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Senior Software Tester Jobs in Washington (NOW HIRING)

SSN Group LLC

Senior Software Developer

Reston, VA · On-site

$56.75 - $75/hr

Senior Software Developer Location: Reston, VA / Washington, DC.(Hybrid) Duration: Long-term ... Strong knowledge of automated testing, code reviews & secure coding * Experience with AI-assisted ...

New

Systek

Senior Software Engineer

Hanover, MD · On-site

$120K - $159K/yr

SENIOR SOFTWARE ENGINEER The company is seeking a Senior Software Engineer to provide SETA support ... Participate in the testing process through test review and analysis, test witnessing and ...

MSCCN

Sr. Software Engineer - Arlington, VA

Arlington, VA · On-site

$100K/yr

We are seeking an experienced Senior Software Engineer to join our team in developing the forefront ... Modeling & Simulation for verification and software testing Primary Responsibilities: * Analyze ...

Wrenchio LLC

Senior Software Engineer

Annapolis Junction, MD · On-site

$134K - $177K/yr

The role entails reviewing and testing software components to ensure compliance with design requirements and documenting test outcomes. Additionally, the Sr. Software Engineer addresses and resolves ...

Leidos

Sr. Software Engineer

Bethesda, MD · On-site

$107K - $195K/yr

Leidos has an exciting opportunity for a Sr. Software Engineer in our Intel Security Sector ... Develops software system validation and testing methods using Junit and Katalon and uses integrated ...

Leidos

Sr. Software Engineer

Bethesda, MD · On-site

$107K - $195K/yr

Leidos has an exciting opportunity for a Sr. Software Engineer in our Intel Security Sector ... Develops software system validation and testing methods using Junit and Katalon and uses integrated ...

Refinitiv

Senior Software Engineer

Mclean, VA · On-site

$102.20 - $189.80/hr

## Senior Software EngineerApplyremote type: Remotelocations: United States of America, McLean ... Experience designing, building, testing, and maintaining multi-service backend systems and ...

Vidoori

Senior Software Developer

Hyattsville, MD · On-site

$54.75 - $72.25/hr

Role Overview - Senior Software Developer Reporting to engineering leadership, the Senior Software ... Drive code quality through thorough code reviews, automated testing, static analysis and adherence ...

STR

Senior Software Engineer

Arlington, VA

$134K - $184K/yr

STR is hiring experienced Senior Software Engineers to join our multidisciplinary cyber/networking ... In this role, you will take a leadership role in designing, implementing, and testing software that ...

STR

Senior Software Engineer

Arlington, VA · On-site

$141K - $186K/yr

They are seeking experienced Senior Software Engineers to join their multidisciplinary cyber ... software testing, evaluation best practices, and industry-standard development lifecycles • ...

STR

Senior Software Engineer

Arlington, VA · On-site

$141K - $186K/yr

They are seeking experienced Senior Software Engineers to join their cyber/networking team to ... software testing, evaluation best practices, and industry-standard development lifecycles • ...

Vidoori

Senior Software Developer

Hyattsville, MD

$54.75 - $72.25/hr

Role Overview - Senior Software Developer Reporting to engineering leadership, the Senior Software ... Drive code quality through thorough code reviews, automated testing, static analysis and adherence ...

Vidoori Inc.

Senior Software Developer

Hyattsville, MD · On-site

$100 - $130/hr

Role Overview - Senior Software Developer Reporting to engineering leadership, the Senior Software ... Drive code quality through thorough code reviews, automated testing, static analysis and adherence ...

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Senior Software Tester information

See Washington salary details

$33

$60

$85

How much do senior software tester jobs pay per hour?

As of Aug 21, 2026, the average hourly pay for senior software tester in Washington is $60.23, according to ZipRecruiter salary data. Most workers in this role earn between $53.89 and $68.61 per hour, depending on experience, location, and employer.

What is a senior software tester?

Senior Software Testers are experienced professionals responsible for designing, implementing, and executing tests to ensure the quality and functionality of software applications. They lead testing efforts, mentor junior testers, and collaborate closely with developers to identify and resolve issues. Senior Software Testers also help define testing strategies, develop automated test scripts, and contribute to continuous improvement in software development processes. Their expertise helps ensure that released software meets both technical requirements and user expectations.

What are the key skills and qualifications needed to thrive as a senior software tester?

