Technician

JLL · Busan, South Korea · full time · On site · 2 days ago

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Posted October 18, 2026 · Read from JLL
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JLL empowers you to shape a brighter way.

Our people at JLL are shaping the future of real estate for a better world by combining world class services, advisory and technology for our clients. We are committed to hiring the best, most talented people and empowering them to thrive, grow meaningful careers and to find a place where they belong. Whether you’ve got deep experience in commercial real estate, skilled trades or technology, or you’re looking to apply your relevant experience to a new industry, join our team as we help shape a brighter way forward.

To achieve excellence in preventative and reactive maintenance programs incorporating industry best practice, innovative maintenance techniques and statutory and contractual compliance. Oversee the day-to-day management and control of all plant, mechanical and electrical systems and co-ordinate the remedial action in the event of critical incidents. To provide supervision and direction to multi skilled Engineering Operations and teams made up of directly employed staff and appointed vendors. Ensure that all staff and vendors employed within the client’s facilities strictly adhere to client and JLL’s policies and procedures. Reports to the DC Site Lead.

Major Responsibilities

  • Ensure site operations, including incident escalation in accordance with approved Client/JLL procedures
  • Supervise planned and reactive activities utilizing the CMMS platform
  • To check on site repair and maintenance carried out by subcontractors to ensure work completion
  • Ensure the implementation of safe systems on site activities
  • Montor and operate data centre infrastructure systems, including HVSB, transformer, LVSB, Generators, Fuel System, UPS system, Busway, Power Distributions Units, ATS, HVAC, Chilled water system, Fan Wall units, Plumbing and drainage, Fire detection and suppression system, Building management system BMS/CMS
  • Perform routine inspections, preventive maintenance, and basic troubleshooting of mechanical and electrical systems
  • Respond promptly to alarms, systems alerts and emergency situations
  • Carry out computational tasks such as load calculations, capacity planning support, thermal assessments and performance data analysis
  • Maintain accurate logs, documentation and compliance records for all operational activities
  • Actively promote teamwork and collaborate with internal teams and external vendors and across the business to ensure smooth operations, support service delivery and incident resolution
  • Co-ordinate meetings periodically with contractors to ensure that required standards are established and maintained, and develop corrective action plans when, or if performance falls below
  • Attend trainings on equipment operational procedures, including emergency procedures and requirements
  • Ensure compliance with statutory regulations on fire, health and safety standards
  • Ensure all safety procedures, including Crisis Management/ Business Continuity and Emergency Procedures are maintained at all times
  • Ensures all work is performed in accordance with Health & Safety regulations, data center protocols, and permit-to-work procedures
  • Ensure that maintenance documentation meets the required standards and sufficient information is provided to operate an effective asset management regiment
  • Participate in site reviews, including maintenance standards, equipment replacement, security, change control, single points of failure, Tier adherence and operational risk
  • Perform additional tasks as required by the Site Lead.

Desired experience and technical skills

  • Diploma or higher qualification in Electrical Engineering, Mechanical Engineering, Building Services, Computer Engineering, or a related technical field
  • Minimum 3 years of hands-on experience in data centres, critical facilities, or industrial plant operations
  • Demonstrated ability to perform computational work, including interpreting technical schematics, conducting basic engineering calculations, and analysing operational metrics
  • Strong technical knowledge and practical, hands-on experience with critical infrastructure systems such as HV/LV electrical distribution, UPS, diesel generators, switchgear, chillers, and precision cooling units
  • Experience in managing escalations and emergency situations with composure and effectiveness
  • Ability to follow SOPs/EOPs and adhere to permit-to-work procedures
  • Ability to work independently and as part of a team in a high-pressure, 24/7 environment
  • Basic documentation and reporting skills

Location:

On-site –Busan, Korea

If this job description resonates with you, we encourage you to apply even if you don’t meet all of the requirements. We’re interested in getting to know you and what you bring to the table!

At JLL, we harness the power of artificial intelligence (AI) to efficiently accelerate meaningful connections between candidates and opportunities. Using AI capabilities, we analyze your application for relevant skills, experiences, and qualifications to generate valuable insights about how your unique profile aligns with the specific requirements of the role you're pursuing.

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For additional details please see our career site pages for each country.

Jones Lang LaSalle (“JLL”) is an Equal Opportunity Employer and is committed to working with and providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation because of a disability for any part of the employment process – including the online application and/or overall selection process – you may email us at HRSCLeaves@jll.com. This email is only to request an accommodation. Please direct any other general recruiting inquiries to our Contact Us page > I want to work for JLL.

Employer
JLL
Location
Busan, South Korea · On site
Contract
full time