Demo

Tester - Expert

Markon
Chantilly, VA Full Time
POSTED ON 9/24/2026
AVAILABLE BEFORE 7/20/2027

Description

Markon is seeking an experienced Tester – Expert to support mission-critical software development efforts for an Intelligence Community customer. The Tester will be responsible for developing and implementing quality assurance methodologies, designing and executing comprehensive test strategies, and ensuring software products meet established quality standards throughout the system development lifecycle.

 

The successful candidate will collaborate closely with software developers, systems engineers, product owners, and other technical stakeholders to identify defects, validate functionality, and ensure the delivery of reliable, secure, and high-quality software solutions in an Agile development environment.

Responsibilities

  • Develop, implement, and maintain quality assurance methodologies, standards, processes, and procedures.
  • Design, develop, and execute software test plans, test cases, test scripts, and test procedures.
  • Perform functional, integration, regression, system, and user acceptance testing to validate software performance and functionality.
  • Identify, document, track, and verify software defects and coordinate with development teams to ensure timely resolution.
  • Evaluate software, hardware, and associated technical documentation to ensure compliance with quality standards and system requirements.
  • Participate in formal and informal reviews throughout the software development lifecycle, including requirements, design, code, and test readiness reviews.
  • Validate system enhancements, software updates, patches, and new functionality prior to deployment.
  • Collaborate with developers, system engineers, product owners, and Scrum teams to ensure quality is integrated throughout the development process.
  • Develop and maintain test documentation, test reports, defect logs, and quality metrics.
  • Support continuous improvement of testing processes, methodologies, and automation capabilities.
  • Assist with root cause analysis and verification of corrective actions for identified issues.
  • Ensure testing activities comply with customer quality assurance standards, security requirements, and organizational policies.
  • Support Agile development efforts by participating in sprint planning, backlog refinement, reviews, and retrospectives as needed.

Qualifications

  • Active TS/SCI clearance with Full Scope Polygraph (FSP) is required.
  • Bachelor's degree in Computer Science, Information Systems, Software Engineering, or a related technical discipline.
  • Minimum of 6 years of experience in software testing, quality assurance, or software quality engineering.
  • Experience developing and executing software test plans, test cases, and test scripts.
  • Experience performing functional, integration, regression, and system testing.
  • Experience identifying, documenting, tracking, and verifying software defects using defect management tools.
  • Knowledge of software development lifecycle (SDLC) and software quality assurance best practices.
  • Experience reviewing software requirements, technical documentation, and system designs for testability and quality.
  • Strong analytical, troubleshooting, and problem-solving skills.
  • Excellent written and verbal communication skills.
  • Experience using test management, defect tracking, and Agile collaboration tools such as Jira, Azure DevOps, or similar platforms.
  • Ability to work effectively in Agile software development environments.

Desired:

  • Experience supporting Intelligence Community or Department of Defense software development programs.
  • Experience with automated testing tools and test automation frameworks.
  • Familiarity with Agile Scrum, DevSecOps, and Continuous Integration/Continuous Deployment (CI/CD) environments.
  • Experience testing web-based, cloud-native, enterprise, or distributed applications.
  • Knowledge of performance, security, and usability testing methodologies.
  • ISTQB Certified Tester, Certified Software Quality Engineer (CSQE), or other relevant quality assurance certification.

Salary Range

USD $150,000.00 - USD $190,000.00 /Yr.The Markon pay range for this position is a general guideline only and 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.

Overview

Eager to join a team where your skills are valued, your growth is nurtured, and your impact is profound? Look no further than Markon, a premier consulting firm deeply dedicated to advancing our nation's most critical missions.

 

At Markon, we don't just offer jobs – we offer opportunities for personal and professional transformation. Empowering our employees to lead, innovate, and excel, we foster an environment where new ideas are not just welcomed but celebrated. As a perennial Washington Post Top Workplace, we prioritize the well-being and success of our team members, ensuring they can bring their best selves to work.

 

Headquartered in Falls Church, Virginia, Markon has garnered national recognition for our unwavering dedication to excellence in serving the intelligence community, as well as federal civilian and defense agencies. Our growing reach extends across 17 states, 116 countries, and 5 continents, where our team of dynamic professionals collaborates to deliver unparalleled program and project management services.

 

Markon values people and the tremendous impact each individual can make – which is why we’re consistently recognized as one of the best places to work in federal government consulting. Here, you can help solve the nation’s most important challenges, surrounded by colleagues who help you grow, advance, and succeed. We are deeply dedicated to what matters – bringing out the best in each other to advance our clients’ missions.Join us and make a meaningful impact.

 

Markon is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, national origin, age, protected veteran status, or disability status. This job posting will remain open until the position is filled.

 

Benefits Offered: Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Training and Tuition Assistance, Paid Time Off, and Holidays

Salary : $150,000 - $190,000

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