GreenGas
Join to apply for the
Office Manager
role at
GreenGas
At GreenGas, we’re helping lead the global energy transition by transforming waste into renewable energy and measurable decarbonization. We’re a fast‑growing team of expert innovators, engineers, and problem‑solvers committed to advancing global sustainability, fueling a circular economy, and creating a cleaner future for all. Join us and help shape the future of renewable energy.
Office Manager
Location: Houston, TX
Reports To: CEO
Type: Full‑time
Position Summary The Office Manager & Executive Assistant is responsible for the overall management, coordination, and effectiveness of the Houston office, a 15‑person onsite location. This role owns all aspects of the physical office environment and day‑to‑day operations while providing executive administrative support to senior leadership. The position requires a high degree of autonomy, judgment, and discretion. The individual in this role ensures the office operates efficiently, supports productivity, and reflects company standards, while anticipating needs and resolving issues independently.
Essential Duties And Responsibilities Office Operations & Facilities Management
Own and manage daily office operations to ensure a safe, functional, organized, and professional workplace
Serve as the primary point of contact for building management, landlords, vendors, and service providers
Coordinate facilities maintenance, repairs, cleaning, security access, and office equipment
Manage office supply inventory, ordering, and vendor relationships
Monitor and manage office‑related expenses, invoices, and budget tracking
Ensure compliance with workplace safety standards, company policies, and operational procedures
Coordinate office setup for new hires, including workspace readiness, equipment, and access
Manage office moves, space planning, and reconfigurations as required
Develop, document, and improve office processes and operational workflows
Executive Administrative Support
Provide administrative support to senior leadership, including calendar management, scheduling, and meeting coordination
Prepare meeting agendas, materials, presentations, and follow‑up documentation
Coordinate travel arrangements and itineraries
Maintain confidential records and handle sensitive information with discretion
Support executive‑led initiatives and special projects as assigned
Office Experience & Coordination
Act as the central point of coordination for office communications and logistics
Coordinate internal meetings, leadership sessions, client visits, and onsite events
Ensure consistent standards for office presentation, organization, and hospitality
Support internal communication related to office operations and scheduling
Partner with HR, IT, and leadership to support onboarding, engagement, and operational needs
Decision‑Making Authority
Independently manage day‑to‑day office operations and vendor coordination
Make operational decisions within established budget and policy guidelines
Escalate issues that materially impact cost, risk, or business continuity
Required Qualifications
Minimum of 5 years of experience in office management, executive assistance, or a combined role
Demonstrated ability to manage an office environment independently
Strong organizational, time management, and prioritization skills
Excellent written and verbal communication skills
High level of discretion and professionalism
Proficiency with Microsoft Office and scheduling tools
Preferred Qualifications
Experience supporting senior or executive‑level leaders
Experience managing office budgets and vendors
Experience in a professional services or corporate environment
Core Competencies
Operational ownership
Attention to detail
Judgment and discretion
Problem‑solving
Communication and coordination
Service orientation
Physical & Work Requirements
Ability to be onsite full‑time in the Houston office
Ability to lift and move office supplies and equipment as needed
Ability to sit, stand, and move throughout the office during the workday
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Office Manager
role at
GreenGas
At GreenGas, we’re helping lead the global energy transition by transforming waste into renewable energy and measurable decarbonization. We’re a fast‑growing team of expert innovators, engineers, and problem‑solvers committed to advancing global sustainability, fueling a circular economy, and creating a cleaner future for all. Join us and help shape the future of renewable energy.
Office Manager
Location: Houston, TX
Reports To: CEO
Type: Full‑time
Position Summary The Office Manager & Executive Assistant is responsible for the overall management, coordination, and effectiveness of the Houston office, a 15‑person onsite location. This role owns all aspects of the physical office environment and day‑to‑day operations while providing executive administrative support to senior leadership. The position requires a high degree of autonomy, judgment, and discretion. The individual in this role ensures the office operates efficiently, supports productivity, and reflects company standards, while anticipating needs and resolving issues independently.
Essential Duties And Responsibilities Office Operations & Facilities Management
Own and manage daily office operations to ensure a safe, functional, organized, and professional workplace
Serve as the primary point of contact for building management, landlords, vendors, and service providers
Coordinate facilities maintenance, repairs, cleaning, security access, and office equipment
Manage office supply inventory, ordering, and vendor relationships
Monitor and manage office‑related expenses, invoices, and budget tracking
Ensure compliance with workplace safety standards, company policies, and operational procedures
Coordinate office setup for new hires, including workspace readiness, equipment, and access
Manage office moves, space planning, and reconfigurations as required
Develop, document, and improve office processes and operational workflows
Executive Administrative Support
Provide administrative support to senior leadership, including calendar management, scheduling, and meeting coordination
Prepare meeting agendas, materials, presentations, and follow‑up documentation
Coordinate travel arrangements and itineraries
Maintain confidential records and handle sensitive information with discretion
Support executive‑led initiatives and special projects as assigned
Office Experience & Coordination
Act as the central point of coordination for office communications and logistics
Coordinate internal meetings, leadership sessions, client visits, and onsite events
Ensure consistent standards for office presentation, organization, and hospitality
Support internal communication related to office operations and scheduling
Partner with HR, IT, and leadership to support onboarding, engagement, and operational needs
Decision‑Making Authority
Independently manage day‑to‑day office operations and vendor coordination
Make operational decisions within established budget and policy guidelines
Escalate issues that materially impact cost, risk, or business continuity
Required Qualifications
Minimum of 5 years of experience in office management, executive assistance, or a combined role
Demonstrated ability to manage an office environment independently
Strong organizational, time management, and prioritization skills
Excellent written and verbal communication skills
High level of discretion and professionalism
Proficiency with Microsoft Office and scheduling tools
Preferred Qualifications
Experience supporting senior or executive‑level leaders
Experience managing office budgets and vendors
Experience in a professional services or corporate environment
Core Competencies
Operational ownership
Attention to detail
Judgment and discretion
Problem‑solving
Communication and coordination
Service orientation
Physical & Work Requirements
Ability to be onsite full‑time in the Houston office
Ability to lift and move office supplies and equipment as needed
Ability to sit, stand, and move throughout the office during the workday
#J-18808-Ljbffr