Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Administrative Assistant

$20.2 - $23 per hour

Mosaic

Make an Impact Behind the Scenes at Mosaic!

Are you an organized multi-tasker who loves bringing order to a busy day? Do you want your work to actually mean something? At Mosaic, we relentlessly pursue opportunities to empower individuals with diverse needs, helping them live meaningful, connected lives.

We are looking for a high-energy Administrative Assistant to serve as the heart of our Denver office. In this flexible hybrid role, you'll be the welcoming face of our team, the master of our daily logistics, and a key partner in supporting our direct care workforce.

Why You'll Love This Role

  • Flexible Hybrid Perks: Balance your time between our Denver office for key hands-on duties and your home workspace. Once your daily office responsibilities are wrapped up, you have the flexibility to work remotely!

  • Diverse, Dynamic Days: No sitting at a desk doing the exact same task for eight hours straight-your day will range from fleet coordination and client documentation to greeting guests and supporting new hires.

  • Mission-Driven Purpose: Your organization keeps our entire team running smoothly so we can focus on empowering the people we serve.

What You'll Be Doing

  • Welcome & Office Anchor: Greet visitors, keep supply closets stocked, handle facility work orders, handle mail/deliveries, and keep our meeting spaces ready for action.

  • Onboarding & HR Support: Guide potential direct care workers through the onboarding pipeline, conduct reference checks, and process background checks.

  • Fleet & Logistics Management: Keep our vehicle fleet rolling safely by tracking monthly inspections, arranging oil changes/repairs, and managing registration renewals.

  • Financial & Data Administration: Process check deposits, submit agency receipts, maintain key inventory logs, manage team calendars, and secure important client documents in our digital systems.

SCHEDULE: Hybrid - Monday-Friday 8:00 a.m. to 5:00 p.m. with some flexibility

SALARY: $20.20 - $23.00

CLOSE DATE: Wednesday, October 7, 2026

What You Bring to the Team

  • Experience & Education: Associate degree (or equivalent training) and 3+ years in an administrative support role.

  • Tech-Savvy & Organized: Experience with standard office software, digital filing, and keeping track of moving parts.

  • People-First Mindset: Strong written/verbal communication skills, great problem-solving ability, and complete respect for confidentiality.

  • Availability: Ability to work a 40-hour Monday-Friday schedule, visit the Denver office 4-5 times a week for core tasks, and attend Thursday morning team meetings.

Vacancy posted 3 days ago
Similar jobs that could be interesting for youBased on the Administrative Assistant in Thornton, CO vacancy
  •  ...organized individual with proficiency in both English and Spanish? We are seeking a motivated Bilingual Office Receptionist/Administrative Assistant to join our team on a temporary - permanent basis. This position involves a variety of office tasks, including some... 
    Suggested
    Permanent employment
    Temporary work
    Work at office

    KG Facility Solutions

    Westminster, CO
    3 days ago
  •  ...Administrative Assistant Global Village Academy Collaborative (GVAC) is seeking a highly organized, detail-oriented Administrative Assistant to support the Executive Director and the broader GVAC team. This position plays an important role in coordinating board activities... 
    Suggested
    Work at office
    Remote work
    Relocation

    Global Village Academy Collaborative

    Thornton, CO
    5 days ago
  •  ...Competitive Compensation Paid Time Off Career Growth Opportunities Job Summary We are seeking a motivated and outgoing Administrative Assistant to join our team. In this role, you will provide support to our office employees, ensuring they have all the information... 
    Suggested
    Work at office

    Phoenix Financial Group

    Westminster, CO
    3 days ago
  •  ...Description: ATN Health is currently assisting a local client, recruiting for an Administrative Assistant job in Denver Metropolitan Area. The Administrative Assistant job is a temp to hire opportunity. For instant consideration for the Administrative Assistant... 
    Suggested
    Temporary work
    Work at office
    Local area

    ATN Health

    Federal Heights, CO
    4 days ago
  • $25.25 - $30.78 per hour

     ...responsible for accurate and timely physician credentialing. May direct and lead the work of others. May manage and coordinate administrative programs and office activities. Create spreadsheets, manage databases and prepare presentations, reports and documents as... 
    Suggested
    Temporary work
    Work at office
    Local area
    Flexible hours

