Application Tester
$116K - $210K/yr
Testing all aspects of the system including Java and web based front end running on Windows clients, Linux servers, and cloud technologies to ensure all components work on a variety of hardware ...
$116K - $210K/yr
Testing all aspects of the system including Java and web based front end running on Windows clients, Linux servers, and cloud technologies to ensure all components work on a variety of hardware ...
$116K - $210K/yr
Testing all aspects of the system including Java and web based front end running on Windows clients, Linux servers, and cloud technologies to ensure all components work on a variety of hardware ...
Arlington, VA · On-site
$67.50 - $90.25/hr
Security Engineer (Web Application) Location: Arlington, VA Security Clearance: Secret Duties and ... Application testing will require authenticated and non-authenticated testing to ensure full ...
Arlington, VA · On-site
$67.50 - $90.25/hr
Security Engineer (Web Application) Location: Arlington, VA Security Clearance: Secret Duties and ... Application testing will require authenticated and non-authenticated testing to ensure full ...
Herndon, VA · On-site
$116K - $210K/yr
Testing all aspects of the system including Java and web based front end running on Windows clients, Linux servers, and cloud technologies to ensure all components work on a variety of hardware ...
Herndon, VA · On-site
$116K - $210K/yr
Testing all aspects of the system including Java and web based front end running on Windows clients, Linux servers, and cloud technologies to ensure all components work on a variety of hardware ...
Chantilly, VA · On-site
Design, develop, and execute automated test scripts for web, API, and backend systems * Build and ... Perform functional, regression, integration, and performance testing * Analyze test results ...
Chantilly, VA · On-site
Design, develop, and execute automated test scripts for web, API, and backend systems * Build and ... Perform functional, regression, integration, and performance testing * Analyze test results ...
Web Application Security Testing Team Lead Location: National Capital Region Security Clearance: Secret Duties and Responsibilities The Web Application Security Testing Team Lead supports this ...
Web Application Security Testing Team Lead Location: National Capital Region Security Clearance: Secret Duties and Responsibilities The Web Application Security Testing Team Lead supports this ...
Chantilly, VA · On-site
Design, develop, and execute automated test scripts for web, API, and backend systems * Build and ... Perform functional, regression, integration, and performance testing * Analyze test results ...
Chantilly, VA · On-site
Design, develop, and execute automated test scripts for web, API, and backend systems * Build and ... Perform functional, regression, integration, and performance testing * Analyze test results ...
Design, develop, and execute automated test scripts for web, API, and backend systems * Build and ... Support manual testing efforts when needed Do you have what it takes? * Active TS/SCI with ...
Design, develop, and execute automated test scripts for web, API, and backend systems * Build and ... Support manual testing efforts when needed Do you have what it takes? * Active TS/SCI with ...
Design, develop, and execute automated test scripts for web, API, and backend systems * Build and ... Support manual testing efforts when needed Do you have what it takes? * Active TS/SCI with ...
Design, develop, and execute automated test scripts for web, API, and backend systems * Build and ... Support manual testing efforts when needed Do you have what it takes? * Active TS/SCI with ...
Design, develop, and execute automated test scripts for web, API, and backend systems * Build and ... Support manual testing efforts when needed Do you have what it takes? * Active TS/SCI with ...
Design, develop, and execute automated test scripts for web, API, and backend systems * Build and ... Support manual testing efforts when needed Do you have what it takes? * Active TS/SCI with ...
Design, develop, and execute automated test scripts for web, API, and backend systems * Build and ... Support manual testing efforts when needed Do you have what it takes? * Active TS/SCI with ...
Design, develop, and execute automated test scripts for web, API, and backend systems * Build and ... Support manual testing efforts when needed Do you have what it takes? * Active TS/SCI with ...
Mclean, VA · On-site
Web Application Engineering * Demonstrated experience developing modern web applications using ... Demonstrated experience with strong problem-solving skills including debugging, testing, and ...
Quick apply
Mclean, VA · On-site
Web Application Engineering * Demonstrated experience developing modern web applications using ... Demonstrated experience with strong problem-solving skills including debugging, testing, and ...
Python Web Application Developer Location: Tyson Corner, VA (Hybrid) Classification: Exempt ... Experience with CI/CD pipelines, automated testing, containerization, or DevOps practices.
Python Web Application Developer Location: Tyson Corner, VA (Hybrid) Classification: Exempt ... Experience with CI/CD pipelines, automated testing, containerization, or DevOps practices.
Mclean, VA · On-site
Web Application Engineering * Demonstrated experience developing modern web applications using ... Demonstrated experience with strong problem-solving skills including debugging, testing, and ...
Mclean, VA · On-site
Web Application Engineering * Demonstrated experience developing modern web applications using ... Demonstrated experience with strong problem-solving skills including debugging, testing, and ...
Python Web Application Developer Location: Tyson Corner, VA (Hybrid) Classification: Exempt ... Experience with CI/CD pipelines, automated testing, containerization, or DevOps practices.
Python Web Application Developer Location: Tyson Corner, VA (Hybrid) Classification: Exempt ... Experience with CI/CD pipelines, automated testing, containerization, or DevOps practices.
Reston, VA · On-site
Knowledgeable of performing comprehensive unit testing of assigned software modules via standard code and web application testing tools. Position requires a TS/SCI clearance. Requirements Experience ...
Reston, VA · On-site
Knowledgeable of performing comprehensive unit testing of assigned software modules via standard code and web application testing tools. Position requires a TS/SCI clearance. Requirements Experience ...
Knowledgeable of performing comprehensive unit testing of assigned software modules via standard code and web application testing tools. Position requires a TS/SCI clearance. Requirements Experience ...
