Since 1927 Karrena has been a recognized leader the refractory filed, specializing in the design, supply, installation and maintenance of refractory linings, acid resistant linings, fireproofing, and thermal insulation. We employee a variety of refractory professionals.

Apply for an open position listed below or feel free to submit a resume to us.

Current Opportunities


Warehouse Mechanic  |  USA

Seeking a full-time Warehouse Mechanic to perform assemble, maintenance and repair duties out of our The Woodlands, Texas division.

Key Responsibilities

  • Assembly, maintenance, and repair of construction (refractory) equipment, machinery, tools and vehicles ensuring functionality and reliability of machines, engines, electrical motors and mechanical systems
  • Ensure that the warehouse is clean, organized and stocked. Updating inventory will be required
  • Warehouse Technician will be qualified to operate a forklift and/or scissor-lift and will assist with moving loads (on and off site) when requested
  • Willing to travel and temporarily  deployed as a mechanic on a construction site as needed

more  ...


Applications Engineer-Thermal Design  |  USA

We are seeking an Applications Engineer who will focus on developing thermal designs, estimates, and proposals in response to requests for new as well as aftermarket mechanical draft cooling towers opportunities

Key Responsibilities

  • Review and respond to customer inquiries for OEM and aftermarket cooling tower opportunities.
  • Optimize proposed cooling tower design in accordance with project specification by utilizing proprietary thermal rating software and company design guidelines.
  • Develop project cost estimate for material, equipment, and labor
  • Write technical proposals and coordinate commercial evaluation with risk management
  • Review cost estimates with procurement and/or construction departments as necessary to ensure cost accuracy and develop practical project execution plan
  • Respond to customer questions and participate in technical bid evaluation meetings
  • Communicate project requirements to project team after contract award and assist with project execution as needed.
  • Continuously seek out new bidding opportunities and methods to improve proposal costs.
  • Develop relationships with prospective clients, while maintaining existing client relationships.
  • Beta test and maintain thermal design software.

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Millwright  |  Texas, USA

We are seeking a Millwright for plans, lays out, positions, alignment, and fitting together fabricated parts of structural metal products.  Welds, tacks, and assembles metal components of products such as modules, structural steel, pipe racks and plate welding with electric arc-welding equipment by performing the following duties.

Qualification Requirements:

  • Five years Structural Welder/Fitter experience, high school diploma or GED equivalent
  • Knowledge of industrial construction and characteristics of all equipment and functions related to the position
  • Driver’s license and acceptable driving record
  • Maintenance: 1 year (Required)
  • Mechanical Knowledge: 1 year (Required)
  • Must be able to meet all physical demands

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Refractory Superintendent  | Various Locations throughout the US

The refractory general supervisor will oversee our refractory and steel construction site works.  This individual will manage site logistics and contract operations on all heavy construction sites. With knowledge of all phases of construction, this position will be involved in all divisions of work, methods, codes, materials, safety, quality control, project scheduling.

contact us for more  ...