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Onsite TS/SCI Automated Test Engineer – Chantilly (Selenium/Playwright)

Ardent Principles, Inc.
Chantilly, Virginia, USFull-timeMidPosted Jun 25, 2026
SeleniumPlaywright

About this role

This mid-level role at Ardent Principles focuses on enhancing software reliability through automated scripts using both Selenium and Playwright within a secure environment in Chantilly. Successful candidates will be responsible for ensuring cross-system compatibility and maintaining rigorous quality standards for secure software solutions.

Best fit for

This role is best for a mid-level QA professional with a high-level security clearance who is proficient in both legacy and modern automation frameworks like Selenium and Playwright.

Skills you need for this role

Curated for this role by AI, grouped by discipline.

Automation skills

  • Selenium — It serves as a core tool for designing and executing the automated web test scripts required for this position.
  • Playwright — This modern framework is explicitly required for validating high-performance software compatibility across diverse systems.

Job description

Ardent Principles, Inc. is seeking an Automated Test Engineer to design and execute automated test scripts while validating software compatibility across various systems. Located in Chantilly, VA, this full-time position offers a competitive salary and comprehensive benefits including 100% employer-covered health insurance.The ideal candidate will have experience with Selenium and Playwright and a strong emphasis on quality assurance in software delivery. Join us to build innovative and secure solutions.#J-18808-Ljbffr

Job highlights

  • •Role: Onsite TS/SCI Automated Test Engineer – Chantilly (Selenium/Playwright)
  • •Company: Ardent Principles, Inc.
  • •Location: Chantilly, Virginia, US
  • •Type: Full-time
  • •Experience: Mid
  • •Seniority: Mid
  • •Posted: Jun 25, 2026

Key skills: Selenium · Playwright

How to prepare for this interview

A 5-step prep plan tailored to this job's stack.

  1. 1Review standard Selenium WebDriver design patterns, focusing on Page Object Model for maintainable test suites.
  2. 2Practice Playwright-specific features such as auto-waiting, trace viewers, and handling asynchronous web components.
  3. 3Prepare to discuss strategies for cross-browser and cross-system compatibility testing within automated pipelines.
  4. 4Brush up on testing methodologies for secure software environments, given the TS/SCI requirement mentioned in the title.
  5. 5Analyze common automation failure points and be ready to explain how to debug failing scripts in both Selenium and Playwright.

Likely interview questions for this role

Tuned to the stack we detected on this job.

  • Q1.How do you decide whether to use Selenium or Playwright for a specific UI automation task?
  • Q2.Can you describe your process for validating software compatibility across different system architectures?
  • Q3.How do you handle dynamic elements and synchronization issues in Playwright compared to Selenium?
  • Q4.What is your approach to organizing and maintaining a large library of automated test scripts?
  • Q5.In a secure environment, how do you manage test data and sensitive credentials within your automation framework?
Rehearse with AI Mock Interview Full interview prep guide

Salary context

Compensation not disclosed.

The employer has not published a specific salary range for this Chantilly-based position. However, Ardent Principles notes that they offer a competitive salary alongside comprehensive benefits, notably includinga competitive range% employer-covered health insurance premiums. To understand the current market value for an Automated Test Engineer with Selenium and Playwright expertise in the Virginia area, we recommend checking our internal salary guide and benchmarks based on similar mid-level automation roles.

See QA/SDET salary benchmarks →

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