Cashen : Quality Assurance Automation Engineer

About the role

You own quality and test automation at Cashen. You will build the QA infrastructure from the ground up — automated test suites, CI integration, regression coverage, and release validation — for a platform where bugs have financial consequences.

Responsibilities

• Build the automated test suite from scratch: integration and end-to-end coverage across backend APIs and frontend application
• Design test frameworks for financial logic validation — interest accrual precision, state machine transition completeness, margin call trigger accuracy
• Integrate automated tests into CI/CD pipelines so that every pull request and deployment is validated before reaching production
• Build and maintain test data fixtures and environment management for repeatable, isolated test execution
• Own the release validation process — define what "release-ready" means and enforce it
• Collaborate with engineers during development to identify testability gaps and advocate for testable architecture
• Extend test coverage to DAML smart contracts and on-chain/off-chain integration as the platform moves to Canton

Requirements

• 3-5 years in QA engineering or test automation, with experience building test infrastructure — not just running manual test plans
• Strong TypeScript and JavaScript proficiency — the backend is NestJS, the frontend is React, and your test tooling must integrate with both
• Experience with API testing, integration testing, and end-to-end test frameworks (Playwright, Cypress, Jest, or equivalent)
• Background in fintech, financial services, or any system where numerical precision and state machine correctness matter
• Familiarity with CI/CD pipelines — you will wire automated tests into the deployment process
• Comfortable reading and reasoning about financial logic: interest calculations, LTV thresholds, settlement sequences, and multi-party deal flows

Benefits

• Build from zero: You design the entire QA infrastructure for an institutional financial platform
• Real financial stakes: Your work directly protects institutional counterparties from incorrect deal execution
• Canton ecosystem: Backed by Ergonia and Cumberland, with direct access to Canton Foundation and ecosystem partners
• Bright future: Lean team, high leverage, fast-paced — every test you write guards real capital. Quality is not an afterthought here