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Urgent! Senior QA Engineer - Data Lake Job Opening In Kuala Lumpur – Now Hiring PayNet (Payments Network Malaysia)

Senior QA Engineer Data Lake



Job description

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Summary of Responsibilities

As a QA Engineer, you will play a critical role in designing, developing, and implementing automated testing frameworks to ensure the quality and reliability of our data-driven applications and APIs. You will be responsible for expanding test automation coverage, optimizing test strategies, and collaborating closely with development, data, product teams and other stakeholders.

This role requires a strong understanding of software testing methodologies, API validation, performance testing, and automation tools.

Key Areas of Responsibilities

Test Strategy and Planning

  • Contribute to test strategy formulation and drive improvements in test planning.

  • Define test scope, success criteria, and test environments for different projects.

  • Collaborate with stakeholders to align test coverage with business objectives.

Test Execution & Automation

  • Implement and execute manual and automated test cases across APIs, databases, and UIs.
  • Expand automation test coverage using Python (pytest), Postman, and any other frameworks.

  • Identify inefficiencies in the testing process and propose improvements.

  • Ability to detect design flaws and inconsistencies.

  • Ability to analyse design documents, identify gaps or inconsistencies in requirements, and ensure completeness.

  • Investigate, track, and document defects using proper defect management tools.

  • Conduct root cause analysis and work with developers to ensure timely fixes.

  • Continuously monitor test results and improve stability.

CI/CD & Security

  • Enhance CI/CD integration by automating test execution in Gitlab pipelines.

  • Apply OWASP Top 10 security best practices in API and performance testing.

  • Maintain comprehensive test documentation, including test cases, scripts, and reports.

  • Work closely with Developers, QAs, and Data Engineers to improve quality assurance processes.

  • Mentor Junior QA Engineers and provide technical guidance.

  • Coordinate on software release, including managing Change Requests (CRs), ensuring all items in the CR are tested in UAT, staging, and production (post-deployment).

Functional Competencies

GraphQL

  • Expertise in query syntax, fields, arguments, types, and resolvers.

  • Ability to create queries to test use cases and validate responses.

  • Knowledge of how to handle errors and validate error messages.

  • Ability to use tools like Postman to test GraphQL endpoints.

SQL

  • Expertise in writing SQL queries to retrieve and validate data.

  • Ability to construct queries for testing data integrity and accuracy.

Python

  • Expertise in scripting for automation tests against data structures, data quality, GraphQL API, REST API or any other data related scripting.

  • Ability to write script to verify data accuracy across different data sources like DB, text files, PDF, API, etc.

Automation Testing Frameworks

  • Advanced proficiency in Python-based testing frameworks and tools (pytest, SGQLC, openpyxl, pdfplumber, etc.).

  • Familiarity and knowledge of using Postman.

  • Experience with k6, JMeter for API and system performance validation, including system monitoring tools like Grafana, Datadog, Dynatrace, etc.

  • Strong understanding of GitLab/Jenkins for automated testing.

API Development

  • Experience in API authentication and authorization methods.

  • Familiarity with RESTful API, GraphQL API, gRPC

Security

  • OWASP Top 10 knowledge for API security assessment.

General Software Engineering Skills

  • Familiarity with version control systems like Git.

  • Understanding of Agile development practices.

Soft Skills

  • Good collaboration skills to work with Developers, Data Engineers, and stakeholders.

  • Strong communication skills for conveying technical concepts.

  • Strong analytical and problem-solving skills.

  • Ability to work in multidisciplinary teams and promote knowledge sharing.

Qualifications & Experience

Minimum Qualifications

  • Bachelor’s degree in computer science, Information Systems Technology, or Software Engineering
  • 3-5 years’ experience in QA/testing, with a focus on automation and API testing.

  • Experience in Financial Services and/or Technology sectors is a plus.

  • Proficiency in both English and Bahasa Malaysia.

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Required Skill Profession

Engineering



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