At Jabil (NYSE: JBL) we are proud to be a trusted partner for the worlds top brands offering comprehensive engineering supply chain and manufacturing solutions. With 60 years of experience across industries and a vast network of over 100 sites worldwide Jabil combines global reach with local expertise to deliver both scalable and customized solutions. Our commitment extends beyond business success as we strive to build sustainable processes that minimize environmental impact and foster vibrant and diverse communities around the globe.

How will you make an impact

Jabil is seeking a PLC Controls & Automation Engineer to serve as the technical authority for automation architecture across advanced liquid cooled factory and data center ecosystems. This role drives the controls strategy standards and system level design for mission critical cooling infrastructure spanning central plant through IT rack level systems. This engineer will lead with deep technical expertise showcasing an ability to outline architectures author control philosophies and sequences of operations ensuring scalability write reliable and maintainable automation coding for solutions across multiplatform PLC environments.

Job Title: Principal PLC Controls & Automation Engineer

Organization: Data Center Infrastructure (DCI) Team

Location:Remote* OR Austin TX

*Requires up to 20% domestic and/or international travel (rare)

ESSENTIAL DUTIES AND RESPONSIBILITIES

Technical Leadership

• Personally architect build and deploy PLC control systems for complex liquid cooled factory and data center environments owning solutions from concept through commissioning.
• Write structure and maintain production grade PLC SCADA and HMI code as the primary technical contributor setting the bar for quality performance and maintainability through direct execution.
• Establish engineering standards templates and reusable design frameworks.
• Lead design reviews FAT/SAT validation strategies and commissioning plans.

PLC & IPC-Based PLC & Advanced Programming (Multi-Platform Expertise)

• Design and implement PLC systems (Allen-Bradley Siemens Schneider GE and other industrial PLC ecosystems).

• Design and implement IPC/Soft PLC systems (Beckhoff TwinCAT Siemens IPC Codesys).
• Develop structured modular control logic using IEC 61131-3 languages (ST FBD Ladder).
• Implement through direct coding not delegation:
  • Real-time control (EtherCAT Profinet Ethernet/IP)
  • Advanced algorithms (PID sequencing state machines)
  • Edge processing data buffering and protocol conversion (OPC UA MQTT)

SCADA & HMI (Multi-Platform Expertise)

• Architect and deploy SCADA systems across platforms such as:
  • Ignition Siemens WinCC Rockwell FactoryTalk
  • AVEVA/Wonderware Schneider Citect
  • GE iFIX Beckhoff HMI web-based SCADA
• Design high-performance HMIs alarm systems and historian integration.
• Enable integration with MES cloud platforms and enterprise analytics systems.

Liquid Cooling System Implementation

• Build and commission automation solutions for a full liquid cooling ecosystem including chillers and central plant systems primary and secondary pumping loops cooling distribution units (CDUs)heat exchangers and racklevel liquid cooling.
• Directly implement control strategies for flow pressure temperature deltaT control variable speed pumps and fans and load scaling for energy optimization.

Sequence of Operations (SOO) Ownership

• Author implement and validate detailed Sequences of Operations personally translating operational intent directly into PLC logic.
• Build SOO that are logicready faulttolerant commissionable and maintainable
• Execute and refine SOO during FAT SAT and live operation based on observed system performance.

Leak Detection & Mitigation Execution

• Design and implement leak detection and mitigation logic firsthand integrating sensors valves pumps and alarms directly into PLC control strategies.
• Focus on building automated responses for zone isolation controlled shutdowns or rampdowns protection of IT equipment and critical infrastructure.
• Ensure fail safe behavior through tested and fieldproven logic.

BMS & EPMS Integration

• Integrate control systems with:
  • BMS (HVAC liquid cooling environmental systems)
  • EPMS (power monitoring UPS switchgear)
• Define and code data models telemetry points and system boundaries through hands on configuration and validation.
• Implement communication via BACnet Modbus OPC UA.
• Enable unified system architecture across BMS EPMS PLC and MES platforms.
• Support energy monitoring alarm management and event-driven control actions.

