position does not provide visa sponsorship. Candidates must be authorized to work in the United States without sponsorship. Expected compensation for this position: 215,000.00 – 300,000.00 USD per year Final compensation packages are determined by various considerations including but not limited to candidate qualifications, location, market conditions, and internal considerations. Location: Remote –Chicago, IL If this job description resonates with you, we encourage you to apply, even if you don’t meet all the requirements. We’re interested in getting to know you and what you bring to the table! Personalized benefits that support personal well-being and growth: JLL recognizes the impact that the workplace can have on your wellness, so we offer a supportive culture and comprehensive benefits package that prioritizes mental, physical and emotional health. Some of these benefits include: • 401(k) plan with matching company contributions • Comprehensive Medical, Dental & Vision Care • Paid parental leave at 100% of salary • Paid Time Off and Company Holidays • Early access to earned wages through Daily Pay At JLL, we harness the power of artificial intelligence (AI) to efficiently accelerate meaningful connections between candidates and opportunities. Using AI capabilities, we analyze your application for relevant skills, experiences, and qualifications to generate valuable insights about how your unique profile aligns with the specific requirements of the role you're pursuing. JLL Privacy Notice Jones Lang LaSalle (JLL), together with its subsidiaries and affiliates, is a leading global provider of real estate and investment management services. We take our responsibility to protect the personal information provided to us seriously. Generally the personal information we collect from you are for the purposes of processing in connection with JLL’s recruitment process. We endeavour to keep your personal information secure with appropriate level of security and keep for as long as we need it for legitimate business or legal reasons. We will then delete it safely and securely. For more information about how JLL processes your personal data, please view our Candidate Privacy Statement . For additional details please see our career site pages for each country. For candidates in the United States, please see a full copy of our Equal Employment Opportunity policy here . Jones Lang LaSalle (“JLL”) is an Equal Opportunity Employer and is committed to working with and providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation because of a disability for any part of the employment process – including the online application and/or overall selection process – you may email us at HRSCLeaves@jll.com . This email is only to request an accommodation. Please direct any other general recruiting inquiries to our Contact Us page > I want to work for JLL. Pursuant to the Arizona Civil Rights Act, criminal convictions are not an absolute bar to employment. Pursuant to Illinois Law, applicants are not obligated to disclose sealed or expunged records of conviction or arrest. Pursuant to Columbia, SC ordinance, this position is subject to a background check for any convictions directly related to its duties and responsibilities. Only job-related convictions will be considered and will not automatically disqualify the candidate. California Residents only If you are a California resident as defined in the California Consumer Privacy Act (CCPA) please view our Supplemental Privacy Statement which describes your rights and disclosures about your personal information. If you are viewing this on a mobile device you may want to view the CCPA version on a larger device. Pursuant to the Los Angeles Fair Chance Initiative for Hiring Ordinance, JLL will consider for employment all qualified Applicants, including those with Criminal Histories, in a manner consistent with the requirements of applicable state and local laws, including the City of Los Angeles’ Fair Chance Initiative for Hiring Ordinance. Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records. Accepting applications on an ongoing basis until candidate identified.