Middle QA Manual

We are building a high-load financial platform for processing fiat and cryptocurrency payments, integration with banks, PSPs, card providers and blockchain infrastructure. 
The system includes:

• Processing of crypto and fiat payments;
• KYC/AML flow;
• API for merchants;
• Control panel for operators and clients;
• User personal account;
  Tasks:
• Development and support of test cases (UI, API, functional, regression, smoke);
• Сonducting manual and automated testing of Web and API components;
• Testing user scenarios (KYC, transactions, conversion, withdrawals, commissions);
• Checking the security and correctness of validations (including 2FA, signatures, integration with external services);
• Testing internal panels (Back-office / Admin / Monitoring);
• Participation in testing integrations: with banks, cards, blockchains, payment gateways;
• Compiling bug reports, working with tickets and documentation;
• Participation in improving QA processes and CI/CD pipeline.
  
  Technology stack:
• Postman, Swagger;
• Python or JS (preferred, but not required, for automated tests)
  CI/CD: GitLab;
• Databases: PostgreSQL / Redis.
  
  Requirements:
• Experience in commercial testing from 2+ years (fintech/payment systems is a plus);
• Excellent knowledge of testing basics: types of tests, techniques, bug life cycle;
• Experience in REST API testing, understanding HTTP requests, authorization (JWT, HMAC, OAuth);
• Ability to work with documentation, read Swagger/OpenAPI, specifications
• Experience with banking or crypto integrations is an advantage;
• Understanding how payment systems work: transactions, statuses, fees, rejections;
• Ability to analyze logs, use console, SQL queries.
  
  Will be a plus:
• Experience writing automated tests (Python + Pytest / JS + Cypress/Playwright);
• Experience with PCI DSS and security in fintech;
• Understanding blockchain protocols and transactions (ETH, BTC, USDT, TRON).