oneZero Financial Systems is a leading provider of multi‑asset class trading technology that enables financial institutions and brokers to compete in global markets. Founded in 2009 in Cambridge, MA, the company delivers high‑performance, scalable software handling over $250B in average daily volume and 14 million transactions per day across equities, FX, commodities, futures, and cryptocurrency. Its platform offers connectivity, aggregation, and advanced analytics, supporting 250+ clients worldwide through development and operations centers in North America, Europe, Asia, and Australia. Backed by top‑tier private equity firms, oneZero remains liquidity neutral and independent, focusing on reliability, speed, and regulatory compliance to give traders a competitive edge.
Open Positions
Senior Application Support Engineer
5+ years of experience, strong operating system proficiency, experience with production systems and application monitoring
Principal Full Stack .NET Web Engineer
8+ years of experience with C#, ASP.NET core, and modern frontend technologies, expertise in full-stack development, and proven track record in designing, developing, and deploying full-stack applications
C++ Software Engineer Lead I
Must have 5-10 years of experience in C++ development and debugging, as well as proven track record of successful technical management or lead experience
Senior Product Manager- Institutional
7+ years of experience in product management or development management in institutional FX trading technology, experience working in distributed, global product teams, and deep understanding of institutional FX market structure and client segments
Regional Relationship Manager
Graduate degree preferred, experience in Customer Success or similar role, and strong attention to detail required
Site Reliability Engineer
Minimum 2 years of experience in production support, SRE, or DevOps with strong AWS and Python skills
Application Support Engineer (Weekend Shift)
2-5 years of experience supporting clients in the financial services industry, high proficiency in Microsoft Windows OS, and understanding of FIX protocol
Technical Project Manager
Bachelor’s degree, familiarity with Agile/Scrum methodologies, and 3+ years of experience applying Agile/Scrum methodologies in a software development context
Application Support Engineer (Weekend Shift)
3+ years of experience in production operations or technical support, basic Linux system administration skills, and scripting experience
Senior Product Manager- Institutional
7+ years of experience, Bachelor's degree, Direct experience in FX pricing and risk management, ECN or Active Trading Aggregator GUI/workflow design, EOMS or algorithmic execution, FX data and analytics
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