SwissBorg
Software Engineer | Propr.xyz
TLDR
Join a fast-paced team at Propr.xyz developing innovative blockchain solutions for prop firms, leveraging cutting-edge technologies to enhance trading efficiencies.
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.
- 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.
- 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 workflows.
- Crypto native.
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.
POST
Request body:
{
"roleSlug": "software-engineer",
"name": "Your Name",
"email": "[email protected]",
"link": "https://github.com/yourprofile",
"coverNote": "Why Propr?",
"exceptionalNote": "What makes you exceptional?",
"telegramHandle": "@yourhandle",
"appUid": "optional-trading-terminal-uid"
}
SwissBorg builds a dynamic investment platform that empowers individuals to reshape their understanding of wealth. Catering to over 880,000 verified users, the app offers optimal pricing and liquidity in 15 fiat currencies for trading over 300 cryptocurrencies, enabling users to earn yield, diversify with themed bundles, and access exclusive investment insights.
- Founded
- Founded 2017
- Employees
- 1-10 employees
- Industry
- Internet Software & Services
Software Engineer