About us
Seiiki Builders are growing residential and commercial builders. We run a compact, small office in Buderim and are expanding — we want someone who'll be hands-on at the grassroots until we move as we grow soon in 2026, build systems, protect the owner's time and drive cashflow and project delivery.
Role summary (no fluff)
Senior operator who does: AR/AP, weekly payment runs, bookkeeping supervision, payroll/STP oversight, EA/bookkeeper line management, and cross-team support. You will handle the Construction Manager's calls and calendar, follow up leads and sales activity, coordinate marketing tasks, prepare job packs for PMs, and attend sites when needed to get things moving.
Key responsibilities
* Handle calls for the Construction Manager and owner, triage and escalate; set and manage calendars (site meetings, callbacks, deep-work blocks).
* Run weekly payment cycles: verify invoices vs PO/work, prepare payment packs, flag disputes and present for approval.
* Own AR: raise invoices in Xero, chase, agree payment plans within authority, escalate for recovery when required.
* Supervise/coordinate Xero bookkeeper, ensure month-end/BAS readiness.
* Payroll / STP oversight or manage payroll provider.
* Manage front-of-house (EA/VA), lead intake and quote → invoice workflow; follow up leads and hand over qualified prospects to sales/CM.
* Coordinate with the sales & marketing team: follow up marketing leads, schedule campaigns, manage Google/review requests, and ensure CRM records are current.
* Create and enforce SOPs: intake, estimating → variations → invoicing → closeout.
* Produce weekly ops & finance dashboard for the owner: cash, AR aged, payments due, margins, top risks.
* Build and maintain Excel reporting models.
* Work with and improve job management / CRM systems (Buildertrend)
* Assist Construction Manager / Project Managers: prepare job status packs, manage variation paperwork, update RFI/defect logs, support procurement and material scheduling, and attend sites as needed to resolve admin/coordination issues.
* Provide practical input across sales, estimating and project delivery when required.
Must-have
* 2+ years in construction / trades admin or similar operations role.
* Advanced Excel skills
* Advanced Xero user (AR/AP and payroll experience).
* Exposure to job management / construction CRM systems (Buildertrend, AroFlo, SimPRO, WorkflowMax or other similar CRMs).
* Demonstrated experience handling CM/PM admin (variations, RFIs/defects, procurement).
* Confident decision-maker, strong commercial judgement, and ability to lead a small admin team.
* Comfortable attending site as required for important client meetings (hand over, special milestones)
Nice to have but not required
* Experience preparing BAS / month-end, and building Excel dashboards that drive decisions.
* Experience supporting sales & marketing (CRM lead flows, campaign scheduling).
What we offer
* Real authority and ownership of outcomes.
* Immediate impact role at the grassroots — help build our systems as we scale and move to larger premises. Have input, collaborate and work with the owner about what this can turn into.
* Flexible and open minded office culture, its about the people not the office.
* Paid 2-week trial so you can prove your capability.
How to apply
Apply through the Seek portal and describe your experience in a busy office environment.