Office Manager/Bookkeeper/Lead Admin

Strong Tower Partners
Houston, TX

Lead Bookkeeper/ Office Manager

Houston, TX | Full-Time | Environmental Services


Our client is a mission-driven environmental services company focused on improving air quality. They are a small, growing team where every contribution matters, ideas spark change, and your work has a real impact.


They are seeking a proactive, highly organized Bookkeeper / Office Manager to manage financials, office operations, and executive support. This is a hands-on role ideal for someone who thrives in a fast-paced, collaborative environment, enjoys variety, and takes ownership of responsibilities.


Key Responsibilities

Financial Management & Bookkeeping

  • Manage client invoicing, accounts payable, accounts receivable, and general bookkeeping using QuickBooks Pro
  • Maintain accurate financial records and perform bank and credit card reconciliations
  • Track expenses and assist with monthly financial reporting
  • Manage weekly time tracking and project billing in BigTime
  • Assist with payroll setup and documentation
  • Coordinate with external accountants for tax preparation and reporting

Office Operations & Leadership

  • Provide direct administrative support to executive leadership
  • Supervise one Administrative Assistant and guide workflow
  • Oversee daily office operations, including vendor management, office supplies, and billing
  • Ensure office systems and processes run smoothly

Administrative & Team Support

  • Create professional reports, presentations, and documents using Microsoft Office and Adobe Acrobat Pro
  • Maintain organized digital and physical filing systems
  • Assist with HR administration, onboarding, and office safety programs
  • Support company LinkedIn and social media presence for recruiting and marketing
  • Plan and coordinate team meetings, events, and celebrations

Required Skills & Experience

  • 5+ years of bookkeeping, office management, or senior administrative experience
  • Experience supporting executives or senior leadership
  • Strong understanding of accounting principles and financial recordkeeping
  • Ability to manage multiple priorities in a fast-paced environment
  • Hands-on experience with: QuickBooks Pro, BigTime, Adobe Acrobat Pro, Microsoft Office Suite (Word, Excel, Outlook, PowerPoint, Teams)
  • Exceptional organization, accuracy, and attention to detail

Why You’ll Love This Role

  • Meaningful work supporting environmental impact initiatives
  • Small, collaborative, and mission-driven team
  • Opportunities to expand your role as the company grows
  • Competitive Houston market-based salary, PTO, and benefits
  • Positive, fun culture with team events and celebrations