Software Engineer | Propr.xyz

As a Software Engineer at Propr.xyz, you build backend services for an operating system designed for prop firms. Propr.xyz helps prop firms leverage blockchain technology and perpetual futures on Hyperliquid, prediction markets, and spot assets. You ship features end to end and contribute to real-time infrastructure serving the largest prop firms globally.

What you'll do

• Design and implement backend services across the trading domain
• Own features end to end: schema, API, tests, and UI integration
• Contribute to real-time infrastructure and client-facing APIs
• Write integration tests against real dependencies

What you bring

• 5+ years of production backend experience
• Strong TypeScript or other strongly typed language background
• Experience with trading systems, financial infrastructure, or exchange-adjacent domains
• Knowledge of distributed systems and transaction semantics
• Proficiency with a modern Node.js backend framework (NestJS preferred; Spring, FastAPI, or similar acceptable)
• Production SQL experience and familiarity with a production ORM, preferably TypeORM
• Understanding of arbitrary-precision decimal arithmetic in financial contexts
• An integration-first testing discipline
• Ability to ship React or Next.js features to completion

Nice to have

• Event sourcing experience
• Crypto exchange experience
• Direct experience with major exchange APIs (REST and WebSocket)
• AWS (ECS, Aurora, ElastiCache, etc.) and Terraform
• Monorepo tooling such as Turborepo or Nx
• KYC and compliance workflow experience
• Crypto native background

About Propr.xyz

Propr.xyz is building an operating system for prop firms that leverages blockchain technology to increase efficiency. The platform enables prop firms to access perpetual futures on Hyperliquid, prediction markets, and spot assets, and is actively deployed with the world's largest prop firms.