Senior Software Engineer

Overview

JLL supports the Whole You, personally and professionally.

Our people at JLL are shaping the future of real estate for a better world by combining world class services, advisory and technology to our clients. We are committed to hiring the best, most talented people in our industry; and we support them through professional growth, flexibility, and personalized benefits to manage life in and outside of work. Whether you’ve got deep experience in commercial real estate, skilled trades, and technology, or you’re looking to apply your relevant experience to a new industry, we empower you to shape a brighter way forward so you can thrive professionally and personally.

We are seeking an experienced Backend Developer with specialized expertise in SkySpark to join our team. This role requires a strong technical foundation in building scalable, distributed systems and will involve working with building management systems while supporting our production environment across global time zones.

Key Responsibilities
Design, develop and maintain backend services with a focus on API development and WebSocket implementations that can handle heavy traffic and scale efficiently
Create and enhance SkySpark Functions, Rules, and Extensions to support our building management systems
Develop and deploy microservices in Azure Cloud environments
Implement message-driven and event-driven architectures
Support the production environment, including incident response and resolution
Participate in the entire software development lifecycle including CI/CD processes

Required Qualifications

Strong proficiency in Java and/or Python for API development and WebSocket implementation
Minimum 3+ years experience with SkySpark, including Fantom and Axon programming for developing Functions, Rules, and Extensions
Experience with Azure Cloud services and microservices architecture
Demonstrated experience with message-driven and event-driven development using technologies such as MQTT, Kafka, RabbitMQ, or similar systems
Strong understanding of authentication and authorization protocols including OAuth, OIDC, and Federated Identity
Experience with CI/CD pipelines and commitment to automation and high-quality software development
Availability to work in alignment with US West Coast morning hours
Strong problem-solving skills with ability to support production environments and contribute to incident management

Preferred Qualifications
Experience with Building Management System (BMS) protocols including BACnet, Modbus, OPC, and Niagara
Knowledge of distributed computing principles and practices
Experience working in a global team across multiple time zones
Background in IoT or building automation systems
Knowledge of Cursor AI Code Editor, AngularTS/React.JS and/or any other GenAI / AgenticAI tools is Plus
Knowledge of performance optimization techniques,
Thorough understanding of AngularTS/React.JS and its core principles.
Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model.
Strong knowledge of HTML5, CSS3, SCSS, and related libraries/frameworks.
Proficiency in UI/UX design principles and responsive web design.
Experience with RESTful APIs integration and JSON.
Solid understanding of version control systems (such as Git).
Ability to work in a fast-paced environment and manage multiple projects simultaneously.
Excellent problem-solving skills and attention to detail.
Strong communication and collaboration skills.
Experience working in an Agile/Scrum development environment.
Bachelor’s degree in computer science or Web Development.

What we can do for you:
At JLL, we make sure that you become the best version of yourself by helping you realize your full potential in an entrepreneurial and inclusive work environment. We will empower your ambitions through our dedicated Total Rewards Program, competitive pay and benefits package.

If this job description resonates with you, we encourage you to apply even if you don’t meet all of the requirements below. 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.

About JLL –

We’re JLL—a leading professional services and investment management firm specializing in real estate. We have operations in over 80 countries and a workforce of over 102,000 individuals around the world who help real estate owners, occupiers and investors achieve their business ambitions. As a global Fortune 500 company, we also have an inherent responsibility to drive sustainability and corporate social responsibility. That’s why we’re committed to our purpose to shape the future of real estate for a better world. We’re using the most advanced technology to create rewarding opportunities, amazing spaces and sustainable real estate solutions for our clients, our people, and our communities.

Our core values of teamwork, ethics and excellence are also fundamental to everything we do and we’re honored to be recognized with awards for our success by organizations both globally and locally.

Creating a diverse and inclusive culture where we all feel welcomed, valued and empowered to achieve our full potential is important to who we are today and where we’re headed in the future. And we know that unique backgrounds, experiences and perspectives help us think bigger, spark innovation and succeed together.