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| Job Position | Company | Posted | Location | Salary | Tags |
|---|---|---|---|---|---|
Copperco | Remote | $68k - $90k | |||
ETHGlobal | Remote | $140k - $180k | |||
Cryptio | United Kingdom | $87k - $150k | |||
Coinhako | Vietnam | $64k - $102k | |||
Coinhako | Vietnam | $90k - $95k | |||
Bitpanda | Remote | $90k - $108k | |||
Bitpanda | Remote | $88k - $117k | |||
Burkland Associates | United States | $90k - $130k | |||
Bitmex | Remote | $115k - $138k | |||
asymmetric.re | Remote | $88k - $95k | |||
asymmetric.re | Remote | $81k - $92k | |||
Polymarket | United States | $111k - $119k | |||
Aztec | New York, NY, United States | $62k - $75k | |||
Alpaca | Remote | $32k - $58k | |||
Alpaca | Remote | $13k - $48k |
SwapRail
Remote
Design and build the core backend systems powering SwapRail, including APIs, routing engines, execution services, and data pipelines.
## Responsibilities
- Design and implement scalable backend services and APIs
- Build routing and aggregation logic for swap execution across multiple liquidity sources
- Integrate on-chain and off-chain data sources (RPC nodes, indexers, third-party APIs)
- Develop simulation and validation layers for transaction execution
- Optimize system performance for low-latency and high-throughput scenarios
- Design data models for quotes, routes, transactions, and execution states
- Implement monitoring, logging, and observability across services
- Collaborate with wallet and frontend teams to ensure consistency in execution flows
## Requirements
- Strong experience with Node.js / TypeScript / Go / Rust
- Experience building high-performance backend systems
- Strong understanding of asynchronous systems and concurrency
- Experience with PostgreSQL and data modeling
- Familiarity with microservices architecture and distributed systems
- Experience integrating blockchain data or Web3 systems
## Nice to Have
- Experience with DeFi protocols or aggregators (1inch, 0x, Uniswap)
- Experience building trading or execution systems
- Experience with blockchain indexing (The Graph, custom indexers)
- Understanding of MEV, routing optimization, and slippage control
- Experience with caching layers (Redis) and performance optimization