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| Job Position | Company | Posted | Location | Salary | Tags |
|---|---|---|---|---|---|
Coinmetrics | Boston, MA, United States | $84k - $119k | |||
Coinmetrics | Boston, MA, United States | $140k - $180k | |||
Coinmetrics | Boston, MA, United States | $140k - $180k | |||
Bitpanda | Vienna, Austria | $79k - $79k | |||
Chainlink Labs | Remote |
| |||
Bitmex | Singapore, Singapore | $87k - $150k | |||
Anchorage Digital | United States | $68k - $90k | |||
Avalabsecosystem | Remote | $172k - $215k | |||
Hyphenconnect | EMEA | $81k - $96k | |||
Hyphenconnect | APAC | $89k - $164k | |||
Hyphenconnect | NAMER | $45k - $75k | |||
Hyphenconnect | EMEA | $54k - $105k | |||
Tomo | Remote | $44k - $58k | |||
Impossible Cloud | Hamburg, Germany |
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Chainlink Labs | Remote |
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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