Controller

Critical Systems•Rockville, MD

3d•$110,000 - $135,000•Hybrid

About The Position

Critical Systems is a growing mechanical engineering and HVAC solutions firm supporting complex commercial and mission-critical facilities. As we continue to scale, we are seeking an experienced Controller to lead our accounting function and partner closely with leadership, operations, and sales. This is a senior, hands-on role ideal for someone who enjoys building strong processes, leading teams, and supporting a project-based organization.

Requirements

Bachelor’s degree in Accounting or related field (Master’s preferred)
6+ years of progressive accounting experience, including leadership roles
Strong understanding of U.S. GAAP and technical accounting
ERP system experience and a track record of improving accounting processes and controls
Highly organized, detail-oriented, and able to operate independently
Strong communicator and collaborative business partner

Nice To Haves

CPA preferred
Experience in project-based, engineering, construction, or professional services environments a plus

Responsibilities

Oversee all accounting operations in compliance with U.S. GAAP
Manage general ledger, AP, AR, payroll, revenue recognition, and commissions
Lead the monthly close process, including reconciliations, cost allocations, and financial statement preparation
Review customer and vendor contracts and ensure proper revenue recognition
Implement and maintain strong internal controls and accounting policies
Lead annual audits and manage tax filings and external partners (banking, insurance, auditors)
Prepare monthly financial reporting packages for leadership and banking partners
Support annual budgeting, forecasting, and planning
Build, mentor, and develop a high-performing accounting team
Partner cross-functionally with engineering, sales, HR, and operations on financial initiatives