Administrative Assistant

Sincere Builders; Houston (TX); On-site; USD 40,000 - 56,000; Full time

Job summary

Sincere Builders is seeking a highly organized Administrative Assistant to manage day-to-day office operations in Houston. This front-line role is the first point of contact for visitors and calls, requiring a professional, welcoming presence and strong follow-through.

You will handle reception, supplies, vendor coordination, and support project and leadership teams so colleagues can stay focused on building projects. Proficiency in Microsoft Office and strong communication are essential.

Qualifications

• Proven experience as an Administrative Assistant or similar role.
• Proficiency in Microsoft Office (Outlook, Excel, Word).
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Responsibilities

• Serve as the face of the office: greet visitors, answer and route calls, manage mail and deliveries.
• Keep the office stocked with supplies and track inventory.
• Coordinate office services and vendors (cleaning, maintenance, equipment).
• Manage ordering of office furniture and equipment as needed.
• Maintain clean, organized front office and meeting spaces.
• Support scheduling, document preparation, data entry, receipts and expenses.
• Assist with onboarding logistics for new hires (desk, supplies, workspace).
• Prepare basic documents, trackers, and correspondence using Microsoft Office.
• Maintain confidentiality and professionalism at all times.
• Assist with setup/breakdown at off-site events (expos, conferences).
• Assist with booking travel and lodging for staff as needed.

Skills

Organizational skills

Time management

Professional communication

Reliability

Punctuality

Attention to detail

Tools

Microsoft Office

Asana

Job description

We are a growing construction company seeking a highly organized, dependable Administrative Assistant to run the day-to-day operations of our office. This is a front‑line role and the first point of contact for everyone who walks through our door or calls in—so a professional, welcoming presence and strong follow‑through are essential. The Administrative Assistant keeps the office running smoothly: managing reception, keeping supplies stocked, coordinating vendors and office services, and supporting our project and leadership teams with administrative tasks so they can stay focused on building projects.

Key Responsibilities

• Serve as the face of the office: greet visitors, answer and route incoming calls, and manage incoming and outgoing mail and deliveries.
• Keep the office fully stocked—order and maintain office, kitchen, and breakroom supplies, and track inventory.
• Coordinate office services and vendors, including cleaning staff, maintenance, and equipment/service providers.
• Handle ordering and coordination of office furniture and equipment as needed.
• Keep the front office, conference rooms, and common areas clean, organized, and meeting‑ready.
• Support the team with administrative tasks such as scheduling meetings, preparing and organizing documents, filing, data entry, and organizing receipts and expenses.
• Assist with onboarding logistics for new hires, including desk, supplies, and workspace setup.
• Prepare basic documents, trackers, and correspondence using Microsoft Office (Outlook, Excel, Word).
• Maintain confidentiality and professionalism at all times.
• Assist with setup and breakdown at off‑site events such as expos and conferences.
• Assist with booking travel and lodging as needed for company staff.

Required Qualifications

• Proven experience as an Administrative Assistant, Office Coordinator, Receptionist, or in a similar administrative role.
• Proficiency in Microsoft Office (Outlook, Excel, Word).
• Exceptional organizational and time‑management skills, with the ability to juggle multiple requests at once.
• Professional, friendly phone and in‑person communication skills.
• Reliable, punctual, and comfortable being the consistent in‑office presence the team depends on.
• Strong attention to detail and follow‑through.

Preferred Qualifications

• Experience in construction, engineering, real estate development, or a similar project‑based industry.
• Experience coordinating vendors, supplies, or office services.
• Familiarity with task‑tracking tools such as Asana.

What Success Looks Like in This Role

• The office runs smoothly and looks professional—supplies are always stocked and nothing falls through the cracks.
• Visitors and callers are greeted and handled promptly and professionally.
• Vendors and office services are managed efficiently without leadership involvement.
• The team can count on a well‑organized, well‑supplied, and welcoming office every day.