Senior Java, C#, React & Calypso engineers, Calypso BA/PO
Vistulo · (Poland or Romania) · posted Oct 2, 2026
Open to candidates in Poland and Romania
You apply on the company's own site. We never charge to apply.
What this role actually asks for
Extracted by RemoteHuntMust have
- •Java, C#, React, or Calypso experience
- •Experience with trading systems
- •Experience with capital markets clients
- •Remote work from Poland or Romania
- •Overlap with US Eastern hours
Nice to have
- •Microsecond-latency OMS/order routing
- •FX, fixed income experience
- •Calypso v17+
- •IR & credit derivatives
- •RFQ experience
Tools and technologies
The full posting
Vistulo | Senior Java, C#, React & Calypso engineers, Calypso BA/PO | REMOTE (Poland or Romania) | B2B contract, pay ranges below Vistulo hires engineers in Poland to work on trading systems for capital-markets clients. All roles below are with a top North American bank: actively developed front-office systems (algorithmic order management and routing, FX, fixed income, and one of the largest Calypso deployments in the world).
You work alongside the original engineering team in North America and Europe. This is core product work, not legacy support. Long-term and fully remote, with overlap with US Eastern hours (6h for the trading roles; some roles work full ET hours for the first ~2 months of onboarding). - Senior Java Trading Systems Engineer (microsecond-latency OMS/order routing, equities/options/FX), 270–300 PLN/hr, remote from Poland or Romania: https://ats.vistulo.com/roles/253cbd69-1019-4547-93b6-6ef8db... - Senior C# Trading Systems Engineer (.NET, FIX, low-latency, 7+ yrs), 250–280 PLN/hr, remote from Poland or Romania: https://ats.vistulo.com/roles/a7986cb1-7531-4376-9f07-8dfa11... - Calypso Developer (Java, FX, fixed income), remote from Poland or Romania, 240–270 PLN/hr: https://ats.vistulo.com/roles/0b4668c6-525e-4d41-8c6a-f6a8b2... - Java Backend Engineer (event-driven distributed systems, 6+ yrs), 220–240 PLN/hr, remote from Poland or Romania,: https://ats.vistulo.com/roles/64866447-8224-49ab-b655-5c2f89... - Senior React Frontend Developer (React/TypeScript, fixed income trading flows, RFQ a plus), 220–250 PLN/hr, remote from Poland or Romania,: https://ats.vistulo.com/roles/1f5cb00f-791b-4491-a189-32a272... - Business Analyst / Product Owner, Calypso (Calypso v17+, IR & credit derivatives, back office), 200–240 PLN/hr, remote from Poland or Romania: https://ats.vistulo.com/roles/54c7dcf3-d40a-4d1f-8073-ee99c6...
Apply via the links above. Questions: contact@vistulo.com.
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