Software Development Engineer in Test - SDET

Compunnel

$110K — $130K *
Plano, TX 75025In-Person
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 7+ years in software testing or quality engineering
  • Strong programming skills in C#
  • Extensive experience with Selenium WebDriver and API automation
  • Proven ability to create automation frameworks from scratch
  • Strong SQL and data validation skills
  • Familiarity with ATDD and BDD practices
  • Experience integrating tests within CI/CD pipelines.

Responsibilities

  • Design and maintain automated test frameworks using C# and Selenium WebDriver
  • Build new automation frameworks for web and API testing
  • Develop and troubleshoot automation scripts within existing frameworks
  • Perform API validation for REST and SOAP services
  • Analyze and resolve root causes of automation failures
  • Collaborate with developers to debug issues and improve reliability
  • Support release activities with clear test results and quality recommendations.

Benefits

  • Collaborative work environment across cross-functional teams
  • Opportunities for continuous improvement and process enhancement
  • Involvement in high-impact software quality initiatives
  • Flexibility to support urgent production releases as needed
  • Possibility to work with innovative testing tools and technologies.
Full Job Description
Job Summary
The Software Development Engineer in Test (SDET) will be responsible for designing, developing, and maintaining automated testing solutions across web, API, service, integration, and end-to-end application layers. The role requires strong programming expertise in C#, extensive experience with Selenium WebDriver and API automation, and the ability to build and enhance automation frameworks. This position will collaborate with development and cross-functional teams to improve software quality, automation reliability, release readiness, and overall quality engineering practices.

Key Responsibilities
• Design, develop, and maintain automated test frameworks for web, API, service-level, integration, and end-to-end testing using C# and Selenium WebDriver.
• Build new automation frameworks from scratch for web, API, service-level, and end-to-end testing.
• Develop and debug automation scripts within existing test frameworks.
• Perform API automation and validation for REST and SOAP services.
• Validate application behavior beyond the UI, including service responses, data transformations, event flows, and downstream system impacts.
• Develop solutions to validate complex scenarios at the code or infrastructure level.
• Perform cross-browser UI testing and responsive design testing.
• Perform SQL-based data validation across systems.
• Analyze automation failures, identify root causes, reduce test flakiness, and improve automation reliability.
• Investigate complex application, automation, data, integration, and environment issues using logs, metrics, traces, and telemetry.
• Determine root causes of issues involving databases, file systems, integrations, and other application components.
• Collaborate with development teams to troubleshoot and resolve identified issues.
• Integrate automated tests into CI/CD pipelines using tools such as Azure DevOps, Jenkins, or TeamCity.
• Ensure automated test results provide meaningful feedback for build, deployment, and release decisions.
• Support release readiness activities by providing clear test results, risk indicators, and quality recommendations.
• Support planned production releases and critical off-hours deployments as needed.
• Apply Acceptance Test Driven Development (ATDD) and Behavior Driven Development (BDD) practices.
• Continuously improve testing processes by identifying and implementing appropriate best practices, tools, and techniques.
• Provide timely and accurate testing progress and results to stakeholders.
• Collaborate with cross-functional teams to investigate and resolve reported issues.

Required Qualifications
• 7+ years of experience in software testing, test automation, or quality engineering.
• Strong hands-on programming experience with C#.
• 7+ years of test automation experience using C#, Selenium WebDriver, and API automation.
• Strong experience with Selenium WebDriver for web UI automation.
• Strong experience with API testing and automation using REST and SOAP services.
• Experience with service-level validation, integration testing, and end-to-end workflow validation.
• Experience creating automation frameworks from scratch for web, API, service-level, and end-to-end testing.
• Ability to understand existing automation frameworks and quickly develop and debug automation scripts.
• Strong SQL and data validation experience across systems.
• Experience with Acceptance Test Driven Development (ATDD) and Behavior Driven Development (BDD).
• Hands-on experience with cross-browser UI testing and responsive design testing.
• Experience integrating and executing automated tests within CI/CD environments using Jenkins, Azure DevOps, or TeamCity.
• Experience with test management and defect tracking tools such as Jira, Azure DevOps, or Confluence.
• Strong understanding of the Software Development Life Cycle (SDLC), Agile delivery, release validation, and quality engineering principles.
• Strong analytical and problem-solving skills with the ability to troubleshoot complex application and automation issues.
• Strong communication, presentation, documentation, and team coordination skills.
• Ability to collaborate effectively with development and cross-functional teams.
• Ability to support urgent quality-related activities and planned off-hours production releases as needed.

Preferred Qualifications
• Bachelor's degree in Computer Science, Software Engineering, or a related field.
• Experience within Mortgage, Financial Services, Lending, or other regulated industries.
• Experience with performance, resiliency, security, accessibility, or contract testing.
• Experience using observability tools and production telemetry for troubleshooting and improving test coverage.
• Experience with AI-assisted testing tools for test design, automation, or defect analysis.
• Experience with distributed systems, microservices, or event-driven architectures.

Similar Jobs

More Jobs at Compunnel

More Information Technology Jobs

Find similar Software Development Engineer in Test - SDET jobs: