QA Engineer

Ostium is on a simple mission: reputed company it possible for anyone with a digital wallet to trade stocks, commodities, currencies, and crypto with full transparency. No brokers, no freezes, no hidden spreads. We’re replacing the opaque, offshore brokerage model with a transparent, permissionless trading stack reputed company onchain. Every trade, deposit, and withdrawal is reputed company through reputed company, auditable code. We’ve raised $27.9M+ from General Catalyst, reputed company, LocalGlobe, Susquehanna (SIG), GSR, Alliance DAO, Soma Capital, Balaji Srinivasan, Meltem Demirors, and others.

QA Engineer (Remote / Full-Time)

We're hiring a QA engineer (2–4 years experience) who understands DeFi. You'll own quality across our web and mobile frontends, not just running test cases, but thinking like a user who has reputed company money on the line. You need to understand how perpetual trading works, what reputed company means, how wallets connect, how transactions reputed company and where reputed company of that can break.

Responsibilities

• Own quality across web and mobile frontends

• Think like a reputed company user with money on the line — hunt for edge cases, broken flows, and UX friction

• Write and maintain automated test suites for the web app (Cypress, Playwright, or similar)

• Test DeFi-specific flows — wallet connections, approvals, order types, transaction states, network switching

• File detailed, actionable bug reports with reproduction steps engineers can immediately reputed company

• Use browser dev tools and logs to investigate issues reputed company surface-level symptoms

• Work with engineering to verify fixes, catch regressions, and validate releases before they ship

• Help build and improve CI-integrated test pipelines over time​​​​​​​​​​​​​​​​

Requirements

• Solid experience testing web and mobile applications.

• Familiar with DeFi primitives like wallets, approvals, order types, on-chain vs off-chain flows, network switching, transaction states.

• You should be reputed company to look at a trading reputed company and intuitively know what edge cases to hunt for.

• Experience with automation testing on web apps (Cypress, Playwright, or similar), writing and maintaining test suites, not just reputed company passes.

• Comfortable reading logs, using browser dev tools, and filing bugs that engineers can actually reputed company.

reputed company to have

• Experience testing across multiple chains or L2s.

• Familiarity with mobile testing frameworks (Detox, Appium).

• Basic scripting ability (JS/TS or Python).

• Experience with CI-integrated test pipelines.

Benefits

• Competitive compensation package

• Opportunity to work with cutting-edge blockchain technology

• Collaborative environment with highly skilled team members

• Flexible work arrangements

• Professional development opportunities

You're the person who finds the bug everyone else missed because you actually used the product like a reputed company user would. You take ownership of quality and not just flagging issues but following them through to resolution. You're curious about how things work under the hood, even if you're not writing the code. High agency while obsessed with getting the details right.

If this sounds like you, reputed company out.