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About the Role

We are seeking an expert Staff Software Developer to architect end-to-end platform solutions, lead the adoption of agentic AI and LLM-powered capabilities across the platform, and bring deep experience building microservices and event-driven architectures at scale. This is a senior individual-contributor role with 10+ years of experience across multiple technology domains, a track record of shaping technical strategy rather than just executing against it, and a genuine drive to simplify the developer experience for the engineers around you.

Responsibilities

Architect and build end-to-end platform solutions, backend services, RESTful APIs, and front-end interfaces where needed, applying OOP, DDD, and event-driven patterns so they stay maintainable as they scale.
Design, build, and operate microservices and event-driven architectures that scale reliably, and evolve them as usage and team count grow.
Own the platform's core APIs built on RESTful principles — and shared frameworks, simplifying how other engineering teams build on them and backing every service with documentation clear enough that teams rarely need to ask.
Architect and modernize services on Azure and/or AWS, partnering with cloud/DevOps engineering on reliability and cost.
Lead the integration of agentic AI, LLM, and MCP-based capabilities into platform services, stay fluent in fast-moving AI coding tools (Claude Code, GitHub Copilot, Cursor, and similar), and set team guidelines for where AI-assisted development helps versus where it adds risk.
Mentor senior and lead engineers including on responsible AI tool use influence technical direction across teams, and act as the go-to expert for platform architecture decisions.

Requirements

10+ years of professional software engineering experience, including architecting complex, end-to-end platform solutions across multiple technology domains
Strong command of object-oriented programming and design patterns, including domain-driven design (DDD), event-driven architecture, and microservices
Proficiency in at least one backend language - Java, C#, or Python
Proven full-stack experience end-to-end, designing and building RESTful APIs from the data layer through to the services that consume them
Hands-on experience building AI-powered features (LLMs, AI agents) and using AI coding tools such as Claude Code, GitHub Copilot, or Cursor responsibly to accelerate your own development work
Deep, hands-on experience with cloud-native architecture on Azure and/or AWS
Track record of simplifying how other engineers work and writing clear, accessible documentation for what you build
Strong communication skills, with the ability to explain technical trade-offs to both engineers and business stakeholders
Front-end experience with TypeScript/JavaScript and a modern framework (React or Angular) for building user-facing web applications
Experience with MCP-based tooling or building agentic AI systems that other engineering teams consume
Hands-on experience with agent harness engineering and spec-driven development, and a habit of tracking emerging AI coding techniques and sharing what works with the team
Familiarity with additional API paradigms beyond REST, such as GraphQL or gRPC
Cloud certifications (Azure Solutions Architect, AWS Solutions Architect, or equivalent)
Candidates must be authorized to work in the United States without sponsorship.

Skills

Object-Oriented Programming (OOP)
Domain-Driven Design (DDD)
Event-Driven Architecture
Microservices
RESTful APIs
Azure
AWS
Agentic AI
LLM
Claude Code
GitHub Copilot
Cursor
TypeScript
JavaScript
React
Angular
GraphQL
gRPC

Location

Remote - Chicago, IL

Work Type

Remote

Experience Level

10+ years of professional software engineering experience
Senior individual-contributor role

Salary/Compensations

187,100.00 – 229,200.00 USD per year

Benefits

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

About the Company

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.
JLL is a leading professional services firm that specializes in real estate and investment management. Our vision is to reimagine the world of real estate, creating rewarding opportunities and amazing spaces where people can achieve their ambitions. In doing so, we will build a better tomorrow for our clients, our people, and our communities.
At JLL Technologies, our mission is to bring technological innovation to commercial real estate. We deliver unparalleled digital advisory, implementation, and services solutions to organizations globally. Our goal is to leverage technology to increase the value and liquidity of the world's buildings, while enhancing the productivity and happiness of those that occupy them.
JLL Technologies' Enterprise Data Platform (EDP) Platform Engineering team builds the shared services, APIs, and ingestion frameworks that every data and product team at JLL Technologies builds on top of. We're just getting started on reshaping the business of commercial real estate with the power of data and this team is the foundation that makes it possible.

Equal Opportunity

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.