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Salary
≈ $43k – $98k per year (Estimated)
Location
In office (Greenwich)
Employment
Part-Time

Confirmed on the employer's own hiring board on Oct 1, 2026. First seen by Alion on Sep 28, 2026. oneZero scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Company oneZero 2026-06-12T08:46:19-04:00 oneZero was founded in 2009 by Andrew Ralich and Jesse Johnson with a vision of driving innovation in financial markets' technology. Headquartered in Boston, we have 200 global employees, delivering superior results for 250+ customers.

Come join oneZero Financial Systems!

oneZero empowers banks, brokerages, and hedge funds with cutting-edge trade routing and execution technology. Our platform is deployed with 200+ entities globally and delivers a low-latency trading environment, integrations with the world’s leading execution venues, and highly reliable IT infrastructure and technical support-all fullycustomizable and scalable to meet any business model or market size. We take pride in our collaborative, high-energy work environment and our highly motivated team of engineers. We are currently seeking a motivated and talented part-time Office Assistant to join our Sydney office.

Why oneZero?

Position Details

  • Part-time role: 25 hours per week
  • Schedule: 5 days per week
  • Location: On-site at the oneZero Sydney office
  • Applicants must bebased in Sydney orwilling to relocate

Benefits

  • Competitive bonus plan
  • Company-provided parking
  • Daily lunch provided in the office
  • Private Health Insurance
  • Monthly wellness program subscription

Job Purpose

Provide administrative, secretarial, and clerical support to office staff to ensure an efficient, well-organized, and productive office environment.

Key Responsibilities

  • Greet and assist visitors
  • Order workplace supplies and maintain delivery records
  • Ensure the office is neat, well-stocked, and functional
  • Maintain kitchen supplies, including food, beverages, and cleaning products
  • Order daily lunch for all employees
  • Coordinate with building maintenance and cleaning staff
  • Run work-related errands (e.g., post office)
  • Prepare and distribute outgoing mail
  • Assist with employee and meeting schedules as needed
  • Photocopy and scan documents
  • Organize and maintain files and records
  • Contribute to a positive work environment that supports productivity and high employee morale
  • Perform other duties as assigned
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