6,839 Software Test jobs in the United States

ManTech seeks a motivated, career and customer-oriented Software Test Engineer to join our team in Hanover, MD.  

This team provides software development support for an organization that is tasked with dissemination of data to various customers within the Intelligence Community.
 

Responsibilities include, but are not limited to:

• Leading the development of Software Assurance Analysis methodologies, formulating, and validating testing scores, creating, and validating test cases that support Software Assurance (SwA) tool analysis.
• Provide technical expertise in the testing of client software and providing remediation recommendations with clients.
• Mentoring junior Software Assurance Evaluation Engineers providing advice, guidance, consultation and teaching state-of-the-art software assurance testing and analysis techniques
• Lead efforts in defining new methods and techniques for software assurance testing and analysis; and surveying industry to identify new source code SwA tools and methodologies.
• Tuning and running source code analysis tools, evaluating the strengths and weaknesses, and determining the suitability for a given software/customer while interpreting, prioritizing, and using source code SwA tools results to remediate potential vulnerabilities in software.
   

Minimum Qualifications:

• 5 + years in software analysis related experience
• Experience with evaluating the strengths and weaknesses and determining the suitability of software in a given software/customer environment.
• Experience designing, implementing and testing source code SwA analysis processes.
• Programming experience in Java, C/C++, or C#.
• Experience developing & consulting on code for production systems using structured development environments.
   

Preferred Qualifications:

• Experience with RUST
• Experience with some or all the below technologies:
  • Klockwork
  • CodePeer
  • Fortran-Lint
  • CodeSonar
  • Security Fortify
  • IDA Pro
  • MATLAB
     

Security Clearance Requirements:

• Active TS/SCI w/ Polygraph
   

Physical Requirements:

• Must be able to remain in a stationary position 50%.
• Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer.
• The person in this position frequently communicates with co-workers, management, and customers, which may involve delivering presentations.

ManTech seeks a motivated, mission-focused Software Test Engineer to join our team in Hanover, MD . As part of a dynamic team, you will support software development initiatives for a mission-critical organization within the Intelligence Community, focused on secure and reliable data dissemination.

Responsibilities include, but are not limited to:

• Analyze source code using automated Software Assurance (SwA) tools and collaborate with team members on assessment results.

• Develop and execute test methodologies, scoring criteria, and test cases to support SwA tool analysis.

• Perform software testing and interface with clients to recommend effective remediation strategies.

• Create technical documentation and comprehensive test reports.

• Utilize, fine-tune, and evaluate the suitability of SwA tools for specific customer environments.

• Interpret SwA tool results to detect vulnerabilities and drive secure coding practices.

• Research and assess emerging SwA tools and methodologies to enhance software security analysis.

Minimum Qualifications

• 12 years of experience in systems security engineering, software programming, or computer science; OR 8 years of experience with a Master’s Degree.

• Hands-on programming experience in Java, C/C++, or C#.

Preferred Qualifications

Experience with some or all of the following programming languages:

• ADA

• ASM

• Y86_64

• Power PC

• MIPS

• RUST

• Experience with some or all of the following technologies:

• Klockwork

• CodePeer

• Fortran-Lint

• CodeSonar

• Security Fortify

• IDA Pro

• MATLAS

Security Clearance Requirements

• Active TS/SCI with Polygraph

Physical Requirements

• Must be able to remain in a stationary position 50% of the time.

• Constant operation of a computer and other standard office equipment such as a calculator, copy machine, and printer.

• Frequent communication with co-workers, management, and customers; may involve delivering presentations.

ManTech seeks a motivated, mission-focused Software Test Engineer to join our team in Hanover, MD . As part of a dynamic team, you will support software development initiatives for a mission-critical organization within the Intelligence Community, focused on secure and reliable data dissemination.

Responsibilities include, but are not limited to:

• Analyze source code using automated Software Assurance (SwA) tools and collaborate with team members on assessment results.

• Develop and execute test methodologies, scoring criteria, and test cases to support SwA tool analysis.

• Perform software testing and interface with clients to recommend effective remediation strategies.

• Create technical documentation and comprehensive test reports.

• Utilize, fine-tune, and evaluate the suitability of SwA tools for specific customer environments.

• Interpret SwA tool results to detect vulnerabilities and drive secure coding practices.

• Research and assess emerging SwA tools and methodologies to enhance software security analysis.

Minimum Qualifications

• 12 years of experience in systems security engineering, software programming, or computer science; OR 8 years of experience with a Master’s Degree.

• Hands-on programming experience in Java, C/C++, or C#.