Commissioning & Field Execution

• Lead commissioning through direct participation including FAT SAT integrated systems testing and live startup.
• Serve as the primary technical executor during critical milestones and escalations.
• Tune and optimize systems in real operating conditions.

Standards Built Through Practice

• Establish controls standards architectures and best practices by building and proving them in production systems.
• Mentor other engineers through working sessions paired programming and field execution not design reviews alone.
• Drive continuous improvement by evolving standards based on operational data and lessons learned.

KNOWLEDGE REQUIREMENTS

• Excellent interpersonal and communication skills
• Creative self-motivated accountable and team-oriented
• Able to work independently with minimal oversight
• Proficient in reading analyzing and interpreting general business publications professional journals technical procedures and government regulations
• Skilled in writing reports business correspondence and procedural guides
• Effective at presenting information and responding to management clients and public queries
• Ability to mentor engineers and influence cross functional teams.
• Comfortable working as part of a global team
• Capable of assessing projects articulating risks and developing project milestones
• Familiar with stage-gate processes in project lifecycle management (PLCM)
• Able to mentor less experienced engineers

EDUCATION & EXPERIENCE REQUIREMENTS

Required Qualifications

• Bachelors degree in Electrical Engineering Systems Engineering or Controls Engineering
• 8 years of progressive PLC and controls engineering experience.
• Demonstrated expert level proficiency in AllenBradley and Siemens PLC platforms.
• Proven experience owning controls architecture and SOO for complex automated systems.
• Strong background in industrial networking instrumentation and control theory.

Preferred Qualifications

• Masters degree preferred
• Deep experience with liquidcooled data centers highdensity compute or advanced thermal systems.
• Experience in critical facilities NPI programs or largescale infrastructure deployments.
• Background in redundant systems uptime driven design and risk mitigation.

About the Data Center Infrastructure (DCI) Team:

The DCI team consists of technical subject matter experts who specialize in end-to-end large scale physical infrastructure that powers and enables modern data centers. This includes power distribution systems such as transformers substations generators switchgear switch panels busways ATS units EDPM BMS systems and control panels as well as cooling solutions ranging from traditional evaporative and indirect cooling systems to emerging liquid cooling technologies including chillers heat exchangers CDUs pumps and secondary fluid networks. The team also addresses the mechanical structures that house these systems - hot aisle containment steel enclosures blanking panels cable trays and fiber and networking infrastructure.

The DCI team operates as a cross-industry center of excellence partnering primarily with various cloud providers across the industry. Team members function as deeply technical subject matter experts who engage directly with customers and supply chain partners to assess requirements identify challenges and design infrastructure solutions end-to-end. The ideal contributor brings engineering-level expertise in either power or cooling disciplines a working knowledge of the full infrastructure dependency chain and the ability to translate that expertise into clear recommendations and collaborative problem-solving with both technical and business stakeholders.

The pay range for this role is $132400 - $238400. Job-related non-discriminatory factors used to determine the actual offered rate include qualifications and experience geographic location education external market data and consideration of internal equity. The anticipated close date of this job requisition is: June 30 2026.

As part of the total rewards package this position is eligible for a short-term incentive based on addition Jabil offers benefits to enhance your health wealth and resilient self. These include medical dental and vision insurance plans; paid time off accruing at a rate of 3.07 hours during your first year of employment; 4 weeks of paid parental leave; in 2026 11 company-paid holidays (9 fixed holidays and 2 optional floating holidays) subject to change yearly; 401(k) retirement plan; and employee stock purchase plan.

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Jabil including its subsidiaries is an equal opportunity employer and considers qualified applicants for employment without regard to race color religion national origin sex sexual orientation gender identity age disability genetic information veteran status or any other characteristic protected by law.

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