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| Job Position | Company | Posted | Location | Salary | Tags |
|---|---|---|---|---|---|
Gemini | New York, NY, United States | $140k - $200k | |||
Gemini | New York, NY, United States | $192k - $275k | |||
Gemini | New York, NY, United States | $192k - $275k | |||
Robinhood | Menlo Park, CA, United States | $170k - $200k | |||
Aave Labs | New York, NY, United States | $125k - $145k | |||
Zircuit | Remote |
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Aave Labs | London, United Kingdom | $72k - $110k | |||
Aave Labs | London, United Kingdom | $130k - $150k | |||
Good Labs | Remote | $60k - $72k | |||
Superstate | New York, NY, United States | $90k - $99k | |||
Immutable | Australia | $91k - $97k | |||
Crypto.com | Hong Kong, Hong Kong | $68k - $90k | |||
Crypto.com | Shanghai, China | $68k - $90k | |||
Crypto.com | Singapore, Singapore | $68k - $75k | |||
Crypto.com | Cyprus |
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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