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Senior Software Developer In Test Jobs in Washington

Senior Software Developer

Washington, DC

$61.75 - $81.50/hr

Write production-grade code with strong unit and integration test coverage * Implement and maintain ... Monitor system performance and drive improvements in latency, throughput, and reliability

Senior Software Developer

Herndon, VA · Remote

$55.75 - $73.75/hr

Senior Software Developer Location: Remote, USA Position Type: Full-Time About the company: At ... VivSoft is a diverse team of strategists, engineers, designers, and creators experienced in ...

Senior Software Developer

Reston, VA · On-site

$56.75 - $75/hr

In this role, you'll be responsible for identifying and autonomously implementing ideas and ... Support end-to-end development, from system architecture and software design to integration, test ...

New

Senior Software Developer

Fort George G Meade, MD · On-site

$60.75 - $80.25/hr

Salary: 200-220k WITS is seeking a Senior Software Developer with mid-tier, backend, and some frontend experience. The candidate must be able to work with a small team of developers with similar ...

Salary: 200-220k WITS is seeking a Senior Software Developer with mid-tier, backend, and some frontend experience. The candidate must be able to work with a small team of developers with similar ...

Senior Software Developer

Hanover, MD · On-site

$200K - $245K/yr

This position requires a strong foundation in modern software engineering practices, the ability to ... test procedures for software components * Design, develop and modify software systems, using ...

Senior Software Developer

Herndon, VA · On-site

$56 - $74/hr

Overview We are seeking a versatile Senior Software Developer with expertise in secure software ... What will you do? • Design, develop, test, and deploy secure Windows applications, services, and ...

Senior Software Developer

Fairfax, VA · On-site

$55.75 - $73.50/hr

Onsite- Fairfax, VA 3 Days and in Washington, DC 2 Days per Week. Duration: Long Term Contract Position Require a Secret Clearance The Senior Software Developer role requires a deep expertise in Java ...

Senior Software Developer

Linthicum Heights, MD · On-site

$53.50 - $70.50/hr

The Senior Software Developer will join a multi-disciplinary team of subject matter experts ... Work in a fun, collaborative environment solving complex problems to produce innovative solutions ...

SDET Developer

Silver Spring, MD · On-site

$51.75 - $66.75/hr

Software Development Engineer in Test (SDET) is to develop and execute software test plans in order to identify software problems and their causes. Strong java development skills JavaScript ...

Senior Software Developer

Linthicum, MD · On-site

$53.50 - $70.50/hr

The Senior Software Developer will join a multi-disciplinary team of subject matter experts ... Work in a fun, collaborative environment solving complex problems to produce innovative solutions ...

Sr SDET

Rockville, MD · On-site

$112K - $146K/yr

Qualifications Experience Requirements * 5+ years of cumulative experience in software development ... Experience with functional or Performance or Security or DevOps test tools. * Demonstrable ...

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Showing results 1-20

Senior Software Developer In Test information

What is the difference between Senior Software Developer In Test vs Software Development Engineer in Test?

AspectSenior Software Developer In TestSoftware Development Engineer in Test
CredentialsTypically requires a software engineering degree and testing certificationsSimilar credentials, often with certifications in testing tools or automation
Work EnvironmentWorks closely with development teams to design and implement automated testsFocuses on developing testing frameworks and automation tools within development teams
Industry UsageCommonly used in software companies emphasizing quality assuranceWidely used in tech firms with a focus on continuous integration and delivery
Search & Comparison IntentOften compared for seniority and scope of testing responsibilitiesCompared for automation skills and development focus

Both roles involve testing and automation, but Senior Software Developer In Test typically has more leadership responsibilities and strategic testing planning, while Software Development Engineer in Test focuses more on developing testing tools and automation frameworks within the development process.

What are some common challenges faced by Senior Software Developers in Test, and how can they be addressed?

Senior Software Developers in Test often encounter challenges such as balancing test automation coverage with tight deadlines, keeping up with evolving technologies, and ensuring effective communication between development and QA teams. Addressing these challenges involves prioritizing automation efforts based on risk and business impact, continually updating technical skills, and fostering a collaborative environment through regular cross-team meetings. Proactively sharing knowledge and advocating for best testing practices also help streamline workflows and maintain high-quality standards.

What is a Senior Software Developer In Test?

A Senior Software Developer In Test (SDET) is an experienced software professional who is responsible for designing, developing, and maintaining automated test frameworks and tools to ensure software quality. SDETs work closely with development and QA teams to create automated tests that validate application functionality, performance, and security. They possess strong programming skills, a deep understanding of software testing methodologies, and often contribute to both the development and testing aspects of a project. Senior SDETs also mentor junior team members and help shape best practices for software testing within their organization.

What are the key skills and qualifications needed to thrive as a Senior Software Developer In Test, and why are they important?

To thrive as a Senior Software Developer In Test, you need advanced programming skills, expertise in test automation, and a solid understanding of software development and QA methodologies, typically supported by a degree in computer science or a related field. Proficiency with test automation frameworks (such as Selenium, Cypress, or Appium), continuous integration systems (like Jenkins or GitHub Actions), and relevant certifications (e.g., ISTQB) is highly valuable. Attention to detail, problem-solving abilities, and effective communication are critical soft skills for collaborating with developers and ensuring high-quality releases. These skills and qualities are essential for identifying issues early, optimizing testing processes, and delivering reliable software in fast-paced development environments.
What are popular job titles related to Senior Software Developer In Test jobs in Washington? For Senior Software Developer In Test jobs in Washington, the most frequently searched job titles are:
What cities in Washington are hiring for Senior Software Developer In Test jobs? Cities in Washington with the most Senior Software Developer In Test job openings:
Infographic showing various Senior Software Developer In Test job openings in Washington as of July 2026, with employment types broken down into 79% Full Time, and 21% Contract. Highlights an 93% In-person, and 7% Hybrid job distribution.
Software Development Engineer (SDET)

Software Development Engineer (SDET)

System One

Merrifield, VA • On-site

$49.75 - $64.25/hr

Contractor

Medical, Dental, Vision, Life, Retirement

Posted 23 hours ago


Job description

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.

#M1 #LI-CB3 Ref: #851-Rockville-S1