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| Job Position | Company | Posted | Location | Salary | Tags |
|---|---|---|---|---|---|
Solana | New York, NY, United States | $140k - $180k | |||
Referment | New York, NY, United States | $175k - $250k | |||
zerohash | Chicago, IL, United States | $105k - $163k | |||
Revenue3 | New York, NY, United States | $185k - $225k | |||
a16z | Menlo Park, CA, United States |
| |||
Tether Operations Limited | Barcelona, Spain | $105k - $120k | |||
Tether Operations Limited | Warsaw, Poland | $105k - $120k | |||
StablR | 04 Birkirkara MT | $84k - $115k | |||
Zscaler | Remote | $175k - $250k | |||
Zscaler | Remote | $119k - $170k | |||
Zscaler | Remote | $140k - $200k | |||
Zscaler | Remote | $147k - $210k | |||
Zscaler | Remote | $92k - $120k | |||
Zscaler | Remote | $182k - $260k | |||
Zscaler | Remote | $63k - $77k |
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