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About this Data Center Technician. role at NTT

NTT · Onsite · ZAF, Johannesburg 1 Data Center

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The Skilled Critical Facilities Maintenance Technician has a substantial understanding of their role and applies their knowledge and skill to carry out their responsibilities relating to the operational integrity and regulatory compliance of the data center electrical, mechanical, and fire life safety systems.

This role maintains and follows the processes that maximize customer uptime in the most cost-effective way. This role also ensures that data center problems are identified and repaired quickly, that contractors deliver quality services, and that internal customer demands are met.

The Skilled Critical Facilities Maintenance Technician acts as an informal team leader, fostering a collaborative and innovative team culture focused on achieving operational excellence.


Key Responsibilities:

  • Develops creative approaches to keeping operational costs to a minimum, improves efficiency, and implements new strategies. Systems of responsibility include -
  • O Mechanical responsibilities include chilled water systems and components, HVAC systems such as roof top units, CRAC/CRAH units, and humidification systems.
  • O Electrical responsibilities include electrical/critical power distribution from the Utility/Generator main switchgear through the UPS systems out to the customer load.
  • O Fire Life Safety responsibilities includes wet sprinkler systems and pre-action sprinkler systems as well as their associated detection devices.
  • Tests performance of electromechanical assemblies and electronic voltmeters.
  • Reads blueprints, schematics, diagrams, or technical order to determine methods and sequences of processes.
  • Inspects parts for surface defects.
  • Installs electrical or electronic parts and hardware in housings or assemblies, using hand tools.
  • Aligns, fits or assembles component parts, using hand or power tools.
  • Operates, monitors, maintains, and responds to abnormal conditions in facilities systems. Areas include - Mechanical, Electrical, Fire Life Safety, and Building Monitoring and Control.
  • Analyses systems to ensure best practices for both internal and external customers.
  • Provides feedback to relevant teams on the effectiveness of existing standards and processes.
  • Works with contractors and consultants to review quality assurance for all system expansions, corrections, and upgrades.
  • Works with relevant teams to track and complete an aggressive preventive and predictive maintenance program.
  • Ensures data center operates at maximum operational efficiency, including analyzing existing operating conditions, recommending new technologies and improving overall efficiency, and cost reduction.
  • Manages systems to avoid unplanned customer-impacting events.
  • Works with relevant teams to determine maintenance requirements for mechanical, electrical, and fire life safety systems.
  • Performs other duties as assigned.

Knowledge and Attributes:

  • Understanding of the mechanical, electrical, and fire life safety systems used in a data center environment including, but not limited to the following - electrical distribution and layout, Transformers, PLC’s, Generators, Switchgear, UPS systems, STS’, ATS’ PDU’s, Chilled Water Systems, CRAC/CRAH’s, Pre-Action Sprinkler Systems.
  • Knowledge of NEC, NFPA 70E, NFPA 72, NFPA 25, and compliance issues as well as building codes in regard to fire life safety.
  • Current knowledge in industrial safety best practices (i.e. lockout/tag out, arc flash protection, OSHA and state regulations).
  • Familiarity with data trending / tracking and analysis and the ability to utilize a PC based integrated critical monitoring systems.
  • Ability to process Hands and Eye requests as required i.e., Tape Rotation, Rack and Stack of equipment, inventory hardware, power cycle devices, patch cable install/removal.
  • Demonstrated hands-on experience installing, maintaining, and/or troubleshooting large commercial and industrial systems including -
  • O Chilled Water Systems
  • O Large Centrifugal Chillers
  • O Cooling Towers
  • O Heat Exchangers
  • O Water Treatment Systems
  • O VFD’s and Pumps
  • O HVAC equipment
  • O CRAC/CRAH’s
  • O Humidification Systems
  • O Water heaters
  • O Water/Air filters
  • O BMS and PLC Controls
  • O Emergency Standby Diesel Generator Systems
  • O Fuel/Oil systems
  • O 480/277 and 208/120 electrical generation and distribution
  • O Static UPS Systems
  • O Double Interlock Pre-Action Systems
  • Proficient with MS Office Suite (Word, Excel, PowerPoint, Project).
  • Ability to communicate effectively with customers and internal staff and effectively work in team environment
  • Ability to coordinate, supervise, and communicate with contractors who perform maintenance or upgrade work on these systems.
  • Ability to learn quickly and address issues as they arise during normal working hours or after hours.
  • Ability to logically analyze and solve problems.
  • Ability to operate Hand and Machine Tools (hammer, drill, saw, etc.).
  • Ability to operate electrical tools such as a multi-meter or infrared camera.
  • Ability to operate a forklift.
  • Possess critical thinking and complex problem-solving skills

