Job Description

Build your best future with the Johnson Controls team!

Who we are:

Johnson Controls is global leader in smart, healthy, and sustainable buildings. Our mission is to reimagine the performance of buildings to serve people, places, and the planet. Join a winning team that enables you to build your best future! Our teams are uniquely positioned to support a multitude of industries across the globe. You will have the opportunity to develop yourself through meaningful work projects and learning opportunities. We strive to provide our employees with an experience focused on supporting their physical, financial, and emotional wellbeing. Become a member of the Johnson Controls family and thrive in an empowering company culture where your voice and ideas will be heard – your next great opportunity is just a few clicks away!

What We Offer:

• Competitive salary
• Paid vacation/holidays/sick time
• Comprehensive benefits package including 401K, medical, dental, and vision care.
• On-the-job/cross-training opportunities
• Encouraging and collaborative team environment
• Dedication to safety through our Zero Harm policy

What you will do:

Join our Data Center Advanced Cooling Controls team as an IoT Software Engineer II, contributing to the development of next‑generation, edge‑connected control platforms that optimize thermal performance, energy efficiency, and reliability in hyperscale and enterprise data centers.

You will focus on prototyping and developing IoT‑centric software components that integrate sensors, edge compute, cloud connectivity, and advanced control algorithms into a cohesive, high‑performance system. This role is ideal for an engineer who thrives at the intersection of distributed systems, device connectivity, and real‑time data processing.

This position is 100% on‑site at our new Controls Product Development Center and Lab in Glendale, WI, where you’ll collaborate closely with cross‑disciplinary teams and work hands‑on with real products. The role may include up to 20% travel .

How you will do it:

• Develop IoT software components for data‑center cooling control systems
• Prototype new features rapidly and iterate based on system‑level behavior
• Implement device connectivity using MQTT, OPC UA, Modbus, BACnet, REST APIs
• Design, build, and deploy containerized software services for edge environments
• Develop and maintain Docker/OCI‑based microservices for distributed IoT applications
• Work with real‑time and embedded environments (RTOS experience a plus)
• Collaborate with controls, modeling, and AI/ML teams to integrate algorithms into production software
• Develop tools and scripts for data ingestion, time‑series processing, and diagnostics
• Participate in code reviews, design discussions, and continuous improvement initiatives
• Support system‑level testing, debugging, and validation in lab environments
• Document designs, interfaces, and workflows to support cross‑functional team

What we look for:

Required Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, Electrical Engineering, or related field
• 2+ years of professional software development experience
• Strong programming skills in Python and C/C++
• Experience with IoT protocols (MQTT, OPC UA, Modbus, BACnet)
• Hands‑on experience developing containerized applications (Docker/OCI)
• Understanding of microservices architecture and container orchestration on edge devices
• Experience with REST/GraphQL APIs
• Understanding of time‑series or signal‑based data processing
• Ability to work with embedded or resource‑constrained systems
• Strong problem‑solving skills and ability to work under general supervision
• Excellent communication and documentation skills
  

Preferred Qualifications

• Familiarity with reliability engineering concepts (FMEA, PHM)
• Experience with data‑center systems, HVAC, or building automation
• Experience with CI/CD pipelines for embedded or edge systems
• Knowledge of cybersecurity principles for IoT devices
• Exposure to RTOS environments

SALARY RANGE : $100,000-$130,000 (Salary to be determined by the education, experience, knowledge, skills, and abilities of the applicant, internal equity, and alignment with market data.) This role offers a competitive Bonus plan that will take into account individual, group, and corporate performance.  This position includes a competitive benefits package. The posted salary range reflects the target compensation for this role. However, we recognize that exceptional candidates may bring unique skills and experiences that exceed the typical profile. If you believe your background warrants consideration beyond the stated range, we encourage you to apply. To support an efficient and fair hiring process, we may use technology assisted tools, including artificial intelligence (AI), to help identify and evaluate candidates. All hiring decisions are ultimately made by human reviewers. For details, please visit the About Us tab on the Johnson Controls Careers site at

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