To thrive as a Senior Software Tester, you need expertise in software testing methodologies, test case design, and defect management, typically supported by a degree in computer science or a related field and several years of experience. Familiarity with automation tools (such as Selenium or JUnit), bug tracking systems, and relevant certifications like ISTQB is highly valued. Attention to detail, critical thinking, and strong communication skills set top performers apart in this role. These competencies ensure that software products are reliable, high-quality, and meet user requirements before release.

What are some common challenges senior software testers face when working on large-scale projects?

Senior Software Testers often encounter challenges such as managing complex test environments, coordinating with cross-functional teams, and ensuring thorough test coverage across multiple modules. Balancing tight project deadlines while maintaining high-quality standards can also be demanding. Additionally, adapting testing strategies to accommodate evolving requirements and integrating automated testing tools effectively are frequent hurdles in large-scale projects.

What is the difference between Senior Software Tester vs Software Tester?

AspectSenior Software TesterSoftware Tester
CredentialsTypically requires 3+ years experience, certifications like ISTQBEntry-level or 1-2 years experience, may have ISTQB or similar
Work EnvironmentLeads testing projects, mentors junior testersPerforms testing tasks under supervision
ResponsibilitiesDesigns test plans, reviews testing processesExecutes test cases, reports bugs

The main difference between a Senior Software Tester and a Software Tester lies in experience, responsibilities, and leadership. Senior testers often lead testing efforts and mentor others, while software testers focus on executing tests. Both roles are essential in software quality assurance and share similar credentials, but the senior role involves more strategic oversight.

What are the most commonly searched types of Software Tester jobs in Washington?

The most popular types of Software Tester jobs in Washington are:

What cities in Washington are hiring for Senior Software Tester jobs?

Cities in Washington with the most Senior Software Tester job openings:

What are popular job titles related to Senior Software Tester jobs in WA?

For Senior Software Tester jobs in WA, the most frequently searched job titles are:

Senior Software Tester jobs near you
Infographic showing various Senior Software Tester job openings in Washington as of August 2026, with employment types broken down into 1% As Needed, 83% Full Time, 6% Part Time, 2% Temporary, and 8% Contract. Highlights an 82% Physical, 4% Hybrid, and 14% Remote job distribution, with an average salary of $125,277 per year, or $60.2 per hour.

Senior Software Engineer

Que Technology Group

Fort George G Meade, MD • On-site

$135K - $179K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 17 days ago

Job description

Que Technology Group is seeking a motivated Senior Software Engineer to support the exciting Advanced Analytics Team mission. Engineer will work closely with mission stakeholders to analyze software requirements, design innovative technical solutions, develop software applications, and implement high-performance capabilities supporting advanced mission objectives.
Job responsibilities include, but are not limited to:
  • Mission Focus: Design, develop, test, debug, and maintain software applications supporting mission requirements.
  • Analyze customer needs, develop software prototypes, engineer technical solutions, implement algorithms, and translate conceptual designs into scalable software architectures.
  • Technical Proficiency: Develop and debug software using object-oriented programming languages
  • Perform software engineering and technical design activities
  • Analyze and understand legacy code
  • Develop efficient algorithms utilizing data structures, dynamic programming, heuristics, and modeling techniques
  • Conduct software testing and troubleshooting
  • Work at the operating system level, including file I/O, system interfaces, and low-level programming concepts
  • Develop advanced tools for binary analysis, shellcode detection, malware analysis, function identification, and reverse engineering of compiled software.
Required Qualifications:
  • Bachelor's degree plus 11-years of relevant experience or equivalent.
  • Proficiency with Python, and ability to read/understand C/C++, and Assembly (x86).
  • Experience with software architecture, operating system design, compilers, and debugging.
  • Comfortable working with operating system internals, low-level software development, file I/O, system APIs, memory management, and executable program analysis.
Preferred Qualifications:
  • Familiarity with malware analysis, reverse engineering, and protocol analysis.

Security Clearance:
  • TS/SCI clearance with polygraph

BENEFITS:
  • Competitive salary
  • Company Medical/Dental/Vision plans - Company paid
  • Short-term Disability, Long-term disability and Life Insurance - Company paid
  • Business/ First Class travel upgrade for 7 hour or longer flights & company card will be provided for expenses
  • Vacation / Personal days granted at 25 days per year
  • Paid Federal Holidays - 11 days
  • $5,000 Annual Professional Development Fund plus 40 paid hours if in class
  • 401K with 6% company match; all contributions are immediately vested by Employee
  • Employee will be paid a bonus of $10,000 per employee hired based on their referral
  • Up to 3 paid Code Red days due to customer closure

Que Technology Group, Inc., is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.
www.qtg-hq.com

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