Service Technician at Data Centers

Water Treatment Sales Support Service Technician—Reno, Nevada

Garratt-Callahan is family friendly, profitable, stable, and fiercely private. No layoffs in 120 years. No ownership changes in 120 years. Haven't changed our commission plan in 30 years. 80 straight years of profitability. We have operations in every state in the USA.

Technical Sales Support Service Technicians are responsible for maintaining the existing customer base in Reno and the Northern Nevada region, and for performing water treatment tests at the existing customers, primarily data centers. With the freedom of working from your home, you can work and train in a territory alongside veteran Territory Managers. The best place to live is in or very near Reno.

The career track for a Technical Sales Support/Service Technician is to train to become a Territory Manager. Territory Managers are eligible for unlimited commission and a year-end bonus.

As a Technical Sales Support/Service Technician, you will receive an industry competitive salary, expenses, benefits, and a $675 per month car allowance. In addition, ample technical support is provided along with continuous training. Paperwork is kept to a minimum. Compensation is based upon experience and the ability to succeed. $85,000 to $100,000 first year base for a qualified candidate.

We hire with a focus that favors the committed employee both in terms of overall compensation and growth opportunities. We have designed our compensation package accordingly. Benefits include a corporate 401k, health, dental, vision, and life insurance.

Garratt-Callahan is a US based private 120-year-old, nationwide water treatment chemical company. Garratt-Callahan 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, technical salespeople in every state, and the Caribbean.

Benefits:

• We offer a competitive benefit package which includes medical, dental, vision, AD&D, LT, and 401k. A monthly car allowance and travel expenses are provided.
• First year compensation is $85,000 to $100,000 depending on experience.
• Advanced training, and a clear career path.
• Family friendly, flexible hours.
• A huge benefit of working for Garratt-Callahan is our stability and low turnover.
• No Layoffs in our 120-year history
• G-C is a profitable company. The last year that G-C did not turn a profit was during World War 2.
• 2025 was a record sales year, and 2026 sales are trending to be at record levels.

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).

Technical & Field Operations

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 filtrations, 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 plus 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.

To Apply, please log on to

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.

Requirements: You will be a successful applicant if you have a technical degree such as Chemistry, Chemical Engineering, Biology, Mechanical Engineering, Paper Science, or Water Resources. You must have a 4-year science degree to qualify for this position. You must be a capable Chemist. One-year technical sales, or an internship related to water treatment chemicals is preferred, but we are willing to train and mentor. Outside industrial sales experience is a plus. You must live in the greater Reno area and be familiar with the industrial marketplace of Northern Nevada.

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 View phone number on click.appcast.io. Arrangements can be made to provide an accommodation in order 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.

When requesting an accommodation, please provide your name, phone, 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