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We’re looking for a Senior QA Engineer to join the UDF team and take ownership of quality across core backend services. The project consists of high-load, business-critical systems that act as the backbone for data transfers across the company. Failures here are expensive, visible, and unacceptable — quality is a first-class concern. Tech stack: Python, PyTest, Allure TestOps, Git, Docker (for local environments and testing setups)
Job Responsibility:
Own end-to-end quality of backend services across the full lifecycle: design, implementation, release, and post-release
Design and evolve test strategies for complex, distributed backend systems
Plan, implement, and maintain load/stress testing to validate performance limits and degradation behavior
Independently investigate production-like issues: Reproduce failures, Analyze logs, metrics, and test results, Form and validate root-cause hypotheses
Define and continuously improve test coverage at API, protocol, and system levels
Actively influence system design by identifying testability, observability, and reliability gaps early
Work closely with developers as a technical peer, not a gatekeeper
Requirements:
5+ years of hands-on experience testing backend and/or distributed systems
Strong practical understanding of testing methodologies, risk-based testing, and quality ownership
Deep understanding of computer systems fundamentals (process lifecycle, memory, networking, I/O)
Solid knowledge of client-server architecture, HTTP protocol, WebSockets, and REST APIs
Extensive experience with API testing (manual and automated)
Strong scripting skills (Python, Bash, or equivalent) for automation, tooling, and diagnostics
Confident daily use of Unix/Linux environments and CLI tools
Advanced analytical skills: Ability to decompose complex systems into testable layers, Ability to reason about failure modes, race conditions, and edge cases, Ability to turn ambiguous symptoms into concrete, verifiable findings
High learning velocity: Rapidly onboard to unfamiliar services, protocols, and architectures with minimal guidance, Independently study technical documentation and source code to derive meaningful test scenarios, Quickly reach productive depth when systems or requirements change
English — Intermediate+ (technical documentation, written communication)
Nice to have:
Strong experience with performance, load, and stress testing in production-like environments
Proven expertise in test automation architecture and long-term test maintainability
Experience in FinTech or other high-reliability domains
Familiarity with test management and reporting systems (Allure TestOps, TestRail)
Solid understanding of distributed systems trade-offs (latency, consistency, fault tolerance)
Experience in finance or trading domain
Familiarity with TradingView as a product
What we offer:
Flexible working hours and a hybrid work format
Well-equipped offices for focused and collaborative work