Job Type: Full-time

QA Engineer, Trading SystemsLocation: PuneExperience: 1 - 3 yearsEngagement: Full time, in-houseReports To: Head of Algo Trading / FounderAbout AJ AlgoAJ Algo runs a portfolio of automated trading bots across Forex (MT4/MT5), crypto exchanges, and equity/F&O; broker APIs. We build and operate systems that don't just generate trading signals, they execute them reliably, enforce risk discipline in code, and stay resilient around the clock. We're a small, hands-on team where engineering rigor and calibrated scepticism matter as much as trading performance.About the RoleYou will own quality across our trading infrastructure, where bugs don't just break a feature, they can cost real money. Your job is to make sure every order, every risk check, and every model deployment has been genuinely tried to break before it touches a live account.What You'll DoTest the full order lifecycle: signal generation, risk checks, order routing, fill confirmation, and position trackingValidate risk management logic: position sizing, daily loss limits, drawdown stops, and margin safeguards, including edge cases like non-USD-quoted symbols and correlated exposureTest failure scenarios explicitly: rejected orders, partial fills, requotes, slippage, disconnects, and stale pricesVerify reconciliation logic between bot-held positions and broker/exchange recordsTest across multiple venues (MT4/MT5, crypto exchange APIs, equity/F&O; broker APIs) and catch behaviour that doesn't generalise across themBuild and maintain automated test suites for money-touching code, including unit tests for risk calculationsTest monitoring and alerting: confirm the right severity triggers the right alert,



and that silent failures don't slip throughValidate ML model deployments: check that walk-forward or purged cross-validation was used correctly, and that shadow to small-allocation to full-allocation rollouts are gated properlyTest server and terminal recovery scenarios: restarts, reconnections, and failover, confirming positions are reconciled before new trading resumesLog clear, reproducible bugs with steps, expected versus actual, and evidenceOwn the release checklist and sign off before anything ships to a live trading accountMust-HavesManual testing fundamentals: test cases, regression suites, bug reportingHands-on automation experience (Playwright, Cypress, Selenium, or Python-based test frameworks like pytest)API testing and comfort reading JSON responses; experience with Postman or similarBasic SQL for verifying trade and position dataComfort with financial/numerical edge cases: rounding, lot sizing, tick values, and precision errorsAbility to work directly with developers rather than throwing bugs over a wallA conservative, sceptical mindset: comfortable blocking a release when something is ambiguous rather than assuming it's fineGood to HaveExperience testing trading systems, fintech, or other money-touching applicationsFamiliarity with MT4/MT5, crypto exchange APIs, or broker APIsUnderstanding of basic risk management concepts (position sizing, stop losses, margin, leverage)Experience testing ML model outputs where results aren't identical on every runRunning tests in a CI pipeline on every mergeBasic performance or load testing, especially around latency-sensitive execution pathsShare Your ResumeInterested candidates can share their resume with us at: [email protected]

📌 QA Engineer, Trading Systems (India)
🏢 AJEMS
📍 India