Software Development Engineer (SDET)
Merrifield, VA
Experience: 0
Category: Information Technology
Contractor Work Model: Hybrid
Brand: System One
Job ID: 348054
Date Posted: 03/20/2026
Shortcut: http://jobs.systemone.com/iyiJiY
Job Title: Senior Software Development Engineer (SDET)
Location: Hybrid Work Model Reporting to Vienna, VA, Pensacola, FL, San Diego, CA
Pay Rate: Open to Both C2C and W2 options
Position Type: Multiyear Contract
Responsibilities
- Work with engineers to troubleshoot and remediate automation issues in testing and deploying environments
- Work alongside developers as well as the business stakeholders and strive to automate the acceptance criteria
- Understand, and implement agile development methodologies while working with teams using the Sprint/Scrum methodology of agile
- Understand project documents, customer demands, and product objectives to create and execute test cases
- Test complex API, web and mobile based applications that reference database back-end systems
- Support non-functional requirements such as, performance testing
- Set up, maintain, and perform test automation frameworks on multiple application platforms, such as Mobile, Desktop, and Web, and building test scenarios and acceptance tests
- Participate in all agile ceremonies (standups, planning, backlog refinement, reviews, etc.) ensuring QA and testing is continuously represented and effectively incorporated into all aspects of the project
- Own end-to-end test strategy, analyze requirements, build test plan, design test cases and implement test automation for applications of moderate to high complexity
- Manage the final quality on production release
- Develop, execute, and maintain automation test scripts to meet software release deliverables, project testing requirements and other quality considerations
- Develop smoke, functional, regression, and integration test suites for UI, API Services, and databases
- Develop and execute manual test cases to detect issues that cannot be detected through automated means (when needed)
- Design customer centric automation test processes for all existing and new product development
- Apply a strong understanding of software testing/delivery to build and maintain automated test harnesses and test suites using scripting languages and industry tools
- Ability to advocate for Improvements in automation engineering efforts to the executive management team
Requirements
- At least 5 years overall SDET and/or development hands on experience
- At least 2 years of mobile apps test automation experience in Android and/or iOS, Web, API
- At least 4 years of professional experience in software test automation, including creation and deployment of frameworks and design and maintenance of test automation
- At least 2 years of API Automation Testing
- Experience with agile development methodology
- Experience with Cl/CD pipelines using tools such as GitHub, Jenkins, JUnit, Selenium, Cucumber, etc.
- Experience with Test Driven Development (TDD), BDD Behavior Driven Development, and Agile (XP)
- Experience with Test processes, open-source test frameworks, test design strategies, writing test cases, and automating tests in Java with frameworks like JUnit/TestNG, Selenium, JMeter and Appium
- Experience working with a ticketing system such as Service Now or Jira
- Hands on experience with any cloud technology platforms, preferably Microsoft Azure
- Must have hands on experience in Selenium Scripting, and SQL querying
- Must have hands on experience utilizing cloud hosted testing platforms such as Perfecto
- Proficient in debugging issues
- Proficient in Java
- Proficient in writing functional automation (UI/API)
- Solid foundation in data structures, algorithms, design patterns and strong analytical and problem-solving skills
- Working knowledge of Pull requests, code reviews, etc.
System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.
System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.
Ref: #851-Rockville-S1
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