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Senior Software Test Engineer

Kellton
Reston, VA Contractor
POSTED ON 1/28/2026 CLOSED ON 2/26/2026

What are the responsibilities and job description for the Senior Software Test Engineer position at Kellton?

Hi,

Greetings!


We are looking for Senior Test Engineer for our client in Remote location.

Below are more details on it. Please do let me know if you/your friends would be interested/available.

Thank you


Position: - Senior Test Engineer, Automation

Mode: long term temp

Location : Remote

Profile: Strong full stack engineer with a specialty with test automation


What you’ll do

Design, improve, and maintain automated testing frameworks and methodologies, and establish modern testing best practices across multiple products

Integrate automated tests into CI/CD pipelines and partner with DevOps teams to ensure stable, reliable, and scalable automated test execution environments

Develop automation scripts using tools and technologies such as Playwright, Jest, Mocha, Chai, Sinon, Selenium, Cypress, BrowserStack, and Postman

Build and execute automated tests for frontend applications, browser interactions, serverless Node.js backends, and APIs

Test and validate mobile application functionality on real iOS and Android devices, ensuring compatibility, performance, and end-to-end reliability

Develop and maintain UI automation for native mobile applications and automate backend validation for mobile workflows

Utilize AWS services, such as Lambda, S3, API Gateway, DynamoDB, and related components to validate application behavior, data processing, integrations and backend workflows



Code automated tests for:

js frontend/browser interaction

Serverless Node.js backends

Provide guidance to others in carrying out QA duties, while performing technically advanced responsibilities

Establish and maintain technical testing methodologies and processes

Develop test strategies, scenarios and plans. Oversee the development of and/or develops and maintains test data

Develop and deliver verbal and written status reports on the testing of the features

Work with software engineers and product owners to identify tests to ensure quality and accuracy of story delivery

Assist in the confirmation of bugs reported from outside sources, document and communicate them to the development team. Verify when resolved

Assist in the identification, selection, and implementation of software tools and technologies, and testing techniques and procedures that facilitate automated testing and quality assurance

About you

A bachelor’s degree in Computer Science, Engineering or MIS

5 - 7 years of experience in software systems, programming, testing and quality assurance

Working experience with tools cited above

Strong JavaScript and Node.js development experience

Solid understanding of HTML, CSS, and browser DOM

Experience working in Agile methodologies

Working experience with CICD and DevOps

Experience testing code running in Amazon Web Services, especially AWS Lambda

Experience developing testing strategies and identifying comprehensive test scenarios based on business requirements

Experience in leveraging AI tools for automated testing

Ability to mentor development team on QA automation practices and modern testing strategies

Excellent oral and written communication skills

Hourly Wage Estimation for Senior Software Test Engineer in Reston, VA
$51.00 to $58.00
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