QA Lead (trading platform)

EMCD is building and scaling its own trading platform, and we're looking for a Senior QA Engineer with strong trading domain experience to take ownership of product quality across the platform.

This role is ideal for someone who wants to stay hands-on, influence QA strategy, and gradually grow into a leadership position with a small team of 2 QA engineers.

Responsibilities

• Own and improve end-to-end QA processes across the exchange platform
• Drive QA for the trading core, including matching, risk, spot, derivatives, custody, gateways, and market data
• Define release quality gates, test coverage expectations, regression scope, and acceptance criteria
• Develop testing approaches for trading scenarios: order lifecycle, balance consistency, margin, liquidations, ADL, funding, and PnL
• Own performance and stress testing processes: latency, throughput, stability, and regression tracking
• Organize contract and end-to-end testing between distributed services
• Improve test environments, test data, simulators, and staging reliability
• Participate in incident reviews from a QA perspective and help prevent recurring production issues
• Contribute to QA standards and help shape the future QA setup of the team

Requirements

• 5+ years of experience in QA and mandatory experience in trading, exchange, or brokerage
• Strong understanding of trading concepts: orders, order book, margin, balances, PnL, liquidations, funding, and market data
• Experience building or significantly improving test automation: frameworks, CI integration, reporting, and test data
• Strong understanding of distributed systems testing: contract testing, idempotency, race conditions, eventual consistency, fault tolerance, and chaos testing
• Hands-on experience with performance and load testing using tools such as k6, Gatling, JMeter, or custom generators
• Ability to work closely with engineering: review specifications, challenge design decisions, and define test strategy early

Nice to Have

• Experience with a crypto exchange, CEX, custody, or market-making infrastructure
• Experience with property-based or fuzz testing tools
• Security testing experience or participation in pentest processes for financial systems

What We Offer:

• Fully remote work from anywhere in the world
• Flexible working hours focused on results
• 28 calendar days of vacation + 12 additional bonus days
• Paid sick leave with no bureaucracy
• Compensation for courses, certifications, and training programs
• Real ownership of one of the most critical parts of the exchange infrastructure