Software Engineer 3 Tester (TS/SCI Clearance with Full Scope Polygraph Required)

J T; Maryland; On-site; USD 183,000 - 218,000; Full time

Benefits offered by this job

Health, Dental, Vision Insurance

Life and Disability Insurance

PTO and Holidays

401(k) Retirement Plan with Company | 

Tuition Reimbursement

Job summary

J T in Maryland seeks a senior Software Engineer 3 Tester to lead automated testing for high-throughput C++ software. You will design, build, and run test suites, modernize CI/CD and work with SDR hardware in Annapolis Junction.

Ideal candidates have extensive C++ and Python scripting experience, strong leadership skills, and a track record of delivering robust test solutions in integrated hardware/software environments.

Qualifications

• Active TS/SCI with Polygraph.
• Bachelor’s degree in Computer Science or related discipline plus 15+ years of software engineering experience on programs/contracts of similar scope and complexity, OR 19 years of relevant software engineering experience without a degree.
• Strong hands-on proficiency in C++, with Python and Shell scripting.
• Experience modernizing CI/CD pipelines and implementing automated continuous testing.
• Familiarity with SDRs and enterprise test servers.
• Proven ability to lead software test efforts and enforce QA standards.

Responsibilities

• Architect and execute automated testing suites and frameworks for complex C++ apps.
• Modernize and maintain CI/CD pipelines for automated builds and continuous testing.
• Write robust test automation scripts using Python and Shell.
• Validate interfaces against SDRs and lab server environments.
• Derive detailed performance testing criteria from requirements.
• Debug code, identify root causes, and implement remediations.
• Lead software test teams and oversee QA processes.
• Collaborate with systems and hardware engineers on trade-offs.
• Produce test procedures, reports, and design documentation.

Skills

C++

Python

Shell scripting

Test engineering

DevOps

Education

Bachelor’s degree in Computer Science or related field

19 years of relevant software engineering experience without a degree

Tools

CI/CD tools

Test automation frameworks

Job description

Clearance Requirement: Active TS/SCI with Polygraph

Salary Range: $183,000 – $218,000 / year (dependent on experience, education, and skill set)

About the Role

Seeking a senior Software Engineer 3 Tester with strong C++ and automated testing expertise to support complex, high-throughput software and test environments in Annapolis Junction, MD.

In this role, you will lead software test development, build automation, and continuous integration efforts across advanced test infrastructure. You will design, develop, and execute automated test suites for C++ software systems, modernize CI/CD pipelines to support continuous testing, and evaluate hardware/software interactions—including Software Defined Radios (SDRs) and enterprise server environments—to ensure software components strictly adhere to critical performance, timing, and interface specifications.

Key Responsibilities

Architect, develop, and execute comprehensive automated testing suites and frameworks for complex C++ applications.

Modernize and maintain CI/CD pipelines to integrate automated build processes and continuous testing workflows.

Write robust test automation scripts and utilities using Python and Shell scripting.

Validate software interfaces and integration points against physical test infrastructure, including Software Defined Radios (SDRs) and lab server environments.

Analyze user and system requirements to derive detailed software design and performance testing criteria.

Debug existing software codebases, isolate root causes of defects, and implement effective remediations.

Serve as a technical lead across software development and test teams, overseeing quality control, code reviews, and testing standards.

Confer with systems and hardware engineers to assess hardware/software trade-offs, interface constraints, and operational limitations.

Author and review comprehensive test procedures, test outcome reports, and software design documentation.

Required Qualifications & Experience

Security Clearance: Active TS/SCI with a current Polygraph.

Experience & Education:

Bachelor’s degree in Computer Science or a related discipline from an accredited institution plus at least 15 years of software engineering experience on programs/contracts of similar scope and complexity, OR

19 years of relevant software engineering experience without a degree (4 additional years substituting for the degree).

Core Languages & Scripting: Strong hands‑on proficiency in C++, complemented by Python and Shell scripting capabilities.

Test Engineering & DevOps: Demonstrated experience in CI/CD pipeline modernization and implementing automated continuous testing frameworks.

Hardware & Infrastructure: Familiarity with test infrastructure hardware, including Software Defined Radios (SDRs) and enterprise test servers.

Leadership & QA: Proven ability to lead software test efforts, establish software development process standards, and conduct quality assurance across multi‑functional engineering teams.

Benefits & Compensation

• Comprehensive Health, Dental, and Vision Insurance
• Basic Life and Disability Insurance
• Paid Time Off (PTO) and Paid Holidays
• 401(k) Retirement Plan with Company Match
• Tuition Reimbursement for ongoing education and professional development

An Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status, or any other characteristic protected under federal, state, or local law.