Staff Software Engineer, AI Platform

About this role

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.

# About the team

We are building JLL's internal AI platform: the layer every team in the firm uses to ship AI agents and AI-backed products. That means a gateway that puts a large and growing set of models from multiple providers behind one API, a shared chat surface that makes any agent reachable by employees across the firm, the developer tooling that takes an agent from an idea to something running in production, etc.

You would join early enough to shape what this platform becomes. The foundations are live and already carrying production traffic, and the decisions still ahead of us are the ones that determine how every team at JLL builds with AI. Few engineers get the chance to set that direction at a firm this size, and fewer still get to see it in use across the business within weeks of building it.

# About the role

This is a Staff level individual contributor role on a young platform. You will set technical direction rather than receive it: choosing the abstractions other teams will build against, deciding what belongs in the platform and what does not, and being accountable for whether those choices still look right a year from now.

The work is genuinely both halves of the title. It is serious distributed systems engineering, with a gateway on the critical path of everything the firm builds, and it is AI engineering, where the hard problems are model routing, evaluation, guardrails, token...