Mobile QA Engineer – Expert

Role Overview

• Test complex fintech and crypto workflows, including transactions, card operations, swaps, KYC flows, asset transfers, and fiat on/off-ramps.
• Own quality hands-on: test new features yourself across mobile (iOS/Android), backend services, and back-office tools.
• Participate in feature design and delivery, identifying risks and quality considerations early in the development lifecycle.
• Investigate production issues, reproduce defects, and ensure root causes are addressed.
• Collaborate with developers on automated testing strategy and coverage.
• Design comprehensive test scenarios and acceptance criteria.
• Review automated test implementations to ensure meaningful coverage of business-critical functionality.
• Set the QA bar across the team by building out templates, checklists, and bug-reporting standards, while tracking key metrics (defect rate, escape rate, CFR/LT) and translating them into actionable reports.
• Keep production rock solid — overseeing monitoring across Sentry, Firebase, and Grafana, leading incident response and post-mortems, and digging into root causes to strengthen the system over time.
• Contribute to a quality-first engineering culture where testing is embedded into the development process.
• Support incident investigations, post-mortems, and continuous reliability improvements.
• Monitor product health using observability and analytics tools.
• Influence product and engineering decisions through data, technical analysis, and risk assessment.
• Help teams balance delivery speed with product reliability and customer trust.

Requirements

• Strong hands-on experience in manual testing of mobile applications and backend systems, with 5+ years of experience delivering quality in production environments.
• Hands-on experience establishing and nurturing a quality-first culture across production products, driving continuous improvement, and scaling QA practices in line with product growth.
• Deep understanding of test design techniques, exploratory testing, regression strategies, and risk-based testing.
• Experience testing complex business logic in fintech, payments, crypto, trading, or similarly regulated domains.
• Strong API testing and debugging skills.
• Experience working closely with engineering teams on test automation initiatives.
• Ability to understand system architecture, backend integrations, and data flows.
• Good understanding of performance, reliability, and scalability testing principles.

Tech Stack

• Android
• Firebase
• Grafana
• iOS

Benefits

• Fully remote work within an international product team.
• An engineering culture that encourages the adoption of modern tools and practices, giving engineers real influence over technologies, workflows, and technical decisions.
• Competitive compensation based on experience and impact.
• The opportunity to work on products used for managing real financial assets.
• Significant ownership and influence over product quality and engineering practices.
• Clear growth opportunities across technical, leadership, and cross-functional career tracks.