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McKesson is an impact-driven, Fortune 10 company that touches virtually every aspect of healthcare. We are known for delivering insights, products, and services that make quality care more accessible and affordable. Here, we focus on the health, happiness, and well-being of you and those we serve – we care.

What you do at McKesson matters. We foster a culture where you can grow, make an impact, and are empowered to bring new ideas. Together, we thrive as we shape the future of health for patients, our communities, and our people. If you want to be part of tomorrow’s health today, we want to hear from you.

McKesson complies with all applicable U.S. immigration laws and regulations. The Company does not provide employer support or sponsorship for any immigration related employment benefit for this role.

Applicants must be currently authorized to work in the United States on a fulltime basis without the need for employer support or sponsorship now or in the future. This includes having the legal right to work in the United States without the need for McKesson support or sponsorship for any immigration related employment authorization (e.g., H1B, O1, E3, H1B1, TN, F1 OPT, F1 STEM OPT, F1 CPT, etc.) now or in the future.

If you will require McKessonto provide immigration support or sponsorship now or in the future, you should not apply for this position

Ontada is a leading oncology real‑world data and evidence, clinical education, and provider technology business dedicated to transforming the fight against cancer. Part of McKesson Corporation, we support science through our data, technology, and channels, accelerating innovation for life science companies, empowering community oncology providers, and advancing patient care. Together with our partners, we improve the lives of cancer patients.

Role Summary

The Software Automation Engineer is a senior individual contributor responsible for designing, developing, and maintaining automated test solutions across Ontada’s product ecosystem, with a strong focus on AI‑enabled and GenAI‑powered systems. Reporting to the QA Lead, this role drives high‑quality automation for UI, API, backend, and data layers, while ensuring AI/ML features meet expectations for correctness, reliability, safety, and compliance.

This role partners closely with Product, Engineering, and MLOps teams to validate both traditional software workflows and AI‑driven behaviors, including prompt‑based systems, retrieval‑augmented generation (RAG), and model‑integrated services.

Key Responsibilities

Quality Engineering Ownership & Execution

• Own and execute test strategy, planning, and execution for assigned features, services, or product areas under the guidance of the QA Lead.

• Identify functional, integration, and non‑functional quality risks early, communicate risks, impacts, and recommendations clearly.

• Author comprehensive test strategies, test plans, and test cases aligned with product requirements and acceptance criteria.

• Perform exploratory testing to uncover complex, edge‑case, and systemic defects.

• Coordinate end‑to‑end validation across multiple environments to ensure release readiness.

Test Automation & Framework Development

• Design, develop, and maintain automated test suites across UI, API, service, and data layers.

• Contribute to the enhancement and maintainability of automation frameworks using tools such as Selenium, Playwright, Cypress, TOSCA, or similar.

• Develop robust API automation using RestAssured, Postman, or equivalent frameworks.

• Implement effective test data strategies, including synthetic data generation and environment setup.

• Integrate automated tests into CI/CD pipelines to support fast and reliable feedback cycles.

•  Leverage AI‑assisted development tools (e.g., GitHub Copilot, Claude Code, or similar) to accelerate test automation development, refactoring, and debugging while maintaining code quality and security standards.

• Use AI tooling to assist with test case generation, edge‑case identification, and data‑driven scenario expansion, validating all outputs through engineering judgment and established QA practices.

AI / GenAI Quality Engineering

• Design and execute test strategies for AI/ML and GenAI‑powered features, including LLM‑based workflows.

• Validate prompt behavior, prompt templates, and prompt chaining across different scenarios and data contexts.

• Perform negative testing for AI systems, including prompt injection, jailbreak attempts, hallucination risks, and unsafe outputs.

• Test Retrieval‑Augmented Generation (RAG) pipelines, including:

  • Embedding quality validation

  • Retrieval accuracy, recall, and relevance

  • Chunking and indexing strategies

• Validate AI outputs for accuracy, consistency, explainability, and compliance in regulated environments.

• Collaborate with Engineering and MLOps teams to test model integrations, configuration changes, and inference pipelines.

• Utilize AI‑powered tools to support prompt analysis, test scenario exploration, and hypothesis generation when validating LLM‑based features and AI workflows.

• Critically evaluate AI‑generated suggestions and outputs to ensure accuracy, safety, reproducibility, and regulatory compliance.

Backend & Data Testing

• Perform advanced backend testing across SQL and NoSQL data systems.

• Validate data ingestion, transformations, persistence, and integrity across services and environments.

• Coordinate testing of asynchronous workflows and integrations (e.g., message queues, APIs, batch processes).

Agile Collaboration

• Work closely with Product Owners and Business Analysts to refine user stories, define acceptance criteria, and ensure testability.

• Partner with developers during design and implementation to support shift‑left testing.

