Software Engineer

This is a fully remote position, open to applicants in Russia.

📋 Description

• Develop backend services using Go and TypeScript for chain indexing, transaction relaying, event processing, and APIs tailored for dApps and SDKs.

• Create infrastructure backend services to facilitate the tokenization of in-game items and currencies.

• Construct dApp frontends utilizing React, encompassing wallet connections, transaction signing, and displaying on-chain states within the UI.

• Incorporate smart wallets into products, including features such as accounts, paymasters, and bundlers.

• Design and develop SDKs utilized by game studios and partners.

• Monitor production services and contracts, participating in the on-call rotation as needed.

• Conduct code reviews to maintain quality standards.

• Establish and manage AI tooling within repositories.

• Take ownership of features across backend, frontend, and production, ensuring comprehensive development.

• Oversee on-chain/off-chain product architecture and document technical decisions made.

• Guarantee the security and accuracy of signing flows, user-asset contracts, keys, and secrets.

⛳️ Requirements

• Over 5 years of experience in commercial software development.

• Senior-level expertise in production across both backend and frontend environments.

• Proven track record of deploying and maintaining dApps in production.

• Hands-on experience with viem and wagmi in a production setting.

• Familiarity with wallet signers, EOAs, browser and embedded wallets, smart accounts, personal_sign, EIP-191, EIP-712, EIP-1193, and network switching.

• Practical knowledge of smart wallets, UserOperations, paymasters, and ERC-1271.

• Experience in delivering production services using Go and TypeScript (Node.js).

• Proficiency in processing on-chain events, including handling idempotency, reorganization, and retries.

• Background in asynchronous messaging and event-driven design, utilizing tools such as Kafka, RabbitMQ, or NATS.

• Experience with PostgreSQL and Redis databases.

• Skills in designing REST and gRPC APIs.

• Knowledge of React and TypeScript frameworks.

• Understanding of web security principles, including XSS, CSRF, and CSP.

• Ability to comprehend Solidity contracts and the workings of the EVM.

• Awareness of smart contract vulnerabilities, such as reentrancy, front-running/MEV, oracle manipulation, and signature replay.

• Experience with Docker and Kubernetes environments.

• Familiarity with observability tools like Datadog or similar platforms.

• Experience with unit, integration, and end-to-end testing methodologies.

• Proficient in Git and CI/CD processes.

• Regular hands-on engagement with AI coding tools such as Claude Code, Codex, or Cursor.

• Proficient spoken English at a B2 level or higher.

🏝️ Benefits

• Comprehensive medical, dental, and vision coverage.

• Paid Time Off (PTO).

• Customized career roadmap for each employee.

• Opportunities for training and professional development.

• Flexible working schedule.

• Employment agreement facilitated through an entity or EOR based on candidate location.