Web3 Fullstack Engineer
Xsolla, Serbia
What you will do
Build Seamless Web2 ↔ Web3 Integration – Design and ship the flows that let users move between traditional accounts/payments and on-chain wallets without friction: custodial and non-custodial wallets, account abstraction, gasless transactions, and fiat on-ramps.
Own the Digital Item Lifecycle – Build the systems behind item mint, ownership, transfer, trading, and redemption — keeping on-chain state and off-chain records consistent, auditable, and fast.
Develop Fullstack Features – Deliver end to end across wallet-connected frontends, backend services, and the smart contract / indexing layer that powers item ownership and turnover.
Model Items & Ownership – Design data models and APIs that represent items uniformly whether they live off-chain, in a custodial wallet, or on-chain, and keep them in sync.
Ensure Reliability of Value Flows – Anything that moves items or money must be correct under failure: idempotency, reconciliation, replay safety, and clear recovery paths.
Integrate Blockchains & Marketplaces