    Acadia Healthcare- Lakeland Behavioral

    Westminster, CO
    1 day ago
  • $24.04 - $28 per hour

     ...differential pay when applicable Bilingual stipend pay 24/7 Employee Assistance Program to support mental health and a balanced lifestyle...  ...and Public Student Loan Forgiveness. About the role: The Administrative Assistant/Behavioral Health Receptionist is an integral member... 
    Work at office
    Monday to Friday
    Shift work

    Community Reach Center

    Westminster, CO
    4 days ago
  • $19 - $21 per hour

     ...back, and treating every individual with empathy and respect. POSITION SUMMARY: As a key member of the Northpoint team, the Administrative Assistant is responsible for handling patient-facing duties as well as general office management tasks. This person will ensure the... 
    Full time
    Temporary work
    Seasonal work
    Work at office
    Shift work

    Northpoint Recovery

    Westminster, CO
    1 day ago
  • $20 - $21 per hour

     ...excellence, ELS is the ideal organization in which to develop a long and successful career! ELS is hiring for the position of Administrative Assistant in Federal Heights, Colorado. What you’ll do: The Administrative Assistant helps to maintain property operations and to... 
    Hourly pay
    Work at office
    Flexible hours

    Equity LifeStyle Properties

    Federal Heights, CO
    21 hours ago
  •  .... Our mission is to add value to every family and organization we serve. Job Overview We are currently seeking an Administrative Assistant who deeply cares for others and possesses the intuitive skills to connect with people and provide exceptional service. As... 
    Work at office

    True Wealth Financial

    Westminster, CO
    a month ago
  • $20.96 - $32.49 per hour

    Job Summary and Responsibilities As our Perioperative Scheduler, you will coordinate surgical and anesthesia procedures in alignment with established guidelines, ensuring efficient use of available resources. You will obtain and update patient and procedural information...
    Work at office

    CommonSpirit Health

    Westminster, CO
    3 days ago
  • $136k - $167k

     ...directly related experience. Bachelors degree in Business Administration, Engineering or related fields from an accredited college or university...  ...materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final... 
    Permanent employment
    Full time
    Contract work
    Work experience placement
    Local area

    CesiumAstro

    Westminster, CO
    2 days ago
  • Senior Scheduler – Data Centre Overview We are seeking a highly skilled and experienced Senior Scheduler to join our team and play a pivotal role in the successful delivery of data centre projects. This is an exciting opportunity for a professional with a strong background...

    Daksta

    Westminster, CO
    1 day ago
  • United Surgical Partners - 14190 North Orchard Parkway - Responsibilities: Schedules patient procedures to ensure efficient processing; Coordinates with anesthesia groups for scheduling; Verifies patient information and paperwork; Communicates schedule changes to staff...

    United Surgical Partners

    Westminster, CO
    2 days ago
  • $22 - $24 per hour

     ...case volume and maintain accurate informationComfortable communicating with facility and regional leadershipFlexible and willing to assist outside of core scheduling responsibilitiesComfortable occasionally supporting the front deskIdeal CandidateThe strongest candidate... 
    Work at office
    Local area
    Monday to Friday

    Addison Group

    Westminster, CO
    3 days ago
  • $65k - $75k

     ...reports to the Senior Manager of Project Controls. The P/S will assist Project Managers (PM) as requested with the planning,...  ...Personal and Professional Growth: Technical, Managerial, and Administrative Career Paths Onboarding and Mentoring, Internal Training and Cross... 
    Temporary work
    Casual work
    Work at office
    Local area
    Immediate start
    Work from home
    Flexible hours

    Matrix Technologies, Inc.

    Westminster, CO
    4 days ago
  •  ...As an Administrative Assistant, you will provide administrative and clerical support to managers, team members, and client families, including answering phone calls, scheduling, creating and proofing correspondence, and data entry. What You Will Do: Compassion & Empathy... 
    Work experience placement
    Work at office

    Foundation Partners LLC

    Westminster, CO
    2 days ago
  •  ...QUALIFICATIONS Bachelor's degree in project management, business administration, operations management, finance, or a related field with 5–8...  ...materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final... 
    Permanent employment
    Full time
    Contract work
    Work experience placement
    Work at office
    Local area

    CesiumAstro

    Westminster, CO
    2 days ago
  • CommonSpirit Health - 14300 Orchard Parkway - Responsibilities: Coordinate surgical and anesthesia schedules; Print and distribute schedules; Update patient and procedural information; Liaise with patients, physicians, and surgical team; Manage daily changes to schedule...

