Senior Quality Engineer - Test Automation & Financial Systems (m/f/d)

Traffit; Warszawa; Hybrid; PLN 180,000 - 280,000; Full time

Benefits offered by this job

Paid time off 22 days

Mostly remote with monthly Warsaw офис

Job summary

Traffit is seeking a hands-on Senior Quality Engineer to shape testing strategy for a financial software platform. You will lead automated testing across E2E, API, and integration layers, ensuring financial correctness and reliability as the product evolves.

Collaboration with engineers and finance-domain experts is essential. The role emphasizes automated quality, with a focus on performance testing and cross-system validation.

Qualifications

• Hands-on, production-quality automation.
• Experience with Playwright, API testing, and CI/CD pipelines.
• Ability to translate requirements into test scenarios and validate results.
• Strong analytical, detail-oriented, ownership mindset.

Responsibilities

• Design, build, and maintain automated tests (E2E, API, integration, regression).
• Validate complex business logic and financial calculations.
• Test full business workflows across frontend, backend, and data layers.
• Develop performance/load tests and identify bottlenecks.
• Improve test coverage and CI/CD integration across the lifecycle.

Skills

Test automation

E2E testing

API testing

CI/CD

Playwright

K6

PostgreSQL

Financial systems domain

Tools

Playwright

K6

PostgreSQL

Job description

Senior Quality Engineer - Test Automation & Financial Systems (m/f/d)

We are looking for a hands‑on Quality Engineer to build and drive our testing strategy for a financial software platform. This role focuses on test automation, financial correctness, and end‑to‑end system reliability - not traditional manual QA or repetitive regression testing. You'll work closely with engineers and domain specialists to ensure complex financial workflows behave correctly, remain reliable as the product evolves, and are covered by effective automated tests.

What you’ll do

• Design, build, and maintain automated tests, including E2E, API, integration,and regression tests, working closely with the engineering team.
• Validate complex business logic and financial calculations, ensuringcorrectness, consistency, and alignment with business requirements.
• Test complete business workflows across frontend, backend services, and datalayers, identifying integration issues, edge cases, and unexpected behavior.
• Develop performance and load tests, identify bottlenecks, and help engineersestablish reliability and performance baselines.
• Drive quality improvements across the development lifecycle, identifying gaps between requirements and implementation, refining acceptance criteria with domain specialists, and improving test coverage and CI/CD integration.

What we’re looking for

• Strong experience in test automation and software engineering, includingwriting maintainable, production-quality test code.
• Hands‑on experience with E2E testing frameworks (e.g., Playwright), API testing,integration testing, and CI/CD pipelines.
• Ability to understand complex business logic, translate requirements into testscenarios, and independently validate expected results.
• Experience with performance testing tools (e.g., k6) and debugging issuesacross distributed systems.
• A pragmatic, engineering-driven approach to quality, with strong analytical skills, attention to detail, and a sense of ownership.

Nice to have

• Experience testing complex financial or data-intensive systems, PostgreSQL, contract testing, or AI-powered testing tools.

You’ll collaborate with backend and frontend engineers, product owners, and financial domain specialists. Developers remain responsible for the quality of their own code, while you’ll take ownership of cross‑system validation, testing practices, and automated quality assurance. Familiarity with AI coding agents and AI‑assisted testing workflows is expected. The goal is to build a fast, reliable, and scalable quality process that supports rapid product development without unnecessary bureaucracy.

Work Model: Mostly remote, with a preferred office presence in Warsaw once a month.

Contract Type: B2B contract.

Time Off: 22 days of paid time off per year.