Software Engineer | Propr.xyz

SwissBorg·Remote - Europe TimezoneRemotesenior

In short

→Desarrollar servicios backend para un sistema operativo de firmas de trading usando blockchain.
→Trabajar en tiempo real, APIs y pruebas integradas, desde el diseño hasta la UI.
→Destacan clientes globales de trading y tecnología cripto avanzada.

We ask candidates to submit their application via a POST request to our API.

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What they ask for

✓5+ años en backend en producción.
✓Fuerte experiencia en TypeScript o lenguaje fuertemente tipado.
✓Experiencia con sistemas de trading, fintech o exchange.
✓Conocimiento en sistemas distribuidos y transacciones.
✓Familiaridad con Node.js (NestJS preferido) y TypeORM.
✓Manejo de precisión arbitraria en operaciones financieras.

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TypeScriptNode.jsNestJSSpringFastAPISQLTypeORMAWSECSAurora

Who should you write to at SwissBorg?

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Propr.xyz is building a new Operating System for prop firms, helping them leverage blockchain technology to make them more efficient. We enable prop firms to leverage perpetual futures on Hyperliquid, prediction markets, and spot assets. We are actively deploying our technologies to the largest prop firms in the world. The pace is intense, but the journey is exciting. We only hire A-players. You need to be exceptional. Responsibilities Design and implement backend services across the trading domain. Own features end to end: schema, API, tests, UI integration. Contribute to real time infrastructure and client facing APIs. Write integration tests against real dependencies. Requirements 5+ years production backend experience. Strong TypeScript or other strongly typed language background. Experience with trading systems, financial infrastructure, or exchange adjacent domains. Distributed system and transaction knowledge. js backend framework (NestJS preferred; Spring / FastAPI / similar acceptable). SQL and a production ORM (preferably TypeORM). Arbitrary precision decimal arithmetic in financial contexts. Integration first testing discipline. js features to completion. Bonus Event sourcing experience. Crypto exchange experience. Direct experience with major exchange APIs (REST + WebSocket). ), Terraform. Monorepo tooling (Turborepo, Nx). KYC / compliance workflows. Crypto native. How to apply We ask candidates to submit their application via a POST request to our API. This helps us identify candidates who read job descriptions carefully and have basic technical skills.

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