Think You Would Be A Good Fit For Our Team?

Harn R/O Systems, Inc. began its involvement in the reverse osmosis industry in 1972 as a general contractor installing other manufacturers’ equipment.  From hands-on experience we learned to design and manufacture equipment for reliability and ease of maintenance and operation. Our company is unique in that we are working in membrane facilities daily, assisting operators and owners in the operation, maintenance and service of their systems.  This gives us the experience and ability to design, build, and service systems that give the greatest value to their owners.

All our equipment is custom-designed for the specific application.  In this way the Owner is assured of getting the best and most efficient equipment possible.  Harn R/O Systems, Inc. is known throughout the membrane industry for its emphasis on quality and attention to detail.  We manufacture our equipment in-house in our 40,000 sq-ft facility in Venice, Florida, thereby controlling the quality and delivery.  We provide 24-hour a day, 365-day a year service and stock a wide variety of components and consumables associated with system operation and maintenance. Membrane treatment has been our only business since our formation and will continue to be our industry focus.


Open Positions:

Project Engineer / Manager

Company Overview: 

Founded in 1972, the Harn R/O division of Komline-Sanderson is a leader in the membrane treatment system design and fabrication industry, nationwide. Our company is based out of beautiful Venice, Florida, but our projects are located throughout the country. We are expanding our team and seeking candidates who can work effectively in a collaborative, entrepreneurial environment to help us on our mission. We are seeking engineers with a range of experience from entry-level to project managers.

Position Overview:

A successful Project Engineer/Manager will build relationships with clients and vendors and coordinate project details to ensure successful, on-time project completion. In addition, the Project Engineer/Manager will provide engineering support for projects by assisting with the design, development, and release of project documentation.

The position is based at location in Venice, FL.

Essential Functions and Responsibilities:

  • Perform analytical design and specify system components for reverse osmosis and low-pressure membrane systems with an emphasis on engineering and problem solving
  • Create proposals for project bids including estimating process costs
  • Assist in developing the project schedule and coordinate with the client’s engineer and contractor
  • Assist with preparing all technical requirements in all aspects of the project, including P&IDs, equipment layouts, and equipment submittals for purchase
  • Track and control project progress and costs
  • Interface with vendors (request quotes, review proposals, develop customer submittals) to select the most cost-effective components
  • Write and edit O&M manuals including coordinating with vendors and sub-contractors to obtain their appropriate documentation
  • Work with Harn R/O’s CAD staff and fabrication technicians to develop detailed fabrication design and interface during fabrication
  • Work with the client’s contractor and Harn R/O installation supervision personnel to install equipment, supervise start-up and testing, demonstrate performance, and train operators

Desired Skills and Experience:

  • Bachelor’s degree in Mechanical, Chemical, Environmental or Civil Engineering preferred
  • Possess excellent written and oral communication skills
  • Highly organized and able to work within rigid time constraints with superb attention to detail
  • Desire to be a part of an entrepreneurial, energetic team and handle a wide range of responsibilities
  • Knowledge of AutoCAD and Autodesk Inventor beneficial but not required

Salary commensurate with experience, excellent benefits provided. Please send resumes or inquiries to; (941) 488-9671.



Equipment Fabricator / Technician

Premier Manufacturer of Commercial Water Treatment / Reverse Osmosis Equipment with a 45-year history of growth is seeking career minded individuals willing to learn multiple skills.   Plumbing, electrical, welding, painting and/or other skills required to manufacture water treatment equipment preferred. We will train the right individuals.

Plant hours are Monday through Friday 8:00 am to 4:30 pm, overtime and travel out of town are required dependent upon production needs. The production facility is air-conditioned.


  • Fabricate and assemble PVC pipe and fittings in accordance with production guidelines
  • Assemble Steel and Aluminum pipe and fittings in accordance with production guidelines
  • Fabricate and assemble structural fiberglass to complete frame assemblies
  • Run wiring and conduit for instrumentation and actuated valves
  • Pack and Crate completed systems and parts for shipment
  • Prepare items for shipping and storage
  • Stock inventory
  • Other shop duties as assigned
  • Assist senior technicians with installations and start-up of completed systems, this will require out of town travel 


  • Positive attitude, excellent communication skills, and the ability to work well in a team environment
  • Follow the process, attention to detail, pride in the finished product
  • Ability to lift to 50 lbs
  • Willing to learn
  • Valid driver’s license
  • We are a drug-free workplace and you will be required to pass a drug test


  • Paid time off – vacation and sick time
  • Paid Holidays
  • Health Insurance coverage including Dental and Eye policies. 100% of the employee premiums paid after 90 days of employment, and up to 50% of dependents. 
  • 401K / Profit-sharing plan
  • Compensation is negotiable based upon experience


Apply Today

Please use the form below to submit your information and a member of our team will reach out to you.