Careers

We’re Hiring in Mississauga.

Three roles are open now: Accounting Interns on our corporate tax team, a Founder’s Office Associate in operations, and an Admin Intern. Applying takes about five minutes.

See open roles →Apply now

Open roles

Internship · 2 positionsMississauga, ON

Accounting Intern (Corporate Tax)

$24 per hour

Work on real corporate tax files for founder-led Canadian businesses from your first week, with a senior advisor reviewing your work and explaining the why.

What you’ll do

  • Help prepare T2 corporate tax returns and supporting schedules
  • Prepare GST/HST returns and year-end working papers
  • Reconcile accounts and keep client books current in cloud accounting software
  • Gather documents and follow up with clients on missing information
  • Support SR&ED and government funding files when they come in

What you bring

  • Currently in the 3rd or 4th year of an accounting or business program
  • A solid grasp of financial statements and basic Canadian tax
  • Comfort with Excel, and care with detail
  • Clear, friendly written communication

Eligibility: you must be a Canadian citizen or permanent resident. This internship is partially funded by a government program with that requirement.

Apply for this role →
Full-time · In personMississauga, ON

Founder’s Office Associate, Operations

Pay discussed at interview

Work directly with our Founder and CEO to keep the firm running and growing. You’ll own the operations behind every client file and help turn priorities into finished work.

What you’ll do

  • Manage the Founder’s calendar, inbox and follow-ups, and prepare briefs for client and partner meetings
  • Run client onboarding end to end: engagement letters, document requests and file setup
  • Track deadlines and workflow across tax, SR&ED and Virtual CFO files so nothing slips
  • Build and improve internal processes, templates and checklists
  • Keep firm systems tidy: CRM, practice management and shared drives
  • Coordinate events such as our Annual Soirée and founder sessions
  • Take on special projects as the firm grows

What you bring

  • Experience in operations, an executive or founder’s office, or a professional services firm
  • Strong organisation and follow-through; you close loops without being chased
  • Polished, warm communication with clients and the team
  • Comfort with Google Workspace or Microsoft 365, and quick to learn new tools
  • Able to work full-time in our Mississauga office
Apply for this role →
Internship · In personMississauga, ON

Admin Intern

$24 per hour

A hands-on start in how an advisory firm runs. You’ll work alongside our team on scheduling, client onboarding, documents and events, and learn the operations side of a growing business.

What you’ll do

  • Help manage calendars, meeting bookings and the shared inbox
  • Prepare client welcome packs, document requests and file setup
  • Scan, organise and track client documents
  • Help plan and run events such as our Annual Soirée
  • Pitch in on day-to-day office tasks

What you bring

  • A current student or recent graduate in business, administration or a related program
  • Organised, reliable and quick to learn
  • Clear, friendly communication by email and phone
  • Able to work in our Mississauga office

Eligibility: you must be a Canadian citizen or permanent resident. This internship is partially funded by a government program with that requirement.

Apply for this role →

Apply

Apply in About Five Minutes.

Pick a role, attach your résumé and tell us a little about yourself. We read every application and reply to everyone we move forward with.

Trouble with the form? Email your résumé to reach@orientum.co.

We use your details only to assess your application. See our privacy & terms.

Working here

Small Firm. Senior Work. No Pyramid.

01

You Own Files, Not Tasks

Client relationships from day one, with support. Not years of preparing schedules for someone else.

02

The Boring Work Is Automated

Our AI layer handles coding, reconciliation and first-pass modelling. You spend your time on judgement.

03

Technical Depth Is the Point

SR&ED, cross-border and growth-stage work: the problems that are actually interesting.

04

Mississauga-Based

We work together in our Mississauga office. Each role lists its on-site expectations.

Who fits here

A Clear Idea of Who Thrives.

Title and years of experience matter less than how you think and how you treat clients.

You Think Like an Owner

You care about the client’s business, not just the deliverable, and you follow things through without being chased.

You Explain Things Simply

You can take something technical and make it make sense to a founder in one conversation.

You Keep Learning

Tax law changes, tools change, clients grow. You like that, and you’re curious about what comes next.

Always looking

Not Seeing Your Role?

We don’t only hire for posted roles. If you work in tax, SR&ED, Virtual CFO, accounting or operations and share how we work, send us your résumé and a few lines on what you’re good at.

Email reach@orientum.co →