**Brand:** Post Holdings Inc. **Categories:** Administrative/Office & Facilities Services **Locations:** Saint Louis, Missouri **Position Type:** Regular Full-Time **Remote Eligible:** No **Req ID:** 28480 **Job Description** **Business Unit Overview** Contribute meaningfully at the core of corporate operations for Post Holdings, Inc. We are seeking a skilled Office Assistant to join our St. Louis headquarters and support our corporate leaders with top-tier administrative and office services. This full-time, onsite role offers the chance to be at the heart of our daily operations—balancing admin support, office coordination, and event logistics. If you’re a multitasker with a sharp eye for detail and a passion for creating order, this is your opportunity to help fuel team success. Feeding the world is what we do – how we do it is unique. We are not your textbook consumer packaged goods company. While others may be slow to make change happen, Post continuously drives both inorganic and organic growth. Our history is evidence of that fact with over 100 years of heritage and growth from brands that transcend generations like Honey Bunches of Oats, Fruity Pebbles, Malt-O-Meal, Bob Evans, Kibbles 'n Bits, Egg Beaters, Peter Pan peanut butter and more. Our foodservice and ingredient businesses supply other products you love for brands, restaurants and stores. Our offices and manufacturing sites are in more than 60 locations in five countries, and we have 11,500+ employees. Over the past 12 years, Post has made 25+ acquisitions and reached $7.9 billion in net sales in fiscal 2024. During turbulent times of market uncertainty, the food industry has provided a level of stability unlike other industries. Post Holdings, Inc. is a Fortune 500® company headquartered in Brentwood, a suburb of St. Louis, Missouri. Our casual professional atmosphere encourages team members to collaborate, innovate and support our operating companies. Our passion and drive advance the reputation of our operating companies and brands—together, we make a difference. Responsibilities Administrative Support Manage calendar and prioritize inquiries and requests, resolve scheduling conflicts, schedule internal and external meetings for the corporate leaders as requested Coordinate travel arrangements, prepare itineraries, plan logistics and prepare and submit expense report Prepare certain documents on behalf of leaders and ability to proofread materials for clarity, completeness, and accuracy Prepare and send letters as directed Order, schedule and set up food for luncheons and trainings Screen all incoming phone calls, inquiries, visitors, and correspondence, and route accordingly Perform research as needed Create reports, presentations and meeting minutes as requested Develop and carry out an efficient documentation and filing system Coordinate events as necessary Perform other general administrative duties and project work as assigned Office Services Greet and assist onsite guests Order and timely maintain office supply inventory in the building Identify opportunities for process and office management improvements, and support these improvements Ensure office policies and procedures are implemented appropriately Assist with office layout planning and office moves with Corporate Facilities Place service calls for office equipment and act as the primary point of contact for general office inquiries and building maintenance Maintain and stock copy room, kitchen and conference rooms in an orderly and timely manner Ensure a clean and organized office environment Provide oversight for the safety and security of employees and their property Manage expense reporting according to internal policies and procedures Oversee proper maintenance for coffee service, vending machines, cleaning, etc. Liaison with building management company Qualifications Education/Experience: At least 5 years of experience as a receptionist, office manager or an administrative assistant High School degree or equivalent required Knowledge/Skills: Excellent knowledge of Microsoft Office and Adobe Professional Ability to work with minimal oversight Exemplary planning and time management skills Strong attention to detail and organizational skills Ability to problem solve, including non-routine issues Ability to multitask, prioritize daily workload Establish and maintain cooperative and effective working relationships with others Excellent written and oral communication skills Self-motivated and ability to work independently Complete work with many interruptions Ability to maintain discretion and keep highly sensitive information confidential Physical Demands Sitting or standing for extended periods of time Bending at the waist, kneeling or crouching to file materials Lifting, carrying, pushing or pulling objects up to 25 pounds Reaching overhead and above shoulders to retrieve supplies Onsite role; 5 days a week; set schedule Post Holdings provides equal employment opportunities to all employees and applicants for employment without regard to race, color, religion, gender, sexual orientation, national origin, age, disability, genetic information, marital status, status as a covered veteran and any other category protected under applicable federal, state, provincial and local laws. Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities The contractor will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with the contractor’s legal duty to furnish information. 41 CFR 60-1.35(c)