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Crypto Architect

UMO
Dubai, UAE
Full Time
Senior
7 months ago
Microservices ArchitectureEvent Driven DesignNode.jsTypeScriptGolangPostgreSQL
Free

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About Us

  • UMO is a stealth mode FinTech venture aiming to evolve the way people experience money by building a unified, AI powered, yet deeply human modern money platform across fiat, crypto, and investments.
  • We are currently developing our MVP and navigating licensing requirements, with a multidisciplinary team of 100+ people representing 20+ nationalities.
  • With our headquarters in the UAE and offices in Portugal and Ukraine, we are united behind a shared ambition and a relentless focus on serving our customers.

What You'll Do

  • As our Crypto Architect, you will sit at the intersection of our Core Banking capabilities (built in Golang and TypeScript on a highly scalable, asynchronous microservices architecture), Crypto rails and various blockchains and partners.
  • You won’t just be writing smart contracts; you will be designing the high throughput orchestration layer that allows our users to trade, stake, and hold assets securely at scale.
  • You will solve complex problems regarding non custodial vs. custodial setups, high RPS transaction indexing, and bridging asynchronous blockchain events with synchronous banking ledgers.

Key Responsibilities

  • System Design & Orchestration: 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: Document the crypto architecture from business capabilities to microservices and data lake. Document architectural decisions (ADRs).
  • High Load Optimization: Analyze and optimize the throughput of crypto processing microservices. Define strategies for transaction batching, gas fee estimation, and UTXO management.
  • Node Infrastructure Strategy: Manage decision making between self hosted nodes on AWS versus external RPC providers to ensure 99.99% uptime.
  • Cross Team Alignment: Act as technical translator between teams. Ensure API contracts (gRPC/Protobuf) are strictly defined and data consistency is maintained.
  • Security Architecture: Oversee implementation of hot/warm/cold wallet structures. Design fail safes for signing services.
  • Code Review & Mentorship: Dive into TypeScript and Golang codebases to enforce adherence to architecture, code quality, and security. Mentor developers on edge cases.

Requirements

  • Architectural Patterns: Deep experience designing microservices architectures using Event Driven Design. Must understand message brokers (Kafka or AWS MSK).
  • Node.js / TypeScript Mastery: 5+ years of server side development. Expert in Node.js internals, event loops, memory management, and TypeScript.
  • Golang Proficiency: Proficiency in Golang. Must be able to read code, understand concurrency models (Goroutines), and design gRPC interfaces.
  • Database Design: Strong grasp of PostgreSQL for immutable ledgers and Redis/DynamoDB for high speed caching and state management.
  • Blockchain Mechanics: Deep understanding of EVM chains (Ethereum, BSC, Polygon) and UTXO chains (Bitcoin, Litecoin). Understand block times, finality, reorgs, and mempool dynamics.
  • Security Standards: Experience implementing Multi Party Computation (MPC) wallet architecture or integrating HSM solutions.
  • Smart Contract Literacy: Ability to read and understand Solidity contracts (ERC 20, ERC 721 standards).

The UMO Standard

  • Dynamic Work Environment: Vibrant offices and strong local teams across Lisbon, Dubai, Kyiv, and Lviv — with openness to remote for the right fit.
  • Rest & Recovery: 24 days of annual leave, dedicated paid sick leave, and observance of Public Holidays.
  • Recharge Week: After your first year, enjoy two consecutive 4 day work weeks annually.
  • Full Setup: Top of the line hardware and a home office stipend.
  • Growth Ecosystem: Dedicated learning budget and clear path toward executive level leadership.
  • Impact & Ownership: Your work directly shapes the product and company direction.

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