Crypto Architect

About Us

What You'll Do

Key Responsibilities

• **System Design & Orchestration:** You will design the asynchronous event-driven architecture that bridges the synchronous world of Fiat banking (Golang core) with the asynchronous reality of Virtual Assets on Blockchains.
• **Documentation**: you document the crypto architecture. From business capabilities to business processes and business objects to microservices, event processing and our data lake. You document architectural decisions (ADRs). You ensure that everybody understands and works with the architecture, from Product Management to developers and devops engineers.
• **High-Load Optimization:** Analyze and optimize the throughput of crypto-processing microservices. You will define strategies for transaction batching, gas fee estimation, and UTXO management to ensure the system handles thousands of requests per second without clogging.
• **Node Infrastructure Strategy:** Manage the decision-making process between running self-hosted nodes on AWS versus utilizing external RPC providers (Infura/Alchemy/QuickNode) to ensure 99.99% uptime for wallet balances and transfers.
• **Cross-Team Alignment:** Act as the technical translator between the multiple teams. You will ensure that API contracts (gRPC/Protobuf) are strictly defined and that data consistency is maintained across both ledgers.
• **Security Architecture:** Oversee the implementation of hot/warm/cold wallet structures. You will design fail-safes for signing services to prevent unauthorized withdrawals or "fat finger" errors.
• **Code Review & Mentorship:** Dive into the TypeScript and Golang codebases to enforce adherence to architecture, code quality, code security and availability requirements. You will mentor developers on how to handle edge cases like chain reorgs, dropped transactions, or sudden gas spikes.

Requirements

• **Architectural** **Patterns**: Deep experience designing microservices architectures, specifically using Event-Driven Design. You must understand how to use message brokers (Kafka or AWS MSK) to handle the asynchronous nature of blockchain confirmations.
• **Node**.**js** / **TypeScript** **Mastery**: 5+ years of server-side development. You are an expert in Node.js internals, event loops, memory management, and TypeScript. You know how to build services that do not crash under high load.
• **Golang** **Proficiency**: proficiency in Golang. While you may not write the core banking ledger, you must be able to read the code, understand its concurrency models (Goroutines), and design gRPC interfaces that the Go team can consume easily.
• **Database** **Design**: Strong grasp of PostgreSQL for immutable ledgers and Redis/DynamoDB for high-speed caching and state management. You understand ACID compliance and how to achieve it in a distributed system.
• **Blockchain Mechanics:** Deep understanding of how EVM chains (Ethereum, BSC, Polygon) and UTXO chains (Bitcoin, Litecoin) function. You understand block times, finality, reorgs, and mempool dynamics.
• **Security Standards:** Experience implementing Multi-Party Computation (MPC) wallet architecture or integrating HSM (Hardware Security Module) solutions.
• **Smart Contract Literacy:** Ability to read and understand **Solidity** contracts (ERC-20, ERC-721 standards) to ensure our systems interact with them safely, even if you aren't deploying them daily.

Start-up Benefits

• Compensation: A highly competitive salary package that recognizes your expertise and contribution.
• Modern Work Culture: Embrace a remote-first environment with flexible working hours, designed to support your work-life harmony.
• Generous Time Off: Annual Leave- 24 days, dedicated paid sick leave, and Public Holidays.
• Professional Evolution: Grow your skills with a dedicated learning budget and clear pathways for accelerated career development.
• Meaningful Impact: Join a world-class team building a prestigious, next-generation modern money platform that is redefining the future of finance.