Staff Software Engineer - Blockchain Wallet Architect

Xsolla Inc.; United States; Remote; USD 120,000 - 160,000; Full time

Job summary

Xsolla Inc. is seeking a senior engineer to own the technical strategy and architecture of its scalable smart wallet platform. You will shape account models, signing flows, session management, and gas abstraction to support a large player base.

In this role, you will design and evolve ERC-4337, EIP-7702, session keys, and permission primitives to deliver secure, non-custodial on-chain accounts. You’ll drive cross-team decisions and establish engineering standards while handling complex

Responsibilities

• Own the technical strategy and architecture of Xsolla's smart wallet platform, covering account model, signing, session management, and gas abstraction at scale.
• Design and evolve ERC-4337, EIP-7702, session keys, and permission primitives so millions of players get a secure, non-custodial on-chain account.
• Drive cross-team decisions, set engineering standards, and serve as the escalation point for complex production wallet issues.

Job description

Xsolla Inc. is seeking a senior engineer to own the technical strategy and architecture of its scalable smart wallet platform. You will shape account models, signing flows, session management, and gas abstraction to support a large player base.

In this role, you will design and evolve ERC-4337, EIP-7702, session keys, and permission primitives to deliver secure, non-custodial on-chain accounts. You’ll drive cross-team decisions and establish engineering standards while handling complex