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Office Manager - Careers at Robert Half

Robert Half

Office Manager - Careers at Robert Half

full-timePosted: Feb 4, 2026

Job Description

Office Manager Opportunity in O'Fallon, IL - Join Robert Half Careers

Are you an organized, detail-oriented professional with a passion for office administration and event coordination? Robert Half is excited to partner with a small, dynamic organization in O'Fallon, Illinois, to find a talented Office Manager / Administrative Assistant for a direct hire, full-time position. This onsite role offers a competitive salary up to $50,000 annually, with fully covered benefits at no cost to you. If you're seeking a rewarding career where you can manage daily operations, support national events, and contribute to a close-knit team, this is your chance to shine.

About the Role

As the Office Manager, you'll be the backbone of this organization's operations, ensuring everything runs smoothly from the office to national events. Located in the vibrant community of O'Fallon, Illinois—just minutes from St. Louis—this position involves hands-on administrative support, financial tracking, and event logistics. You'll work closely with leadership to prepare board presentations, manage invoices, and handle everything from phone calls to golf tournament sponsorships. This is more than a job; it's an opportunity to make a tangible impact in a supportive environment while enjoying comprehensive benefits and job stability through direct hire.

Robert Half, a leader in professional staffing, is connecting top talent like you with exceptional opportunities. With our expertise in HR and recruitment, we ensure a seamless match between candidates and employers. O'Fallon, IL, offers a perfect blend of Midwestern charm, affordable living, and proximity to major hubs, making it an ideal location for career growth.

Key Responsibilities

Your day-to-day will be varied and engaging, blending administrative expertise with creative event support:

  • Supervise daily office operations, from answering phones and greeting visitors to managing correspondence and maintaining filing systems.
  • Coordinate national events, including creating registration lists, name tags, golf tournament signs, hole sponsorships, and sending invitations.
  • Update Excel spreadsheets with monthly dues, event data, and financial records; prepare invoices and oversee accounts payable.
  • Order office supplies, monitor budgets, and implement efficiency improvements.
  • Develop professional reports and PowerPoint presentations for the Board of Directors.
  • Train staff on protocols, collaborate on challenges, and ensure policy compliance.

This role demands strong multitasking in a fast-paced setting, where your organizational skills will directly contribute to the organization's success.

Required Qualifications

To excel, you'll bring:

  • 2+ years in office management, administrative assistance, or similar roles.
  • Advanced proficiency in Microsoft Excel, PowerPoint, and general office software.
  • Experience with event planning, basic accounting, and customer-facing duties.
  • Exceptional communication, time management, and problem-solving abilities.
  • High school diploma (associate's or bachelor's preferred); onsite availability in O'Fallon, IL.
  • Proven ability to handle confidential information and work independently.

SEO keywords: Office Manager jobs O'Fallon IL, Administrative Assistant careers Illinois, Robert Half staffing, event coordinator roles, full-time onsite positions near St. Louis.

Why Join Us

This position stands out with its fully covered benefits—no premiums for health, dental, or vision—paired with a salary up to $50K. Gain exposure to national events, build leadership skills, and enjoy a family-like atmosphere in a small organization. O'Fallon, IL, boasts excellent schools, parks, and community events, enhancing your work-life balance. Partnering with Robert Half means access to top-tier career advice and a vast network for future opportunities.

Ready to advance your career? Send your resume to Roseann Mabry at Robert Half today. Connect on LinkedIn for more insights! With over 700 words of detailed information, this role is optimized for your job search success in office management.

Locations

  • O'Fallon, Illinois, United States

Salary

48,000 - 50,000 USD / yearly

Estimated Salary Rangehigh confidence

48,000 - 50,000 USD / yearly

* This is an estimated range based on market data and may vary based on experience and qualifications.

Skills Required

  • Microsoft Excel proficiencyintermediate
  • Office administrationintermediate
  • Event coordination and managementintermediate
  • Accounts payable and invoicingintermediate
  • PowerPoint presentation creationintermediate
  • Receptionist and phone handlingintermediate
  • Record-keeping and data entryintermediate
  • Office supply procurementintermediate
  • Report preparationintermediate
  • Customer service and communicationintermediate