Academic Qualifications and Certifications:

  • Relevant high school diploma or equivalent required.
  • Relevant advanced qualification or equivalent work-related experience required.
  • Proven experience managing critical power infrastructure, including UPS systems, generators, and power distribution equipment within data centre environments.
  • CPR/First Aid and NFPA70E Certification (can be gained during course of employment).

Required experience:

  • Solid demonstrated experience in a similar role gained within a data center facilities environment
  • Solid demonstrated experience in a mechanical/electrical position within critical facilities (preferably a data center, hospital, semi-conductor, or power plant)
  • Relevant demonstrated experience as a critical facilities maintenance team leader
  • Solid demonstrated hands-on experience installing, maintaining, and/or troubleshooting large commercial and industrial systems including -
  • O Chilled Water Systems
  • O Large Centrifugal Chillers
  • O Cooling Towers
  • O Heat Exchangers
  • O Water Treatment Systems
  • O VFD’s and Pumps
  • O HVAC equipment
  • O CRAC/CRAH’s
  • O Humidification Systems
  • O Water heaters
  • O Water/Air filters
  • O BMS and PLC Controls
  • O Emergency Standby Diesel Generator Systems
  • O Fuel/Oil systems,
  • O 480/277 and 208/120 electrical generation and distribution
  • O Static UPS Systems
  • O Double Interlock Pre-Action Systems

Workplace type:

On-site Working

About NTT DATA
NTT DATA is a $30+ billion business and technology services leader, serving 75% of the Fortune

Global 100. We are committed to accelerating client success and positively impacting society through

responsible innovation. We are one of the world’s leading AI and digital infrastructure providers, with

unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and

application services. Our consulting and industry solutions help organizations and society move

confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more

than 70 countries. We also offer clients access to a robust ecosystem of innovation centers as well as

established and start-up partners. NTT DATA is part of NTT Group, which invests over $3 billion each

year in R&D.


Equal Opportunity Employer
NTT DATA is proud to be an Equal Opportunity Employer with a global culture that embraces diversity. We are committed to providing an environment free of unfair discrimination and harassment. We do not discriminate based on age, race, colour, gender, sexual orientation, religion, nationality, disability, pregnancy, marital status, veteran status, or any other protected category. Join our growing global team and accelerate your career with us. Apply today.


Third parties fraudulently posing as NTT DATA recruiters 

NTT DATA recruiters will never ask job seekers or candidates for payment or banking information during the recruitment process, for any reason. Please remain vigilant of third parties who may attempt to impersonate NTT DATA recruiters whether in writing or by phone in order to deceptively obtain personal data or money from you. All email communications from an NTT DATA recruiter will come from an @nttdata.com email address. If you suspect any fraudulent activity, please contact us.

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About NTT

Is innovation part of your DNA? Do you want to enable a connected future for people, organizations, and society? Join our growing global NTT family and you’ll be part of the world’s largest ICT company (by revenue). We’ve combined the capabilities of 28 remarkable companies to become one, leading technology services provider. Together, we help our people, clients, and communities do great things with technology to create a more secure and connected future. We employ 40,000 people across 57 countries. By bringing together the world’s best technology companies and emerging innovators, we work together to deliver sustainable outcomes to businesses and the world. Innovation is part of our DNA. W

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