Accounts Payable & Office Coordinator

Mariner•Saint John, NB

1d•Onsite

About The Position

Mariner is seeking a detail-oriented and proactive professional to join our team as Accounts Payable & Office Coordinator. This role is primarily focused on accounts payable, with additional responsibility for front desk and office coordination. This is an ideal opportunity for someone who enjoys financial operations, takes pride in accuracy, and likes being part of a collaborative, in-office environment. This role is based in our Saint John office and follows a Monday to Friday schedule from 8:00 AM to 5:00 PM.

Requirements

3–5 years of experience in accounts payable or a similar finance role
College diploma or bachelor’s degree in business, administration, or a related field, or equivalent experience
Proficiency in Microsoft Office Suite (Word, Excel, Outlook)
Experience with QuickBooks Online or similar accounting software
Strong attention to detail and accuracy
Excellent organizational, multitasking, and time-management skills
Ability to handle confidential information with discretion
Strong professional communication and interpersonal skills

Nice To Haves

Experience with office administration or front desk responsibilities is preferred
Experience with Mavenlink and/or Egencia is considered an asset
Always improving your skills and knowledge: you want to be the best at what you do
Curious and creative; comfortable taking on new problems and challenges
A self-starter with the ability to recommend priorities to the project leader
Comfortable working through problems and figuring things out with minimal supervision
Great problem-solving skills: thorough and reliable
Able to work in a team: share knowledge and assist other team members
A good communicator: able to explain your ideas and recommendations
Well organized and dependable under pressure: you manage your time effectively
Energized by our company values!

Responsibilities

Process vendor invoices and employee expenses accurately and on time
Manage accounts payable workflows in QuickBooks Online (QBO)
Reconcile invoices, track approvals, and ensure proper documentation
Support month-end close activities, including accruals and reporting
Maintain organized, audit-ready financial records
Identify opportunities to improve AP processes and drive efficiencies
Greet visitors at the front desk and direct them appropriately
Act as the first point of contact for incoming calls, emails, and general inquiries
Maintain office security procedures, including visitor logs and badge management
Manage incoming and outgoing mail and coordinate shipments
Coordinate office supplies, vendors, and general administrative needs
Support travel booking and coordination using Egencia
Assist with scheduling meetings, booking rooms, and organizing internal events
Coordinate food orders and support in-office meetings in Saint John
Assist with administrative tasks such as data entry, documentation, and reporting
Perform other related duties as required