Assistant Billing Supervisor Jobs (NOW HIRING)

Calling all innovators - find your future at Fiserv.

We're Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. We connect financial institutions, corporations, merchants, and consumers to one another millions of times a day - quickly, reliably, and securely. Any time you swipe your credit card, pay through a mobile app, or withdraw money from the bank, we're involved. If you want to make an impact on a global scale, come make a difference at Fiserv.

Job Title

About your role:
As a Billing Supervisor you will own complex billing activities for a division of Fiserv, ensuring accurate, timely, and compliant client invoicing. You will partner closely with business unit leaders, Finance, Sales, and Shared Services to translate contract terms into clear billing, resolve issues, and identify revenue and cost optimization opportunities. Your work will directly support financial accuracy, client satisfaction, and operational efficiency.

What you'll do:

• Manage the end-to-end order-to-cash billing cycle for an assigned business unit, from contract interpretation through invoice delivery.
• Review and interpret client contracts, pricing schedules, and amendments to ensure accurate billing setup and ongoing invoice integrity.
• Perform invoice trend analysis, variance research, and root-cause investigation to resolve discrepancies and prevent recurring issues.
• Validate billing inputs from business partners and upstream systems to confirm completeness, accuracy, and proper approvals before invoicing.
• Lead through influence by driving cooperation, alignment, and best practices among team members.
• Lead and coordinate billing process and system improvements, including documenting requirements, testing changes, and updating procedures.
• Assist with SOX compliance and audit activities.
• Apply artificial intelligence (AI) solutions such as Microsoft Copilot and Power BI to streamline invoice creation, contract analysis, and data extraction.

Experience you'll need to have:

• 4+ years of experience in billing, accounting, finance, or a related field supporting complex client billing or order-to-cash processes.
• Experience using billing or enterprise resource planning (ERP) tools such as SAP or similar systems to manage high-volume financial data.
• Advanced proficiency in Microsoft Excel (pivot tables, XLOOKUP, and formula creation)
• Bachelor's degree in Accounting, Finance, Business, or a related field, or equivalent combination of education, related experience and/or military experience.

Experience that would be great to have:

• Experience interpreting contract language and pricing terms and applying them to billing configurations or invoicing workflows.
• Experience establishing governance and change adoption practices for new AI tools (e.g., Microsoft Copilot).

How you'll work:

• This role is on-site Monday through Friday. Fiserv considers in-person collaboration to be an essential part of this role as in-person office experiences help you with your overall onboarding experience and leads to stronger productivity.
• This role requires the use of a computer and audio equipment.

Sponsorship:

• You must currently possess valid and unrestricted U.S. work authorization to be considered for this role. Individuals with temporary visas including, but not limited to, F-1 (OPT, CPT, STEM), H-1B, H-2, or TN, or any candidate requiring sponsorship, now or in the future, will not be considered for this role.

Milwaukee Perks:

• Free, secure, covered parking
• Onsite fitness center with lockers and showers
• Easy access to restaurants, shops, and entertainment, including 3rd Street Market Hall

Benefits at Fiserv:

• Fuel Your Life program to support physical, financial, social, and emotional well-being
• Paid holidays and generous time away policies
• No-cost mental health support through Employee Assistance Programs
• Living Proof program to recognize your peers' extra effort with points used for rewards
• Eight Employee Resource Groups to foster a collaborative culture
• Unparalleled professional growth with training, development, and internal mobility opportunities
• Retirement planning and discounted shares with the Employee Stock Purchase Plan
• Medical, dental, vision, life, and disability insurance options available day one
• Tuition assistance and reimbursement program
• Paid parental, caregiver, and military leave

#LI-CR1

This role is not eligible to be performed in Colorado, California, District of Columbia, Hawaii, Illinois, Massachusetts, Maryland, Minnesota, New Jersey, New York, Nevada, Rhode Island or Washington.

It is unlawful to discriminate against a prospective employee due to the individual's status as a veteran.

Please note that salary ranges provided for this role on external job boards are salary estimates made by outside parties and may not be accurate.

Thank you for considering employment with Fiserv. Please:

• Apply using your legal name
• Complete the step-by-step profile and attach your resume (either is acceptable, both are preferable).

Our commitment to Equal Opportunity:

Fiserv is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, gender, gender identity, sexual orientation, age, disability, protected veteran status, or any other category protected by law.

If you have a disability and require a reasonable accommodation in completing a job application or otherwise participating in the overall hiring process, please contactAskHR.US@fiserv.com. Please note our AskHR representatives do not have visibility to your application status. Current associates who require a workplace accommodation should refer to Fiserv's Disability Accommodation Policy for additional information.

Note to agencies:

Fiserv does not accept resume submissions from agencies outside of existing agreements.Please do not send resumes to Fiserv associates. Fiserv is not responsible for any fees associated with unsolicited resume submissions.

Warning about fake job posts:

Please be aware of fraudulent job postings that are not affiliated with Fiserv. Fraudulent job postings may be used by cyber criminals to target your personally identifiable information and/or to steal money or financial information. Any communications from a Fiserv representative will come from a legitimate Fiserv email address.