Top Tech Jobs & Startup Jobs in Montreal

Lead the technical vision and architecture of Coinbase’s FinHub financial infrastructure, including ledger, account balances, money movement, settlements, transfers, and transaction history. Drive distributed-system rearchitecture with double-entry accounting, idempotency, reconciliation, auditability, and resilient failure recovery. Lead cross-team initiatives, migrations, and technical strategy while partnering with product, finance, risk, compliance, and operations stakeholders. Mentor senior engineers and promote operational excellence and maintainability.

Build AI-driven security scanners and automation for vulnerability discovery, triage, validation, and remediation. Red team internal AI systems through jailbreak, prompt injection, and tool abuse testing. Partner with engineering teams to remediate vulnerabilities, verify fixes, and improve bug bounty and incident response workflows. Mentor junior security engineers on AI-augmented offensive security practices.

Lead design and delivery of backend risk systems to detect and prevent fraud, manage credit and market risk, and protect users. Drive architecture for distributed, high-availability services, partner with Data Science/ML and product teams, build AI-native detection and response systems, mentor engineers, own operational excellence, and lead incident response and post-mortems.

Build and scale distributed backend services for growth infrastructure (notifications, referrals, targeting, lifecycle communications, ML ranking). Design resilient service-oriented systems on cloud, ship well-tested production code, run growth experiments/A-B tests, improve developer tooling and shared platform capabilities, and collaborate cross-functionally to deliver measurable acquisition and retention impact.

Lead technical strategy and architecture for Coinbase Payments: design and evolve high‑availability, low‑latency funds‑flow and rails systems, drive cross‑team initiatives and reliability improvements, enforce financial correctness, mentor senior engineers, and align stakeholders across product, risk, and compliance.

Build and extend smart contracts and backend services for issuance, minting, burning, reserve accounting, and rewards for custom USDC-backed stablecoins. Implement onboarding, reporting, monitoring, and internal tooling, collaborate with cross-functional teams, and write well-tested production code across backend and on-chain surfaces.

Lead global GL operations and intercompany accounting, own month‑end and quarter‑end close, manage intercompany billing, FX, eliminations and transfer pricing. Drive SOX‑compliant controls, ERP/NetSuite enhancements, M&A integrations and new entity setups. Partner with Tax, Treasury, Legal and Finance Data and mentor direct reports to scale financial infrastructure.

Lead design and delivery of reliability projects for Coinbase's platform: secure service configuration and secrets management, improve canary-based deployments, partner with core services to increase scalability and reduce incidents, drive reliability best practices, and participate in on-call rotations.

Own preparation, review, and submission of recurring Canadian regulatory filings; maintain parallel IFRS books, reconciliations, and capital adequacy reporting; drive monthly management and board-level financial analysis; partner with Tax, Treasury, Legal and vendors; build scalable reporting processes, automation, and internal controls; serve as Finance's primary contact for regulators and examinations.