5 Callahan Software Developer Jobs Hiring Near You

Chemical Service Technician for Data Centers—Reno, Nevada

Role: 

Oversee the chemical cleaning, passivation, and flushing of primary cooling loops during the construction phase of large-scale data centers. Perform on-site technical lead role, coordinating with mechanical contractors to ensure water chemistry meets stringent, time-sensitive specifications and managing the logistics and documentation for each project in a Google document workflow (Google Workspace).

In-Field and In-plant Passivation Operations:

●  In-plant passivation of stainless steel

●  System Flushing & Cleaning:  Lead the chemical cleaning and "pre-operational" flushing of closed-loop chilled water systems. 

●  Water Analysis:  Perform on-site water chemistry testing (e.g., pH, conductivity, iron levels, azole concentrations) to verify system readiness. 

●  Mechanical Contractor Assistance:  Work side-by-side  with mechanical contractors to manage roadblocks, pump setups, dose chemistry, and filtration. 

●  Equipment Maintenance:  Ensure all chemical feed equipment  and monitoring controllers are properly installed and calibrated. 

●  Service Existing Datacenters:  Perform service by checking residuals, swapping out filtration, and dosing any necessary chemicals. Write a service report at the end of each service. 

Project Management & Logistics:

●  Inventory & Ordering:  Forecast chemical volumes required  for system volumes and place timely orders to avoid site delays. 

●  Join weekly project meetings 

●  Logistics Oversight:  Track shipments and coordinate  the delivery of bulk chemicals or IBC totes to active construction sites. 

●  Documentation:  Maintain precise "Daily Field Reports"  and final documentation for the client (Owner's Rep) and/or mechanical contractors. 

●  Schedule Management:  Align chemical treatment phases with the mechanical construction schedule to ensure on-time commissioning and product delivery. 

Experience Level: 

2-5 Years in industrial water treatment,  HVAC Commissioning  , and/or mechanical contracting 

Must  Have Requirements: 

●  Two  of the following: 

○  Water Chemistry Basics:  Proficiency in performing and documenting field water analysis (e.g., glycol %, pH, conductivity, iron, phosphate, and inhibitor levels) 

○  Project Coordination:  Experience or ability to manage project timelines, including the logistics of ordering chemicals and coordinating deliveries with freight carriers and Garratt-Callahan Orderdesk / Commodity Manager 

○  Direct experience:  Chemical cleaning of closed-loop  HVAC systems 

○  Industrial water Experience:  Minimum 2–3 years of  experience in industrial water treatment 

○  Mechanical Contractor Experience:  Commissioning or chemical cleaning of closed-loop HVAC systems 

●  Communication Skills:  Able to professionally interface  with Clients, Mechanical Contractors, and General Contractors to drive the flushing schedule. 

Nice To Have  Requirements: 

●  Technical Literacy:  Ability to read and interpret  P&IDs (Piping and Instrumentation Diagrams) and mechanical blueprints to identify isolation valves, bypasses, and system volumes. 

●  Bluebeam experience 

●  Math Proficiency:  Strong ability to perform volume  calculations and chemical dosage rates (e.g., calculating the amount of cleaner needed for a 50,000-gallon loop).  Basic ratios.

●  Data Center Experience:  Previous experience working  on Hyperscale or Enterprise data center build-outs (e.g., AWS, Meta, Google, or Microsoft sites). 

●  Safety Certifications:  Current OSHA 10 or OSHA 30  Construction Safety certification. 

●  Equipment Expertise:  Experience installing and programming  water treatment controllers (e.g., Walchem, Advantage, Google Workspace, WebMaster). 

●  Industry Credentials:  Association of Water Technologies  (AWT) certifications or a Certified Water Technologist (CWT) designation. 

●  Logistics Experience:  Experience using inventory management  software or specialized ERP systems to track orders and shipments. 

●  HVAC Cleaning Equipment Experience:  Familiarity with  high-flow filtration skids and temporary bypass pumping setups. 

About Garratt-Callahan:

Our 2025 Sales were the Largest Growth in Decades. 2026 YTD Sales are even Better.

Garratt-Callahan is a US based private 120+ year old, nationwide water treatment chemical company. Garratt-Callahan www.garrattcallahan.com treats industrial boilers and cooling towers to keep them energy efficient and environmentally friendly with one of the most advanced product lines in the industry. We are registered to ISO 9001:2015 and sell an industry leading line of “green" solutions, G-C GreenTech. We are headquartered in Burlingame, California.

G-C is family owned, profitable, and expanding. We have five chemical plants in the USA, salespeople in every state, and operations in Asia, the Pacific, and the Caribbean.

Benefits:

1. We offer a competitive benefit package which includes medical, dental, vision, AD&D, LT, and 401k.
2. First year compensation is $85,000 to $100,000, depending on experience.
3. Advanced training, and a clear career path.
4. Family friendly, flexible hours.
5. A huge benefit of working for Garratt-Callahan is our stability and low turnover.
6. No Layoffs in our 120+ year history.
7. G-C is a profitable company. The last year that G-C did not turn a profit was during World War 2.
8. A monthly car allowance.

To Apply, please log on to:

https://workforcenow.adp.com/mascsr/default/mdf/recruitment/recruitment.html?cid=16ed56fa-3af7-47fc-878a-c4d47df49e2f&ccId=19000101_000001&jobId=571444&source=CC2&lang=en_US

Thank you for considering Garratt-Callahan Company. Garratt-Callahan is an EEO/AAE employer. Minorities, women, veterans and individuals with disabilities are encouraged to apply.

NOTE: Garratt-Callahan does not sponsor work visas. No recruiters please.

If you have a disability and need assistance during the application and selection process as a result, please contact the Garratt-Callahan Human Resources department at 650.697.5811. Arrangements can be made to provide an accommodation to assist you in applying for an open position using our on-line system, completing any other related paperwork, interviewing, or any other portion of the employment process. This phone number is only for disability assistance.

When requesting accommodation, please provide your name, phone number, email address, or any other means of contacting you. Provide a brief description of the nature of the requested accommodation. A member of the Human Resources team will then contact you to discuss your request. A request for accommodation will not affect your opportunities for employment with Garratt-Callahan.

Garratt-Callahan values differing experiences, backgrounds and perspectives among our employees, and see them as a competitive advantage. Garratt-Callahan is committed to the fair and equal treatment of all associates and applicants.

Garratt-Callahan is an equal opportunity employer that evaluates qualified applicants without regard to race, color, national origin, religion, sex, age, marital status, disability, veteran status, sexual orientation, gender identity, or any other characteristic protected by law.

1. The “Equal Employment Opportunity is the Law” poster is available at:
   http://www.dol.gov/ofccp/regs/compliance/posters/pdf/eeopost.pdf
2. Garratt-Callahan Company’s reaffirmation of Equal Employment/Affirmative Action Statement
   http://www.g-c.com/documents/human_resources/EEO_Letter_Jeff_Garratt.pdf

Key Words: 

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