Software Engineer | Propr.xyz

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.
• Modern Node.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.
• Able to ship React / Next.js features to completion.

Bonus

• Event sourcing experience.
• Crypto exchange experience.
• Direct experience with major exchange APIs (REST + WebSocket).
• AWS (ECS, Aurora, ElastiCache etc.), Terraform.
• Monorepo tooling (Turborepo, Nx).
• KYC / compliance workflow experience.