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Senior Backend Engineer - Cross-Chain Solver (Remote - EMEA) at Jobgether. This position is posted by Jobgether on behalf of a partner company. We are currently looking for a . Senior Backend Engineer - Cross-Chain Solver. in . EMEA. .. As a Senior Backend Engineer, you will design and develop the core infrastructure enabling fast, reliable, and cost-efficient cross-chain transactions. You will build high-performance systems that manage liquidity, execute transactions across multiple blockchain networks, and solve critical challenges in cross-chain interoperability. This role involves close collaboration with smart contract developers, data scientists, and engineering teams to optimize algorithms, improve system reliability, and ensure scalability. You will thrive in a fully remote, fast-paced environment with autonomy, the opportunity to mentor peers, and direct impact on innovative blockchain products used across multiple chains.. . Accountabilities:. Design, implement, and maintain a high-performance cross-chain solver for multiple blockchain networks.. Develop pricing, routing, and liquidity management algorithms to optimize transaction throughput and capital efficiency.. Build robust monitoring, alerting, and testing frameworks to ensure system reliability and security.. Collaborate with smart contract and front-end teams for seamless integration with on-chain protocols.. Maintain high coding standards, conduct code reviews, and ensure best practices for performance, maintainability, and security.. Optimize transaction execution logic balancing bid frequency, win rate, and system efficiency.. Act as a technical mentor and provide guidance on backend and algorithmic challenges.. . 5+ years of backend development experience, ideally in high-throughput systems.. Strong proficiency in . TypeScript. and frameworks like . NestJS. .. Solid background in data structures, algorithms, and statistical analysis.. Deep understanding of blockchain architecture, mempool dynamics, and transaction execution.. Experience with monitoring, observability tools, and caching solutions (e.g., Redis).. Strong system design and architecture skills with the ability to think at a high level.. Autonomy, problem-solving mindset, and ability to navigate ambiguity in a fast-paced environment.. Excellent communication skills and ability to provide and receive constructive feedback.. Nice to Haves:. Proficiency in Rust.. Experience building cross-chain solvers or similar trading systems.. Familiarity with cross-chain bridges, DEXs, or different blockchain VMs (EVM, SVM, Move).. . Company Location: Austria.