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| Job Position | Company | Posted | Location | Salary | Tags |
|---|---|---|---|---|---|
Nifty Gateway Studio | New York, NY, United States | $90k - $120k | |||
Lazer | Canada | $175k - $180k | |||
Crypto Finance AG | Zurich, Switzerland | $72k - $82k | |||
ChainGPT | Remote | $22k - $75k | |||
Bitso | United States | $85k - $100k | |||
Amlrightsource | Gurgaon, India | $81k - $112k | |||
Mastercard | Mexico City, Mexico | $74k - $98k | |||
Wmg | London, United Kingdom | $72k - $75k | |||
solflare | Zagreb, Croatia | $27k - $45k | |||
Statestreet | Boston, MA, United States | $91k - $102k | |||
Zscaler | Remote | $140k - $200k | |||
Zscaler | Remote | $115k - $165k | |||
Token Metrics | Austin, TX, United States | $45k - $72k | |||
Zscaler | Remote | $130k - $131k | |||
Zscaler | Remote | $79k - $85k |
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