Preferred Qualifications

Experience with some or all of the following programming languages:

• ADA

• ASM

• Y86_64

• Power PC

• MIPS

• RUST

• Experience with some or all of the following technologies:

• Klockwork

• CodePeer

• Fortran-Lint

• CodeSonar

• Security Fortify

• IDA Pro

• MATLAS

Security Clearance Requirements

• Active TS/SCI with Polygraph

Physical Requirements

• Must be able to remain in a stationary position 50% of the time.

• Constant operation of a computer and other standard office equipment such as a calculator, copy machine, and printer.

• Frequent communication with co-workers, management, and customers; may involve delivering presentations.

ManTech seeks a motivated, career and customer-oriented Software Test Engineer to join our team in Hanover, MD.  

This team provides software development support for an organization that is tasked with dissemination of data to various customers within the Intelligence Community.
 

Responsibilities include, but are not limited to:

• Leading the development of Software Assurance Analysis methodologies, formulating, and validating testing scores, creating, and validating test cases that support Software Assurance (SwA) tool analysis.
• Provide technical expertise in the testing of client software and providing remediation recommendations with clients.
• Mentoring junior Software Assurance Evaluation Engineers providing advice, guidance, consultation and teaching state-of-the-art software assurance testing and analysis techniques
• Lead efforts in defining new methods and techniques for software assurance testing and analysis; and surveying industry to identify new source code SwA tools and methodologies.
• Tuning and running source code analysis tools, evaluating the strengths and weaknesses, and determining the suitability for a given software/customer while interpreting, prioritizing, and using source code SwA tools results to remediate potential vulnerabilities in software.
   

Minimum Qualifications:

• 5 + years in software analysis related experience
• Experience with evaluating the strengths and weaknesses and determining the suitability of software in a given software/customer environment.
• Experience designing, implementing and testing source code SwA analysis processes.
• Programming experience in Java, C/C++, or C#.
• Experience developing & consulting on code for production systems using structured development environments.
   

Preferred Qualifications:

• Experience with RUST
• Experience with some or all the below technologies:
  • Klockwork
  • CodePeer
  • Fortran-Lint
  • CodeSonar
  • Security Fortify
  • IDA Pro
  • MATLAB
     

Security Clearance Requirements:

• Active TS/SCI w/ Polygraph
   

Physical Requirements:

• Must be able to remain in a stationary position 50%.
• Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer.
• The person in this position frequently communicates with co-workers, management, and customers, which may involve delivering presentations.

ManTech seeks a motivated, career and customer-oriented Software Test Engineer to join our team in Hanover, MD.  

This team provides software development support for an organization that is tasked with dissemination of data to various customers within the Intelligence Community.
 

Responsibilities include, but are not limited to:

• Leading the development of Software Assurance Analysis methodologies, formulating, and validating testing scores, creating, and validating test cases that support Software Assurance (SwA) tool analysis.
• Provide technical expertise in the testing of client software and providing remediation recommendations with clients.
• Mentoring junior Software Assurance Evaluation Engineers providing advice, guidance, consultation and teaching state-of-the-art software assurance testing and analysis techniques
• Lead efforts in defining new methods and techniques for software assurance testing and analysis; and surveying industry to identify new source code SwA tools and methodologies.
• Tuning and running source code analysis tools, evaluating the strengths and weaknesses, and determining the suitability for a given software/customer while interpreting, prioritizing, and using source code SwA tools results to remediate potential vulnerabilities in software.
   

Minimum Qualifications:

• 5 + years in software analysis related experience
• Experience with evaluating the strengths and weaknesses and determining the suitability of software in a given software/customer environment.
• Experience designing, implementing and testing source code SwA analysis processes.
• Programming experience in Java, C/C++, or C#.
• Experience developing & consulting on code for production systems using structured development environments.
   

Preferred Qualifications:

• Experience with RUST
• Experience with some or all the below technologies:
  • Klockwork
  • CodePeer
  • Fortran-Lint
  • CodeSonar
  • Security Fortify
  • IDA Pro
  • MATLAB
     

Security Clearance Requirements:

• Active TS/SCI w/ Polygraph
   

Physical Requirements:

• Must be able to remain in a stationary position 50%.
• Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer.
• The person in this position frequently communicates with co-workers, management, and customers, which may involve delivering presentations.

Software Test Engineer

Location - Herndon, VA

Job Description:

With our employees as our priority, we provide diverse career opportunities designed to propel development and boost agility. Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work.

At Cinteot, we place an emphasis on empowering our employees by fostering innovation, integrity, and exemplifying the epitome of corporate responsibility.

