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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # QA / Test Engineer, 100% En remoto - **Company:** UST - **Location:** Spain - **Contract:** Permanent contract - **Skills:** Testing (Software), Application Programming Interfaces (APIs), Automation of Tests, Software Bug Management, Continuous Integration, Data Validation, Database Queries, Revision Control Systems, Apache JMeter, Junit, Oracle (Applications), Regression Testing, E2e Testing, SAP IS-U, Selenium, Smoke Testing, SQL Databases, Test Data, Strategies of Testing, Postman, Gatling, Integration Tests, Cucumber (Software) - **Published:** July 30, 2026 - **Apply:** https://www.empleate.gob.es/empleo/#/oferta/1856272747 ## About the Role reconciliation activities. Prepare and manage test environments, test data, customer accounts, meters, tariffs, and usage scenarios. Log, track, analyze, and retest defects while collaborating with developers, analysts, and business stakeholders. Support User Acceptance Testing (UAT) through scenario preparation, execution monitoring, evidence collection, and defect management. Contribute to performance, resilience, security, and operational readiness testing activities. Support cutover rehearsals, production validation, smoke testing, reconciliation controls, and hypercare activities. What do we expect from you? 4+ years of experience in software testing and quality assurance within enterprise environments. Strong knowledge of: Functional Testing End-to-End Testing Integration Testing Regression Testing Risk-Based Testing Defect Management Hands-on experience with API testing tools such as Postman, REST Assured, or similar. Strong SQL skills for data validation, reconciliation, and migration testing. Experience building and maintaining automated test frameworks and automated regression suites. Familiarity with CI/CD pipelines, source control systems, and automated test execution. Ability to analyze complex business rules, pricing structures, effective-dated logic, financial calculations, and exception flows. Experience with automation technologies such as: Cucumber JUnit REST Assured Selenium Strong communication skills and the ability to produce clear test evidence and defect documentation. Good spoken and written English. Nice to have Utility industry experience, especially customer information and billing platforms. Knowledge of platforms such as SAP Utilities, Oracle Utilities, Kraken Technologies, or Hansen. Experience with meter-to-cash, customer-to-cash, market operations, and debt management processes. Performance and resilience testing using JMeter, k6, or Gatling. Experience with AWS integrations, eve ## Description with test automation, SQL, CI/CD practices, and modern testing frameworks is highly valued. Main tasks and accountabilities will be: Define and execute test strategies, plans, estimates, coverage models, and quality gates aligned with project risks and delivery milestones. Design and execute functional, integration, end-to-end, API, regression, exploratory, and data validation test scenarios. Validate customer, contract, tariff, billing, invoicing, payments, refunds, collections, and financial processes across the platform. Perform complex billing verification, including proration, effective dating, taxes, discounts, adjustments, reversals, rebilling, and exception handling. Test APIs and event-driven integrations, ensuring reliability, sequencing, idempotency, error handling, and operational visibility. Develop and maintain automated tests and regression suites for APIs, services, and critical business journeys. Use SQL for data setup, validation, comparison, migration verification, and ## Related Videos - [Continuous testing - run automated tests for every change!](https://www.wearedevelopers.com/videos/190-continuous-testing-run-automated-tests-for-every-change) - [Are Your APIs Ready for AI Agents](https://www.wearedevelopers.com/videos/2004-are-your-apis-ready-for-ai-agents) - [How Unit Testing Saved My Career](https://www.wearedevelopers.com/videos/1642-how-unit-testing-saved-my-career) - [SMART Test Automation - the experience of legacy transformation](https://www.wearedevelopers.com/videos/100215-smart-test-automation-the-experience-of-legacy-transformation) - [Load Testing AI: Aiming at a Moving Target](https://www.wearedevelopers.com/videos/1914-load-testing-ai-aiming-at-a-moving-target) - [From boy scouting to redrawing the landscape](https://www.wearedevelopers.com/videos/1140-from-boy-scouting-to-redrawing-the-landscape) ## Related Articles - [The 8 Best Code Testing Tools](https://www.wearedevelopers.com/magazine/402-the-8-best-code-testing-tools) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Integration And E2E Testing: Are They Complementary or Interchangeable?](https://www.wearedevelopers.com/magazine/86-integration-and-e2e-testing-are-they-complementary-or-interchangeable) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers)