Bookkeeper & Office Manager

Comfort Systems of Montana | Bozeman, MT | Full Time, Salaried, In Office

Comfort Systems of Montana is looking for an Office Manager and Full Charge Bookkeeper who wants to be the heartbeat of our office. This is the seat that keeps the money right, the people supported, and the building running at the same standard our team holds in the field.

You will own the books from top to bottom: accounts payable, accounts receivable, reconciliations, payroll, and the month end close, with our CPA in your corner. You will partner with our Service Coordinator and Project Managers on job costing so every job tells the truth about what it made. Beyond the numbers, you will run onboarding and HR administration, coordinate our IT and technology, and keep the office organized, stocked, and running smoothly every single day.

CSMT is not a typical HVAC company. We operate like a championship team. We recruit exceptional people, we train relentlessly, and we hold a standard that most companies in this industry will never touch. Doing what is required is not enough here. The Unrequired is our operating system, and it is the reason we are building a national brand that will transform what people expect from HVAC.

That standard does not stop at the truck door. It starts in the office.

This is a full time, in office seat in Bozeman. We need someone who walks in every morning with energy, lifts the people around them, and takes real pride in a clean set of books and an office that runs like a machine. If you are organized, sharp, upbeat, and ready to own your seat, we want to meet you.

At CSMT, we don’t just install HVAC systems, we set the standard for quality, expertise, and customer satisfaction. As Bozeman’s most reliable HVAC company, we have been serving homeowners, businesses, and contractors since 1999 with a commitment to excellence that goes beyond just getting the job done. We believe in building lasting relationships, not just with our customers, but with our employees and industry partners.

Our team is made up of high performers who take pride in their craft, support each other, and never settle for average. We invest in ongoing training, the best tools and technology, and a work culture that values accountability, growth, and teamwork. At CSMT, we offer competitive wages, career advancement opportunities, and a company culture that feels like family. Whether it’s a company BBQ, team outings, or simply celebrating wins together, we believe in creating an environment where people love to work.

If you’re looking for a company that values excellence, integrity, and the pursuit of being the best, CSMT is the place for you.

• Own accounts payable: enter and code vendor bills, manage payment schedules, and keep vendor relationships in good standing.
• Own accounts receivable: invoice accurately and on time, track aging, and drive collections so cash keeps moving.
• Reconcile all bank, credit card, and loan accounts every month with zero unexplained variances.
• Own the month end close in Quick Books Online on a consistent, on time schedule, with our CPA providing oversight and support.
• Prepare monthly financial reports for ownership, including the P and L, balance sheet, AR aging, and AP aging.
• Maintain a clean, accurate general ledger and chart of accounts.
• Keep Service Titan and Quick Books Online in sync so invoices, payments, and job data match across both systems.
• Support year end, tax preparation, and any financial reviews with organized, complete documentation.

• Process bi-weekly payroll accurately and on time through Service Titan and Quick Books Online.
• Review timesheets, commissions, bonuses,…