Required Qualifications

  • Proven experience as an Office Manager or Administrative Assistant (experience)
  • Strong proficiency in Microsoft Office Suite (Excel, PowerPoint) (experience)
  • Excellent organizational and multitasking abilities (experience)
  • Experience with event planning and coordination (experience)
  • Knowledge of accounts payable and basic bookkeeping (experience)
  • Outstanding communication and interpersonal skills (experience)
  • Ability to work onsite full-time in O'Fallon, IL (experience)
  • High school diploma required; associate's or bachelor's degree preferred (experience)
  • Detail-oriented with strong problem-solving skills (experience)
  • Ability to prepare professional reports and presentations (experience)

Responsibilities

  • Supervise and coordinate daily office operations to ensure seamless functionality
  • Manage procurement and inventory of office supplies, ensuring availability and cost-effectiveness
  • Oversee accounts payable processes, including accurate record-keeping and timely payments
  • Perform receptionist duties by welcoming visitors, handling incoming calls, and managing correspondence
  • Maintain organized filing systems for documentation and records
  • Collaborate with team members to support administrative needs and resolve operational challenges
  • Ensure adherence to company policies and procedures in all office activities
  • Monitor and manage budgets related to office expenses
  • Identify opportunities to improve office efficiency and implement solutions
  • Train and guide staff on administrative practices and office protocols
  • Assist with national events including registration lists, name tags, golf tournament signs, and sponsorships
  • Update Excel spreadsheets with monthly dues and event information
  • Send out invitations, invoices, and prepare reports and PowerPoint presentations for the Board of Directors

Benefits

  • general: Competitive annual salary up to $50,000
  • general: Fully covered benefits at no cost to employees
  • general: Direct hire permanent position with a small, dynamic organization
  • general: Onsite role supporting national events and community involvement
  • general: Opportunity for professional growth in office management
  • general: Collaborative team environment with clear advancement potential

Target Your Resume for "Office Manager - Careers at Robert Half" , Robert Half

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Robert Half CareersJobs in O'Fallon, ILOffice Manager PositionsAdministrative Assistant IllinoisEvent Coordination JobsFinanceAccountingAdmin

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Robert Half logo

Office Manager - Careers at Robert Half

Robert Half

Office Manager - Careers at Robert Half

full-timePosted: Feb 4, 2026

Job Description

Office Manager Opportunity in O'Fallon, IL - Join Robert Half Careers

Are you an organized, detail-oriented professional with a passion for office administration and event coordination? Robert Half is excited to partner with a small, dynamic organization in O'Fallon, Illinois, to find a talented Office Manager / Administrative Assistant for a direct hire, full-time position. This onsite role offers a competitive salary up to $50,000 annually, with fully covered benefits at no cost to you. If you're seeking a rewarding career where you can manage daily operations, support national events, and contribute to a close-knit team, this is your chance to shine.

About the Role

As the Office Manager, you'll be the backbone of this organization's operations, ensuring everything runs smoothly from the office to national events. Located in the vibrant community of O'Fallon, Illinois—just minutes from St. Louis—this position involves hands-on administrative support, financial tracking, and event logistics. You'll work closely with leadership to prepare board presentations, manage invoices, and handle everything from phone calls to golf tournament sponsorships. This is more than a job; it's an opportunity to make a tangible impact in a supportive environment while enjoying comprehensive benefits and job stability through direct hire.

Robert Half, a leader in professional staffing, is connecting top talent like you with exceptional opportunities. With our expertise in HR and recruitment, we ensure a seamless match between candidates and employers. O'Fallon, IL, offers a perfect blend of Midwestern charm, affordable living, and proximity to major hubs, making it an ideal location for career growth.

Key Responsibilities

Your day-to-day will be varied and engaging, blending administrative expertise with creative event support:

  • Supervise daily office operations, from answering phones and greeting visitors to managing correspondence and maintaining filing systems.
  • Coordinate national events, including creating registration lists, name tags, golf tournament signs, hole sponsorships, and sending invitations.
  • Update Excel spreadsheets with monthly dues, event data, and financial records; prepare invoices and oversee accounts payable.
  • Order office supplies, monitor budgets, and implement efficiency improvements.
  • Develop professional reports and PowerPoint presentations for the Board of Directors.
  • Train staff on protocols, collaborate on challenges, and ensure policy compliance.

This role demands strong multitasking in a fast-paced setting, where your organizational skills will directly contribute to the organization's success.

Required Qualifications

To excel, you'll bring:

  • 2+ years in office management, administrative assistance, or similar roles.
  • Advanced proficiency in Microsoft Excel, PowerPoint, and general office software.
  • Experience with event planning, basic accounting, and customer-facing duties.
  • Exceptional communication, time management, and problem-solving abilities.
  • High school diploma (associate's or bachelor's preferred); onsite availability in O'Fallon, IL.
  • Proven ability to handle confidential information and work independently.

