Senior Blockchain Engineer (Web3 Gaming Infrastructure)

About One More Game

One More Game is building the next generation of blockchain-powered gaming experiences. We are creating Web3 infrastructure that enables digital ownership, blockchain-based economies, and seamless player experiences.

We are looking for a Senior Blockchain Engineer to design and build the infrastructure connecting blockchain networks, smart contracts, wallets, backend services, and game systems.

This role is ideal for an engineer who enjoys solving complex Web3 architecture challenges and wants to build production-level blockchain systems that impact real users.

Role Overview

As a Senior Blockchain Engineer, you will take ownership of core blockchain infrastructure and work closely with smart contract engineers, backend developers, game developers, and product teams.

You will help design scalable Web3 systems, improve blockchain integrations, and build reliable infrastructure supporting game assets, token systems, transactions, and decentralized features.

Responsibilities

• Design and develop blockchain infrastructure for Web3 gaming products.
• Build integrations between smart contracts, wallets, backend services, and game platforms.
• Develop secure on-chain/off-chain data flows and transaction systems.
• Build blockchain data indexing, event processing, and monitoring systems.
• Improve scalability, reliability, and security of Web3 infrastructure.
• Work with blockchain APIs, SDKs, and developer tools.
• Collaborate with engineering and product teams to deliver production-ready blockchain features.
• Participate in architecture discussions, code reviews, testing, and deployment processes.

Requirements

• 3+ years of software engineering experience with blockchain development experience.
• Strong understanding of blockchain architecture, transactions, wallets, and Web3 concepts.
• Experience building blockchain applications or decentralized systems.
• Strong experience with JavaScript/TypeScript, Node.js, or backend development frameworks.
• Experience integrating smart contracts with applications and backend services.
• Understanding of APIs, databases, distributed systems, and event-driven architectures.
• Ability to work independently and communicate effectively in a remote environment.

Preferred Qualifications

• Experience building GameFi, NFT, or blockchain gaming infrastructure.
• Experience with Ethereum-compatible networks and Layer 2 solutions.
• Experience with blockchain indexing tools and data platforms.
• Familiarity with bridges, cross-chain technologies, and blockchain interoperability.
• Experience with Web3 SDKs, wallet providers, and blockchain monitoring systems.
• Knowledge of Solidity and smart contract development.
• Experience designing token economies or digital asset systems.

Benefits

• Fully remote work environment with flexible working hours.
• Competitive USD-based compensation package.
• Opportunity to build real blockchain gaming infrastructure from the ground up.
• Ownership of important technical decisions from architecture to production deployment.
• Work with a global, remote-first Web3 engineering team.
• Career growth opportunities in blockchain and gaming technology.
• Performance incentives and potential equity/token opportunities.

Why Join One More Game?

Join us to build the future of blockchain gaming by creating scalable Web3 infrastructure, solving challenging technical problems, and shaping how players interact with digital ownership and decentralized economies.