Office Administrator - Part Time with Marketing Agency

Location: Phoenix, AZ and Hybrid Employment Type: Part-Time 20-25 HRS A WEEK M-F About FT Media (formerly Fasturtle) FT Media (formerly Fasturtle) is a full-service digital marketing agency based in Phoenix, Arizona, with over 25 years of experience helping small and mid-size businesses grow. We serve clients across home services, HVAC, medical, contractors, and more. Our team is tight-knit, fast-moving, and passionate about delivering real results for real businesses.
Our Values - Be a G.I.A.N.T.
Growth -  We are committed to continuous personal and professional development. We invest in ourselves so we can deliver more for our clients and each other.
Integrity -  We do the right thing — always. We are honest, transparent, and trustworthy in every interaction with clients, partners, and each other.
Accountability -  We own every outcome — the wins and the lessons. We follow through on commitments, take responsibility, and never point fingers.
Next Level -  We lead with initiative and push beyond what's expected. We don't wait to be told — we see what needs to be done and we go do it.
Teamwork -  We are better together. We collaborate with generosity, support each other without hesitation, and win as one unified team.
We hire people who live these values — not just check boxes. If you do not align please don't apply. If you completely agree we would like to talk to you!
About the Role FT Media is seeking a detail-oriented, organized, and dependable Part-Time Office Manager to support the agency's internal operations. This role is the administrative backbone of our growing team — handling payroll processing, QuickBooks accounting tasks, and HR functions including paycheck administration. The ideal candidate is someone who thrives on accuracy, can manage confidential information with professionalism, and is comfortable wearing multiple hats in a small agency environment.
This is a part-time position with flexible scheduling, ideal for a self-starter who can work independently and keep the office running smoothly behind the scenes.This is a hands-on role requiring attention to detail, accountability, discretion, and strong problem-solving skills.
Key Responsibilities Payroll
Process bi-weekly or semi-monthly payroll for all employees and contractors in a timely and accurate manner
Verify timesheets, hours worked, and pay rates prior to each payroll run
Ensure proper tax withholdings, deductions, and employer contributions are applied
Submit payroll through the designated payroll platform (Paychex)
Address payroll questions or discrepancies from employees promptly and professionally
Maintain accurate payroll records and prepare reports as needed
QuickBooks Accounting
Manage day-to-day bookkeeping tasks in QuickBooks Online
Record invoices, payments, expenses, and journal entries accurately
Reconcile bank accounts, credit card statements, and vendor accounts on a monthly basis
Generate financial reports including P&L statements, balance sheets, and cash flow summaries
Work with the agency's CPA or external accountant to support quarterly/annual tax preparation
Track accounts payable and receivable; follow up on outstanding invoices as needed
Maintain organized digital records of all financial transactions
HR & Paycheck Administration
Distribute and maintain employee paychecks, pay stubs, and direct deposit confirmations
Manage new hire paperwork including I-9s, W-4s, direct deposit forms, and onboarding documents
Maintain confidential employee records and HR files in an organized system
Administer employee benefits tracking and coordinate open enrollment as needed
Coordinate offboarding documentation for departing team members
Ensure compliance with federal and state employment regulations and record-keeping requirements
Serve as a point of contact for basic HR questions from team members
General Office Management
Manage vendor relationships and coordinate office supply procurement
Support leadership with administrative tasks including scheduling and correspondence
Identify opportunities to improve internal processes and operational efficiency
Maintain a well-organized filing system (digital and physical) for business records
Qualifications Required
2+ years of experience in bookkeeping, accounting, or office management
Proficiency with QuickBooks Online or QuickBooks Desktop
Hands-on experience processing payroll using a payroll platform (ADP, Paychex, or similar)
Strong understanding of basic accounting principles and payroll tax requirements
Exceptional attention to detail and accuracy in data entry and financial records
Ability to handle sensitive and confidential information with absolute discretion
Strong organizational and time management skills
Proficient in Microsoft Office or Google Workspace (Docs, Sheets, Gmail)
Preferred
Associate's or Bachelor's degree in Accounting, Business Administration, or related field
Experience working in a small business or agency environment
QuickBooks ProAdvisor certification is a plus
Familiarity with HR compliance requirements in Arizona
Experience with digital file management and cloud-based tools
What We Offer Flexible part-time schedule — work hours tailored around your life
Collaborative and supportive team culture grounded in our G.I.A.N.T. values: Growth, Integrity, Accountability, Next Level, and Teamwork
Opportunity to grow with an established agency that's been trusted by hundreds of local businesses for 25+ years
Exposure to a dynamic digital marketing environment
Competitive hourly compensation commensurate with experience
FT Media recognizes employees in many ways for their contributions and their commitment to the organization. One such way is by offering a very comprehensive benefits package. This includes a competitive salary, a bonus structure, and a strong benefit program that includes, health, dental, and vision. At FT Media, we want to ensure all of our employees stay healthy, feel secure, and maintain a strong work/life balance.
EOE M/F/D/V