Manual QA Engineer

September 19, 2026

Remote

Middle

Warsaw, Poland

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English is required

Description

The company builds B2B iGaming platforms for operators, delivering full-cycle technology from integrations and consulting to long-term operational support across brands, markets, and geos. The Manual QA Engineer ensures software quality and system reliability across Web applications, Backend layers, and REST APIs within a CRM and Data team. The role focuses on independent risk identification, defining test coverage, and localizing root causes across client, database, and integration environments to support release decisions. The position is remote-first and based in Warsaw, Poland.

Responsibilities

Analyze requirements and product changes, identify gaps and risks, and define the right test coverage
Design and execute functional, regression, integration, exploratory, and end-to-end testing
Validate functionality across UI, API, database, and integration layers
Assess regression and release risks and make quality visible before changes go live
Investigate defects and localize issues across client, backend, data, integrations, and environments
Use browser DevTools, network debugging, proxy tools, API tools, logs, and databases to reach the root cause
Inspect HTTP/HTTPS requests and responses to troubleshoot issues
Verify bug fixes and make sure changes do not introduce new problems
Test Web applications across relevant user flows, integrations, and edge cases
Test REST APIs and Backend functionality including authentication, authorization, and API communication
Validate data using SQL queries and relational databases
Work with API tools such as Postman or Swagger
Support software releases and contribute to release readiness decisions
Communicate testing progress, blockers, risks, and quality clearly to the team
Work with developers and other stakeholders to investigate issues and unblock delivery
Contribute to improving QA processes, documentation, and testing approaches
Quickly understand new products, technical areas, and testing contexts
Bring a generalist QA mindset and apply the right testing approach instead of one fixed process
Work independently while knowing when to ask questions, challenge assumptions, or raise a risk

Requirements

Solid hands-on experience in Software Testing / Manual QA with the ability to work independently
Strong experience testing Web applications
Strong hands-on experience with Backend and REST API testing
Good understanding of HTTP, client-server architecture, authentication, authorization, and API communication
Confident use of API testing tools such as Postman, Swagger, or similar
Good understanding of relational databases and ability to write SQL queries for data validation
Strong debugging skills including browser DevTools, network analysis, and traffic interception tools such as Charles Proxy, Proxyman, or Fiddler
Ability to investigate issues across UI, API, database, and integration layers
Hands-on experience with Git and development/release workflows: branches, merges, pull requests, tags/releases, and basic conflict resolution
Experience supporting software releases and understanding of functional, regression, integration, exploratory, and end-to-end testing
Ability to work with incomplete requirements, ask the right questions, identify risks, and build sufficient test coverage
Practical experience using AI tools in day-to-day QA work such as Claude Code or ChatGPT and willingness to incorporate AI into testing workflows
Intermediate English or higher, with fluency in Ukrainian or Russian

Conditions

Benefits Cafeteria with an annual budget for sports, medical, mental health, home office, and languages
Paid maternity and paternity leave plus a monthly childcare allowance
20+ vacation days, unlimited sick leave, and emergency time off
Remote-first format with tech support and coworking compensation
Team events online, offline, and offsite
Learning culture with internal courses and growth programs

Manual QAPostmanSwaggerSQLGitDevToolsCharles ProxyProxymanFiddlerREST APIHTTP/HTTPSDatabaseigaming / b2b platformsKafkaCI/CDDocker

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