• Participate actively in sprint planning, grooming, retrospectives, and release readiness reviews.

• Collaborate with onshore and offshore QA team members to ensure consistent execution and quality standards.

Quality Governance, Compliance & Continuous Improvement

• Ensure testing activities align with HIPAA and other regulatory, security, and data‑privacy requirements.

• Contribute audit‑ready documentation, including test plans, execution evidence, and reports.

• Participate in root‑cause analysis for quality or performance issues and support corrective actions.

• Identify opportunities for improving QA processes, tools, and documentation; contribute suggestions through established continuous improvement channels.

• Research and evaluate new QA, automation, or performance testing, AI assisted tools and techniques as appropriate.

Minimum Requirement

Degree or equivalent and typically requires 2+ years of relevant experience.

Education

Bachelor’s degree in computer science, Engineering, Mathematics, or equivalent practical experience.

Critical Skills

• 2+ years of progressive Software Quality Assurance experience, preferably in healthcare or regulated industries.

• 2+ years of hands‑on test automation development experience.

• 2+ years of API testing and automation experience.

• 2+ years of backend testing experience using SQL and/or NoSQL databases.

• 2+ years of software performance testing experience, including test planning, execution, and analysis.

• 1+ years of experience testing AI/ML or GenAI systems or demonstrated delivery of AI‑adjacent quality frameworks (e.g., prompt testing, RAG evaluation, guardrails).

• Experience owning QA execution for complex product areas with limited day‑to‑day oversight.

• Experience mentoring or supporting junior QA engineers.

Additional Skills

• Strong experience working in Agile SDLC environments with CI/CD pipelines.

• Proficiency in Java, JavaScript, or Python for test automation and scripting.

• Experience with CI/CD tools such as Jenkins, GitHub Actions, GitLab CI and build tools like Maven or Gradle.

• Solid understanding of QA methodologies, test design techniques, and quality metrics.

• Hands‑on experience with performance testing tools (JMeter, NeoLoad, or similar).

• Experience using profiling and monitoring tools (Dynatrace, New Relic, AppDynamics, Splunk, JProfiler).

• Ability to analyze performance issues related to CPU, memory/heap, garbage collection, threads, databases, messaging systems, and network latency.

• Experience creating reusable, maintainable, and portable automation and performance test scripts.

• RAG testing experience, including embedding quality, retrieval evaluation, and chunk strategy validation.

•  Familiarity with vector databases and semantic search concepts.

• Hands‑on experience using AI‑assisted coding and analysis tools such as GitHub Copilot, Claude Code, or similar.

• Ability to apply AI tools effectively for:

• Test automation development and refactoring

• Debugging and root‑cause investigation

• Exploratory test design and edge‑case discovery

• Strong understanding of limitations and risks of AI‑generated outputs, with the ability to validate, correct, and harden results for production‑quality use.

• Experience with source control tools such as GitHub, Bitbucket, Git Bash.

• Experience with test management tools (qTest, TestRail, ALM, TestLink, or similar).

• Familiarity with microservices and distributed system architectures.

• Experience benchmarking, capacity planning, and release readiness reporting.

• Knowledge of healthcare software, data privacy, and regulatory compliance is a plus.

• Ability to manage multiple priorities and work independently in a fast‑paced environment.

Working Conditions

• Fully remote role within the Eastern or Central United States.

• Collaboration with distributed, cross‑functional teams.

This position offers the possibility of a hybrid work arrangement based on recent updates to our in-office/work‑from‑home model.  If located in DFW area, the selected candidate may be expected to work on‑site at our Las Colinas office a minimum of two (2) days per week, with the remaining days worked remotely. Specific in‑office days may be designated according to team needs and business priorities.

We are proud to offer a competitive compensation package at McKesson as part of our Total Rewards. This is determined by several factors, including performance, experience and skills, equity, regular job market evaluations, and geographical markets. The pay range shown below is aligned with McKesson's pay philosophy, and pay will always be compliant with any applicable regulations. In addition to base pay, other compensation, such as an annual bonus or long-term incentive opportunities may be offered. For more information regarding benefits at McKesson, please click here.

Our Base Pay Range for this position

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McKesson provides equal employment opportunities to applicants and employees, without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability, age, genetic information, or any other legally protected category. For additional information on McKesson’s full Equal Employment Opportunity policies, visit our Equal Employment Opportunity page.

McKesson is committed to being an Equal Employment Opportunity Employer and offers opportunities to all job seekers including job seekers with disabilities. If you need a reasonable accommodation to assist with your job search or application for employment, please contact us by sending an email to (United States) Disability_Accommodation@McKesson.com or (Canada) Accessibility@mckesson.ca. Resumes or CVs submitted to this email box will not be accepted.

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