oneZero Financial Systems logo

oneZero Financial Systems

Finance, Tech, Software & IT Services
onezero.com
201-500 employees

oneZero Financial Systems delivers high-performance, multi-asset trading technology that enables financial institutions and brokers to compete in fast-moving global markets. Their platform supports forex, commodities, futures, cryptocurrency, and other asset classes, handling over $250B in daily trading volume and 14M+ transactions with unmatched reliability and scalability. Founded in 2009 by technology experts Andrew Ralich and Jesse Johnson, the company remains liquidity-neutral and independent, backed by top-tier private-equity firms Golden Gate Capital and Lovell Minnick Partners. With more than 200 employees across five continents and a client base of 250+ institutions, oneZero combines cutting-edge engineering with a culture of innovation and client-centric service.

Open Positions

Senior C++ Software Engineer

Somerville, Massachusetts, United States
Posted Jun 12
Full Time

5+ years of C++ development experience, ability to estimate and complete assignments with minimal oversight, positive team-oriented attitude, legal authorization to work in the US

Software Engineer JobsEngineering Jobs

Application Support Engineer (Weekend Shift)

New York, New York, United States
Posted Dec 16
Full Time

3+ years of experience in production operations or technical support, basic Linux system administration skills, and scripting experience

Information Technology JobsOperations Jobs

Application Support Engineer (Weekend Shift)

Sydney, New South Wales, Australia
Posted Jul 8
Full Time

2-5 years of experience in financial services industry, high proficiency in Microsoft Windows OS, and understanding of FIX protocol

Information Technology JobsFinance Jobs

Application Support Engineer (Weekend Shift)

Limassol, Cyprus, Cyprus • Somerville, Massachusetts, United States
Posted Jun 12
Full Time

2-5 years of experience supporting clients in the financial services industry, high proficiency in Microsoft Windows OS, and understanding of FIX protocol

Other

Desktop Support Engineer

Somerville, Massachusetts, United States
Posted Sep 11
Full Time

2+ years of experience in Desktop or IT Support, strong hands-on knowledge of Windows 10/11 and macOS, and experience supporting modern SaaS environments

Other

Lead I C++ Software Engineer

Canberra, Australia
Posted Jun 16
Full Time

5+ years C++ experience, 3+ years technical management or lead experience, good debugging skills, and strong understanding of object-oriented design principles

Software Engineer JobsEngineering Jobs

Lead SDET Quality Assurance Engineer

Somerville, Massachusetts, United States
Posted Oct 6
Full Time

10+ years of software development or automation development or technical team leadership experience

Software Engineer JobsQuality Assurance Jobs

Technical Project Manager

Somerville, Massachusetts, United States
Posted Nov 11
Full Time

Bachelor’s degree, familiarity with Agile/Scrum methodologies, and 3+ years of experience applying Agile/Scrum methodologies in a software development context

Business Operations & Strategy JobsEngineering JobsProject & Program Management Jobs

Product Manager, Admin and Operations

Sydney, New South Wales, Australia • Canberra, Australia
Posted Sep 18
Full Time

7+ years of experience as a professional leading projects or working on complex tasks that require a high degree of judgment, resourcefulness, and self-initiative

Business Operations & Strategy JobsProduct Jobs

Full Stack .NET Web Engineer

Canberra, Australia
Posted Jul 24
Full Time

3+ years of experience with C#, ASP.NET Core, and modern frontend technologies; Proven track record in designing, developing, and deploying full-stack applications; Strong expertise in React, Redux, and responsive design principles

Software Engineer JobsIT Support Jobs
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