Senior Software EngineerJones Lang LaSalle Incorporated • Chicago, IL, United States

Senior Software Engineer

Jones Lang LaSalle Incorporated • Chicago, IL, United States

[job_card.30_days_ago]

[job_preview.job_type]

[job_card.full_time]

[job_card.job_description]

JLL empowers you to shape a brighter way

.Our people at JLL and JLL Technologies 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.About the Role : JLL is seeking a Full Stack Software Engineer to join our GenAI and Central Platform teams. In this role, you will design, develop, and maintain applications and services powering next-generation AI assistants and RAG (Retrieval-Augmented Generation) systems. You will own meaningful software projects with a focus on scalable architecture, modern API development, performance optimization, and high development standards, serving both internal teams and external stakeholders. Hybrid work arrangements and substantial project ownership offer an environment where you can make a significant impact.Key Responsibilities :

Design, implement, and support RESTful APIs, backend services, and microservices architectures using Python and Node.js.

Develop full stack solutions incorporating frontend (JavaScript frameworks) and backend components for scalable enterprise applications.

Build, optimize, and maintain search and retrieval systems, including integration with vector databases and information retrieval technologies.

Collaborate with data engineers to integrate AI / ML models and RAG systems into production.

Implement prompt engineering and optimization strategies to improve intelligent assistant interactions and AI-powered applications.

Lead maintenance, bug fixing, troubleshooting, and enhancements of existing codebases, ensuring reliability and performance.

Apply robust error handling, automated logging, and monitoring best practices for mission-critical cloud software.

Contribute to CI / CD pipeline automation, testing strategy, and quality assurance using Git, GitHub Actions, and Azure DevOps.

Support architectural discussions, code reviews, and technical decision-making processes for engineering excellence.

Translate business and functional requirements into technical deliverables in collaboration with cross-functional teams.

Stay current with emerging technologies and best practices in AI / ML, full stack development, cloud infrastructure, and search optimization.

Author and contribute to technical documentation, runbooks, and knowledge sharing initiatives.Required Technical Qualifications :

Bachelor’s degree in Computer Science, Software Engineering, Information Technology, or related discipline.

At least 7 years of relevant experience in full stack software engineering; designing and delivering production applications.

Hands-on experience with Python and Node.js in enterprise environments.

Competency in modern frontend frameworks (React, Angular, or equivalent).

Solid experience building APIs, microservices, and distributed systems in Azure or other major cloud platforms (AWS, GCP).

Experience with vector databases, information retrieval systems, and optimizing search performance (highly preferred).

Familiarity with containerization (Docker, Kubernetes) and infrastructure-as-code in cloud settings.

Proficient in CI / CD, version control (GitHub / Git), and automated testing frameworks.

Experience with database technologies including SQL Server, CosmosDB, and both relational and NoSQL data modeling.

Exposure to prompt engineering, LLM integration, or AI tools is an advantage; RAG project experience strongly preferred.Required Soft Skills :

Able to work independently and as part of cross-functional teams, delivering comprehensive applications and solutions.

Demonstrates clear, proactive communication and cultivates strong business relationships across teams and departments.

Interprets, monitors, and analyzes data to resolve inconsistencies in non-routine challenges.

Contributes to planning, implementation, and continuous improvement for software projects.

Exercises sound judgment and provides input in technical decision-making processes.

Balances multiple assignments and effectively adapts to shifting priorities in fast-paced environments.

May provide guidance, training, and technical leadership to junior engineers.

Estimated compensation for this position :

120,000.00 – 150,000.00 USD per year

This range is an estimate and actual compensation may differ. Final compensation packages are determined by various considerations including but not limited to candidate qualifications, location, market conditions, and internal considerations.

Location :

On-site –Boston, MA, Chicago, IL, Dallas, TX, San Francisco, CAIf 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 may 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

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 .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 .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 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 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

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