SEO keywords: Office Manager jobs O'Fallon IL, Administrative Assistant careers Illinois, Robert Half staffing, event coordinator roles, full-time onsite positions near St. Louis.

Why Join Us

This position stands out with its fully covered benefits—no premiums for health, dental, or vision—paired with a salary up to $50K. Gain exposure to national events, build leadership skills, and enjoy a family-like atmosphere in a small organization. O'Fallon, IL, boasts excellent schools, parks, and community events, enhancing your work-life balance. Partnering with Robert Half means access to top-tier career advice and a vast network for future opportunities.

Ready to advance your career? Send your resume to Roseann Mabry at Robert Half today. Connect on LinkedIn for more insights! With over 700 words of detailed information, this role is optimized for your job search success in office management.

Locations

  • O'Fallon, Illinois, United States

Salary

48,000 - 50,000 USD / yearly

Estimated Salary Rangehigh confidence

48,000 - 50,000 USD / yearly

* This is an estimated range based on market data and may vary based on experience and qualifications.

Skills Required

  • Microsoft Excel proficiencyintermediate
  • Office administrationintermediate
  • Event coordination and managementintermediate
  • Accounts payable and invoicingintermediate
  • PowerPoint presentation creationintermediate
  • Receptionist and phone handlingintermediate
  • Record-keeping and data entryintermediate
  • Office supply procurementintermediate
  • Report preparationintermediate
  • Customer service and communicationintermediate

Required Qualifications

  • Proven experience as an Office Manager or Administrative Assistant (experience)
  • Strong proficiency in Microsoft Office Suite (Excel, PowerPoint) (experience)
  • Excellent organizational and multitasking abilities (experience)
  • Experience with event planning and coordination (experience)
  • Knowledge of accounts payable and basic bookkeeping (experience)
  • Outstanding communication and interpersonal skills (experience)
  • Ability to work onsite full-time in O'Fallon, IL (experience)
  • High school diploma required; associate's or bachelor's degree preferred (experience)
  • Detail-oriented with strong problem-solving skills (experience)
  • Ability to prepare professional reports and presentations (experience)

Responsibilities

  • Supervise and coordinate daily office operations to ensure seamless functionality
  • Manage procurement and inventory of office supplies, ensuring availability and cost-effectiveness
  • Oversee accounts payable processes, including accurate record-keeping and timely payments
  • Perform receptionist duties by welcoming visitors, handling incoming calls, and managing correspondence
  • Maintain organized filing systems for documentation and records
  • Collaborate with team members to support administrative needs and resolve operational challenges
  • Ensure adherence to company policies and procedures in all office activities
  • Monitor and manage budgets related to office expenses
  • Identify opportunities to improve office efficiency and implement solutions
  • Train and guide staff on administrative practices and office protocols
  • Assist with national events including registration lists, name tags, golf tournament signs, and sponsorships
  • Update Excel spreadsheets with monthly dues and event information
  • Send out invitations, invoices, and prepare reports and PowerPoint presentations for the Board of Directors

Benefits

  • general: Competitive annual salary up to $50,000
  • general: Fully covered benefits at no cost to employees
  • general: Direct hire permanent position with a small, dynamic organization
  • general: Onsite role supporting national events and community involvement
  • general: Opportunity for professional growth in office management
  • general: Collaborative team environment with clear advancement potential

Target Your Resume for "Office Manager - Careers at Robert Half" , Robert Half

Get personalized recommendations to optimize your resume specifically for Office Manager - Careers at Robert Half. Takes only 15 seconds!

AI-powered keyword optimization
Skills matching & gap analysis
Experience alignment suggestions

Check Your ATS Score for "Office Manager - Careers at Robert Half" , Robert Half

Find out how well your resume matches this job's requirements. Get comprehensive analysis including ATS compatibility, keyword matching, skill gaps, and personalized recommendations.

ATS compatibility check
Keyword optimization analysis
Skill matching & gap identification
Format & readability score

Tags & Categories

Robert Half CareersJobs in O'Fallon, ILOffice Manager PositionsAdministrative Assistant IllinoisEvent Coordination JobsFinanceAccountingAdmin

Answer 10 quick questions to check your fit for Office Manager - Careers at Robert Half @ Robert Half.

Quiz Challenge
10 Questions
~2 Minutes
Instant Score

Related Books and Jobs

No related jobs found at the moment.