Cinteot in Herndon, VA is seeking a Full Time Software Test Engineer. In this role, you will collaborate with a team of 3 - 5 other developers to develop mission critical software used around the world and engineer solutions to solve complex customer needs. The successful candidate will have experience and/or knowledge of software development, software design practices, and database structures.

Must be a US Citizen; this position will require obtaining a government security clearance. This position is located at a facility that requires special access.

Basic Qualifications:

Bachelors degree from an accredited college in science and technology related disciplines such as Mathematics, Computer Science, Systems Engineering, Electrical Engineering, Computer Engineering, Physics, Information Technology, Management Information Systems, Cyber Security or related discipline.

Applicants selected will be subject to a government security investigation and must meet eligibility requirements for access to classified information, including US Citizenship. Ability to obtain a TS/SCI Clearance required for this role.

Desired Skills:

Candidate will have knowledge of basic software practices such as coding standards, unit testing and configuration management, database and System administration. Good communication skills. Strong team player. Candidate will work in a team environment utilizing software methodologies and processes. Familiarity with Agile Development Process a plus. Strong communication skills a results oriented team player, creative thinker and problem-solver and follow all ethical standards of Cinteot.

Security Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration.

Clearance Level: TS/SCI w/Poly (If you have a TS we can sponsor for SCI and CI Poly)

Benefits:

• Complete Insurance Coverage

• Blue Cross Medical, Delta Dental, Vision, Life

• 401k with Company Contribution

• Tuition Reimbursement

• Generous Paid Time Off (including your birthday!)

Cinteot is an Equal Opportunity Employer

All qualified applicants will receive consideration for employment without regard to race, sex, color, religion, sexual orientation, gender identity, national origin, protected veteran status, or on the basis of disability.

• Creating, maintaining, and executing test plans.
• Writing code and applications used for testing.
• Estimating test efforts.
• Collaborating with and assisting developers with timely delivery of release candidates and hot fixes from the field
• Writing and reviewing unit tests and integration results for coverage analysis.
• Provide both white-box and black-box testing.
• Investigating issues revealed by test case failures and working on solutions.
• Automate test cases using the same coding languages (C++, Python) as the developers.
• Perform manual, exploratory, and automation script development efforts.
• Proficient in configuring hardware setups to support accurate and efficient testing.
• Implement and uphold test development standards across all phases of the software development lifecycle.

• A bachelor's degree in computer science, engineering, or a related field.
• Strong programming skills and knowledge of programming languages and process management methodology.
• Familiarity with test methodologies and corresponding tools.
• Experience in both programming and testing.
• 5+ years of experience in testing or quality roles.
• 2 + years of experience with Python.
• Experience with test automation frameworks and tools
• Experience working in an Agile environment.
• Hands-on experience with writing test automation code.
• Qualified candidates must have the ability to obtain a security clearance. This requires U.S. Citizenship.

• 3 + years of experience with C++.

• Healthcare, Dental, and Vision (100% coverage for Employees)
• Paid time off, including vacation, sick, paid holidays, and parental leave
• Short and Long-Term Disability
• Flexible Spending Account (FSA)
• 401(k) Retirement Plan
• Voluntary Worksite Benefits (Accident, Critical Illness, and Hospital Indemnity)

Description

Looking for an opportunity to make an impact?

Leidos is dedicated to making the world a safer place. This starts with helping our customers in the Defense Industry achieve their critical missions. Our dedicated Defense Group employees are solving critical challenges across the globe. 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 sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business.

Are you ready for your next career challenge?

The Airborne Systems Business Area, part of the Defense Sector at Leidos, currently has an opening for a cleared Test Engineer to work in our office near Hanscom AFB, MA. This is an exciting opportunity to use your experience helping the Air Force Research Lab, Air Force Lifecycle Management Center, and other DoD missions. Your role will be to support our diverse portfolio of programs through a combination of software design and development, hardware interfacing and integration, laboratory experimentation, ground and flight testing to deploy cutting edge, next generation solutions.

Primary Responsibilities

• Works with the project team to ensure testability of software and system requirements and capabilities.

• Troubleshoots software & systems

• Applies appropriate principles, standards, processes, procedures and tools throughout the software development life cycle.

• Duties include software requirements analysis, analysis of hardware compatibility, development of software products and tools used for design, development and maintenance of infrastructure, and platforms

• Collaborate with Test Team members over execution of the test process.

• Collaborates with the Cybersecurity team as required to support the RMF process

• Creates test plan and procedures for embedded software to verify capabilities and requirements; including interface testing.

