Administrative Assistant

The Mannik & Smith Group, Inc.

The Mannik & Smith Group, Inc.

USD 19-22 / hour
Posted on Mar 11, 2026
At Horrocks, we believe the best work comes from companies with values, that our people are our greatest resource, and that we have a responsibility to the communities where we live and work. As an Administrative Assistant, you will work closely with our Engineers and professional staff. The role will handle all administrative and clerical tasks including managing calendars, sorting mail, and providing general assistance. The admin assistant may also be responsible for event planning and meeting setup and implementation.
Department
Corporate/Administrative
Employment Type
Full Time
Location
Denver, CO
Workplace type
Onsite
Compensation
$19.00 - $22.00 / hour

What are the core responsibilities for the role?

  • Manage calendars and schedule meetings/conference calls while demonstrating problem-solving abilities to adjust or prioritize schedules based on last-minute changes
  • Proactively develop relationships with key internal employees, gaining recognition as a team resource
  • Use appropriate judgment and knowledge when sharing sensitive information
  • Perform clerical duties including but not limited to photocopying, faxing, mailing, scanning, and filing
  • Interface with all levels of the organization and with external customers in a professional and effective manner
  • Event planning for an office of 40+ employees (Christmas parties, lunches, etc.)
  • Purchase supplies for the office including breakroom supplies
  • Maintain organization and cleanliness of shared office spaces including conference rooms and break areas
  • Performs other administrative support and special projects as assigned

Qualifications, Skills, and Competencies:

  • A high school diploma or equivalent is required. Some college preferred
  • Minimum of two years of related experience
  • MS Office skills
  • Excellent professional verbal and written communication skills
  • Attention to detail, proactive follow-up, excellent organizational skills, and discretion with confidential information
  • Able to manage workload in a fast-paced, high-intensity work environment
  • Strong interpersonal, time-management, and problem-solving skills
  • Ability to change the focus of work seamlessly, without loss of efficiency, and adapt to unexpected requests
  • Strong sense of urgency, with outstanding prioritization skills and professionalism
  • Focuses on objectives and deliverables, execution of tasks, and fast implementation
  • Flexible, adaptable, and demonstrates openness to change
  • Strives to learn and develop new skill sets
  • Review documents for clerical errors and modify documents
  • Valid driver's license

Why would a candidate want this job?

At Horrocks, you can expect a competitive base salary and award-winning benefits. Including, but not limited to:
  • Medical, dental, vision, life, and disability insurance
  • Generous paid time off
  • 401(k): 50% match of contribution up to 6%
  • Professional development opportunities including in-house training
  • Paid professional organization membership and professional licensure
For more information, visit our website at www.horrocks.com

Equal Opportunity Employer including disability and protected veteran status

About Horrocks

Founded over 55 years ago, Horrocks has a long-standing history of delivering exceptional infrastructure solutions. At the heart of our company is a commitment to providing essential resources for communities and improving quality of life through innovative and forward-thinking engineering practices. Our teams of dedicated professionals deliver high-quality results on every project and are driven by a culture of service. With our slogan "What we do matters," we strive to make a meaningful difference in the world through our work. Our approach is holistic, taking into consideration all aspects of a project to ensure it meets the needs of the present while preparing for the future. We invest in our people and culture, recognizing that our success is dependent on the talents and dedication of our team. At our firm, we don't just build infrastructure — we build better communities.

Our Hiring Process

Stage 1:

Applied

Stage 2:

Initial Screening

Stage 3:

1st Interview

Stage 4:

Offer

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