Staff Software Engineer – Smart Wallet, Account Abstraction

🕒 Outubro 2

🇨🇦 Canadá – Remoto

⏰ Tempo Integral

🔴 Especialista

🧑‍💻 Engenheiro Full-stack

👻 Score fantasma 20%

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• Aberta há 41 dias.
• As vagas desta empresa costumam ser preenchidas em 51 dias.
• Sem salário divulgado.

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Xsolla

SiteLinkedInTodas as Vagas

201 - 500 funcionários

Fundada em 2005

💼 Consultoria

📣 Marketing

📦 Logística

Consulting • Marketing • Logistics

A Xsolla é uma empresa especializada em soluções de comércio para games. Ela oferece ferramentas e serviços que capacitam desenvolvedores de games a monetizar, distribuir e financiar seus títulos, ajudando a aumentar a receita em qualquer estágio do desenvolvimento. A Xsolla disponibiliza um amplo portfólio de soluções, como lojas online personalizáveis, processamento de pagamentos, prevenção a fraudes e pacotes sociais para elevar o engajamento dos jogadores. Com mais de 19 anos de experiência na indústria de games, a Xsolla colabora com desenvolvedores e publishers globalmente para gerenciar compliance, tributos e complexidades operacionais, permitindo que foquem em se conectar com seus jogadores. Seus serviços foram projetados para funcionar com plataformas populares de desenvolvimento, como Unity, Unreal e Cocos Creator, oferecendo suporte a uma ampla variedade de métodos de pagamento locais no mundo todo.

Descrição

• Own the technical strategy and architecture of Xsolla's smart wallet platform, including account model, signing, session management, and gas abstraction • Design and evolve the ERC-4337 UserOperation lifecycle, EIP-7702 delegation, deterministic identity-based address derivation, session keys, and permission primitives • Set paymaster and gas-sponsorship strategy, including metering, caps, abuse prevention, and fallback behavior • Own security for the dApp-facing signer surface, including provider behavior, origin-bound sessions, trust tiers, and transaction/signature confirmation • Lead custody and recovery roadmap, including MPC-based custody, passkeys, guardians, and social recovery • Drive cross-team decisions on account architecture, SDK contracts, data modeling, and platform reliability • Identify and resolve systemic risks involving key management, phishing, reorgs, indexer staleness, bundlers, RPC dependencies, and contract upgrades • Define engineering standards, review critical code/contracts/designs, and provide documentation, tooling, and mentorship • Collaborate with engineering, product, security, legal, and infrastructure stakeholders • Serve as escalation point for complex production wallet and account-abstraction issues • Own the smart wallet and account abstraction layer for Xsolla's Web3 platform, including Xsolla ZK and the wallet embedded in Xsolla App

🎯 Requisitos

• Deep, hands-on understanding of ERC-4337, including EntryPoint v0.6–v0.8, UserOperation lifecycle, bundlers, paymasters, ERC-7562, gas estimation, counterfactual deployment, and ERC-6492 • Working knowledge of EIP-7702 and its risks • Experience building on or extending production smart account implementations such as Safe, Kernel, Biconomy, or Coinbase Smart Wallet • Experience designing session keys, delegated permissions, origin binding, revocation, and ERC-7710/ERC-7715 • Practical command of EIP-712, ERC-1271, WebAuthn/passkeys, EIP-1193, EIP-6963, EIP-5792, and ERC-7677 • Experience designing or operating a production smart wallet or account abstraction system serving real users and real value • Substantial engineering experience at a large crypto product or protocol organization or comparable wallet, exchange, or account-abstraction infrastructure team • Experience operating systems where bugs could cause lost funds, with concrete guardrails, reviews, and rollback paths • Ability to read, review, and write Solidity account, paymaster, and module contracts • Gas-aware design, upgradeability and migration patterns, and experience with external auditors • Understanding of L2 execution differences, zkSync-family chains, transaction and fee models, finality, reorgs, RPC, and indexer semantics • Strong Go engineering skills, including idiomatic code, concurrency, and performance profiling • Ability to design and own TypeScript client-side SDK surfaces • Distributed systems experience and understanding of consistency, availability, and failure modes • PostgreSQL schema design, query optimization, and large-scale migrations • Kubernetes deployment, operations, and debugging • Kafka or NATS and event-driven messaging patterns • Git and modern CI/CD practices • Production key-management experience with Keychain/Keystore, HSMs, MPC, or threshold signing • Solid wallet threat-modeling knowledge • Proven ability to lead multi-quarter technical initiatives across teams • Track record of influencing architecture and standards beyond the immediate team • Strong written and verbal communication; ability to write effective RFCs and design documents

🏖️ Benefícios

• Full-time employment • Remote work in Canada

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