• May brief parties external to the organization (e.g., sub-contractors, vendors, etc.)

Basic Qualifications

• Bachelor's degree and 2+ years of prior relevant experience or a Master's degree in relevant field: OR additional years of experience in lieu of degree.

• ?Must be a US Citizen

• Must have an active DoD TS clearance with the ability to obtain TS/SCI

• Experience working with embedded systems

• Experience working in a SIL and HWIL environment

• Ability to liaise with, speak and present effectively to personnel at all levels of the organization.

• Ability to work independently and as part of a test team.

• Demonstrated test plan and test report writing skills.

• Demonstrated ability to develop and execute test plans and test reporting

• Experience in data collection and analysis to verify accuracy of test objectives met.

• Strong desire to grow and learn new technologies.

• Ability to communicate effectively in writing and verbally from informal one-on-one discussions or in a small group environment.

• Ability to work within a dynamic work environment, ability to handle multiple tasks at once (multi-task)

Preferred Qualifications

• Active DoD TS/SCI clearance

• Datalink/Mesh Network testing experience

• COMSEC Experience

• Familiar with Agile Methodologies, preferably SCRUM or Kanban

• Experience with Atlassian tools such as JIRA, Confluence, Bitbucket, Zephyr, TestRail

At Leidos, we don't want someone who "fits the mold"-we want someone who melts it down and builds something better. This is a role for the restless, the over-caffeinated, the ones who ask, "what's next?" before the dust settles on "what's now."

If you're already scheming step 20 while everyone else is still debating step 2. good. You'll fit right in.

Original Posting:

August 22, 2025

At Leidos, we don't want someone who "fits the mold"-we want someone who melts it down and builds something better. This is a role for the restless, the over-caffeinated, the ones who ask, "what's next?" before the dust settles on "what's now."

If you're already scheming step 20 while everyone else is still debating step 2. good. You'll fit right in.

Pay Range:

Pay Range $67,600.00 - $122,200.00

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.

REQNUMBER: R-00165190

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. Leidos will consider qualified applicants with criminal histories for employment in accordance with relevant Laws. Leidos is an equal opportunity employer/disability/vet.

Job Description

Insight Global is seeking a self-motivated and team-oriented Software Test Engineer to support product development through manufacturing. You will collaborate with cross-functional teams-including Engineering, Platform Design, and Contract Manufacturers-to develop and maintain test software that ensures high-quality production of cutting-edge networking products used in data centers and AI applications.

What You'll Do:

• Develop and maintain automated test scripts for final system testing of switches using Python and/or Go.

• Design and implement web-based GUIs for production test infrastructure using frameworks like Django and databases such as MariaDB.

• Create manufacturing test plans based on hardware and platform specifications.

• Lead defect reduction efforts and debug complex system-level issues in manufacturing.

• Manage test infrastructure procurement, deployment, and maintenance.

• Improve test processes to enhance efficiency, consistency, and yield at manufacturing sites.

• Maintain and update test programs and scripts across global manufacturing sites.

We are a company committed to creating diverse and inclusive environments where people can bring their full, authentic selves to work every day. We are an equal opportunity/affirmative action employer that believes everyone matters. Qualified candidates will receive consideration for employment regardless of their race, color, ethnicity, religion, sex (including pregnancy), sexual orientation, gender identity and expression, marital status, national origin, ancestry, genetic factors, age, disability, protected veteran status, military or uniformed service member status, or any other status or characteristic protected by applicable laws, regulations, and ordinances. If you need assistance and/or a reasonable accommodation due to a disability during the application or recruiting process, please send a request to learn more about how we collect, keep, and process your private information, please review Insight Global's Workforce Privacy Policy:

Skills and Requirements

• Bachelor's degree in computer science, Electrical Engineering, or a related field.

• Linux experience in a development or testing environment.

• Networking experience, including troubleshooting, debugging, and working with databases.

• Proficiency in Python for scripting and automation.

• Open to candidates with varying levels of experience. null

We are a company committed to creating diverse and inclusive environments where people can bring their full, authentic selves to work every day. We are an equal employment opportunity/affirmative action employer that believes everyone matters. Qualified candidates will receive consideration for employment without regard to race, color, ethnicity, religion,sex (including pregnancy), sexual orientation, gender identity and expression, marital status, national origin, ancestry, genetic factors, age, disability, protected veteran status, military oruniformed service member status, or any other status or characteristic protected by applicable laws, regulations, andordinances. If you need assistance and/or a reasonable accommodation due to a disability during the application or the recruiting process, please send a request to