Assistant Frontend Developer Jobs in Chicago, IL

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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.

This position does not provide visa sponsorship. Candidates must be authorized to work in the United States without sponsorship.

Estimated compensation for this position:

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:

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 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

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'repursuing.

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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.

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Accepting applications on an ongoing basis until candidate identified.