Senior Software Development Engineer in Test
First seen by Alion on Aug 19, 2026.
Role Overview :
The role requires strong expertise in automation architecture, Python-based test frameworks, API testing, UI testing, cloud testing, performance, integration, and CI/CD. The candidate will provide technical leadership to QA/SDET teams and drive quality engineering practices across the software development lifecycle.
Key Responsibilities :
- Define and drive the overall automation and quality engineering strategy.
- Design scalable and maintainable automation frameworks using Python.
- Develop automated test suites covering UI, API, integration, functional, regression, and end-to-end testing.
- Build and maintain automated testing solutions for React.js-based web applications.
- Design comprehensive API automation and service-level testing frameworks.
- Develop automated validation for backend services, databases, and distributed systems.
- Integrate automated testing into CI/CD pipelines.
- Design and execute testing strategies for applications deployed on AWS.
- Validate AWS-based application components, integrations, scalability, and reliability.
- Develop test strategies covering functional, integration, regression, performance, security, and reliability requirements.
- Lead test planning, estimation, execution, defect management, and release validation.
- Establish quality gates and automated validation mechanisms across development pipelines.
- Perform root-cause analysis of complex defects and work closely with developers to resolve issues.
- Conduct code and automation framework reviews to ensure maintainability and reliability.
- Define test data management, environment strategy, and test execution standards.
- Identify opportunities to improve test coverage, execution speed, and automation efficiency.
- Mentor SDETs and QA engineers and establish best practices across the team.
- Collaborate with software architects, developers, DevOps engineers, product managers, and engineering leadership.
- Monitor quality metrics and provide actionable insights to engineering stakeholders.
Required Skills :
- 12 to 16 years of experience in Software Development in Test, Quality Engineering, Test Automation, or Software Engineering.
- Strong hands-on expertise in Python programming.
- Extensive experience designing and developing automation frameworks.
- Strong experience with UI automation for React.js applications.
- Strong experience with API automation and RESTful services.
- Extensive experience with AWS-based applications and cloud testing.
- Strong understanding of distributed systems, microservices, databases, and web technologies.
- Experience with CI/CD tools and integrating automated tests into deployment pipelines.
- Strong understanding of software testing methodologies and quality engineering practices.
- Experience with functional, regression, integration, end-to-end, performance, and API testing.
- Strong experience with defect management, root-cause analysis, and quality metrics.
- Excellent understanding of Agile and DevOps practices.
- Strong technical leadership, mentoring, communication, and problem-solving skills.
Preferred Skills :
- Experience with tools/frameworks such as PyTest, Selenium, Playwright, Cypress, or similar.
- Experience with AWS services such as EC2, S3, Lambda, ECS/EKS, RDS, CloudWatch, and API Gateway.
- Experience with Docker and Kubernetes.
- Experience with performance testing tools such as JMeter, Locust, or similar.
- Experience with Git and CI/CD platforms.
- Exposure to test automation using AI-assisted testing approaches.
- Experience designing enterprise-scale quality engineering platforms and automation frameworks.
Skills
SDET, Python, Software Quality Assurance, Testing, Automation Testing, GUI Testing, API Testing, Integration Testing, Regression Testing, Functional Testing, Distributed Systems