Senior Software Engineer Team Lead (Blockchain Integration team) - OP02126-00

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# Senior Software Engineer Team Lead (Blockchain Integration team) - OP02126-00 > · Wrocław, Poland (Remote) · — · Posted [phone] **Workplace:** remote **Department:** OP ## Description 🟢 At , we work on projects that impact millions of people around the world — but we know it’s the people behind the tech who make it all happen. We truly value what makes each person unique and are building a workplace that’s inclusive, friendly, and supportive. We invite a Senior Software Engineer to join our team and help develop new components within a large-scale fintech data platform in the private markets domain. In this role, you’ll lead a team focused on integrating platform components with blockchain layers, working across a complex, multi-system environment. **🟩 What's in it for you:** - Work on a new component within an established fintech platform with 20+ internal services and 15+ external integrations - Work with blockchain systems and smart contract integrations in real-world applications - Lead technical decisions and guide a team of engineers in building complex systems end-to-end **✅ Is that you?** - 5+ years of backend and distributed systems development experience - Strong practical experience with blockchain-integrated systems and enterprise architecture design - Proven ability to define and deliver end-to-end blockchain architecture and integration strategy - Experience building stand-alone blockchain developer tools and SDKs - Experience shaping Layer 2 direction (rollups, sidechains, payment channels, where applicable) - Experience designing token-based access control and billing architecture - Experience with wallet and transaction lifecycle design for production systems - Experience with cross-chain integration and interoperability strategy - Strong focus on scalability, security, and cost efficiency of blockchain components - Experience building and operating microservices with multiple integrations - Strong experie

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