    CommonSpirit Health

    Westminster, CO
    4 days ago
  • $16 - $30 per hour

     ...clerks come from all different backgrounds including data entry, telemarketing, customer service, sales, clerical, secretary, administrative assistant, warehouse, inventory, receptionist, call center, part-time, retail fields & more. Thank you Thank you for your interest.... 
    Remote job
    Hourly pay
    Part time
    Work at office
    Work from home
    Flexible hours

    Jobconversion, LLC

    Arvada, CO
    5 days ago
  •  ...perspectives to help deliver cutting-edge solutions to global clients across both public and private sectors. Job Title: Administrative Assistant III Location: 100% Remote (Denver CO) Position Summary: Responsible for reviewing substitute tax form... 
    Temporary work
    Remote work

    COGENT Infotech

    Denver, CO
    2 days ago
  • $60k - $80k

    O’Meara Auto Group is hiring an experienced Office Manager to help lead our GMC and Volkswagen accounting office. This is a key seat — you’ll be the right hand to a sharp, no-nonsense Controller, and together you’ll run a tight, accurate, well-organized office that...
    Full time
    Work at office

    O'meara Auto Group

    Westminster, CO
    more than 2 months ago
  • $35 - $39 per hour

     ...Within our Corporate Technical Services team located in Denver – Leprino is seeking an Administrative Assistant II to support our Global Engineering teams. This role keeps engineering work organized and moving by coordinating schedules, managing project documentation... 
    Hourly pay
    Full time
    Local area

    Leprino

    Denver, CO
    2 days ago
  • $33.3k - $46.4k

     ...Administrative Assistant / Data Entry Clerk (Remote) Position is to manage day‑to‑day sales administrative accountabilities and dedicated areas of expertise. Technical Skills Provide dedicated administrative support in a professional, confidential, and organized... 
    Remote work

    Jobcertify

    Denver, CO
    4 days ago
  •  ...Smashburger, great hospitality starts behind the scenes. As an Office Assistant , you'll help keep our Support Center running smoothly by managing day-to-day office operations while providing administrative support to members of our leadership team, including the CEO. If... 
    Work at office
    Local area
    Immediate start
    Shift work

    Harri

    Denver, CO
    4 days ago
  • $28.85 - $36.78 per hour

     ...Welcome! Welcome! Provides general administrative and clerical support to the location following standardized processes and procedures...  .... Key Responsibilities: Answers telephone and assists call or routes call to appropriate person. Sorts and opens... 
    Temporary work
    Work at office

    Service Experts

    Westminster, CO
    4 days ago
  • $68.6k - $85.6k

     ...Brief Overview Reporting to the Chief Operating Officer of Hunt Development Group, the Office Manager Executive Assistant performs all administrative support in a well-organized and timely manner for designated executives. The assistant works on various tasks related... 
    Full time
    Work experience placement
    Work at office
    Local area

    Hunt

    Denver, CO
    more than 2 months ago
  • $750 per week

     ...and customer experiences. Role Overview: We are welcoming participants from all backgrounds, including anyone looking for administrative assistant roles, to take part in upcoming market research studies. These may involve online discussions, product testing, or feedback... 
    Part time
    Casual work
    Remote work
    Flexible hours

    AFG

    Northglenn, CO
    1 day ago
  • Hybrid Chief of Staff / Executive Assistant - Vice President (Multi Site, Defense/Aerospace) Overview We are looking for a proactive...  ...reviews, and resolve conflicts before they arise. Travel & Expense Administration - Coordinate domestic and international travel; process... 
    Work at office
    Worldwide

    PlanIT Group, LLC

    Denver, CO
    3 days ago
  •  ...Senior Planet Center Administrative Assistant Provides administrative and operational support for the Senior Planet center in Denver, CO, assisting the Center Manager with the day-to-day operations of the center to ensure a welcoming, organized, and efficient environment... 
    Work at office

    Mindlance

    Denver, CO
    5 days ago
  • YOUR ROLE As the full-time Selling Team Leader, you are the Store Team Leader's "go-to" in developing and implementing the business strategy and leading the daily operations of the store. Your passion lies in training and coaching your team into high-performing sellers...
    Full time
    Temporary work
    Part time
    Casual work
    Seasonal work
    Local area
    Flexible hours

    American Eagle Outfitters

    Thornton, CO
    3 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Administrative Assistant. Be the first to apply!