Senior Backend Engineer – Finapps/Access
Fireblocks
Location: Warszawa, Masovian Voivodeship, Poland, Poland
**Senior Backend Engineer – Finapps/Access at Fireblocks in Warszawa, Masovian Voivodeship, Poland** **What you'll do** - Design and build scalable backend services for on-chain transaction flows - Own end-to-end development of backend components and APIs - Lead integrations with DeFi protocols and blockchain nodes - Optimize production systems for performance and reliability **What they're looking for** - 7+ years of experience as Backend or Full Stack Engineer - Bachelor of Science or equivalent degree/experience - Deep understanding of blockchain protocols and transaction lifecycles - Experience across multiple blockchain ecosystems **Details** - Location: Warszawa, Masovian Voivodeship, Poland - Type: Not specified - Salary: Not specified