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Life Support System Technician

Position Type: Full-time, Hourly

Department: Zoo

Compensation Range: $20.69 - $23.10/hr
Closing Date: Open until position is filled.

Job Summary:  To help maintain and monitor the various Life Support Systems for the Zoo’s animal habitats.  Exhibits and buildings include: Aquarium and Reptile building, Otter, Penguin, Sea Lion, Polar Bear, and the future Elephant and Hippo exhibits.


Job Responsibilities

  • Monitors and troubleshoots various life support systems within the Zoo that include: Ozone generators, chlorination systems, diatomaceous earth filtration, sand filters, chemical treatment systems, and aeration systems.

  • Repairs pumps including mechanical seal replacements and bearing assemblies.  Makes repairs to fiberglass, PVC pipes and tubing.  Diagnoses problems and make repairs on grinder pumps.  Troubleshoots mechanical problems with compressors and makes necessary repairs.

  • Monitor and Test Water Quality - Has a comprehensive understanding of the methods and standards used to measure water quality including: pH levels, dissolved oxygen, turbidity, ozone levels, MPN coliform levels, water clarity, and the use of flocculent.  Maintains accurate records of life support systems.

  • Assist Zookeepers in water-related procedures – Assists and trains zookeepers with water-related procedures. Periodically helps zookeepers operating backwash life support equipment.  Trains and establishes safe working procedures for working with various chemicals and ozone.

  • Attends meetings and completes all required training.

  • Safely and properly operates: trucks, vans, golf carts, water testing instruments and basic power/hand tools.

  • Ability to lift, carry, push, and pull up to 50 lbs.

  • Other duties as assigned.

Minimum Qualifications

Required Education, License/Certification and Experience

  • High School Diploma or GED required

  • Technical diploma or formal training in a related field preferred

  • Valid Driver’s License required and must be maintained throughout employment 

  • Intermediate or Advanced level of proficiency using Microsoft Office Suite software programs such as Outlook, Word and Excel required

  • Two (2) years or more work experience with maintaining aquariums, pumps, water treatment, and general water chemistry required

  • Aquatic Animal Life Support Operators (AALSO) Life Support Operator Level 1 certification required OR must have the ability to obtain certification within one (1) year of employment

  • SCUBA certification required OR must have the ability to obtain certification within one (1) year of employment

  • Advanced knowledge of water chemistry, testing and treatment required

  • Intermediate knowledge of aquariums and related maintenance required

  • Seeking a strong candidate that is looking to develop and grow with the new Life Support Systems that are being installed at the Milwaukee County Zoo





PG18Z Org:9500 RV  

Special Instructions: This Original Examination is open to all candidates that are authorized to work in the United States. The selection process will be job related and will consist of one or more of the following: education and experience evaluation; written, oral, or performance tests, or other assessment methods.

Milwaukee County offers a comprehensive blend of benefits designed to make your life better both inside and outside of the workplace. Milwaukee County conducts criminal background checks and pre-employment drug testing.

Milwaukee County is an Equal Opportunity/E-verify employer committed to diversity and all qualified applicants will receive consideration for employment and will not be discriminated against based on age, race, color, religion, sex, sexual orientation, gender identity, national origin, disability genetic information or protected veteran status. We maintain a drug-free workplace and perform pre-employment substance abuse testing, background checks and pre-employment physicals subject to job requirements. If special accommodations are needed, please contact 414-278-3936.