Knowledgeable of performing comprehensive unit testing of assigned software modules via standard code and web application testing tools. Position requires a TS/SCI clearance. Requirements Experience ...
... Web Application Developer, you will... * Planning, conducting, and coordinating agile software ... Designing, developing, documenting, testing, and debugging software that contains logical and ...
... Web Application Developer, you will... * Planning, conducting, and coordinating agile software ... Designing, developing, documenting, testing, and debugging software that contains logical and ...
... Web Application Developer, you will... * Planning, conducting, and coordinating agile software ... Designing, developing, documenting, testing, and debugging software that contains logical and ...
Quick apply
... Web Application Developer, you will... * Planning, conducting, and coordinating agile software ... Designing, developing, documenting, testing, and debugging software that contains logical and ...
... Web Application Developer, you will... * Planning, conducting, and coordinating agile software ... Designing, developing, documenting, testing, and debugging software that contains logical and ...
... Web Application Developer, you will... * Planning, conducting, and coordinating agile software ... Designing, developing, documenting, testing, and debugging software that contains logical and ...
Python Web Application Developer Location: Tyson Corner, VA (Hybrid) Classification: Exempt ... Experience with CI/CD pipelines, automated testing, containerization, or DevOps practices.
Python Web Application Developer Location: Tyson Corner, VA (Hybrid) Classification: Exempt ... Experience with CI/CD pipelines, automated testing, containerization, or DevOps practices.
$5.24 - $9.86
0% of jobs
$9.86 - $14.47
0% of jobs
$14.47 - $19.09
0% of jobs
$19.09 - $23.70
0% of jobs
$23.70 - $28.32
0% of jobs
$28.32 - $32.93
0% of jobs
$32.93 - $37.55
0% of jobs
$37.55 - $42.16
14% of jobs
$44.52 is the 25th percentile. Wages below this are outliers.
$42.16 - $46.78
21% of jobs
The median wage is $48.54 / hr.
$46.78 - $51.39
38% of jobs
$51.61 is the 75th percentile. Wages above this are outliers.
$51.39 - $56.01
26% of jobs
$5
$48
$56
A typical day for a Web Application Tester involves reviewing software requirements, designing and executing test cases, documenting bugs, and working closely with developers to verify issue resolution. Testers may participate in daily standup meetings if working in an Agile environment and regularly update test documentation and reports. They use a combination of manual and automated testing methods to ensure the application works as intended across different browsers and devices. Collaboration with developers, product managers, and UI/UX designers is common to address any discovered issues and provide feedback on user experience. This dynamic role requires adaptability and proactive communication to help deliver high-quality web applications.
To thrive as a Web Application Tester, you need a solid understanding of software testing methodologies, web technologies (HTML, CSS, JavaScript), and a keen eye for detail, often supported by a degree in computer science or related fields. Familiarity with automated testing tools like Selenium, bug tracking systems such as JIRA, and certifications like ISTQB are frequently expected. Strong analytical thinking, communication skills, and the ability to work collaboratively within agile teams are key soft skills for this role. These skills ensure that web applications are thoroughly tested for quality, usability, and reliability before reaching end-users.
A Web Application Tester is responsible for evaluating web applications to identify bugs, security vulnerabilities, and performance issues. They design and execute test cases, perform manual and automated testing, and report defects to developers. Their goal is to ensure the application functions correctly, meets user requirements, and provides a seamless user experience. Testers often work closely with developers, business analysts, and project managers to improve software quality.

8.4
Based on 149 frontline employees who took The Breakroom Quiz
56th of 451 rated business services
Leidos is seeking a highly motivated and focused individual to join the Test team on a high-profile, fast-paced and dynamic project. Candidates must possess an active TS/SCI with Polygraph Security Clearance in order to be considered.
Primary Responsibilities: The Tester will be responsible for:
Testing all aspects of the system including Java and web based front end running on Windows clients, Linux servers, and cloud technologies to ensure all components work on a variety of hardware ranging from simple workstations, a variety of devices including but not limited to mobile and high-end servers.
Tester must have sufficient experience to build and configure workstations and/or servers independently or with minimal guidance to create test environments that mirror a multitude of installed baselines.
May be asked to create tests for ad hoc situations such as replicating field-reported problems or load testing under specific conditions.
Must possess a tempered level of confidence that leaves room for regular teamwork, collaboration as well as self-motivation and initiative.
Responsible for clearly communicating and engaging with the test and development teams and the Release Manager to continuously support and move solid test-driven development principles and priorities into the work environment.
Give support and knowledge effectively ensure the team at-large has full and complete understanding of relevant principles to enable the development team to move swiftly and smoothly to correct or change course and execute on all requirements.
Some travel is required between locations for hands-on work where hardware resides.
Basic Qualifications:
Requires BS degree and at least 12 years of prior relevant experience or Masters with at least10 years of prior relevant experience. May possess a Doctorate in technical domain
Must have an active TS/SCI with Poly to be considered.
Experience with manually testing of web-based applications (e.g. Java, J2EE, JSP, technologies, including EJBs and Web Services)
Ability to work in a team environment as much as staying focused when working independently with only high level goals
Ability to explain technical procedures and results clearly and accurately to both technical and non-technical audiences.
Experience with detecting, tracking, reporting, and communicating any test defects effectively.
Must be able to execute duties professionally, expeditiously and successfully and be open to ad hoc tasking in support of burdened team members
Some travel between locations for hands-on work where hardware resides
Desired Skills
Experience with Jira, agile development methodologies and test driven development.
Test automation
Scripting experience
Ability to juggle competing priorities
Experience testing on MacOS
Strong oral and written communication skills
If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.
Original Posting:June 16, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
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At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainable practices. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community.
It services
10,000+ Employees
Reston, VA, US