Manual QA Engineer – Senior

FinteqHub; Warszawa; Remote; PLN 120,000 - 180,000; Full time

Benefits offered by this job

Remote work flexibility

Private insurance

Extra day off

Sports program

Mental health program

Online English lessons

Referral program

Training & conferences

Job summary

FinteqHub is seeking a seasoned Manual QA Engineer to ensure the high quality and stability of the Cashier Widget across browser and mobile integrations. You will help deliver reliable payment flows and a consistent user experience for merchants and their customers.

You will develop and maintain test documentation, perform functional and regression testing, test REST APIs with Postman, and collaborate closely with developers and analysts throughout the lifecycle. English required; Russian a plus.

Qualifications

• 3+ years of QA engineering experience.
• Hands-on testing of backend and web frontend apps.
• Solid understanding of SDLC and microservices.
• Good SQL knowledge for data validation.
• Experience testing REST APIs.
• Cross-browser and mobile testing experience.
• Strong communication and collaboration skills.
• English B1+; Russian C1+ is a plus.

Responsibilities

• Develop and maintain test documentation: specs, test cases, plans.
• Perform functional and regression testing across web and mobile.
• Test REST APIs using Postman and Charles Proxy.
• Validate user flows across web and mobile interfaces.
• Identify, document, and track issues in the bug tracker.
• Collaborate with developers and analysts throughout the lifecycle.
• Prepare clear reports based on testing results.
• Participate in feature discussions and suggest quality improvements.

Skills

Backend testing

Frontend testing

API testing

SQL

REST APIs

Test documentation

Bug tracking

Cross-browser testing

Tools

Postman

Charles Proxy

Job description

Overview:

FinteqHub continues to expand the team and is looking fora Manual QA Engineer. We need a true, experienced and accomplished professional who shares our culture and values.

About Product:

Finteqhub

А PCI DSS certified payment gateway for online businesses, providing integration with payment systems via a single software platform.

Purpose of the Role:

You’ll ensure the high quality and stability of Cashier Widget across browser and mobile integrations. Your work will help deliver reliable payment flows and a consistent user experience for merchants and their customers.

Key Responsibilities:

• Develop and maintain test documentation, including specifications, test cases, and test plans for backend and frontend functionality
• Perform functional and regression testing across web and mobile environments
• Test REST APIs using tools such as Postman and Charles Proxy
• Test user flows across web interfaces and mobile applications
• Identify, document, and track issues in the bug tracking system
• Collaborate closely with developers and analysts throughout the development lifecycle
• Prepare clear and detailed reports based on testing results
• Participate in discussions around new features and suggest improvements to product quality and user experience

Required Experience:

• At least 3 years of experience as a QA Engineer
• Hands-on experience testing both backend and web frontend applications
• Good understanding of the software development lifecycle, modern distributed applications, and microservices architecture
• Good knowledge of SQL
• Experience testing REST APIs
• Experience testing web applications across different browsers and devices
• Strong communication and collaboration skills
• English: B1 or higher
• Russian: C1 or higher

Nice to Have:

• Experience testing embedded widgets and mobile integrations using WebView
• Experience testing fintech products or other systems with high requirements for data security and integrity
• Broad technical knowledge across web, backend, mobile, and integration technologies

Our Benefits:

• Full-time remote work opportunities and flexible working hours
• Private insurance
• Additional 1 Day Off per calendar year
• Sports program compensation
• Comprehensive Mental Health Programme
• Free online English lessons with a native speaker
• Generous referral program
• Training, internal workshops, and participation in international professional conferences and corporate events.