J

Johnson Controls

Provides smart building technology and services

HVAC Service Field Line Manager - Chiller Service Operations

Full-TimeUpdated on 10/23/2026
No salary listed
Expert
Bachelor's
Dublin, Ireland
In Person
Building Trades

About the job

Requirements
  • Previous experience leading or supervising field-based engineering or service teams.
  • Strong technical background within HVAC, refrigeration, chillers, heat pumps, or industrial cooling systems.
  • Proven experience supporting maintenance, commissioning, troubleshooting, and repair activities.
  • Strong leadership, coaching, and people management skills.
  • Experience managing customer relationships within pharmaceutical, life sciences, manufacturing, healthcare, data centre, or similar environments.
  • Ability to prioritise multiple operational demands in a fast-paced service environment.
  • Strong commercial awareness with an understanding of service delivery performance and customer satisfaction metrics.
  • Knowledge of health, safety, and compliance requirements associated with field service operations.
Responsibilities
  • Lead, coach, and develop a team of Chiller Service Engineers, creating a high-performance, customer-focused culture.
  • Drive a strong safety-first mindset, ensuring full compliance with company Health & Safety policies and Zero Harm objectives.
  • Manage the day-to-day operational performance of the field engineering team, ensuring service delivery commitments are achieved.
  • Oversee resource planning, engineer utilisation, work allocation, and emergency response activities.
  • Support engineers with technical escalation, customer issues, and complex troubleshooting requirements.
  • Conduct regular performance reviews, development discussions, and succession planning activities.
  • Ensure all planned maintenance, repair, breakdown, and commissioning activities are completed to the required quality standards.
  • Monitor and improve key operational metrics including productivity, service quality, response times, and customer satisfaction.
  • Partner closely with Service Coordinators, Operations Managers, Sales Teams, and Technical Specialists to ensure effective service delivery.
  • Build and maintain strong customer relationships, acting as an escalation point for service and operational matters.
  • Support recruitment, onboarding, and ongoing technical development of service personnel.
  • Identify opportunities for service growth, equipment upgrades, lifecycle replacement projects, and additional customer support offerings.
  • Ensure accurate completion of service documentation, compliance records, and reporting requirements.
  • Provide visible leadership through regular field engagement, site visits, safety observations, and customer meetings.
  • Create a culture of accountability, teamwork, continuous improvement, and operational excellence.
  • Balance customer expectations, commercial objectives, and resource availability to achieve business targets.
  • Develop team capability through coaching, mentoring, training plans, and technical support.
  • Collaborate closely with technical specialists and factory support teams to resolve complex equipment and customer challenges.
  • Drive service excellence through effective planning, communication, and performance management.
  • Monitor operational KPIs and implement corrective actions where performance improvements are required.
  • Promote proactive customer engagement and ensure a consistently high standard of service delivery.
Desired Qualifications
  • Experience managing teams supporting YORK, Sabroe, Trane, Carrier, Daikin, or similar chiller technologies.
  • Previous experience within pharmaceutical, life sciences, semiconductor, or mission-critical environments.
  • Refrigeration qualification, F-GAS certification, electrical trade qualification, mechanical qualification, or engineering degree.
  • Experience with field service management systems, workforce planning, and operational reporting.
  • Knowledge of industrial refrigeration and ammonia systems.
  • Proven experience driving operational improvements and service business growth.

About the company

Johnson Controls transforms environments where people live, work, learn, and play by providing smart, healthy, and sustainable buildings. It offers comprehensive digital solutions through its OpenBlue platform, serving healthcare, education, data centers, airports, stadiums, manufacturing, and government sectors with a portfolio of building technology, software, and services focused on efficiency, safety, and sustainability. The company operates in more than 150 countries with about 100,000 experts and aims to reimagine building performance to benefit people, places, and the planet.

Company Size

10,001+

Company Stage

IPO

Headquarters

Cork, Ireland

Founded

1885

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Simplify's Take

What believers are saying

  • Q3 2026 sales hit $6.6 billion; organic growth reached 10%, lifting margins.
  • Record backlog reached $21 billion in July 2026, fueled by data-center orders.
  • JCI closed Alloy and Nantum in 2026, expanding OpenBlue and cooling capabilities.

What critics are saying

  • A 2026 HVAC price-fixing lawsuit names JCI alongside Bosch, Carrier, Trane, and others.
  • The 2024 restructuring plan still targets $400 million costs through fiscal 2027.
  • PFAS, asbestos, and environmental liabilities persist after the June 2026 Wisconsin settlement.

What makes Johnson Controls unique

  • OpenBlue now embeds Nantum AI’s occupancy-based HVAC optimization across air and water systems.
  • Alloy Enterprises gives JCI proprietary liquid-cooling components for AI data centers.
  • Johnson Controls sells mission-critical service and controls across 150 countries, creating sticky installed-base revenue.

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Benefits

  • Company Vehicle
  • Health Insurance
  • Dental Insurance
  • Vision Insurance
  • Health Savings Account/Flexible Spending Account
  • Life Insurance
  • Disability Insurance
  • 401(k) Company Match
  • Employee Referral Bonus
  • Wellness Program
  • Employee Assistance Program
  • Paid Vacation

Growth & Insights and Company News

Headcount

6 month growth

-4%

1 year growth

-4%

2 year growth

-4%
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Apr 27th, 2026
Johnson Controls acquires Nantum AI to boost AI-driven energy optimisation in OpenBlue platform

Johnson Controls has acquired Nantum AI, a New York-based developer of AI algorithms for building energy efficiency, to enhance its OpenBlue digital ecosystem. The deal adds advanced AI-driven control capabilities for optimising HVAC systems and reducing energy consumption. Nantum AI's technology enables real-time optimisation of building airflow based on occupancy, extending OpenBlue's capabilities beyond central HVAC systems to include granular, system-wide control. The company has demonstrated energy savings exceeding 10% for customers by leveraging data from occupancy patterns, weather conditions and utility trends. The acquisition expands OpenBlue's optimisation capabilities from water-side systems to include autonomous AI-driven control across both air- and water-side applications. The combined offering is being piloted across complex environments including healthcare campuses and manufacturing facilities.

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Insteel reports fastest revenue growth among building products stocks despite missing Q4 estimates

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Johnson Controls to acquire Alloy Enterprises, boosting data center cooling efficiency by up to 35%

Johnson Controls has signed an agreement to acquire Alloy Enterprises, a Boston-based thermal management technology company, to strengthen its position in the data centre cooling market. Financial terms were not disclosed. Founded in 2020, Alloy Enterprises specialises in advanced direct liquid cooling components that can improve thermal management efficiency by up to 35% and reduce pressure drop by up to 75%, resulting in lower overall cooling system energy use. The company's proprietary Stack Forging manufacturing process creates single-piece components with embedded microgeometries for maximum heat transfer. The acquisition complements Johnson Controls' existing thermal management portfolio and aligns with its strategy to deliver differentiated cooling solutions for AI-driven data centres. The transaction is expected to close in fiscal Q3, subject to regulatory approvals.