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Careers
One role open · Full time

Bookkeeper &
office administrator

The Bronx, NY. Books, certified payroll, compliance and the document flow — all running through Axiom, our in-house AI system, and all ending with you.

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Why this job is different
80%
of a normal bookkeeping job is keystrokes.
That is exactly what caps it.

Here it's handled by Axiom, our in-house agentic AI system. It processes sign-in sheets, generates certified payroll, files documents and drafts the paperwork. It is also wrong sometimes — which is exactly where you come in.

Primary user
Your daily tool for payroll, filing, and reporting.
Quality gate
Every number it produces, you verify before it goes out.
Feedback loop
You flag the errors and edge cases that get fixed.
Codifier
You document how the work really happens, so it can be automated.
No certified payroll experience? We'll teach you.

Axiom generates the forms — you're learning to review, not to type.

The scope

Own the back office.

Four areas. All of them run through Axiom, and all of them end with you.

01
Books & records

AP/AR end to end, vendor communication, reconciliations, job costing, purchase orders, and audit-ready books.

02
Compliance

Weekly certified payroll for prevailing-wage projects, payment requisitions for GCs, COIs, permits, and agency deadlines.

03
Office administration

Mail, receipts, packing slips and contracts through the document pipeline. Vendor accounts. Onboarding paperwork.

04
Making the system better

Verify what Axiom produces, flag what it gets wrong, and help codify the workflows so it keeps improving.

You'd report to the owner and work alongside our operations manager as a peer.

Where this role goes

This is not a terminal position.

Automating the data entry is not how we shrink this job. It is how one person can hold a much bigger one. As the company scales, this becomes the seat that runs the entire business side.

Start
Bookkeeper & office administrator

Books, compliance, office admin, vendors

Next
Controller / business manager

WIP schedules, cash forecasting, CPA relationship

Then
Finance & administration lead

Owns the function, with staff of your own

Compensation is reviewed as that scope grows.

Who we're looking for

Three things matter more than the rest.

1
Bookkeeping depth

3+ years hands-on. Construction industry strongly preferred. Strong Excel and QuickBooks.

2
Systems-level thinking

You see processes, not tasks. You spot the pattern behind recurring problems and can describe a workflow clearly enough that someone else — or a machine — could run it.

3
Real comfort with AI

You already use tools like Claude or ChatGPT in your work, and you're excited rather than nervous about working alongside AI agents.

Also expected

Meticulous attention to detail. Organized and self-directed. Trustworthy with confidential payroll and financial data. Clear written communication.

Nice to have

Certified payroll or prevailing-wage experience. NYC agency paperwork (Parks, DDC, SCA). Notary license. Experience writing SOPs or training others.

We would rather train the right thinker than hire the wrong specialist.

Apply

Tell us how you actually use AI.

Send your resume and a short note — five to ten sentences — describing a specific way you've used AI to do your work better. Not theory. Something you actually did.

Applications without the note won't be considered.

Apply on Indeed

The route we prefer — your application lands where we track it. Answer the AI question in the screener and your note comes through with your resume.

Apply on Indeed→
Or apply here
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We answer within a week.
Application sent

Thanks — we've got it.

Someone from the office will call you within a week. If it's urgent, reach us at 718-519-6961.

Rather not fill in a form?Email your resume and note to careers@mainstreamelectric.comMainstream Electric Inc is an equal opportunity employer.