Blockchain Backend Engineer for Institutional Crypto Custody

DMG Blockchain Solutions

Canada

On-site

CAD 90,000 - 150,000

Full time

6 days ago

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Job summary

DMG Blockchain Solutions is building a financial technology platform for institutional clients to manage fiat accounts and digital-asset custody wallets. We seek a backend-focused Software Engineer with Blockchain Exposer who can work across our NestJS API, Next.js portal, and supporting services.

You will help evolve from third-party custody toward our own signing infrastructure, work with TypeScript, PostgreSQL, and secure cryptographic components, and contribute to reliable, production-grade

Qualifications

4+ years of professional software engineering experience.
Strong TypeScript and Node.js skills.
Experience with production web apps and backend APIs.
Familiarity with relational databases and transactions.
Ability to design asynchronous, reliable workflows.
Secure API design and RBAC understanding.

Responsibilities

Build and maintain features across NestJS API, Next.js portal and services.
Design custody workflows with third-party providers and future internal signing infrastructure.
Evolve transaction system to policy-controlled intents.
Implement approval workflows, receipts, segregation of duties and transaction limits.
Manage custody-space, keyset, wallet-address and key lifecycle.