Administrative Assistant

Position Summary The Marathon Detroit Refinery has an opening for an on‑site Administrative Assistant position. This position will proactively provide a full range of administrative support to the Detroit Refinery Environmental, Safety, and Security Department. Key Responsibilities Carry out assigned responsibilities with minimal guidance while balancing the varied needs and priorities of multiple individuals and work groups. Demonstrate ownership mindset, attention to detail, and commitment to accurate, high-quality work, including reviewing information carefully and identifying potential issues early. Manage multiple organizational needs and priorities calmly, professionally, with confidentiality, and with confidence, while maintaining a positive, service-oriented attitude. Communicate promptly, clearly, and professionally with internal and external stakeholders; possess strong verbal and written skills. Collaborate with team members and support other administrative assistants and department personnel to achieve refinery goals. Be highly self‑motivated, organized, dependable, adaptable, with strong interpersonal skills, continuous‑improvement mindset, and willingness to learn, share information, and improve processes. Support refinery initiatives and priorities. Maintain and operate office equipment, order office supplies. Coordinate invoice processing and submit work notifications. Schedule, plan, and organize all logistical details for in‑house and off‑site meetings, conferences, and other events. Prioritize work effectively, meet deadlines, and anticipate needs and requirements. Proactively support assigned leaders while taking direction from multiple staff members and balancing group needs. Manage the department’s vacation calendar, coordinate team calendars and schedules, and arrange logistics for internal and external meetings. Partner and coordinate meetings with third‑party strategic partners. Distribute routine and ad‑hoc communications electronically to refinery employees and key stakeholders. Schedule monthly safety meetings for all operations and maintenance crews. Lead or assist with committees that coordinate employee engagement. Handle confidential data and matters discreetly and professionally. Work as a team player with other assistants and teams. Track safety inspections and work orders. Perform special project tasks as required. Assist with onboarding of new refinery employees. Provide oversight of refinery PPE programs and act as liaison between MPC and suppliers. Education and Experience High school diploma or GED required. At least 2 years of administrative assistant or related experience preferred. Proficient in Microsoft Word, Excel, PowerPoint, and Outlook. Must be able to wear appropriate PPE in the refinery, physically perform all tasks, and pass a hair drug test and physical exam. Valid driver’s license required. Travel requirement: 5% or less. Available work schedules: 9/80 or 5/40. Skills Strong verbal and written communication skills. Excellent interpersonal skills and a preference for collaboration. Ability to work with high‑profile individuals internally and externally. Ability to work in a fast‑paced, sometimes unpredictable environment. Proactive, work well under pressure and tight deadlines, and juggle multiple projects. Ability to learn new software and computer programs as needs shift. Proven analytical and problem‑solving abilities. Commitment to continuous improvement, information accuracy, and a safety‑focused work environment. Highly organized, detail‑oriented, and self‑motivated. Flexible and willing to help out the team when requested. Location Detroit, Michigan Equal Opportunity Employer Marathon Petroleum Company LP is an Equal Opportunity Employer and gives consideration for employment to qualified applicants without discrimination on the basis of race, color, religion, creed, sex, gender (including pregnancy, childbirth, breastfeeding or related medical conditions), sexual orientation, gender identity, gender expression, reproductive health decision‑making, age, mental or physical disability, medical condition or AIDS/HIV status, ancestry, national origin, genetic information, military, veteran status, marital status, citizenship or any other status protected by applicable federal, state, or local laws. Benefits Marathon Petroleum offers a total rewards program which includes, but is not limited to, access to health, vision, and dental insurance; paid time off; 401(k) matching program; paid parental leave; and educational reimbursement. Detailed benefit information is available at The hired candidate will also be eligible for a discretionary company‑sponsored annual bonus program. #J-18808-Ljbffr