Job Description
ABOUT COOLIT SYSTEMS INC.
Founded in Calgary, Alberta in 2001, CoolIT Systems is the leading Direct Liquid Cooling technology provider for data centers, supercomputers, and desktop computers. We design and manufacture solutions used by the largest tech companies globally.
Recognized as one of “The Americas’ Fastest Growing Companies 2026” by Financial Times and honored with the Deloitte Fast 50 Clean Technology award in 2026, as well as the Deloitte Fast 500 distinction in both 2021 and 2026, CoolIT's rapid growth is capturing global attention.
As demand for generative AI, high performance computing and cloud solutions rapidly expands, there has never been a more exciting time to join our team.
WHAT YOU’LL DO:
Role:
Reporting to the Control Systems & Software Engineering Manager, the PLC Programmer will be responsible for the control system design and development for Direct Liquid Cooling products such as Coolant Distribution Units.
Responsibilities:
Collaborate with project managers, mechanical engineers, software engineers, electrical engineers and other stakeholders to define project requirements and specifications.
Design and develop PLC control systems using industry-leading hardware and software platforms.
Develop and debug PLC code in accordance with industry standards and best practices.
Develop advanced PID, fault tolerant, redundant, and self-learning control systems.
Develop detailed control narratives, process shutdown keys, process flow charts and interface control documentation to provide a comprehensive overview of the system functionality and interactions.
Conduct thorough testing and validation of PLC systems to ensure reliability and performance.
Provide technical support and guidance to junior engineers and technicians as needed.
Participate in on-site installation, commissioning, and maintenance activities as required.
Stay current with advancements in PLC technology and recommend improvements to existing systems.
WHO YOU ARE:
Basic Qualifications:
Bachelor's degree in Electrical Engineering, Computer Engineering, or related field.
Minimum of 5 years of experience in system design, and development of PLC programming.
Proficiency in programming languages commonly used in PLC systems (e.g., ladder logic, structured text).
Strong understanding of industrial automation concepts and principles including communication protocols such as (MODBUS TCP/IP & RTU/ASCII, CANBUS, PROFIBUS/PROFINET).
Experience with PLC hardware and software from leading manufacturers (e.g., Siemens, Allen-Bradley, Unitronics, Wago).
HMI integration
RESTFUL implementation of MQTT.
Ability to read and interpret P&IDs and electrical schematics.
Preferred Qualifications:
Possess P.Eng designation or similar professional credentials.
Professional certifications in PLC programming or automation.
Knowledge of safety standards and regulations relevant to industrial automation.
Experience with CODESYS programming.
REDFISH implementation.
Skills:
Excellent problem-solving skills and attention to detail.
Effective communication and teamwork abilities.
WHY COOLIT?
We strive to be an employer of choice and as such we believe in rewarding our employees with career and development opportunities that will maintain and strengthen our culture while aligning to our vision and values.
We are a company that is full of vibrant, innovative people who love what we do. Our comprehensive benefits package includes:
Vacation and flex days, and paid company-wide shutdown during the holiday season.
Comprehensive benefits including Dental, Drugs, Optical, Paramedical and Health Spending. These costs are covered by CoolIT and are enacted from your first day.
Dress for your day – in a casual yet professional environment.
Retention rewards like “The Big Coffee Break” that reward tenure with additional vacation time and a monetary bonus.
Employee ownership program.
We thank every candidate in advance, however, only those selected for an interview will be contacted.
Founded in Calgary, Alberta in 2001, CoolIT Systems is the leading Direct Liquid Cooling technology provider for data centers, supercomputers, and desktop computers. We design and manufacture solutions used by the largest tech companies globally.
Recognized as one of “The Americas’ Fastest Growing Companies 2026” by Financial Times and honored with the Deloitte Fast 50 Clean Technology award in 2026, as well as the Deloitte Fast 500 distinction in both 2021 and 2026, CoolIT's rapid growth is capturing global attention.
As demand for generative AI, high performance computing and cloud solutions rapidly expands, there has never been a more exciting time to join our team.
WHAT YOU’LL DO:
Role:
Reporting to the Control Systems & Software Engineering Manager, the PLC Programmer will be responsible for the control system design and development for Direct Liquid Cooling products such as Coolant Distribution Units.
Responsibilities:
Collaborate with project managers, mechanical engineers, software engineers, electrical engineers and other stakeholders to define project requirements and specifications.
Design and develop PLC control systems using industry-leading hardware and software platforms.
Develop and debug PLC code in accordance with industry standards and best practices.
Develop advanced PID, fault tolerant, redundant, and self-learning control systems.
Develop detailed control narratives, process shutdown keys, process flow charts and interface control documentation to provide a comprehensive overview of the system functionality and interactions.
Conduct thorough testing and validation of PLC systems to ensure reliability and performance.
Provide technical support and guidance to junior engineers and technicians as needed.
Participate in on-site installation, commissioning, and maintenance activities as required.
Stay current with advancements in PLC technology and recommend improvements to existing systems.
WHO YOU ARE:
Basic Qualifications:
Bachelor's degree in Electrical Engineering, Computer Engineering, or related field.
Minimum of 5 years of experience in system design, and development of PLC programming.
Proficiency in programming languages commonly used in PLC systems (e.g., ladder logic, structured text).
Strong understanding of industrial automation concepts and principles including communication protocols such as (MODBUS TCP/IP & RTU/ASCII, CANBUS, PROFIBUS/PROFINET).
Experience with PLC hardware and software from leading manufacturers (e.g., Siemens, Allen-Bradley, Unitronics, Wago).
HMI integration
RESTFUL implementation of MQTT.
Ability to read and interpret P&IDs and electrical schematics.
Preferred Qualifications:
Possess P.Eng designation or similar professional credentials.
Professional certifications in PLC programming or automation.
Knowledge of safety standards and regulations relevant to industrial automation.
Experience with CODESYS programming.
REDFISH implementation.
Skills:
Excellent problem-solving skills and attention to detail.
Effective communication and teamwork abilities.
WHY COOLIT?
We strive to be an employer of choice and as such we believe in rewarding our employees with career and development opportunities that will maintain and strengthen our culture while aligning to our vision and values.
We are a company that is full of vibrant, innovative people who love what we do. Our comprehensive benefits package includes:
Vacation and flex days, and paid company-wide shutdown during the holiday season.
Comprehensive benefits including Dental, Drugs, Optical, Paramedical and Health Spending. These costs are covered by CoolIT and are enacted from your first day.
Dress for your day – in a casual yet professional environment.
Retention rewards like “The Big Coffee Break” that reward tenure with additional vacation time and a monetary bonus.
Employee ownership program.
We thank every candidate in advance, however, only those selected for an interview will be contacted.
💡 Quick Summary
Seeking a career-building opportunity? The PLC Programmer position is now open for candidates interested in the Software Developer Jobs sector. This role in Calgary offers a professional environment and growth potential.
Requirement Snapshot: Candidates should possess basic communication skills, a proactive attitude, and the ability to work in a team. Experience in Software Developer Jobs is a plus.
