Quality Assurance Engineer POS and Cloud Validation

NATASHA MULLINGS

425-***-**** *****************@*****.***

Professional Summary

Detail-oriented Quality Assurance Engineer with enterprise experience validating complex, integrated systems across POS and cloud-hosted environments. Strong background in regression testing, API validation, backend data verification, and defect analysis. Experienced in developing automated test scripts using Selenium and Java, executing REST API workflows, and ensuring alignment between business requirements and system behavior. Recognized for thorough documentation, structured analysis, and consistent collaboration across cross-functional teams to support stable releases.

NCR Voyix –2024 - 2026

Software Quality Engineer II

•Performed end-to-end validation of enterprise POS and Connected Payments systems, ensuring promotional, loyalty, and transactional workflows operated accurately across integrated environments.

•Executed structured regression and release testing cycles, identifying functional and configuration-related defects prior to deployment.

•Created and maintained epics and user stories with clearly defined acceptance criteria to ensure traceability between business requirements and validation activities.

•Executed REST API calls to validate order creation and confirm promotional configurations were accurately reflected within POS workflows.

•Investigated transactional discrepancies by analyzing system outputs and related artifacts, documenting findings to support defect resolution.

•Conducted fresh installations and system upgrades across multiple lab environments to maintain stable and release-ready configurations.

•Logged detailed defects including reproduction steps, supporting evidence, and business impact context to facilitate efficient triage.

•Supported onboarding efforts by assisting teammates with environment setup and validation processes.

•Provided regular testing updates, risk assessments, and blockers during stand-ups to maintain cross-functional alignment.

General Motors –2022 - 2024

Software Testing Engineer

•Developed automated test scripts using Selenium and Java to expand regression coverage and improve validation efficiency across enterprise applications.

•Led performance testing efforts using LoadRunner, including script recording, parameterization, cleanup, and execution to ensure accurate simulation of real-world system usage.

•Prepared and tailored performance test scripts to maintain clean, reliable execution and meaningful performance metrics.

•Executed RESTful API validations to verify service reliability, authentication flows, and accurate data exchange across integrated systems.

•Queried cloud-hosted databases during testing to confirm backend data consistency and alignment with expected business outcomes.

•Assigned and coordinated test cases within sprint cycles to ensure comprehensive coverage and timely execution.

•Collaborated closely with product owners and engineers to refine and create user stories, ensuring gaps in business requirements were identified and addressed.

•Contributed to backlog discussions to clarify acceptance criteria and align validation scenarios with intended functionality.

•Performed functional, integration, regression, and performance testing to validate application stability under varying operational conditions.

•Documented and tracked defects with clear reproduction steps and impact analysis, partnering with development teams to confirm remediation.

•Supported release readiness by validating features within cloud-hosted, distributed environments prior to deployment.

Skills

•End-to-End System Validation

•Regression & Release Testing

•Test Automation (Selenium + Java)

•REST API Validation

•Backend Data Verification

•Defect Lifecycle Management

•Agile / Scrum Collaboration

•Requirements Interpretation

•Root Cause Investigation

•Environment Setup & Configuration

•Technical Documentation

•Cross-Functional Communication

Technical Skills

Languages: Java, SQL

Automation: Selenium WebDriver

API Tools: Postman, REST Assured

Dev Tools: Azure DevOps, Jira

Testing: Functional, Regression, Integration, Performance (LoadRunner)

Systems: VM-based environments, Distributed systems exposure

Authentication: OAuth

Database: Backend data validation through SQL queries

Education

Georgia State University –2015- 2021

Bachelor of Science in Computer Science & Programming

President's List – Fall 2020; Dean's List – Fall 2017; Dean’s List – Fall 2015; Honor List- Spring 2013

Relevant coursework: Software Engineering, Systems Analysis & Design, Database Systems, Operating Systems, Artificial Intelligence.

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