Software Engineer in Test

L.V. Enterprises; Herndon (VA); On-site; USD 120,000 - 150,000; Full time

Job summary

L.V. Enterprises is seeking a Software Development Engineer in Test (SDET) to help shape how complex, data-rich applications are tested and delivered. This role focuses on building test harnesses, mocking infrastructure, and integrating testing into CI/CD pipelines across Java, Rust, and TypeScript/React.

Relocation offered! The SDET will collaborate with researchers, engineers, and end users to translate real-world workflows into meaningful tests and maintain scalable testing practices as the

Qualifications

• Bachelor's degree in computer science, mathematics, physics, applied mathematics, or a related field.
• Experience building test infrastructure, including mocking and CI/CD integration.
• Hands-on experience with software testing and test harness development.
• Experience designing automated and manual tests.
• Software development experience in Java, Rust, or TypeScript/React.
• Strong collaboration skills and the ability to turn technical concepts into usable software.

Responsibilities

• Build and evolve test infrastructure that supports a growing production codebase.
• Develop test harnesses and mocking tools that make complex application behavior easier to validate.
• Design automated and manual testing strategies that uncover issues and improve reliability.
• Integrate testing into CI/CD pipelines so teams get useful feedback throughout development.
• Collaborate with researchers, engineers, and end users to understand real‑world workflows and translate them into meaningful tests.
• Shape maintainable testing practices that grow with the software.

Skills

Test infrastructure

Mocking tools

CI/CD integration

Software testing

Test harness development

Collaboration

Education

Bachelor's degree in computer science, mathematics, physics, applied mathematics, or related field

Tools

Java

Rust

TypeScript/React

CI/CD tooling

Job description

++Software Development Engineer in Test (SDET)– Secret Clearance Required++

++Relocation offered!++

Build the systems that put software to the test.

We’re looking for a Software Development Engineer in Test (SDET) to help shape how complex, data‑rich applications are tested and delivered. These applications help users explore challenging scenarios and make informed decisions—and your work will help ensure they perform reliably.

You’ll build test harnesses, develop mocking infrastructure, and bring testing into CI/CD pipelines across applications built with Java, Rust, and TypeScript/React. This is a hands‑on role with room to influence testing practices, strengthen release confidence, and solve engineering problems beyond individual test cases.

What you’ll do

• Build and evolve test infrastructure that supports a growing production codebase.
• Develop test harnesses and mocking tools that make complex application behavior easier to validate.
• Design automated and manual testing strategies that uncover issues and improve reliability.
• Integrate testing into CI/CD pipelines so teams get useful feedback throughout development.
• Collaborate with researchers, engineers, and end users to understand real‑world workflows and translate them into meaningful tests.
• Shape maintainable testing practices that grow with the software.

What you’ll bring

• Bachelor’s degree in computer science, mathematics, physics, applied mathematics, or a related field.
• Experience building test infrastructure, including mocking and CI/CD integration.
• Hands‑on experience with software testing and test harness development.
• Experience designing automated and manual tests.
• Software development experience in Java, Rust, or TypeScript/React.
• Strong collaboration skills and the ability to turn technical concepts into usable software.