WHO WE ARE Mariner innovates always and everywhere, turning novel ideas into practical solutions. From products and services to venture creation, we build better futures powered by people. Our purpose has always been to be a great, everlasting technology company for those who make an impact - elevating people, data, and technology in the best way to solve hard problems. We partner with people embracing change, leveraging data, cybersecurity, cloud, and change management to drive successful business outcomes that matter to our customers.
Mariners build for change. Like SHIFT Energy, our energy management and decarbonization company. Or East Valley Ventures, created to scale social economic impact in our communities through investment and mentorship of emerging change-makers and their companies.
Mariner’s purpose has always been to be a great, everlasting technology company and the core values that guide us every day are:
OUR VALUES • We care for our team. • We care about the impact we have on our community. • We serve by solving complex problems. • We grow because growth fuels opportunities. • We innovate always and everywhere. • We build a business that lasts.
OVERVIEW OF THE ROLE 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.
WHAT YOU’LL BE DOING IN THE ROLE
Accounts Payable (Primary Focus – 70–80%) • 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
Office Administration & Front Desk (20–30%) • 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
WHAT SKILLS / QUALIFICATIONS YOU’LL NEED TO DO THE JOB • 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 • Experience with office administration or front desk responsibilities is preferred • Experience with Mavenlink and/or Egencia is considered an asset • 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
…AND YOU ARE... • 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!
MARINER OFFERS YOU • A values-driven workplace where people really matter • A flexible work environment • Competitive salary, retirement savings program, and rewards program • Comprehensive health, dental, vision, life and disability insurance plans and access to e-health care • Paid vacation, maternity/parental leave, paid sick leave and paid Mariner MyLife days • Unlimited training
WHY MARINER? We believe in making a positive impact in the communities where we live and work! Not only are we passionate about nurturing a thriving technology sector here in Atlantic Canada, but we are also committed to solving technology challenges that will make an impact worldwide. Technology is everlasting, and we take pride in connecting world class talent to world class projects and business solutions.
To achieve this, we know we need to be all in on training and development of our team so we can continue to move the needle in the technology sector together. Of course, we offer competitive compensation and benefits packages to our team, but our competitive edge is the development and training that our team experiences every day.
Be part of our vibrant community that values diversity and embraces inclusion at every level. We are committed to fostering a culture where individuals from all backgrounds and walks of life feel empowered to contribute their unique perspectives. Our collaborative environment celebrates the richness of ideas and experiences, and we believe that by embracing diversity, we can achieve greater innovation and excellence together. Come and help us create a workplace that reflects the beautiful tapestry of our global community.
